X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=binutils%2Fdwarf.c;h=00dad397f45d12a377e9be4a47deeefaa6b9a743;hb=846a11e4207a3365045d8482d4686d0dce5762f5;hp=0e143322712a952fdbf57b5a97cb57a0b62b788a;hpb=d80e8de27fad4f09083d6b61332d2c9ab87c2079;p=deliverable%2Fbinutils-gdb.git diff --git a/binutils/dwarf.c b/binutils/dwarf.c index 0e14332271..00dad397f4 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -1,6 +1,5 @@ /* dwarf.c -- display DWARF contents of a BFD binary file - Copyright 2005, 2006, 2007, 2008, 2009 - Free Software Foundation, Inc. + Copyright 2005-2013 Free Software Foundation, Inc. This file is part of GNU Binutils. @@ -22,10 +21,19 @@ #include "sysdep.h" #include "libiberty.h" #include "bfd.h" +#include "bfd_stdint.h" #include "bucomm.h" +#include "elfcomm.h" #include "elf/common.h" #include "dwarf2.h" #include "dwarf.h" +#include "gdb/gdb-index.h" + +#if !HAVE_DECL_STRNLEN +size_t strnlen (const char *, size_t); +#endif + +static const char *regname (unsigned int regno, int row); static int have_frame_base; static int need_base_address; @@ -53,130 +61,52 @@ int do_debug_frames_interp; int do_debug_macinfo; int do_debug_str; int do_debug_loc; +int do_gdb_index; +int do_trace_info; +int do_trace_abbrevs; +int do_trace_aranges; +int do_debug_addr; +int do_debug_cu_index; int do_wide; -/* Values for do_debug_lines. */ -#define FLAG_DEBUG_LINES_RAW 1 -#define FLAG_DEBUG_LINES_DECODED 2 +int dwarf_cutoff_level = -1; +unsigned long dwarf_start_die; -dwarf_vma (*byte_get) (unsigned char *, int); +int dwarf_check = 0; -dwarf_vma -byte_get_little_endian (unsigned char *field, int size) -{ - switch (size) - { - case 1: - return *field; - - case 2: - return ((unsigned int) (field[0])) - | (((unsigned int) (field[1])) << 8); - - case 3: - return ((unsigned long) (field[0])) - | (((unsigned long) (field[1])) << 8) - | (((unsigned long) (field[2])) << 16); - - case 4: - return ((unsigned long) (field[0])) - | (((unsigned long) (field[1])) << 8) - | (((unsigned long) (field[2])) << 16) - | (((unsigned long) (field[3])) << 24); - - case 8: - if (sizeof (dwarf_vma) == 8) - return ((dwarf_vma) (field[0])) - | (((dwarf_vma) (field[1])) << 8) - | (((dwarf_vma) (field[2])) << 16) - | (((dwarf_vma) (field[3])) << 24) - | (((dwarf_vma) (field[4])) << 32) - | (((dwarf_vma) (field[5])) << 40) - | (((dwarf_vma) (field[6])) << 48) - | (((dwarf_vma) (field[7])) << 56); - else if (sizeof (dwarf_vma) == 4) - /* We want to extract data from an 8 byte wide field and - place it into a 4 byte wide field. Since this is a little - endian source we can just use the 4 byte extraction code. */ - return ((unsigned long) (field[0])) - | (((unsigned long) (field[1])) << 8) - | (((unsigned long) (field[2])) << 16) - | (((unsigned long) (field[3])) << 24); +/* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index + sections. For version 1 package files, each set is stored in SHNDX_POOL + as a zero-terminated list of section indexes comprising one set of debug + sections from a .dwo file. */ - default: - error (_("Unhandled data length: %d\n"), size); - abort (); - } -} +static int cu_tu_indexes_read = 0; +static unsigned int *shndx_pool = NULL; +static unsigned int shndx_pool_size = 0; +static unsigned int shndx_pool_used = 0; -dwarf_vma -byte_get_big_endian (unsigned char *field, int size) +/* For version 2 package files, each set contains an array of section offsets + and an array of section sizes, giving the offset and size of the + contribution from a CU or TU within one of the debug sections. + When displaying debug info from a package file, we need to use these + tables to locate the corresponding contributions to each section. */ + +struct cu_tu_set { - switch (size) - { - case 1: - return *field; - - case 2: - return ((unsigned int) (field[1])) | (((int) (field[0])) << 8); - - case 3: - return ((unsigned long) (field[2])) - | (((unsigned long) (field[1])) << 8) - | (((unsigned long) (field[0])) << 16); - - case 4: - return ((unsigned long) (field[3])) - | (((unsigned long) (field[2])) << 8) - | (((unsigned long) (field[1])) << 16) - | (((unsigned long) (field[0])) << 24); - - case 8: - if (sizeof (dwarf_vma) == 8) - return ((dwarf_vma) (field[7])) - | (((dwarf_vma) (field[6])) << 8) - | (((dwarf_vma) (field[5])) << 16) - | (((dwarf_vma) (field[4])) << 24) - | (((dwarf_vma) (field[3])) << 32) - | (((dwarf_vma) (field[2])) << 40) - | (((dwarf_vma) (field[1])) << 48) - | (((dwarf_vma) (field[0])) << 56); - else if (sizeof (dwarf_vma) == 4) - { - /* Although we are extracing data from an 8 byte wide field, - we are returning only 4 bytes of data. */ - field += 4; - return ((unsigned long) (field[3])) - | (((unsigned long) (field[2])) << 8) - | (((unsigned long) (field[1])) << 16) - | (((unsigned long) (field[0])) << 24); - } + uint64_t signature; + dwarf_vma section_offsets[DW_SECT_MAX]; + size_t section_sizes[DW_SECT_MAX]; +}; - default: - error (_("Unhandled data length: %d\n"), size); - abort (); - } -} +static int cu_count = 0; +static int tu_count = 0; +static struct cu_tu_set *cu_sets = NULL; +static struct cu_tu_set *tu_sets = NULL; -static dwarf_vma -byte_get_signed (unsigned char *field, int size) -{ - dwarf_vma x = byte_get (field, size); +static void load_cu_tu_indexes (void *file); - switch (size) - { - case 1: - return (x ^ 0x80) - 0x80; - case 2: - return (x ^ 0x8000) - 0x8000; - case 4: - return (x ^ 0x80000000) - 0x80000000; - case 8: - return x; - default: - abort (); - } -} +/* Values for do_debug_lines. */ +#define FLAG_DEBUG_LINES_RAW 1 +#define FLAG_DEBUG_LINES_DECODED 2 static int size_of_encoded_value (int encoding) @@ -192,14 +122,21 @@ size_of_encoded_value (int encoding) } static dwarf_vma -get_encoded_value (unsigned char *data, int encoding) +get_encoded_value (unsigned char *data, + int encoding, + struct dwarf_section *section) { int size = size_of_encoded_value (encoding); + dwarf_vma val; if (encoding & DW_EH_PE_signed) - return byte_get_signed (data, size); + val = byte_get_signed (data, size); else - return byte_get (data, size); + val = byte_get (data, size); + + if ((encoding & 0x70) == DW_EH_PE_pcrel) + val += section->address + (data - section->start); + return val; } /* Print a dwarf_vma value (typically an address, offset or length) in @@ -210,12 +147,13 @@ static void print_dwarf_vma (dwarf_vma val, unsigned byte_size) { static char buff[18]; + int offset = 0; /* Printf does not have a way of specifiying a maximum field width for an integer value, so we print the full value into a buffer and then select the precision we need. */ #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) -#ifndef __MSVCRT__ +#ifndef __MINGW32__ snprintf (buff, sizeof (buff), "%16.16llx ", val); #else snprintf (buff, sizeof (buff), "%016I64x ", val); @@ -224,28 +162,99 @@ print_dwarf_vma (dwarf_vma val, unsigned byte_size) snprintf (buff, sizeof (buff), "%16.16lx ", val); #endif - fputs (buff + (byte_size == 4 ? 8 : 0), stdout); + if (byte_size != 0) + { + if (byte_size > 0 && byte_size <= 8) + offset = 16 - 2 * byte_size; + else + error (_("Wrong size in print_dwarf_vma")); + } + + fputs (buff + offset, stdout); +} + +#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) +#ifndef __MINGW32__ +#define DWARF_VMA_FMT "ll" +#else +#define DWARF_VMA_FMT "I64" +#endif +#else +#define DWARF_VMA_FMT "l" +#endif + +static const char * +dwarf_vmatoa (const char *fmtch, dwarf_vma value) +{ + /* As dwarf_vmatoa is used more then once in a printf call + for output, we are cycling through an fixed array of pointers + for return address. */ + static int buf_pos = 0; + static struct dwarf_vmatoa_buf + { + char place[64]; + } buf[16]; + char fmt[32]; + char *ret; + + sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch); + + ret = buf[buf_pos++].place; + buf_pos %= ARRAY_SIZE (buf); + + snprintf (ret, sizeof (buf[0].place), fmt, value); + + return ret; +} + +/* Format a 64-bit value, given as two 32-bit values, in hex. + For reentrancy, this uses a buffer provided by the caller. */ + +static const char * +dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf, + unsigned int buf_len) +{ + int len = 0; + + if (hvalue == 0) + snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue); + else + { + len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue); + snprintf (buf + len, buf_len - len, + "%08" DWARF_VMA_FMT "x", lvalue); + } + + return buf; } -static unsigned long int -read_leb128 (unsigned char *data, unsigned int *length_return, int sign) +/* Read in a LEB128 encoded value starting at address DATA. + If SIGN is true, return a signed LEB128 value. + If LENGTH_RETURN is not NULL, return in it the number of bytes read. + No bytes will be read at address END or beyond. */ + +dwarf_vma +read_leb128 (unsigned char *data, + unsigned int *length_return, + bfd_boolean sign, + const unsigned char * const end) { - unsigned long int result = 0; + dwarf_vma result = 0; unsigned int num_read = 0; unsigned int shift = 0; - unsigned char byte; + unsigned char byte = 0; - do + while (data < end) { byte = *data++; num_read++; - result |= ((unsigned long int) (byte & 0x7f)) << shift; + result |= ((dwarf_vma) (byte & 0x7f)) << shift; shift += 7; - + if ((byte & 0x80) == 0) + break; } - while (byte & 0x80); if (length_return != NULL) *length_return = num_read; @@ -256,15 +265,99 @@ read_leb128 (unsigned char *data, unsigned int *length_return, int sign) return result; } +/* Create a signed version to avoid painful typecasts. */ +static inline dwarf_signed_vma +read_sleb128 (unsigned char * data, + unsigned int * length_return, + const unsigned char * const end) +{ + return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end); +} + +static inline dwarf_vma +read_uleb128 (unsigned char * data, + unsigned int * length_return, + const unsigned char * const end) +{ + return read_leb128 (data, length_return, FALSE, end); +} + +#define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \ + do \ + { \ + unsigned int amount = (AMOUNT); \ + if (((PTR) + amount) >= (END)) \ + { \ + if ((PTR) < (END)) \ + amount = (END) - (PTR); \ + else \ + amount = 0; \ + } \ + if (amount) \ + VAL = byte_get ((PTR), amount); \ + else \ + VAL = 0; \ + } \ + while (0) + +#define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ + do \ + { \ + SAFE_BYTE_GET (VAL, PTR, AMOUNT, END); \ + PTR += AMOUNT; \ + } \ + while (0) + +#define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \ + do \ + { \ + unsigned int amount = (AMOUNT); \ + if (((PTR) + amount) >= (END)) \ + { \ + if ((PTR) < (END)) \ + amount = (END) - (PTR); \ + else \ + amount = 0; \ + } \ + if (amount) \ + VAL = byte_get_signed ((PTR), amount); \ + else \ + VAL = 0; \ + } \ + while (0) + +#define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ + do \ + { \ + SAFE_SIGNED_BYTE_GET (VAL, PTR, AMOUNT, END); \ + PTR += AMOUNT; \ + } \ + while (0) + +#define SAFE_BYTE_GET64(PTR, HIGH, LOW, END) \ + do \ + { \ + if (((PTR) + 8) <= (END)) \ + { \ + byte_get_64 ((PTR), (HIGH), (LOW)); \ + } \ + else \ + { \ + * (LOW) = * (HIGH) = 0; \ + } \ + } \ + while (0) + typedef struct State_Machine_Registers { - unsigned long address; + dwarf_vma address; unsigned int file; unsigned int line; unsigned int column; int is_stmt; int basic_block; - int end_sequence; + unsigned char op_index; + unsigned char end_sequence; /* This variable hold the number of the last entry seen in the File Table. */ unsigned int last_file_entry; @@ -276,6 +369,7 @@ static void reset_state_machine (int is_stmt) { state_machine_regs.address = 0; + state_machine_regs.op_index = 0; state_machine_regs.file = 1; state_machine_regs.line = 1; state_machine_regs.column = 0; @@ -289,18 +383,21 @@ reset_state_machine (int is_stmt) Returns the number of bytes read. */ static int -process_extended_line_op (unsigned char *data, int is_stmt) +process_extended_line_op (unsigned char * data, + int is_stmt, + unsigned char * end) { unsigned char op_code; unsigned int bytes_read; unsigned int len; unsigned char *name; - unsigned long adr; + unsigned char *orig_data = data; + dwarf_vma adr; - len = read_leb128 (data, & bytes_read, 0); + len = read_uleb128 (data, & bytes_read, end); data += bytes_read; - if (len == 0) + if (len == 0 || data == end) { warn (_("badly formed extended line op encountered!\n")); return bytes_read; @@ -319,29 +416,34 @@ process_extended_line_op (unsigned char *data, int is_stmt) break; case DW_LNE_set_address: - adr = byte_get (data, len - bytes_read - 1); - printf (_("set Address to 0x%lx\n"), adr); + SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end); + printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr)); state_machine_regs.address = adr; + state_machine_regs.op_index = 0; break; case DW_LNE_define_file: - printf (_(" define new File Table entry\n")); + printf (_("define new File Table entry\n")); printf (_(" Entry\tDir\tTime\tSize\tName\n")); + printf (" %d\t", ++state_machine_regs.last_file_entry); - printf (_(" %d\t"), ++state_machine_regs.last_file_entry); name = data; - data += strlen ((char *) data) + 1; - printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); + data += strnlen ((char *) data, end - data) + 1; + printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); data += bytes_read; - printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); + printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); data += bytes_read; - printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); - printf (_("%s\n\n"), name); + printf ("%s\n\n", name); + + if (((unsigned int) (data - orig_data) != len) || data == end) + warn (_("DW_LNE_define_file: Bad opcode length\n")); break; case DW_LNE_set_discriminator: - printf (_("set Discriminator to %lu\n"), - read_leb128 (data, & bytes_read, 0)); + printf (_("set Discriminator to %s\n"), + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); break; /* HP extensions. */ @@ -375,41 +477,158 @@ process_extended_line_op (unsigned char *data, int is_stmt) case DW_LNE_HP_define_proc: printf ("DW_LNE_HP_define_proc\n"); break; + case DW_LNE_HP_source_file_correlation: + { + unsigned char *edata = data + len - bytes_read - 1; + + printf ("DW_LNE_HP_source_file_correlation\n"); + + while (data < edata) + { + unsigned int opc; + + opc = read_uleb128 (data, & bytes_read, edata); + data += bytes_read; + + switch (opc) + { + case DW_LNE_HP_SFC_formfeed: + printf (" DW_LNE_HP_SFC_formfeed\n"); + break; + case DW_LNE_HP_SFC_set_listing_line: + printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + break; + case DW_LNE_HP_SFC_associate: + printf (" DW_LNE_HP_SFC_associate "); + printf ("(%s", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + printf (",%s", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + printf (",%s)\n", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + break; + default: + printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc); + data = edata; + break; + } + } + } + break; default: - if (op_code >= DW_LNE_lo_user - /* The test against DW_LNW_hi_user is redundant due to - the limited range of the unsigned char data type used - for op_code. */ - /*&& op_code <= DW_LNE_hi_user*/) - printf (_("user defined: length %d\n"), len - bytes_read); - else - printf (_("UNKNOWN: length %d\n"), len - bytes_read); + { + unsigned int rlen = len - bytes_read - 1; + + if (op_code >= DW_LNE_lo_user + /* The test against DW_LNW_hi_user is redundant due to + the limited range of the unsigned char data type used + for op_code. */ + /*&& op_code <= DW_LNE_hi_user*/) + printf (_("user defined: ")); + else + printf (_("UNKNOWN: ")); + printf (_("length %d ["), rlen); + for (; rlen; rlen--) + printf (" %02x", *data++); + printf ("]\n"); + } break; } return len; } -static const char * -fetch_indirect_string (unsigned long offset) +static const unsigned char * +fetch_indirect_string (dwarf_vma offset) { struct dwarf_section *section = &debug_displays [str].section; if (section->start == NULL) - return _(""); + return (const unsigned char *) _(""); /* DWARF sections under Mach-O have non-zero addresses. */ offset -= section->address; if (offset > section->size) { - warn (_("DW_FORM_strp offset too big: %lx\n"), offset); - return _(""); + warn (_("DW_FORM_strp offset too big: %s\n"), + dwarf_vmatoa ("x", offset)); + return (const unsigned char *) _(""); + } + + return (const unsigned char *) section->start + offset; +} + +static const char * +fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set, + dwarf_vma offset_size, int dwo) +{ + enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str; + enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index; + struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section; + struct dwarf_section *str_section = &debug_displays [str_sec_idx].section; + dwarf_vma index_offset = idx * offset_size; + dwarf_vma str_offset; + + if (index_section->start == NULL) + return (dwo ? _("") + : _("")); + + /* DWARF sections under Mach-O have non-zero addresses. */ + index_offset -= index_section->address; + if (this_set != NULL) + index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS]; + if (index_offset > index_section->size) + { + warn (_("DW_FORM_GNU_str_index offset too big: %s\n"), + dwarf_vmatoa ("x", index_offset)); + return _(""); + } + + if (str_section->start == NULL) + return (dwo ? _("") + : _("")); + + str_offset = byte_get (index_section->start + index_offset, offset_size); + str_offset -= str_section->address; + if (str_offset > str_section->size) + { + warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"), + dwarf_vmatoa ("x", str_offset)); + return _(""); + } + + return (const char *) str_section->start + str_offset; +} + +static const char * +fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes) +{ + struct dwarf_section *section = &debug_displays [debug_addr].section; + + if (section->start == NULL) + return (_("")); + + if (offset + bytes > section->size) + { + warn (_("Offset into section %s too big: %s\n"), + section->name, dwarf_vmatoa ("x", offset)); + return ""; } - return (const char *) section->start + offset; + return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes)); } + /* FIXME: There are better and more efficient ways to handle these structures. For now though, I just want something that is simple to implement. */ @@ -466,7 +685,6 @@ add_abbrev (unsigned long number, unsigned long tag, int children) abbrev_entry *entry; entry = (abbrev_entry *) malloc (sizeof (*entry)); - if (entry == NULL) /* ugg */ return; @@ -492,7 +710,6 @@ add_abbrev_attr (unsigned long attribute, unsigned long form) abbrev_attr *attr; attr = (abbrev_attr *) malloc (sizeof (*attr)); - if (attr == NULL) /* ugg */ return; @@ -528,17 +745,21 @@ process_abbrev_section (unsigned char *start, unsigned char *end) unsigned long attribute; int children; - entry = read_leb128 (start, & bytes_read, 0); + entry = read_uleb128 (start, & bytes_read, end); start += bytes_read; /* A single zero is supposed to end the section according to the standard. If there's more, then signal that to the caller. */ + if (start == end) + return NULL; if (entry == 0) - return start == end ? NULL : start; + return start; - tag = read_leb128 (start, & bytes_read, 0); + tag = read_uleb128 (start, & bytes_read, end); start += bytes_read; + if (start == end) + return NULL; children = *start++; @@ -548,152 +769,74 @@ process_abbrev_section (unsigned char *start, unsigned char *end) { unsigned long form; - attribute = read_leb128 (start, & bytes_read, 0); + attribute = read_uleb128 (start, & bytes_read, end); start += bytes_read; + if (start == end) + break; - form = read_leb128 (start, & bytes_read, 0); + form = read_uleb128 (start, & bytes_read, end); start += bytes_read; + if (start == end) + break; - if (attribute != 0) - add_abbrev_attr (attribute, form); + add_abbrev_attr (attribute, form); } while (attribute != 0); } + /* Report the missing single zero which ends the section. */ + error (_(".debug_abbrev section not zero terminated\n")); + return NULL; } -static char * +static const char * get_TAG_name (unsigned long tag) { - switch (tag) + const char *name = get_DW_TAG_name ((unsigned int)tag); + + if (name == NULL) { - case DW_TAG_padding: return "DW_TAG_padding"; - case DW_TAG_array_type: return "DW_TAG_array_type"; - case DW_TAG_class_type: return "DW_TAG_class_type"; - case DW_TAG_entry_point: return "DW_TAG_entry_point"; - case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type"; - case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter"; - case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration"; - case DW_TAG_label: return "DW_TAG_label"; - case DW_TAG_lexical_block: return "DW_TAG_lexical_block"; - case DW_TAG_member: return "DW_TAG_member"; - case DW_TAG_pointer_type: return "DW_TAG_pointer_type"; - case DW_TAG_reference_type: return "DW_TAG_reference_type"; - case DW_TAG_compile_unit: return "DW_TAG_compile_unit"; - case DW_TAG_string_type: return "DW_TAG_string_type"; - case DW_TAG_structure_type: return "DW_TAG_structure_type"; - case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type"; - case DW_TAG_typedef: return "DW_TAG_typedef"; - case DW_TAG_union_type: return "DW_TAG_union_type"; - case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters"; - case DW_TAG_variant: return "DW_TAG_variant"; - case DW_TAG_common_block: return "DW_TAG_common_block"; - case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion"; - case DW_TAG_inheritance: return "DW_TAG_inheritance"; - case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine"; - case DW_TAG_module: return "DW_TAG_module"; - case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type"; - case DW_TAG_set_type: return "DW_TAG_set_type"; - case DW_TAG_subrange_type: return "DW_TAG_subrange_type"; - case DW_TAG_with_stmt: return "DW_TAG_with_stmt"; - case DW_TAG_access_declaration: return "DW_TAG_access_declaration"; - case DW_TAG_base_type: return "DW_TAG_base_type"; - case DW_TAG_catch_block: return "DW_TAG_catch_block"; - case DW_TAG_const_type: return "DW_TAG_const_type"; - case DW_TAG_constant: return "DW_TAG_constant"; - case DW_TAG_enumerator: return "DW_TAG_enumerator"; - case DW_TAG_file_type: return "DW_TAG_file_type"; - case DW_TAG_friend: return "DW_TAG_friend"; - case DW_TAG_namelist: return "DW_TAG_namelist"; - case DW_TAG_namelist_item: return "DW_TAG_namelist_item"; - case DW_TAG_packed_type: return "DW_TAG_packed_type"; - case DW_TAG_subprogram: return "DW_TAG_subprogram"; - case DW_TAG_template_type_param: return "DW_TAG_template_type_param"; - case DW_TAG_template_value_param: return "DW_TAG_template_value_param"; - case DW_TAG_thrown_type: return "DW_TAG_thrown_type"; - case DW_TAG_try_block: return "DW_TAG_try_block"; - case DW_TAG_variant_part: return "DW_TAG_variant_part"; - case DW_TAG_variable: return "DW_TAG_variable"; - case DW_TAG_volatile_type: return "DW_TAG_volatile_type"; - case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop"; - case DW_TAG_format_label: return "DW_TAG_format_label"; - case DW_TAG_function_template: return "DW_TAG_function_template"; - case DW_TAG_class_template: return "DW_TAG_class_template"; - /* DWARF 2.1 values. */ - case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure"; - case DW_TAG_restrict_type: return "DW_TAG_restrict_type"; - case DW_TAG_interface_type: return "DW_TAG_interface_type"; - case DW_TAG_namespace: return "DW_TAG_namespace"; - case DW_TAG_imported_module: return "DW_TAG_imported_module"; - case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type"; - case DW_TAG_partial_unit: return "DW_TAG_partial_unit"; - case DW_TAG_imported_unit: return "DW_TAG_imported_unit"; - case DW_TAG_condition: return "DW_TAG_condition"; - case DW_TAG_shared_type: return "DW_TAG_shared_type"; - /* DWARF 4 values. */ - case DW_TAG_type_unit: return "DW_TAG_type_unit"; - case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type"; - case DW_TAG_template_alias: return "DW_TAG_template_alias"; - /* UPC values. */ - case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type"; - case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type"; - case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type"; - default: - { - static char buffer[100]; + static char buffer[100]; - snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); - return buffer; - } + snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); + return buffer; } + + return name; } -static char * +static const char * get_FORM_name (unsigned long form) { - switch (form) + const char *name; + + if (form == 0) + return "DW_FORM value: 0"; + + name = get_DW_FORM_name (form); + if (name == NULL) { - case DW_FORM_addr: return "DW_FORM_addr"; - case DW_FORM_block2: return "DW_FORM_block2"; - case DW_FORM_block4: return "DW_FORM_block4"; - case DW_FORM_data2: return "DW_FORM_data2"; - case DW_FORM_data4: return "DW_FORM_data4"; - case DW_FORM_data8: return "DW_FORM_data8"; - case DW_FORM_string: return "DW_FORM_string"; - case DW_FORM_block: return "DW_FORM_block"; - case DW_FORM_block1: return "DW_FORM_block1"; - case DW_FORM_data1: return "DW_FORM_data1"; - case DW_FORM_flag: return "DW_FORM_flag"; - case DW_FORM_sdata: return "DW_FORM_sdata"; - case DW_FORM_strp: return "DW_FORM_strp"; - case DW_FORM_udata: return "DW_FORM_udata"; - case DW_FORM_ref_addr: return "DW_FORM_ref_addr"; - case DW_FORM_ref1: return "DW_FORM_ref1"; - case DW_FORM_ref2: return "DW_FORM_ref2"; - case DW_FORM_ref4: return "DW_FORM_ref4"; - case DW_FORM_ref8: return "DW_FORM_ref8"; - case DW_FORM_ref_udata: return "DW_FORM_ref_udata"; - case DW_FORM_indirect: return "DW_FORM_indirect"; - /* DWARF 4 values. */ - case DW_FORM_sec_offset: return "DW_FORM_sec_offset"; - case DW_FORM_exprloc: return "DW_FORM_exprloc"; - case DW_FORM_flag_present: return "DW_FORM_flag_present"; - case DW_FORM_ref_sig8: return "DW_FORM_ref_sig8"; - default: - { - static char buffer[100]; + static char buffer[100]; - snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); - return buffer; - } + snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); + return buffer; } + + return name; } static unsigned char * -display_block (unsigned char *data, unsigned long length) +display_block (unsigned char *data, + dwarf_vma length, + const unsigned char * const end) { - printf (_(" %lu byte block: "), length); + dwarf_vma maxlen; + + printf (_(" %s byte block: "), dwarf_vmatoa ("u", length)); + + maxlen = (dwarf_vma) (end - data); + length = length > maxlen ? maxlen : length; while (length --) printf ("%lx ", (unsigned long) byte_get (data++, 1)); @@ -704,13 +847,16 @@ display_block (unsigned char *data, unsigned long length) static int decode_location_expression (unsigned char * data, unsigned int pointer_size, - unsigned long length, - unsigned long cu_offset, + unsigned int offset_size, + int dwarf_version, + dwarf_vma length, + dwarf_vma cu_offset, struct dwarf_section * section) { unsigned op; unsigned int bytes_read; - unsigned long uvalue; + dwarf_vma uvalue; + dwarf_signed_vma svalue; unsigned char *end = data + length; int need_frame_base = 0; @@ -721,51 +867,56 @@ decode_location_expression (unsigned char * data, switch (op) { case DW_OP_addr: - printf ("DW_OP_addr: %lx", - (unsigned long) byte_get (data, pointer_size)); - data += pointer_size; + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue)); break; case DW_OP_deref: printf ("DW_OP_deref"); break; case DW_OP_const1u: - printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1)); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_const1u: %lu", (unsigned long) uvalue); break; case DW_OP_const1s: - printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1)); + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end); + printf ("DW_OP_const1s: %ld", (long) svalue); break; case DW_OP_const2u: - printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2)); - data += 2; + SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); + printf ("DW_OP_const2u: %lu", (unsigned long) uvalue); break; case DW_OP_const2s: - printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2)); - data += 2; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_const2s: %ld", (long) svalue); break; case DW_OP_const4u: - printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4)); - data += 4; + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("DW_OP_const4u: %lu", (unsigned long) uvalue); break; case DW_OP_const4s: - printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4)); - data += 4; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("DW_OP_const4s: %ld", (long) svalue); break; case DW_OP_const8u: - printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4), - (unsigned long) byte_get (data + 4, 4)); - data += 8; + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue); + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("%lu", (unsigned long) uvalue); break; case DW_OP_const8s: - printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4), - (long) byte_get (data + 4, 4)); - data += 8; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("DW_OP_const8s: %ld ", (long) svalue); + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("%ld", (long) svalue); break; case DW_OP_constu: - printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0)); + printf ("DW_OP_constu: %s", + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_consts: - printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1)); + printf ("DW_OP_consts: %s", + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_dup: @@ -778,7 +929,8 @@ decode_location_expression (unsigned char * data, printf ("DW_OP_over"); break; case DW_OP_pick: - printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1)); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_pick: %ld", (unsigned long) uvalue); break; case DW_OP_swap: printf ("DW_OP_swap"); @@ -820,8 +972,8 @@ decode_location_expression (unsigned char * data, printf ("DW_OP_plus"); break; case DW_OP_plus_uconst: - printf ("DW_OP_plus_uconst: %lu", - read_leb128 (data, &bytes_read, 0)); + printf ("DW_OP_plus_uconst: %s", + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_shl: @@ -837,8 +989,8 @@ decode_location_expression (unsigned char * data, printf ("DW_OP_xor"); break; case DW_OP_bra: - printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2)); - data += 2; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_bra: %ld", (long) svalue); break; case DW_OP_eq: printf ("DW_OP_eq"); @@ -859,8 +1011,8 @@ decode_location_expression (unsigned char * data, printf ("DW_OP_ne"); break; case DW_OP_skip: - printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2)); - data += 2; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_skip: %ld", (long) svalue); break; case DW_OP_lit0: @@ -930,7 +1082,8 @@ decode_location_expression (unsigned char * data, case DW_OP_reg29: case DW_OP_reg30: case DW_OP_reg31: - printf ("DW_OP_reg%d", op - DW_OP_reg0); + printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0, + regname (op - DW_OP_reg0, 1)); break; case DW_OP_breg0: @@ -965,36 +1118,45 @@ decode_location_expression (unsigned char * data, case DW_OP_breg29: case DW_OP_breg30: case DW_OP_breg31: - printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0, - read_leb128 (data, &bytes_read, 1)); + printf ("DW_OP_breg%d (%s): %s", + op - DW_OP_breg0, + regname (op - DW_OP_breg0, 1), + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_regx: - printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0)); + uvalue = read_uleb128 (data, &bytes_read, end); data += bytes_read; + printf ("DW_OP_regx: %s (%s)", + dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); break; case DW_OP_fbreg: need_frame_base = 1; - printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1)); + printf ("DW_OP_fbreg: %s", + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_bregx: - uvalue = read_leb128 (data, &bytes_read, 0); + uvalue = read_uleb128 (data, &bytes_read, end); data += bytes_read; - printf ("DW_OP_bregx: %lu %ld", uvalue, - read_leb128 (data, &bytes_read, 1)); + printf ("DW_OP_bregx: %s (%s) %s", + dwarf_vmatoa ("u", uvalue), regname (uvalue, 1), + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_piece: - printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0)); + printf ("DW_OP_piece: %s", + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); data += bytes_read; break; case DW_OP_deref_size: - printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1)); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_deref_size: %ld", (long) uvalue); break; case DW_OP_xderef_size: - printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1)); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_xderef_size: %ld", (long) uvalue); break; case DW_OP_nop: printf ("DW_OP_nop"); @@ -1007,20 +1169,35 @@ decode_location_expression (unsigned char * data, case DW_OP_call2: /* XXX: Strictly speaking for 64-bit DWARF3 files this ought to be an 8-byte wide computation. */ - printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset); - data += 2; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_call2: <0x%s>", + dwarf_vmatoa ("x", svalue + cu_offset)); break; case DW_OP_call4: /* XXX: Strictly speaking for 64-bit DWARF3 files this ought to be an 8-byte wide computation. */ - printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset); - data += 4; + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("DW_OP_call4: <0x%s>", + dwarf_vmatoa ("x", svalue + cu_offset)); break; case DW_OP_call_ref: /* XXX: Strictly speaking for 64-bit DWARF3 files this ought to be an 8-byte wide computation. */ - printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset); - data += 4; + if (dwarf_version == -1) + { + printf (_("(DW_OP_call_ref in frame info)")); + /* No way to tell where the next op is, so just bail. */ + return need_frame_base; + } + if (dwarf_version == 2) + { + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + } + else + { + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + } + printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue)); break; case DW_OP_form_tls_address: printf ("DW_OP_form_tls_address"); @@ -1030,9 +1207,11 @@ decode_location_expression (unsigned char * data, break; case DW_OP_bit_piece: printf ("DW_OP_bit_piece: "); - printf ("size: %lu ", read_leb128 (data, &bytes_read, 0)); + printf (_("size: %s "), + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); data += bytes_read; - printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0)); + printf (_("offset: %s "), + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); data += bytes_read; break; @@ -1043,15 +1222,15 @@ decode_location_expression (unsigned char * data, case DW_OP_implicit_value: printf ("DW_OP_implicit_value"); - uvalue = read_leb128 (data, &bytes_read, 0); + uvalue = read_uleb128 (data, &bytes_read, end); data += bytes_read; - display_block (data, uvalue); + display_block (data, uvalue, end); data += uvalue; break; /* GNU extensions. */ case DW_OP_GNU_push_tls_address: - printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"); + printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown")); break; case DW_OP_GNU_uninit: printf ("DW_OP_GNU_uninit"); @@ -1061,17 +1240,101 @@ decode_location_expression (unsigned char * data, { int encoding; dwarf_vma addr; - + encoding = *data++; - addr = get_encoded_value (data, encoding); - if ((encoding & 0x70) == DW_EH_PE_pcrel) - addr += section->address + (data - section->start); + addr = get_encoded_value (data, encoding, section); data += size_of_encoded_value (encoding); printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); print_dwarf_vma (addr, pointer_size); } break; + case DW_OP_GNU_implicit_pointer: + /* XXX: Strictly speaking for 64-bit DWARF3 files + this ought to be an 8-byte wide computation. */ + if (dwarf_version == -1) + { + printf (_("(DW_OP_GNU_implicit_pointer in frame info)")); + /* No way to tell where the next op is, so just bail. */ + return need_frame_base; + } + if (dwarf_version == 2) + { + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + } + else + { + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + } + printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", + dwarf_vmatoa ("x", uvalue), + dwarf_vmatoa ("d", read_sleb128 (data, + &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_GNU_entry_value: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_entry_value: ("); + if (decode_location_expression (data, pointer_size, offset_size, + dwarf_version, uvalue, + cu_offset, section)) + need_frame_base = 1; + putchar (')'); + data += uvalue; + break; + case DW_OP_GNU_const_type: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_const_type: <0x%s> ", + dwarf_vmatoa ("x", cu_offset + uvalue)); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + display_block (data, uvalue, end); + data += uvalue; + break; + case DW_OP_GNU_regval_type: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_regval_type: %s (%s)", + dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); + break; + case DW_OP_GNU_deref_type: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_GNU_deref_type: %ld", (long) uvalue); + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); + break; + case DW_OP_GNU_convert: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_convert <0x%s>", + dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); + break; + case DW_OP_GNU_reinterpret: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_reinterpret <0x%s>", + dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); + break; + case DW_OP_GNU_parameter_ref: + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("DW_OP_GNU_parameter_ref: <0x%s>", + dwarf_vmatoa ("x", cu_offset + uvalue)); + break; + case DW_OP_GNU_addr_index: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue)); + break; + case DW_OP_GNU_const_index: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); + break; /* HP extensions. */ case DW_OP_HP_is_value: @@ -1126,23 +1389,63 @@ decode_location_expression (unsigned char * data, return need_frame_base; } +/* Find the CU or TU set corresponding to the given CU_OFFSET. + This is used for DWARF package files. */ + +static struct cu_tu_set * +find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types) +{ + struct cu_tu_set *p; + unsigned int nsets; + unsigned int dw_sect; + + if (do_types) + { + p = tu_sets; + nsets = tu_count; + dw_sect = DW_SECT_TYPES; + } + else + { + p = cu_sets; + nsets = cu_count; + dw_sect = DW_SECT_INFO; + } + while (nsets > 0) + { + if (p->section_offsets [dw_sect] == cu_offset) + return p; + p++; + nsets--; + } + return NULL; +} + static unsigned char * read_and_display_attr_value (unsigned long attribute, unsigned long form, unsigned char * data, - unsigned long cu_offset, - unsigned long pointer_size, - unsigned long offset_size, + unsigned char * end, + dwarf_vma cu_offset, + dwarf_vma pointer_size, + dwarf_vma offset_size, int dwarf_version, debug_info * debug_info_p, int do_loc, - struct dwarf_section * section) + struct dwarf_section * section, + struct cu_tu_set * this_set) { - unsigned long uvalue = 0; + dwarf_vma uvalue = 0; unsigned char *block_start = NULL; unsigned char * orig_data = data; unsigned int bytes_read; + if (data == end) + { + warn (_("corrupt attribute\n")); + return data; + } + switch (form) { default: @@ -1150,77 +1453,87 @@ read_and_display_attr_value (unsigned long attribute, case DW_FORM_ref_addr: if (dwarf_version == 2) - { - uvalue = byte_get (data, pointer_size); - data += pointer_size; - } - else if (dwarf_version == 3) - { - uvalue = byte_get (data, offset_size); - data += offset_size; - } + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + else if (dwarf_version == 3 || dwarf_version == 4) + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); else - { - error (_("Internal error: DWARF version is not 2 or 3.\n")); - } + error (_("Internal error: DWARF version is not 2, 3 or 4.\n")); + break; case DW_FORM_addr: - uvalue = byte_get (data, pointer_size); - data += pointer_size; + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); break; case DW_FORM_strp: - uvalue = byte_get (data, offset_size); - data += offset_size; + case DW_FORM_sec_offset: + case DW_FORM_GNU_ref_alt: + case DW_FORM_GNU_strp_alt: + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + break; + + case DW_FORM_flag_present: + uvalue = 1; break; case DW_FORM_ref1: case DW_FORM_flag: case DW_FORM_data1: - uvalue = byte_get (data++, 1); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); break; case DW_FORM_ref2: case DW_FORM_data2: - uvalue = byte_get (data, 2); - data += 2; + SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); break; case DW_FORM_ref4: case DW_FORM_data4: - uvalue = byte_get (data, 4); - data += 4; + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); break; case DW_FORM_sdata: - uvalue = read_leb128 (data, & bytes_read, 1); + uvalue = read_sleb128 (data, & bytes_read, end); + data += bytes_read; + break; + + case DW_FORM_GNU_str_index: + uvalue = read_uleb128 (data, & bytes_read, end); data += bytes_read; break; case DW_FORM_ref_udata: case DW_FORM_udata: - uvalue = read_leb128 (data, & bytes_read, 0); + uvalue = read_uleb128 (data, & bytes_read, end); data += bytes_read; break; case DW_FORM_indirect: - form = read_leb128 (data, & bytes_read, 0); + form = read_uleb128 (data, & bytes_read, end); data += bytes_read; if (!do_loc) printf (" %s", get_FORM_name (form)); - return read_and_display_attr_value (attribute, form, data, + return read_and_display_attr_value (attribute, form, data, end, cu_offset, pointer_size, offset_size, dwarf_version, debug_info_p, do_loc, - section); + section, this_set); + case DW_FORM_GNU_addr_index: + uvalue = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + break; } switch (form) { case DW_FORM_ref_addr: if (!do_loc) - printf (" <0x%lx>", uvalue); + printf (" <0x%s>", dwarf_vmatoa ("x",uvalue)); + break; + + case DW_FORM_GNU_ref_alt: + if (!do_loc) + printf (" ", dwarf_vmatoa ("x",uvalue)); break; case DW_FORM_ref1: @@ -1228,89 +1541,117 @@ read_and_display_attr_value (unsigned long attribute, case DW_FORM_ref4: case DW_FORM_ref_udata: if (!do_loc) - printf (" <0x%lx>", uvalue + cu_offset); + printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset)); break; case DW_FORM_data4: case DW_FORM_addr: + case DW_FORM_sec_offset: if (!do_loc) - printf (" 0x%lx", uvalue); + printf (" 0x%s", dwarf_vmatoa ("x", uvalue)); break; + case DW_FORM_flag_present: case DW_FORM_flag: case DW_FORM_data1: case DW_FORM_data2: case DW_FORM_sdata: case DW_FORM_udata: if (!do_loc) - printf (" %ld", uvalue); + printf (" %s", dwarf_vmatoa ("d", uvalue)); break; case DW_FORM_ref8: case DW_FORM_data8: if (!do_loc) { - uvalue = byte_get (data, 4); - printf (" 0x%lx", uvalue); - printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4)); + dwarf_vma high_bits; + char buf[64]; + + SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); + + printf (" 0x%s", + dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); } + if ((do_loc || do_debug_loc || do_debug_ranges) && num_debug_info_entries == 0) { if (sizeof (uvalue) == 8) - uvalue = byte_get (data, 8); + SAFE_BYTE_GET (uvalue, data, 8, end); else - error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n")); + error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n")); } + data += 8; break; case DW_FORM_string: if (!do_loc) - printf (" %s", data); - data += strlen ((char *) data) + 1; + printf (" %.*s", (int) (end - data), data); + data += strnlen ((char *) data, end - data) + 1; break; case DW_FORM_block: - uvalue = read_leb128 (data, & bytes_read, 0); + case DW_FORM_exprloc: + uvalue = read_uleb128 (data, & bytes_read, end); block_start = data + bytes_read; if (do_loc) data = block_start + uvalue; else - data = display_block (block_start, uvalue); + data = display_block (block_start, uvalue, end); break; case DW_FORM_block1: - uvalue = byte_get (data, 1); + SAFE_BYTE_GET (uvalue, data, 1, end); block_start = data + 1; if (do_loc) data = block_start + uvalue; else - data = display_block (block_start, uvalue); + data = display_block (block_start, uvalue, end); break; case DW_FORM_block2: - uvalue = byte_get (data, 2); + SAFE_BYTE_GET (uvalue, data, 2, end); block_start = data + 2; if (do_loc) data = block_start + uvalue; else - data = display_block (block_start, uvalue); + data = display_block (block_start, uvalue, end); break; case DW_FORM_block4: - uvalue = byte_get (data, 4); + SAFE_BYTE_GET (uvalue, data, 4, end); block_start = data + 4; if (do_loc) data = block_start + uvalue; else - data = display_block (block_start, uvalue); + data = display_block (block_start, uvalue, end); break; case DW_FORM_strp: if (!do_loc) - printf (_(" (indirect string, offset: 0x%lx): %s"), - uvalue, fetch_indirect_string (uvalue)); + printf (_(" (indirect string, offset: 0x%s): %s"), + dwarf_vmatoa ("x", uvalue), + fetch_indirect_string (uvalue)); + break; + + case DW_FORM_GNU_str_index: + if (!do_loc) + { + const char *suffix = strrchr (section->name, '.'); + int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0; + + printf (_(" (indexed string: 0x%s): %s"), + dwarf_vmatoa ("x", uvalue), + fetch_indexed_string (uvalue, this_set, offset_size, dwo)); + } + break; + + case DW_FORM_GNU_strp_alt: + if (!do_loc) + printf (_(" (alt indirect string, offset: 0x%s)"), + dwarf_vmatoa ("x", uvalue)); break; case DW_FORM_indirect: @@ -1320,16 +1661,21 @@ read_and_display_attr_value (unsigned long attribute, case DW_FORM_ref_sig8: if (!do_loc) { - int i; - printf (" signature: "); - for (i = 0; i < 8; i++) - { - printf ("%02x", (unsigned) byte_get (data, 1)); - data += 1; - } + dwarf_vma high_bits; + char buf[64]; + + SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); + printf (" signature: 0x%s", + dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); } - else - data += 8; + data += 8; + break; + + case DW_FORM_GNU_addr_index: + if (!do_loc) + printf (_(" (addr_index: 0x%s): %s"), + dwarf_vmatoa ("x", uvalue), + fetch_indexed_value (uvalue * pointer_size, pointer_size)); break; default: @@ -1338,7 +1684,8 @@ read_and_display_attr_value (unsigned long attribute, } if ((do_loc || do_debug_loc || do_debug_ranges) - && num_debug_info_entries == 0) + && num_debug_info_entries == 0 + && debug_info_p != NULL) { switch (attribute) { @@ -1352,7 +1699,13 @@ read_and_display_attr_value (unsigned long attribute, case DW_AT_segment: case DW_AT_static_link: case DW_AT_use_location: - if (form == DW_FORM_data4 || form == DW_FORM_data8) + case DW_AT_GNU_call_site_value: + case DW_AT_GNU_call_site_data_value: + case DW_AT_GNU_call_site_target: + case DW_AT_GNU_call_site_target_clobbered: + if ((dwarf_version < 4 + && (form == DW_FORM_data4 || form == DW_FORM_data8)) + || form == DW_FORM_sec_offset) { /* Process location list. */ unsigned int lmax = debug_info_p->max_loc_offsets; @@ -1361,7 +1714,7 @@ read_and_display_attr_value (unsigned long attribute, if (lmax == 0 || num >= lmax) { lmax += 1024; - debug_info_p->loc_offsets = (long unsigned int *) + debug_info_p->loc_offsets = (dwarf_vma *) xcrealloc (debug_info_p->loc_offsets, lmax, sizeof (*debug_info_p->loc_offsets)); debug_info_p->have_frame_base = (int *) @@ -1369,6 +1722,8 @@ read_and_display_attr_value (unsigned long attribute, lmax, sizeof (*debug_info_p->have_frame_base)); debug_info_p->max_loc_offsets = lmax; } + if (this_set != NULL) + uvalue += this_set->section_offsets [DW_SECT_LOC]; debug_info_p->loc_offsets [num] = uvalue; debug_info_p->have_frame_base [num] = have_frame_base; debug_info_p->num_loc_offsets++; @@ -1380,8 +1735,18 @@ read_and_display_attr_value (unsigned long attribute, debug_info_p->base_address = uvalue; break; + case DW_AT_GNU_addr_base: + debug_info_p->addr_base = uvalue; + break; + + case DW_AT_GNU_ranges_base: + debug_info_p->ranges_base = uvalue; + break; + case DW_AT_ranges: - if (form == DW_FORM_data4 || form == DW_FORM_data8) + if ((dwarf_version < 4 + && (form == DW_FORM_data4 || form == DW_FORM_data8)) + || form == DW_FORM_sec_offset) { /* Process range list. */ unsigned int lmax = debug_info_p->max_range_lists; @@ -1390,7 +1755,7 @@ read_and_display_attr_value (unsigned long attribute, if (lmax == 0 || num >= lmax) { lmax += 1024; - debug_info_p->range_lists = (long unsigned int *) + debug_info_p->range_lists = (dwarf_vma *) xcrealloc (debug_info_p->range_lists, lmax, sizeof (*debug_info_p->range_lists)); debug_info_p->max_range_lists = lmax; @@ -1405,7 +1770,7 @@ read_and_display_attr_value (unsigned long attribute, } } - if (do_loc) + if (do_loc || attribute == 0) return data; /* For some attributes we can display further information. */ @@ -1429,7 +1794,8 @@ read_and_display_attr_value (unsigned long attribute, printf (_("(declared as inline and inlined)")); break; default: - printf (_(" (Unknown inline attribute value: %lx)"), uvalue); + printf (_(" (Unknown inline attribute value: %s)"), + dwarf_vmatoa ("x", uvalue)); break; } break; @@ -1461,15 +1827,18 @@ read_and_display_attr_value (unsigned long attribute, case DW_LANG_D: printf ("(D)"); break; /* DWARF 4 values. */ case DW_LANG_Python: printf ("(Python)"); break; + /* DWARF 5 values. */ + case DW_LANG_Go: printf ("(Go)"); break; /* MIPS extension. */ case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; /* UPC extension. */ case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; default: if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) - printf ("(implementation defined: %lx)", uvalue); + printf (_("(implementation defined: %s)"), + dwarf_vmatoa ("x", uvalue)); else - printf ("(Unknown: %lx)", uvalue); + printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue)); break; } break; @@ -1507,9 +1876,9 @@ read_and_display_attr_value (unsigned long attribute, default: if (uvalue >= DW_ATE_lo_user && uvalue <= DW_ATE_hi_user) - printf ("(user defined type)"); + printf (_("(user defined type)")); else - printf ("(unknown type)"); + printf (_("(unknown type)")); break; } break; @@ -1521,7 +1890,7 @@ read_and_display_attr_value (unsigned long attribute, case DW_ACCESS_protected: printf ("(protected)"); break; case DW_ACCESS_private: printf ("(private)"); break; default: - printf ("(unknown accessibility)"); + printf (_("(unknown accessibility)")); break; } break; @@ -1532,7 +1901,7 @@ read_and_display_attr_value (unsigned long attribute, case DW_VIS_local: printf ("(local)"); break; case DW_VIS_exported: printf ("(exported)"); break; case DW_VIS_qualified: printf ("(qualified)"); break; - default: printf ("(unknown visibility)"); break; + default: printf (_("(unknown visibility)")); break; } break; @@ -1542,7 +1911,7 @@ read_and_display_attr_value (unsigned long attribute, case DW_VIRTUALITY_none: printf ("(none)"); break; case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; - default: printf ("(unknown virtuality)"); break; + default: printf (_("(unknown virtuality)")); break; } break; @@ -1553,7 +1922,7 @@ read_and_display_attr_value (unsigned long attribute, case DW_ID_up_case: printf ("(up_case)"); break; case DW_ID_down_case: printf ("(down_case)"); break; case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; - default: printf ("(unknown case)"); break; + default: printf (_("(unknown case)")); break; } break; @@ -1566,16 +1935,16 @@ read_and_display_attr_value (unsigned long attribute, default: if (uvalue >= DW_CC_lo_user && uvalue <= DW_CC_hi_user) - printf ("(user defined)"); + printf (_("(user defined)")); else - printf ("(unknown convention)"); + printf (_("(unknown convention)")); } break; case DW_AT_ordering: switch (uvalue) { - case -1: printf ("(undefined)"); break; + case -1: printf (_("(undefined)")); break; case 0: printf ("(row major)"); break; case 1: printf ("(column major)"); break; } @@ -1591,7 +1960,13 @@ read_and_display_attr_value (unsigned long attribute, case DW_AT_segment: case DW_AT_static_link: case DW_AT_use_location: - if (form == DW_FORM_data4 || form == DW_FORM_data8) + case DW_AT_GNU_call_site_value: + case DW_AT_GNU_call_site_data_value: + case DW_AT_GNU_call_site_target: + case DW_AT_GNU_call_site_target_clobbered: + if ((dwarf_version < 4 + && (form == DW_FORM_data4 || form == DW_FORM_data8)) + || form == DW_FORM_sec_offset) printf (_("(location list)")); /* Fall through. */ case DW_AT_allocated: @@ -1607,6 +1982,8 @@ read_and_display_attr_value (unsigned long attribute, printf ("("); need_frame_base = decode_location_expression (block_start, pointer_size, + offset_size, + dwarf_version, uvalue, cu_offset, section); printf (")"); @@ -1617,30 +1994,39 @@ read_and_display_attr_value (unsigned long attribute, case DW_AT_import: { - if (form == DW_FORM_ref_sig8) + if (form == DW_FORM_ref_sig8 + || form == DW_FORM_GNU_ref_alt) break; if (form == DW_FORM_ref1 || form == DW_FORM_ref2 - || form == DW_FORM_ref4) + || form == DW_FORM_ref4 + || form == DW_FORM_ref_udata) uvalue += cu_offset; if (uvalue >= section->size) - warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), - uvalue, (unsigned long) (orig_data - section->start)); + warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), + dwarf_vmatoa ("x", uvalue), + (unsigned long) (orig_data - section->start)); else { unsigned long abbrev_number; abbrev_entry * entry; - abbrev_number = read_leb128 (section->start + uvalue, NULL, 0); + abbrev_number = read_uleb128 (section->start + uvalue, NULL, end); - printf ("[Abbrev Number: %ld", abbrev_number); - for (entry = first_abbrev; entry != NULL; entry = entry->next) - if (entry->entry == abbrev_number) - break; - if (entry != NULL) - printf (" (%s)", get_TAG_name (entry->tag)); + printf (_("[Abbrev Number: %ld"), abbrev_number); + /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will + use different abbrev table, and we don't track .debug_info chunks + yet. */ + if (form != DW_FORM_ref_addr) + { + for (entry = first_abbrev; entry != NULL; entry = entry->next) + if (entry->entry == abbrev_number) + break; + if (entry != NULL) + printf (" (%s)", get_TAG_name (entry->tag)); + } printf ("]"); } } @@ -1653,201 +2039,57 @@ read_and_display_attr_value (unsigned long attribute, return data; } -static char * +static const char * get_AT_name (unsigned long attribute) { - switch (attribute) - { - case DW_AT_sibling: return "DW_AT_sibling"; - case DW_AT_location: return "DW_AT_location"; - case DW_AT_name: return "DW_AT_name"; - case DW_AT_ordering: return "DW_AT_ordering"; - case DW_AT_subscr_data: return "DW_AT_subscr_data"; - case DW_AT_byte_size: return "DW_AT_byte_size"; - case DW_AT_bit_offset: return "DW_AT_bit_offset"; - case DW_AT_bit_size: return "DW_AT_bit_size"; - case DW_AT_element_list: return "DW_AT_element_list"; - case DW_AT_stmt_list: return "DW_AT_stmt_list"; - case DW_AT_low_pc: return "DW_AT_low_pc"; - case DW_AT_high_pc: return "DW_AT_high_pc"; - case DW_AT_language: return "DW_AT_language"; - case DW_AT_member: return "DW_AT_member"; - case DW_AT_discr: return "DW_AT_discr"; - case DW_AT_discr_value: return "DW_AT_discr_value"; - case DW_AT_visibility: return "DW_AT_visibility"; - case DW_AT_import: return "DW_AT_import"; - case DW_AT_string_length: return "DW_AT_string_length"; - case DW_AT_common_reference: return "DW_AT_common_reference"; - case DW_AT_comp_dir: return "DW_AT_comp_dir"; - case DW_AT_const_value: return "DW_AT_const_value"; - case DW_AT_containing_type: return "DW_AT_containing_type"; - case DW_AT_default_value: return "DW_AT_default_value"; - case DW_AT_inline: return "DW_AT_inline"; - case DW_AT_is_optional: return "DW_AT_is_optional"; - case DW_AT_lower_bound: return "DW_AT_lower_bound"; - case DW_AT_producer: return "DW_AT_producer"; - case DW_AT_prototyped: return "DW_AT_prototyped"; - case DW_AT_return_addr: return "DW_AT_return_addr"; - case DW_AT_start_scope: return "DW_AT_start_scope"; - case DW_AT_stride_size: return "DW_AT_stride_size"; - case DW_AT_upper_bound: return "DW_AT_upper_bound"; - case DW_AT_abstract_origin: return "DW_AT_abstract_origin"; - case DW_AT_accessibility: return "DW_AT_accessibility"; - case DW_AT_address_class: return "DW_AT_address_class"; - case DW_AT_artificial: return "DW_AT_artificial"; - case DW_AT_base_types: return "DW_AT_base_types"; - case DW_AT_calling_convention: return "DW_AT_calling_convention"; - case DW_AT_count: return "DW_AT_count"; - case DW_AT_data_member_location: return "DW_AT_data_member_location"; - case DW_AT_decl_column: return "DW_AT_decl_column"; - case DW_AT_decl_file: return "DW_AT_decl_file"; - case DW_AT_decl_line: return "DW_AT_decl_line"; - case DW_AT_declaration: return "DW_AT_declaration"; - case DW_AT_discr_list: return "DW_AT_discr_list"; - case DW_AT_encoding: return "DW_AT_encoding"; - case DW_AT_external: return "DW_AT_external"; - case DW_AT_frame_base: return "DW_AT_frame_base"; - case DW_AT_friend: return "DW_AT_friend"; - case DW_AT_identifier_case: return "DW_AT_identifier_case"; - case DW_AT_macro_info: return "DW_AT_macro_info"; - case DW_AT_namelist_items: return "DW_AT_namelist_items"; - case DW_AT_priority: return "DW_AT_priority"; - case DW_AT_segment: return "DW_AT_segment"; - case DW_AT_specification: return "DW_AT_specification"; - case DW_AT_static_link: return "DW_AT_static_link"; - case DW_AT_type: return "DW_AT_type"; - case DW_AT_use_location: return "DW_AT_use_location"; - case DW_AT_variable_parameter: return "DW_AT_variable_parameter"; - case DW_AT_virtuality: return "DW_AT_virtuality"; - case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location"; - /* DWARF 2.1 values. */ - case DW_AT_allocated: return "DW_AT_allocated"; - case DW_AT_associated: return "DW_AT_associated"; - case DW_AT_data_location: return "DW_AT_data_location"; - case DW_AT_stride: return "DW_AT_stride"; - case DW_AT_entry_pc: return "DW_AT_entry_pc"; - case DW_AT_use_UTF8: return "DW_AT_use_UTF8"; - case DW_AT_extension: return "DW_AT_extension"; - case DW_AT_ranges: return "DW_AT_ranges"; - case DW_AT_trampoline: return "DW_AT_trampoline"; - case DW_AT_call_column: return "DW_AT_call_column"; - case DW_AT_call_file: return "DW_AT_call_file"; - case DW_AT_call_line: return "DW_AT_call_line"; - case DW_AT_description: return "DW_AT_description"; - case DW_AT_binary_scale: return "DW_AT_binary_scale"; - case DW_AT_decimal_scale: return "DW_AT_decimal_scale"; - case DW_AT_small: return "DW_AT_small"; - case DW_AT_decimal_sign: return "DW_AT_decimal_sign"; - case DW_AT_digit_count: return "DW_AT_digit_count"; - case DW_AT_picture_string: return "DW_AT_picture_string"; - case DW_AT_mutable: return "DW_AT_mutable"; - case DW_AT_threads_scaled: return "DW_AT_threads_scaled"; - case DW_AT_explicit: return "DW_AT_explicit"; - case DW_AT_object_pointer: return "DW_AT_object_pointer"; - case DW_AT_endianity: return "DW_AT_endianity"; - case DW_AT_elemental: return "DW_AT_elemental"; - case DW_AT_pure: return "DW_AT_pure"; - case DW_AT_recursive: return "DW_AT_recursive"; - /* DWARF 4 values. */ - case DW_AT_signature: return "DW_AT_signature"; - case DW_AT_main_subprogram: return "DW_AT_main_subprogram"; - case DW_AT_data_bit_offset: return "DW_AT_data_bit_offset"; - case DW_AT_const_expr: return "DW_AT_const_expr"; - case DW_AT_enum_class: return "DW_AT_enum_class"; - case DW_AT_linkage_name: return "DW_AT_linkage_name"; - - /* HP and SGI/MIPS extensions. */ - case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin"; - case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin"; - case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin"; - case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor"; - case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth"; - case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name"; - case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride"; - case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name"; - case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin"; - case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines"; - - /* HP Extensions. */ - case DW_AT_HP_block_index: return "DW_AT_HP_block_index"; - case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list"; - case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section"; - case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr"; - case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference"; - case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level"; - case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id"; - case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags"; - case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc"; - case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc"; - case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable"; - case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name"; - case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags"; - - /* One value is shared by the MIPS and HP extensions: */ - case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; - - /* GNU extensions. */ - case DW_AT_sf_names: return "DW_AT_sf_names"; - case DW_AT_src_info: return "DW_AT_src_info"; - case DW_AT_mac_info: return "DW_AT_mac_info"; - case DW_AT_src_coords: return "DW_AT_src_coords"; - case DW_AT_body_begin: return "DW_AT_body_begin"; - case DW_AT_body_end: return "DW_AT_body_end"; - case DW_AT_GNU_vector: return "DW_AT_GNU_vector"; - case DW_AT_GNU_guarded_by: return "DW_AT_GNU_guarded_by"; - case DW_AT_GNU_pt_guarded_by: return "DW_AT_GNU_pt_guarded_by"; - case DW_AT_GNU_guarded: return "DW_AT_GNU_guarded"; - case DW_AT_GNU_pt_guarded: return "DW_AT_GNU_pt_guarded"; - case DW_AT_GNU_locks_excluded: return "DW_AT_GNU_locks_excluded"; - case DW_AT_GNU_exclusive_locks_required: return "DW_AT_GNU_exclusive_locks_required"; - case DW_AT_GNU_shared_locks_required: return "DW_AT_GNU_shared_locks_required"; - case DW_AT_GNU_odr_signature: return "DW_AT_GNU_odr_signature"; - case DW_AT_use_GNAT_descriptive_type: return "DW_AT_use_GNAT_descriptive_type"; - case DW_AT_GNAT_descriptive_type: return "DW_AT_GNAT_descriptive_type"; - - /* UPC extension. */ - case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled"; - - /* PGI (STMicroelectronics) extensions. */ - case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase"; - case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset"; - case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride"; + const char *name; - default: - { - static char buffer[100]; + if (attribute == 0) + return "DW_AT value: 0"; - snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), - attribute); - return buffer; - } + /* One value is shared by the MIPS and HP extensions: */ + if (attribute == DW_AT_MIPS_fde) + return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; + + name = get_DW_AT_name (attribute); + + if (name == NULL) + { + static char buffer[100]; + + snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), + attribute); + return buffer; } + + return name; } static unsigned char * read_and_display_attr (unsigned long attribute, unsigned long form, unsigned char * data, - unsigned long cu_offset, - unsigned long pointer_size, - unsigned long offset_size, + unsigned char * end, + dwarf_vma cu_offset, + dwarf_vma pointer_size, + dwarf_vma offset_size, int dwarf_version, debug_info * debug_info_p, int do_loc, - struct dwarf_section * section) + struct dwarf_section * section, + struct cu_tu_set * this_set) { if (!do_loc) printf (" %-18s:", get_AT_name (attribute)); - data = read_and_display_attr_value (attribute, form, data, cu_offset, - pointer_size, offset_size, + data = read_and_display_attr_value (attribute, form, data, end, + cu_offset, pointer_size, offset_size, dwarf_version, debug_info_p, - do_loc, section); + do_loc, section, this_set); if (!do_loc) printf ("\n"); return data; } - /* Process the contents of a .debug_info section. If do_loc is non-zero then we are scanning for location lists and we do not want to display anything to the user. If do_types is non-zero, we are processing @@ -1856,6 +2098,7 @@ read_and_display_attr (unsigned long attribute, static int process_debug_info (struct dwarf_section *section, void *file, + enum dwarf_section_display_enum abbrev_sec, int do_loc, int do_types) { @@ -1869,7 +2112,7 @@ process_debug_info (struct dwarf_section *section, && num_debug_info_entries == 0 && ! do_types) { - unsigned long length; + dwarf_vma length; /* First scan the section to get the number of comp units. */ for (section_begin = start, num_units = 0; section_begin < end; @@ -1878,16 +2121,17 @@ process_debug_info (struct dwarf_section *section, /* Read the first 4 bytes. For a 32-bit DWARF section, this will be the length. For a 64-bit DWARF section, it'll be the escape code 0xffffffff followed by an 8 byte length. */ - length = byte_get (section_begin, 4); + SAFE_BYTE_GET (length, section_begin, 4, end); if (length == 0xffffffff) { - length = byte_get (section_begin + 4, 8); + SAFE_BYTE_GET (length, section_begin + 4, 8, end); section_begin += length + 12; } else if (length >= 0xfffffff0 && length < 0xffffffff) { - warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name); + warn (_("Reserved length value (0x%s) found in section %s\n"), + dwarf_vmatoa ("x", length), section->name); return 0; } else @@ -1898,7 +2142,8 @@ process_debug_info (struct dwarf_section *section, relocations to an object file. */ if ((signed long) length <= 0) { - warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name); + warn (_("Corrupt unit length (0x%s) found in section %s\n"), + dwarf_vmatoa ("x", length), section->name); return 0; } } @@ -1922,16 +2167,21 @@ process_debug_info (struct dwarf_section *section, if (!do_loc) { - printf (_("Contents of the %s section:\n\n"), section->name); + if (dwarf_start_die == 0) + printf (_("Contents of the %s section:\n\n"), section->name); load_debug_section (str, file); + load_debug_section (str_dwo, file); + load_debug_section (str_index, file); + load_debug_section (str_index_dwo, file); + load_debug_section (debug_addr, file); } - load_debug_section (abbrev, file); - if (debug_displays [abbrev].section.start == NULL) + load_debug_section (abbrev_sec, file); + if (debug_displays [abbrev_sec].section.start == NULL) { warn (_("Unable to locate %s section!\n"), - debug_displays [abbrev].section.name); + debug_displays [abbrev_sec].section.name); return 0; } @@ -1939,24 +2189,25 @@ process_debug_info (struct dwarf_section *section, { DWARF2_Internal_CompUnit compunit; unsigned char *hdrptr; - unsigned char *cu_abbrev_offset_ptr; unsigned char *tags; - int level; - unsigned long cu_offset; + int level, last_level, saved_level; + dwarf_vma cu_offset; int offset_size; int initial_length_size; - unsigned char signature[8]; - unsigned long type_offset = 0; + dwarf_vma signature_high = 0; + dwarf_vma signature_low = 0; + dwarf_vma type_offset = 0; + struct cu_tu_set *this_set; + dwarf_vma abbrev_base; + size_t abbrev_size; hdrptr = start; - compunit.cu_length = byte_get (hdrptr, 4); - hdrptr += 4; + SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end); if (compunit.cu_length == 0xffffffff) { - compunit.cu_length = byte_get (hdrptr, 8); - hdrptr += 8; + SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end); offset_size = 8; initial_length_size = 12; } @@ -1966,30 +2217,32 @@ process_debug_info (struct dwarf_section *section, initial_length_size = 4; } - compunit.cu_version = byte_get (hdrptr, 2); - hdrptr += 2; + SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end); cu_offset = start - section_begin; - cu_abbrev_offset_ptr = hdrptr; - compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); - hdrptr += offset_size; - - compunit.cu_pointer_size = byte_get (hdrptr, 1); - hdrptr += 1; + this_set = find_cu_tu_set_v2 (cu_offset, do_types); - if (do_types) - { - int i; + SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end); - for (i = 0; i < 8; i++) - { - signature[i] = byte_get (hdrptr, 1); - hdrptr += 1; - } + if (this_set == NULL) + { + abbrev_base = 0; + abbrev_size = debug_displays [abbrev_sec].section.size; + } + else + { + abbrev_base = this_set->section_offsets [DW_SECT_ABBREV]; + abbrev_size = this_set->section_sizes [DW_SECT_ABBREV]; + } + + SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end); - type_offset = byte_get (hdrptr, offset_size); - hdrptr += offset_size; + if (do_types) + { + SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end); + hdrptr += 8; + SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end); } if ((do_loc || do_debug_loc || do_debug_ranges) @@ -1999,7 +2252,11 @@ process_debug_info (struct dwarf_section *section, debug_information [unit].cu_offset = cu_offset; debug_information [unit].pointer_size = compunit.cu_pointer_size; + debug_information [unit].offset_size = offset_size; + debug_information [unit].dwarf_version = compunit.cu_version; debug_information [unit].base_address = 0; + debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE; + debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE; debug_information [unit].loc_offsets = NULL; debug_information [unit].have_frame_base = NULL; debug_information [unit].max_loc_offsets = 0; @@ -2009,39 +2266,67 @@ process_debug_info (struct dwarf_section *section, debug_information [unit].num_range_lists = 0; } - if (!do_loc) + if (!do_loc && dwarf_start_die == 0) { - printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset); - printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length, - initial_length_size == 8 ? "64-bit" : "32-bit"); + printf (_(" Compilation Unit @ offset 0x%s:\n"), + dwarf_vmatoa ("x", cu_offset)); + printf (_(" Length: 0x%s (%s)\n"), + dwarf_vmatoa ("x", compunit.cu_length), + offset_size == 8 ? "64-bit" : "32-bit"); printf (_(" Version: %d\n"), compunit.cu_version); - printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset); + printf (_(" Abbrev Offset: 0x%s\n"), + dwarf_vmatoa ("x", compunit.cu_abbrev_offset)); printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); if (do_types) { - int i; - printf (_(" Signature: ")); - for (i = 0; i < 8; i++) - printf ("%02x", signature[i]); - printf ("\n"); - printf (_(" Type Offset: 0x%lx\n"), type_offset); + char buf[64]; + + printf (_(" Signature: 0x%s\n"), + dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + printf (_(" Type Offset: 0x%s\n"), + dwarf_vmatoa ("x", type_offset)); + } + if (this_set != NULL) + { + dwarf_vma *offsets = this_set->section_offsets; + size_t *sizes = this_set->section_sizes; + + printf (_(" Section contributions:\n")); + printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]), + dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV])); + printf (_(" .debug_line.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_LINE]), + dwarf_vmatoa ("x", sizes [DW_SECT_LINE])); + printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_LOC]), + dwarf_vmatoa ("x", sizes [DW_SECT_LOC])); + printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]), + dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS])); } } if (cu_offset + compunit.cu_length + initial_length_size > section->size) { - warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"), - cu_offset, compunit.cu_length); + warn (_("Debug info is corrupted, length of CU at %s" + " extends beyond end of section (length = %s)\n"), + dwarf_vmatoa ("x", cu_offset), + dwarf_vmatoa ("x", compunit.cu_length)); break; } tags = hdrptr; start += compunit.cu_length + initial_length_size; - if (compunit.cu_version != 2 && compunit.cu_version != 3) + if (compunit.cu_version != 2 + && compunit.cu_version != 3 + && compunit.cu_version != 4) { - warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"), - cu_offset, compunit.cu_version); + warn (_("CU at offset %s contains corrupt or " + "unsupported version number: %d.\n"), + dwarf_vmatoa ("x", cu_offset), compunit.cu_version); continue; } @@ -2049,18 +2334,20 @@ process_debug_info (struct dwarf_section *section, /* Process the abbrevs used by this compilation unit. DWARF sections under Mach-O have non-zero addresses. */ - if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size) + if (compunit.cu_abbrev_offset >= abbrev_size) warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), (unsigned long) compunit.cu_abbrev_offset, - (unsigned long) debug_displays [abbrev].section.size); + (unsigned long) abbrev_size); else process_abbrev_section - ((unsigned char *) debug_displays [abbrev].section.start - + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address, - (unsigned char *) debug_displays [abbrev].section.start - + debug_displays [abbrev].section.size); + (((unsigned char *) debug_displays [abbrev_sec].section.start + + abbrev_base + compunit.cu_abbrev_offset), + ((unsigned char *) debug_displays [abbrev_sec].section.start + + abbrev_base + abbrev_size)); level = 0; + last_level = level; + saved_level = -1; while (tags < start) { unsigned int bytes_read; @@ -2068,10 +2355,11 @@ process_debug_info (struct dwarf_section *section, unsigned long die_offset; abbrev_entry *entry; abbrev_attr *attr; + int do_printing = 1; die_offset = tags - section_begin; - abbrev_number = read_leb128 (tags, & bytes_read, 0); + abbrev_number = read_uleb128 (tags, & bytes_read, start); tags += bytes_read; /* A null DIE marks the end of a list of siblings or it may also be @@ -2090,6 +2378,12 @@ process_debug_info (struct dwarf_section *section, break; } + if (!do_loc && die_offset >= dwarf_start_die + && (dwarf_cutoff_level == -1 + || level < dwarf_cutoff_level)) + printf (_(" <%d><%lx>: Abbrev Number: 0\n"), + level, die_offset); + --level; if (level < 0) { @@ -2097,19 +2391,37 @@ process_debug_info (struct dwarf_section *section, if (num_bogus_warns < 3) { - warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"), - die_offset); + warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"), + die_offset, section->name); num_bogus_warns ++; if (num_bogus_warns == 3) warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); } } + if (dwarf_start_die != 0 && level < saved_level) + return 1; continue; } if (!do_loc) - printf (_(" <%d><%lx>: Abbrev Number: %lu"), - level, die_offset, abbrev_number); + { + if (dwarf_start_die != 0 && die_offset < dwarf_start_die) + do_printing = 0; + else + { + if (dwarf_start_die != 0 && die_offset == dwarf_start_die) + saved_level = level; + do_printing = (dwarf_cutoff_level == -1 + || level < dwarf_cutoff_level); + if (do_printing) + printf (_(" <%d><%lx>: Abbrev Number: %lu"), + level, die_offset, abbrev_number); + else if (dwarf_cutoff_level == -1 + || last_level < dwarf_cutoff_level) + printf (_(" <%d><%lx>: ...\n"), level, die_offset); + last_level = level; + } + } /* Scan through the abbreviation list until we reach the correct entry. */ @@ -2120,7 +2432,7 @@ process_debug_info (struct dwarf_section *section, if (entry == NULL) { - if (!do_loc) + if (!do_loc && do_printing) { printf ("\n"); fflush (stdout); @@ -2130,8 +2442,8 @@ process_debug_info (struct dwarf_section *section, return 0; } - if (!do_loc) - printf (_(" (%s)\n"), get_TAG_name (entry->tag)); + if (!do_loc && do_printing) + printf (" (%s)\n", get_TAG_name (entry->tag)); switch (entry->tag) { @@ -2149,20 +2461,32 @@ process_debug_info (struct dwarf_section *section, break; } - for (attr = entry->first_attr; attr; attr = attr->next) + for (attr = entry->first_attr; + attr && attr->attribute; + attr = attr->next) { - if (! do_loc) + debug_info *arg; + + if (! do_loc && do_printing) /* Show the offset from where the tag was extracted. */ - printf (" <%2lx>", (unsigned long)(tags - section_begin)); + printf (" <%lx>", (unsigned long)(tags - section_begin)); + + arg = debug_information; + if (debug_information) + arg += unit; tags = read_and_display_attr (attr->attribute, attr->form, - tags, cu_offset, + tags, + end, + cu_offset, compunit.cu_pointer_size, offset_size, compunit.cu_version, - debug_information + unit, - do_loc, section); + arg, + do_loc || ! do_printing, + section, + this_set); } if (entry->children) @@ -2178,9 +2502,7 @@ process_debug_info (struct dwarf_section *section, num_debug_info_entries = num_units; if (!do_loc) - { - printf ("\n"); - } + printf ("\n"); return 1; } @@ -2200,7 +2522,7 @@ load_debug_info (void * file) warned_about_missing_comp_units = FALSE; /* If we have already tried and failed to load the .debug_info - section then do not bother to repear the task. */ + section then do not bother to repeat the task. */ if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) return 0; @@ -2208,47 +2530,48 @@ load_debug_info (void * file) if (num_debug_info_entries > 0) return num_debug_info_entries; + /* If this is a DWARF package file, load the CU and TU indexes. */ + load_cu_tu_indexes (file); + if (load_debug_section (info, file) - && process_debug_info (&debug_displays [info].section, file, 1, 0)) + && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) + return num_debug_info_entries; + else if (load_debug_section (info_dwo, file) + && process_debug_info (&debug_displays [info_dwo].section, file, + abbrev_dwo, 1, 0)) return num_debug_info_entries; num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; return 0; } -static int -display_debug_lines_raw (struct dwarf_section *section, - unsigned char *data, - unsigned char *end) -{ - unsigned char *start = section->start; - - printf (_("Raw dump of debug contents of section %s:\n\n"), - section->name); +/* Read a DWARF .debug_line section header starting at DATA. + Upon success returns an updated DATA pointer and the LINFO + structure and the END_OF_SEQUENCE pointer will be filled in. + Otherwise returns NULL. */ - while (data < end) - { - DWARF2_Internal_LineInfo linfo; - unsigned char *standard_opcodes; - unsigned char *end_of_sequence; - unsigned char *hdrptr; - unsigned long hdroff; - int initial_length_size; - int offset_size; - int i; +static unsigned char * +read_debug_line_header (struct dwarf_section * section, + unsigned char * data, + unsigned char * end, + DWARF2_Internal_LineInfo * linfo, + unsigned char ** end_of_sequence) +{ + unsigned char *hdrptr; + unsigned int offset_size; + unsigned int initial_length_size; + /* Extract information from the Line Number Program Header. + (section 6.2.4 in the Dwarf3 doc). */ hdrptr = data; - hdroff = hdrptr - start; - /* Check the length of the block. */ - linfo.li_length = byte_get (hdrptr, 4); - hdrptr += 4; + /* Get and check the length of the block. */ + SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end); - if (linfo.li_length == 0xffffffff) + if (linfo->li_length == 0xffffffff) { /* This section is 64-bit DWARF 3. */ - linfo.li_length = byte_get (hdrptr, 8); - hdrptr += 8; + SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end); offset_size = 8; initial_length_size = 12; } @@ -2258,235 +2581,389 @@ display_debug_lines_raw (struct dwarf_section *section, initial_length_size = 4; } - if (linfo.li_length + initial_length_size > section->size) + if (linfo->li_length + initial_length_size > section->size) { - warn - (_("The information in section %s appears to be corrupt - the section is too small\n"), - section->name); - return 0; + /* If the length is just a bias against the initial_length_size then + this means that the field has a relocation against it which has not + been applied. (Ie we are dealing with an object file, not a linked + binary). Do not complain but instead assume that the rest of the + section applies to this particular header. */ + if (linfo->li_length == - initial_length_size) + { + linfo->li_length = section->size - initial_length_size; } - - /* Check its version number. */ - linfo.li_version = byte_get (hdrptr, 2); - hdrptr += 2; - if (linfo.li_version != 2 && linfo.li_version != 3) + else { - warn (_("Only DWARF version 2 and 3 line info is currently supported.\n")); - return 0; + warn (_("The line info appears to be corrupt - " + "the section is too small\n")); + return NULL; + } } - linfo.li_prologue_length = byte_get (hdrptr, offset_size); - hdrptr += offset_size; - linfo.li_min_insn_length = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_default_is_stmt = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_line_base = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_line_range = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_opcode_base = byte_get (hdrptr, 1); - hdrptr++; + /* Get and check the version number. */ + SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end); - /* Sign extend the line base field. */ - linfo.li_line_base <<= 24; - linfo.li_line_base >>= 24; + if (linfo->li_version != 2 + && linfo->li_version != 3 + && linfo->li_version != 4) + { + warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n")); + return NULL; + } - printf (_(" Offset: 0x%lx\n"), hdroff); - printf (_(" Length: %ld\n"), linfo.li_length); - printf (_(" DWARF Version: %d\n"), linfo.li_version); - printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length); - printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); - printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); - printf (_(" Line Base: %d\n"), linfo.li_line_base); - printf (_(" Line Range: %d\n"), linfo.li_line_range); - printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); + SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr, offset_size, end); + SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end); - end_of_sequence = data + linfo.li_length + initial_length_size; + if (linfo->li_version >= 4) + { + SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end); - reset_state_machine (linfo.li_default_is_stmt); + if (linfo->li_max_ops_per_insn == 0) + { + warn (_("Invalid maximum operations per insn.\n")); + return NULL; + } + } + else + linfo->li_max_ops_per_insn = 1; - /* Display the contents of the Opcodes table. */ - standard_opcodes = hdrptr; + SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end); - printf (_("\n Opcodes:\n")); + /* Sign extend the line base field. */ + linfo->li_line_base <<= 24; + linfo->li_line_base >>= 24; - for (i = 1; i < linfo.li_opcode_base; i++) - printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); + * end_of_sequence = data + linfo->li_length + initial_length_size; + return hdrptr; +} - /* Display the contents of the Directory table. */ - data = standard_opcodes + linfo.li_opcode_base - 1; +static int +display_debug_lines_raw (struct dwarf_section *section, + unsigned char *data, + unsigned char *end) +{ + unsigned char *start = section->start; - if (*data == 0) - printf (_("\n The Directory Table is empty.\n")); - else - { - printf (_("\n The Directory Table:\n")); + printf (_("Raw dump of debug contents of section %s:\n\n"), + section->name); - while (*data != 0) - { - printf (_(" %s\n"), data); + while (data < end) + { + static DWARF2_Internal_LineInfo saved_linfo; + DWARF2_Internal_LineInfo linfo; + unsigned char *standard_opcodes; + unsigned char *end_of_sequence; + unsigned int last_dir_entry = 0; + int i; - data += strlen ((char *) data) + 1; - } + if (const_strneq (section->name, ".debug_line.") + /* Note: the following does not apply to .debug_line.dwo sections. + These are full debug_line sections. */ + && strcmp (section->name, ".debug_line.dwo") != 0) + { + /* Sections named .debug_line. are fragments of a .debug_line + section containing just the Line Number Statements. They are + created by the assembler and intended to be used alongside gcc's + -ffunction-sections command line option. When the linker's + garbage collection decides to discard a .text. section it + can then also discard the line number information in .debug_line.. + + Since the section is a fragment it does not have the details + needed to fill out a LineInfo structure, so instead we use the + details from the last full debug_line section that we processed. */ + end_of_sequence = end; + standard_opcodes = NULL; + linfo = saved_linfo; + reset_state_machine (linfo.li_default_is_stmt); } - - /* Skip the NUL at the end of the table. */ - data++; - - /* Display the contents of the File Name table. */ - if (*data == 0) - printf (_("\n The File Name Table is empty.\n")); else { - printf (_("\n The File Name Table:\n")); - printf (_(" Entry\tDir\tTime\tSize\tName\n")); + unsigned char * hdrptr; - while (*data != 0) - { - unsigned char *name; - unsigned int bytes_read; + if ((hdrptr = read_debug_line_header (section, data, end, & linfo, + & end_of_sequence)) == NULL) + return 0; - printf (_(" %d\t"), ++state_machine_regs.last_file_entry); - name = data; + printf (_(" Offset: 0x%lx\n"), (long)(data - start)); + printf (_(" Length: %ld\n"), (long) linfo.li_length); + printf (_(" DWARF Version: %d\n"), linfo.li_version); + printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length); + printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); + if (linfo.li_version >= 4) + printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn); + printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); + printf (_(" Line Base: %d\n"), linfo.li_line_base); + printf (_(" Line Range: %d\n"), linfo.li_line_range); + printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); - data += strlen ((char *) data) + 1; + reset_state_machine (linfo.li_default_is_stmt); - printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); - data += bytes_read; - printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); - data += bytes_read; - printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); - data += bytes_read; - printf (_("%s\n"), name); - } - } + /* Display the contents of the Opcodes table. */ + standard_opcodes = hdrptr; - /* Skip the NUL at the end of the table. */ - data++; + printf (_("\n Opcodes:\n")); - /* Now display the statements. */ - printf (_("\n Line Number Statements:\n")); + for (i = 1; i < linfo.li_opcode_base; i++) + printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); - while (data < end_of_sequence) - { - unsigned char op_code; - int adv; - unsigned long int uladv; - unsigned int bytes_read; + /* Display the contents of the Directory table. */ + data = standard_opcodes + linfo.li_opcode_base - 1; - op_code = *data++; - - if (op_code >= linfo.li_opcode_base) - { - op_code -= linfo.li_opcode_base; - uladv = (op_code / linfo.li_line_range) * linfo.li_min_insn_length; - state_machine_regs.address += uladv; - printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"), - op_code, uladv, state_machine_regs.address); - adv = (op_code % linfo.li_line_range) + linfo.li_line_base; - state_machine_regs.line += adv; - printf (_(" and Line by %d to %d\n"), - adv, state_machine_regs.line); - } - else switch (op_code) + if (*data == 0) + printf (_("\n The Directory Table is empty.\n")); + else { - case DW_LNS_extended_op: - data += process_extended_line_op (data, linfo.li_default_is_stmt); - break; + printf (_("\n The Directory Table (offset 0x%lx):\n"), + (long)(data - start)); - case DW_LNS_copy: - printf (_(" Copy\n")); - break; + while (*data != 0) + { + printf (" %d\t%s\n", ++last_dir_entry, data); - case DW_LNS_advance_pc: - uladv = read_leb128 (data, & bytes_read, 0); - uladv *= linfo.li_min_insn_length; - data += bytes_read; - state_machine_regs.address += uladv; - printf (_(" Advance PC by %lu to 0x%lx\n"), uladv, - state_machine_regs.address); - break; + data += strnlen ((char *) data, end - data) + 1; + } + } - case DW_LNS_advance_line: - adv = read_leb128 (data, & bytes_read, 1); - data += bytes_read; - state_machine_regs.line += adv; - printf (_(" Advance Line by %d to %d\n"), adv, - state_machine_regs.line); - break; + /* Skip the NUL at the end of the table. */ + data++; - case DW_LNS_set_file: - adv = read_leb128 (data, & bytes_read, 0); - data += bytes_read; - printf (_(" Set File Name to entry %d in the File Name Table\n"), - adv); - state_machine_regs.file = adv; - break; + /* Display the contents of the File Name table. */ + if (*data == 0) + printf (_("\n The File Name Table is empty.\n")); + else + { + printf (_("\n The File Name Table (offset 0x%lx):\n"), + (long)(data - start)); + printf (_(" Entry\tDir\tTime\tSize\tName\n")); - case DW_LNS_set_column: - uladv = read_leb128 (data, & bytes_read, 0); - data += bytes_read; - printf (_(" Set column to %lu\n"), uladv); - state_machine_regs.column = uladv; - break; + while (*data != 0) + { + unsigned char *name; + unsigned int bytes_read; - case DW_LNS_negate_stmt: - adv = state_machine_regs.is_stmt; - adv = ! adv; - printf (_(" Set is_stmt to %d\n"), adv); - state_machine_regs.is_stmt = adv; - break; + printf (" %d\t", ++state_machine_regs.last_file_entry); + name = data; + data += strnlen ((char *) data, end - data) + 1; - case DW_LNS_set_basic_block: - printf (_(" Set basic block\n")); - state_machine_regs.basic_block = 1; - break; + printf ("%s\t", + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\n", name); - case DW_LNS_const_add_pc: - uladv = (((255 - linfo.li_opcode_base) / linfo.li_line_range) - * linfo.li_min_insn_length); - state_machine_regs.address += uladv; - printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv, - state_machine_regs.address); - break; + if (data == end) + { + warn (_("Corrupt file name table entry\n")); + break; + } + } + } - case DW_LNS_fixed_advance_pc: - uladv = byte_get (data, 2); - data += 2; - state_machine_regs.address += uladv; - printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"), - uladv, state_machine_regs.address); - break; + /* Skip the NUL at the end of the table. */ + data++; + putchar ('\n'); + saved_linfo = linfo; + } - case DW_LNS_set_prologue_end: - printf (_(" Set prologue_end to true\n")); - break; + /* Now display the statements. */ + if (data >= end_of_sequence) + printf (_(" No Line Number Statements.\n")); + else + { + printf (_(" Line Number Statements:\n")); - case DW_LNS_set_epilogue_begin: - printf (_(" Set epilogue_begin to true\n")); - break; + while (data < end_of_sequence) + { + unsigned char op_code; + dwarf_signed_vma adv; + dwarf_vma uladv; + unsigned int bytes_read; - case DW_LNS_set_isa: - uladv = read_leb128 (data, & bytes_read, 0); - data += bytes_read; - printf (_(" Set ISA to %lu\n"), uladv); - break; + printf (" [0x%08lx]", (long)(data - start)); - default: - printf (_(" Unknown opcode %d with operands: "), op_code); + op_code = *data++; - for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) + if (op_code >= linfo.li_opcode_base) { - printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), - i == 1 ? "" : ", "); - data += bytes_read; + op_code -= linfo.li_opcode_base; + uladv = (op_code / linfo.li_line_range); + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + printf (_(" Special opcode %d: " + "advance Address by %s to 0x%s"), + op_code, dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + printf (_(" Special opcode %d: " + "advance Address by %s to 0x%s[%d]"), + op_code, dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address), + state_machine_regs.op_index); + } + adv = (op_code % linfo.li_line_range) + linfo.li_line_base; + state_machine_regs.line += adv; + printf (_(" and Line by %s to %d\n"), + dwarf_vmatoa ("d", adv), state_machine_regs.line); } - putchar ('\n'); - break; + else switch (op_code) + { + case DW_LNS_extended_op: + data += process_extended_line_op (data, linfo.li_default_is_stmt, end); + break; + + case DW_LNS_copy: + printf (_(" Copy\n")); + break; + + case DW_LNS_advance_pc: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + printf (_(" Advance PC by %s to 0x%s\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + printf (_(" Advance PC by %s to 0x%s[%d]\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address), + state_machine_regs.op_index); + } + break; + + case DW_LNS_advance_line: + adv = read_sleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.line += adv; + printf (_(" Advance Line by %s to %d\n"), + dwarf_vmatoa ("d", adv), + state_machine_regs.line); + break; + + case DW_LNS_set_file: + adv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set File Name to entry %s in the File Name Table\n"), + dwarf_vmatoa ("d", adv)); + state_machine_regs.file = adv; + break; + + case DW_LNS_set_column: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set column to %s\n"), + dwarf_vmatoa ("u", uladv)); + state_machine_regs.column = uladv; + break; + + case DW_LNS_negate_stmt: + adv = state_machine_regs.is_stmt; + adv = ! adv; + printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv)); + state_machine_regs.is_stmt = adv; + break; + + case DW_LNS_set_basic_block: + printf (_(" Set basic block\n")); + state_machine_regs.basic_block = 1; + break; + + case DW_LNS_const_add_pc: + uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); + if (linfo.li_max_ops_per_insn) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + printf (_(" Advance PC by constant %s to 0x%s\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + printf (_(" Advance PC by constant %s to 0x%s[%d]\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address), + state_machine_regs.op_index); + } + break; + + case DW_LNS_fixed_advance_pc: + SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); + state_machine_regs.address += uladv; + state_machine_regs.op_index = 0; + printf (_(" Advance PC by fixed size amount %s to 0x%s\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + break; + + case DW_LNS_set_prologue_end: + printf (_(" Set prologue_end to true\n")); + break; + + case DW_LNS_set_epilogue_begin: + printf (_(" Set epilogue_begin to true\n")); + break; + + case DW_LNS_set_isa: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv)); + break; + + default: + printf (_(" Unknown opcode %d with operands: "), op_code); + + if (standard_opcodes != NULL) + for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) + { + printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, + &bytes_read, end)), + i == 1 ? "" : ", "); + data += bytes_read; + } + putchar ('\n'); + break; + } } + putchar ('\n'); } - putchar ('\n'); } return 1; @@ -2494,10 +2971,10 @@ display_debug_lines_raw (struct dwarf_section *section, typedef struct { - unsigned char *name; - unsigned int directory_index; - unsigned int modification_date; - unsigned int length; + unsigned char *name; + unsigned int directory_index; + unsigned int modification_date; + unsigned int length; } File_Entry; /* Output a decoded representation of the .debug_line section. */ @@ -2507,6 +2984,8 @@ display_debug_lines_decoded (struct dwarf_section *section, unsigned char *data, unsigned char *end) { + static DWARF2_Internal_LineInfo saved_linfo; + printf (_("Decoded dump of debug contents of section %s:\n\n"), section->name); @@ -2516,177 +2995,136 @@ display_debug_lines_decoded (struct dwarf_section *section, DWARF2_Internal_LineInfo linfo; unsigned char *standard_opcodes; unsigned char *end_of_sequence; - unsigned char *hdrptr; - int initial_length_size; - int offset_size; int i; File_Entry *file_table = NULL; + unsigned int n_files = 0; unsigned char **directory_table = NULL; - unsigned int prev_line = 0; + unsigned int n_directories = 0; - hdrptr = data; - - /* Extract information from the Line Number Program Header. - (section 6.2.4 in the Dwarf3 doc). */ - - /* Get the length of this CU's line number information block. */ - linfo.li_length = byte_get (hdrptr, 4); - hdrptr += 4; - - if (linfo.li_length == 0xffffffff) + if (const_strneq (section->name, ".debug_line.") + /* Note: the following does not apply to .debug_line.dwo sections. + These are full debug_line sections. */ + && strcmp (section->name, ".debug_line.dwo") != 0) { - /* This section is 64-bit DWARF 3. */ - linfo.li_length = byte_get (hdrptr, 8); - hdrptr += 8; - offset_size = 8; - initial_length_size = 12; + /* See comment in display_debug_lines_raw(). */ + end_of_sequence = end; + standard_opcodes = NULL; + linfo = saved_linfo; + reset_state_machine (linfo.li_default_is_stmt); } else { - offset_size = 4; - initial_length_size = 4; - } + unsigned char *hdrptr; - if (linfo.li_length + initial_length_size > section->size) - { - warn (_("The line info appears to be corrupt - " - "the section is too small\n")); - return 0; - } - - /* Get this CU's Line Number Block version number. */ - linfo.li_version = byte_get (hdrptr, 2); - hdrptr += 2; - if (linfo.li_version != 2 && linfo.li_version != 3) - { - warn (_("Only DWARF version 2 and 3 line info is currently " - "supported.\n")); - return 0; - } + if ((hdrptr = read_debug_line_header (section, data, end, & linfo, + & end_of_sequence)) == NULL) + return 0; - linfo.li_prologue_length = byte_get (hdrptr, offset_size); - hdrptr += offset_size; - linfo.li_min_insn_length = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_default_is_stmt = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_line_base = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_line_range = byte_get (hdrptr, 1); - hdrptr++; - linfo.li_opcode_base = byte_get (hdrptr, 1); - hdrptr++; + reset_state_machine (linfo.li_default_is_stmt); - /* Sign extend the line base field. */ - linfo.li_line_base <<= 24; - linfo.li_line_base >>= 24; + /* Save a pointer to the contents of the Opcodes table. */ + standard_opcodes = hdrptr; - /* Find the end of this CU's Line Number Information Block. */ - end_of_sequence = data + linfo.li_length + initial_length_size; + /* Traverse the Directory table just to count entries. */ + data = standard_opcodes + linfo.li_opcode_base - 1; + if (*data != 0) + { + unsigned char *ptr_directory_table = data; - reset_state_machine (linfo.li_default_is_stmt); + while (*data != 0) + { + data += strnlen ((char *) data, end - data) + 1; + n_directories++; + } - /* Save a pointer to the contents of the Opcodes table. */ - standard_opcodes = hdrptr; + /* Go through the directory table again to save the directories. */ + directory_table = (unsigned char **) + xmalloc (n_directories * sizeof (unsigned char *)); - /* Traverse the Directory table just to count entries. */ - data = standard_opcodes + linfo.li_opcode_base - 1; - if (*data != 0) - { - unsigned int n_directories = 0; - unsigned char *ptr_directory_table = data; + i = 0; + while (*ptr_directory_table != 0) + { + directory_table[i] = ptr_directory_table; + ptr_directory_table += strnlen ((char *) ptr_directory_table, + ptr_directory_table - end) + 1; + i++; + } + } + /* Skip the NUL at the end of the table. */ + data++; - while (*data != 0) + /* Traverse the File Name table just to count the entries. */ + if (*data != 0) { - data += strlen ((char *) data) + 1; - n_directories++; - } + unsigned char *ptr_file_name_table = data; - /* Go through the directory table again to save the directories. */ - directory_table = (unsigned char **) - xmalloc (n_directories * sizeof (unsigned char *)); + while (*data != 0) + { + unsigned int bytes_read; - i = 0; - while (*ptr_directory_table != 0) - { - directory_table[i] = ptr_directory_table; - ptr_directory_table += strlen ((char *) ptr_directory_table) + 1; - i++; - } - } - /* Skip the NUL at the end of the table. */ - data++; + /* Skip Name, directory index, last modification time and length + of file. */ + data += strnlen ((char *) data, end - data) + 1; + read_uleb128 (data, & bytes_read, end); + data += bytes_read; + read_uleb128 (data, & bytes_read, end); + data += bytes_read; + read_uleb128 (data, & bytes_read, end); + data += bytes_read; - /* Traverse the File Name table just to count the entries. */ - if (*data != 0) - { - unsigned int n_files = 0; - unsigned char *ptr_file_name_table = data; + n_files++; + } - while (*data != 0) - { - unsigned int bytes_read; + /* Go through the file table again to save the strings. */ + file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); - /* Skip Name, directory index, last modification time and length - of file. */ - data += strlen ((char *) data) + 1; - read_leb128 (data, & bytes_read, 0); - data += bytes_read; - read_leb128 (data, & bytes_read, 0); - data += bytes_read; - read_leb128 (data, & bytes_read, 0); - data += bytes_read; - - n_files++; - } + i = 0; + while (*ptr_file_name_table != 0) + { + unsigned int bytes_read; + + file_table[i].name = ptr_file_name_table; + ptr_file_name_table += strnlen ((char *) ptr_file_name_table, + end - ptr_file_name_table) + 1; + + /* We are not interested in directory, time or size. */ + file_table[i].directory_index = read_uleb128 (ptr_file_name_table, + & bytes_read, end); + ptr_file_name_table += bytes_read; + file_table[i].modification_date = read_uleb128 (ptr_file_name_table, + & bytes_read, end); + ptr_file_name_table += bytes_read; + file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end); + ptr_file_name_table += bytes_read; + i++; + } + i = 0; - /* Go through the file table again to save the strings. */ - file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); + /* Print the Compilation Unit's name and a header. */ + if (directory_table == NULL) + { + printf (_("CU: %s:\n"), file_table[0].name); + printf (_("File name Line number Starting address\n")); + } + else + { + unsigned int ix = file_table[0].directory_index; + const char *directory = ix ? (char *)directory_table[ix - 1] : "."; - i = 0; - while (*ptr_file_name_table != 0) - { - unsigned int bytes_read; - - file_table[i].name = ptr_file_name_table; - ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1; - - /* We are not interested in directory, time or size. */ - file_table[i].directory_index = read_leb128 (ptr_file_name_table, - & bytes_read, 0); - ptr_file_name_table += bytes_read; - file_table[i].modification_date = read_leb128 (ptr_file_name_table, - & bytes_read, 0); - ptr_file_name_table += bytes_read; - file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0); - ptr_file_name_table += bytes_read; - i++; - } - i = 0; + if (do_wide || strlen (directory) < 76) + printf (_("CU: %s/%s:\n"), directory, file_table[0].name); + else + printf ("%s:\n", file_table[0].name); - /* Print the Compilation Unit's name and a header. */ - if (directory_table == NULL) - { - printf (_("CU: %s:\n"), file_table[0].name); - printf (_("File name Line number Starting address\n")); - } - else - { - if (do_wide || strlen ((char *) directory_table[0]) < 76) - { - printf (_("CU: %s/%s:\n"), directory_table[0], - file_table[0].name); - } - else - { - printf (_("%s:\n"), file_table[0].name); - } - printf (_("File name Line number Starting address\n")); - } - } + printf (_("File name Line number Starting address\n")); + } + } - /* Skip the NUL at the end of the table. */ - data++; + /* Skip the NUL at the end of the table. */ + data++; + + saved_linfo = linfo; + } /* This loop iterates through the Dwarf Line Number Program. */ while (data < end_of_sequence) @@ -2698,155 +3136,220 @@ display_debug_lines_decoded (struct dwarf_section *section, int is_special_opcode = 0; op_code = *data++; - prev_line = state_machine_regs.line; if (op_code >= linfo.li_opcode_base) { op_code -= linfo.li_opcode_base; - uladv = (op_code / linfo.li_line_range) * linfo.li_min_insn_length; - state_machine_regs.address += uladv; + uladv = (op_code / linfo.li_line_range); + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + } adv = (op_code % linfo.li_line_range) + linfo.li_line_base; state_machine_regs.line += adv; is_special_opcode = 1; } else switch (op_code) - { - case DW_LNS_extended_op: - { - unsigned int ext_op_code_len; - unsigned char ext_op_code; - unsigned char *op_code_data = data; - - ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0); - op_code_data += bytes_read; - - if (ext_op_code_len == 0) - { - warn (_("badly formed extended line op encountered!\n")); - break; - } - ext_op_code_len += bytes_read; - ext_op_code = *op_code_data++; - - switch (ext_op_code) - { - case DW_LNE_end_sequence: - reset_state_machine (linfo.li_default_is_stmt); - break; - case DW_LNE_set_address: - state_machine_regs.address = - byte_get (op_code_data, ext_op_code_len - bytes_read - 1); - break; - case DW_LNE_define_file: - { - unsigned int dir_index = 0; - - ++state_machine_regs.last_file_entry; - op_code_data += strlen ((char *) op_code_data) + 1; - dir_index = read_leb128 (op_code_data, & bytes_read, 0); - op_code_data += bytes_read; - read_leb128 (op_code_data, & bytes_read, 0); - op_code_data += bytes_read; - read_leb128 (op_code_data, & bytes_read, 0); - - printf (_("%s:\n"), directory_table[dir_index]); - break; - } - default: - printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read); - break; - } - data += ext_op_code_len; - break; - } - case DW_LNS_copy: - break; - - case DW_LNS_advance_pc: - uladv = read_leb128 (data, & bytes_read, 0); - uladv *= linfo.li_min_insn_length; - data += bytes_read; - state_machine_regs.address += uladv; - break; - - case DW_LNS_advance_line: - adv = read_leb128 (data, & bytes_read, 1); - data += bytes_read; - state_machine_regs.line += adv; - break; - - case DW_LNS_set_file: - adv = read_leb128 (data, & bytes_read, 0); - data += bytes_read; - state_machine_regs.file = adv; - if (file_table[state_machine_regs.file - 1].directory_index == 0) - { - /* If directory index is 0, that means current directory. */ - printf (_("\n./%s:[++]\n"), - file_table[state_machine_regs.file - 1].name); - } - else - { - /* The directory index starts counting at 1. */ - printf (_("\n%s/%s:\n"), - directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], - file_table[state_machine_regs.file - 1].name); - } - break; - - case DW_LNS_set_column: - uladv = read_leb128 (data, & bytes_read, 0); - data += bytes_read; - state_machine_regs.column = uladv; - break; - - case DW_LNS_negate_stmt: - adv = state_machine_regs.is_stmt; - adv = ! adv; - state_machine_regs.is_stmt = adv; - break; - - case DW_LNS_set_basic_block: - state_machine_regs.basic_block = 1; - break; - - case DW_LNS_const_add_pc: - uladv = (((255 - linfo.li_opcode_base) / linfo.li_line_range) - * linfo.li_min_insn_length); - state_machine_regs.address += uladv; - break; - - case DW_LNS_fixed_advance_pc: - uladv = byte_get (data, 2); - data += 2; - state_machine_regs.address += uladv; - break; - - case DW_LNS_set_prologue_end: - break; - - case DW_LNS_set_epilogue_begin: - break; - - case DW_LNS_set_isa: - uladv = read_leb128 (data, & bytes_read, 0); - data += bytes_read; - printf (_(" Set ISA to %lu\n"), uladv); - break; - - default: - printf (_(" Unknown opcode %d with operands: "), op_code); - - for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) - { - printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), - i == 1 ? "" : ", "); - data += bytes_read; - } - putchar ('\n'); - break; - } + { + case DW_LNS_extended_op: + { + unsigned int ext_op_code_len; + unsigned char ext_op_code; + unsigned char *op_code_data = data; + + ext_op_code_len = read_uleb128 (op_code_data, &bytes_read, + end_of_sequence); + op_code_data += bytes_read; + + if (ext_op_code_len == 0) + { + warn (_("badly formed extended line op encountered!\n")); + break; + } + ext_op_code_len += bytes_read; + ext_op_code = *op_code_data++; + + switch (ext_op_code) + { + case DW_LNE_end_sequence: + reset_state_machine (linfo.li_default_is_stmt); + break; + case DW_LNE_set_address: + SAFE_BYTE_GET_AND_INC (state_machine_regs.address, + op_code_data, + ext_op_code_len - bytes_read - 1, + end); + state_machine_regs.op_index = 0; + break; + case DW_LNE_define_file: + { + file_table = (File_Entry *) xrealloc + (file_table, (n_files + 1) * sizeof (File_Entry)); + + ++state_machine_regs.last_file_entry; + /* Source file name. */ + file_table[n_files].name = op_code_data; + op_code_data += strlen ((char *) op_code_data) + 1; + /* Directory index. */ + file_table[n_files].directory_index = + read_uleb128 (op_code_data, & bytes_read, + end_of_sequence); + op_code_data += bytes_read; + /* Last modification time. */ + file_table[n_files].modification_date = + read_uleb128 (op_code_data, & bytes_read, + end_of_sequence); + op_code_data += bytes_read; + /* File length. */ + file_table[n_files].length = + read_uleb128 (op_code_data, & bytes_read, + end_of_sequence); + + n_files++; + break; + } + case DW_LNE_set_discriminator: + case DW_LNE_HP_set_sequence: + /* Simply ignored. */ + break; + + default: + printf (_("UNKNOWN (%u): length %d\n"), + ext_op_code, ext_op_code_len - bytes_read); + break; + } + data += ext_op_code_len; + break; + } + case DW_LNS_copy: + break; + + case DW_LNS_advance_pc: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + } + break; + + case DW_LNS_advance_line: + adv = read_sleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.line += adv; + break; + + case DW_LNS_set_file: + adv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.file = adv; + + if (file_table == NULL) + printf (_("\n [Use file table entry %d]\n"), state_machine_regs.file - 1); + else if (file_table[state_machine_regs.file - 1].directory_index == 0) + /* If directory index is 0, that means current directory. */ + printf ("\n./%s:[++]\n", + file_table[state_machine_regs.file - 1].name); + else if (directory_table == NULL) + printf (_("\n [Use directory table entry %d]\n"), + file_table[state_machine_regs.file - 1].directory_index - 1); + else + /* The directory index starts counting at 1. */ + printf ("\n%s/%s:\n", + directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], + file_table[state_machine_regs.file - 1].name); + break; + + case DW_LNS_set_column: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.column = uladv; + break; + + case DW_LNS_negate_stmt: + adv = state_machine_regs.is_stmt; + adv = ! adv; + state_machine_regs.is_stmt = adv; + break; + + case DW_LNS_set_basic_block: + state_machine_regs.basic_block = 1; + break; + + case DW_LNS_const_add_pc: + uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + } + break; + + case DW_LNS_fixed_advance_pc: + SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); + state_machine_regs.address += uladv; + state_machine_regs.op_index = 0; + break; + + case DW_LNS_set_prologue_end: + break; + + case DW_LNS_set_epilogue_begin: + break; + + case DW_LNS_set_isa: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set ISA to %lu\n"), uladv); + break; + + default: + printf (_(" Unknown opcode %d with operands: "), op_code); + + if (standard_opcodes != NULL) + for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) + { + printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, + &bytes_read, end)), + i == 1 ? "" : ", "); + data += bytes_read; + } + putchar ('\n'); + break; + } /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row to the DWARF address/line matrix. */ @@ -2854,9 +3357,16 @@ display_debug_lines_decoded (struct dwarf_section *section, || (op_code == DW_LNS_copy)) { const unsigned int MAX_FILENAME_LENGTH = 35; - char *fileName = (char *)file_table[state_machine_regs.file - 1].name; + char *fileName; char *newFileName = NULL; - size_t fileNameLength = strlen (fileName); + size_t fileNameLength; + + if (file_table) + fileName = (char *) file_table[state_machine_regs.file - 1].name; + else + fileName = ""; + + fileNameLength = strlen (fileName); if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) { @@ -2874,13 +3384,27 @@ display_debug_lines_decoded (struct dwarf_section *section, if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) { - printf (_("%-35s %11d %#18lx\n"), newFileName, - state_machine_regs.line, state_machine_regs.address); + if (linfo.li_max_ops_per_insn == 1) + printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n", + newFileName, state_machine_regs.line, + state_machine_regs.address); + else + printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n", + newFileName, state_machine_regs.line, + state_machine_regs.address, + state_machine_regs.op_index); } else { - printf (_("%s %11d %#18lx\n"), newFileName, - state_machine_regs.line, state_machine_regs.address); + if (linfo.li_max_ops_per_insn == 1) + printf ("%s %11d %#18" DWARF_VMA_FMT "x\n", + newFileName, state_machine_regs.line, + state_machine_regs.address); + else + printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n", + newFileName, state_machine_regs.line, + state_machine_regs.address, + state_machine_regs.op_index); } if (op_code == DW_LNE_end_sequence) @@ -2889,10 +3413,21 @@ display_debug_lines_decoded (struct dwarf_section *section, free (newFileName); } } - free (file_table); - file_table = NULL; - free (directory_table); - directory_table = NULL; + + if (file_table) + { + free (file_table); + file_table = NULL; + n_files = 0; + } + + if (directory_table) + { + free (directory_table); + directory_table = NULL; + n_directories = 0; + } + putchar ('\n'); } @@ -2900,20 +3435,13 @@ display_debug_lines_decoded (struct dwarf_section *section, } static int -display_debug_lines (struct dwarf_section *section, void *file) +display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) { unsigned char *data = section->start; unsigned char *end = data + section->size; int retValRaw = 1; int retValDecoded = 1; - if (load_debug_info (file) == 0) - { - warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), - section->name); - return 0; - } - if (do_debug_lines == 0) do_debug_lines |= FLAG_DEBUG_LINES_RAW; @@ -2966,12 +3494,10 @@ display_debug_pubnames (struct dwarf_section *section, data = start; - names.pn_length = byte_get (data, 4); - data += 4; + SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end); if (names.pn_length == 0xffffffff) { - names.pn_length = byte_get (data, 8); - data += 8; + SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end); offset_size = 8; initial_length_size = 12; } @@ -2981,20 +3507,16 @@ display_debug_pubnames (struct dwarf_section *section, initial_length_size = 4; } - names.pn_version = byte_get (data, 2); - data += 2; - - names.pn_offset = byte_get (data, offset_size); - data += offset_size; + SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end); + SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end); if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE && num_debug_info_entries > 0 && find_debug_info_for_offset (names.pn_offset) == NULL) warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), - names.pn_offset, section->name); + (unsigned long) names.pn_offset, section->name); - names.pn_size = byte_get (data, offset_size); - data += offset_size; + SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end); start += names.pn_length + initial_length_size; @@ -3012,25 +3534,25 @@ display_debug_pubnames (struct dwarf_section *section, } printf (_(" Length: %ld\n"), - names.pn_length); + (long) names.pn_length); printf (_(" Version: %d\n"), names.pn_version); printf (_(" Offset into .debug_info section: 0x%lx\n"), - names.pn_offset); + (unsigned long) names.pn_offset); printf (_(" Size of area in .debug_info section: %ld\n"), - names.pn_size); + (long) names.pn_size); printf (_("\n Offset\tName\n")); do { - offset = byte_get (data, offset_size); + SAFE_BYTE_GET (offset, data, offset_size, end); if (offset != 0) { data += offset_size; printf (" %-6lx\t%s\n", offset, data); - data += strlen ((char *) data) + 1; + data += strnlen ((char *) data, end - data) + 1; } } while (offset != 0); @@ -3055,7 +3577,7 @@ display_debug_macinfo (struct dwarf_section *section, while (curr < end) { unsigned int lineno; - const char *string; + const unsigned char *string; op = (enum dwarf_macinfo_record_type) *curr; curr++; @@ -3066,9 +3588,9 @@ display_debug_macinfo (struct dwarf_section *section, { unsigned int filenum; - lineno = read_leb128 (curr, & bytes_read, 0); + lineno = read_uleb128 (curr, & bytes_read, end); curr += bytes_read; - filenum = read_leb128 (curr, & bytes_read, 0); + filenum = read_uleb128 (curr, & bytes_read, end); curr += bytes_read; printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), @@ -3081,37 +3603,380 @@ display_debug_macinfo (struct dwarf_section *section, break; case DW_MACINFO_define: - lineno = read_leb128 (curr, & bytes_read, 0); + lineno = read_uleb128 (curr, & bytes_read, end); curr += bytes_read; - string = (char *) curr; - curr += strlen (string) + 1; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), lineno, string); break; - case DW_MACINFO_undef: - lineno = read_leb128 (curr, & bytes_read, 0); - curr += bytes_read; - string = (char *) curr; - curr += strlen (string) + 1; - printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), - lineno, string); - break; + case DW_MACINFO_undef: + lineno = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACINFO_vendor_ext: + { + unsigned int constant; + + constant = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), + constant, string); + } + break; + } + } + + return 1; +} + +/* Given LINE_OFFSET into the .debug_line section, attempt to return + filename and dirname corresponding to file name table entry with index + FILEIDX. Return NULL on failure. */ + +static unsigned char * +get_line_filename_and_dirname (dwarf_vma line_offset, + dwarf_vma fileidx, + unsigned char **dir_name) +{ + struct dwarf_section *section = &debug_displays [line].section; + unsigned char *hdrptr, *dirtable, *file_name; + unsigned int offset_size, initial_length_size; + unsigned int version, opcode_base, bytes_read; + dwarf_vma length, diridx; + const unsigned char * end; + + *dir_name = NULL; + if (section->start == NULL + || line_offset >= section->size + || fileidx == 0) + return NULL; + + hdrptr = section->start + line_offset; + end = section->start + section->size; + + SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end); + if (length == 0xffffffff) + { + /* This section is 64-bit DWARF 3. */ + SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + if (length + initial_length_size > section->size) + return NULL; + + SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end); + if (version != 2 && version != 3 && version != 4) + return NULL; + hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */ + if (version >= 4) + hdrptr++; /* Skip max_ops_per_insn. */ + hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */ + + SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end); + if (opcode_base == 0) + return NULL; + + hdrptr += opcode_base - 1; + dirtable = hdrptr; + /* Skip over dirname table. */ + while (*hdrptr != '\0') + hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; + hdrptr++; /* Skip the NUL at the end of the table. */ + /* Now skip over preceding filename table entries. */ + for (; *hdrptr != '\0' && fileidx > 1; fileidx--) + { + hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; + read_uleb128 (hdrptr, &bytes_read, end); + hdrptr += bytes_read; + read_uleb128 (hdrptr, &bytes_read, end); + hdrptr += bytes_read; + read_uleb128 (hdrptr, &bytes_read, end); + hdrptr += bytes_read; + } + if (hdrptr == end || *hdrptr == '\0') + return NULL; + file_name = hdrptr; + hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; + diridx = read_uleb128 (hdrptr, &bytes_read, end); + if (diridx == 0) + return file_name; + for (; *dirtable != '\0' && diridx > 1; diridx--) + dirtable += strnlen ((char *) dirtable, end - dirtable) + 1; + if (*dirtable == '\0') + return NULL; + *dir_name = dirtable; + return file_name; +} + +static int +display_debug_macro (struct dwarf_section *section, + void *file) +{ + unsigned char *start = section->start; + unsigned char *end = start + section->size; + unsigned char *curr = start; + unsigned char *extended_op_buf[256]; + unsigned int bytes_read; + + load_debug_section (str, file); + load_debug_section (line, file); + + printf (_("Contents of the %s section:\n\n"), section->name); + + while (curr < end) + { + unsigned int lineno, version, flags; + unsigned int offset_size = 4; + const unsigned char *string; + dwarf_vma line_offset = 0, sec_offset = curr - start, offset; + unsigned char **extended_ops = NULL; + + SAFE_BYTE_GET_AND_INC (version, curr, 2, end); + if (version != 4) + { + error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"), + section->name); + return 0; + } + + SAFE_BYTE_GET_AND_INC (flags, curr, 1, end); + if (flags & 1) + offset_size = 8; + printf (_(" Offset: 0x%lx\n"), + (unsigned long) sec_offset); + printf (_(" Version: %d\n"), version); + printf (_(" Offset size: %d\n"), offset_size); + if (flags & 2) + { + SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end); + printf (_(" Offset into .debug_line: 0x%lx\n"), + (unsigned long) line_offset); + } + if (flags & 4) + { + unsigned int i, count, op; + dwarf_vma nargs, n; + + SAFE_BYTE_GET_AND_INC (count, curr, 1, end); + + memset (extended_op_buf, 0, sizeof (extended_op_buf)); + extended_ops = extended_op_buf; + if (count) + { + printf (_(" Extension opcode arguments:\n")); + for (i = 0; i < count; i++) + { + SAFE_BYTE_GET_AND_INC (op, curr, 1, end); + extended_ops[op] = curr; + nargs = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + if (nargs == 0) + printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op); + else + { + printf (_(" DW_MACRO_GNU_%02x arguments: "), op); + for (n = 0; n < nargs; n++) + { + unsigned int form; + + SAFE_BYTE_GET_AND_INC (form, curr, 1, end); + printf ("%s%s", get_FORM_name (form), + n == nargs - 1 ? "\n" : ", "); + switch (form) + { + case DW_FORM_data1: + case DW_FORM_data2: + case DW_FORM_data4: + case DW_FORM_data8: + case DW_FORM_sdata: + case DW_FORM_udata: + case DW_FORM_block: + case DW_FORM_block1: + case DW_FORM_block2: + case DW_FORM_block4: + case DW_FORM_flag: + case DW_FORM_string: + case DW_FORM_strp: + case DW_FORM_sec_offset: + break; + default: + error (_("Invalid extension opcode form %s\n"), + get_FORM_name (form)); + return 0; + } + } + } + } + } + } + printf ("\n"); + + while (1) + { + unsigned int op; + + if (curr >= end) + { + error (_(".debug_macro section not zero terminated\n")); + return 0; + } + + SAFE_BYTE_GET_AND_INC (op, curr, 1, end); + if (op == 0) + break; + + switch (op) + { + case DW_MACRO_GNU_start_file: + { + unsigned int filenum; + unsigned char *file_name = NULL, *dir_name = NULL; + + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + filenum = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + + if ((flags & 2) == 0) + error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n")); + else + file_name + = get_line_filename_and_dirname (line_offset, filenum, + &dir_name); + if (file_name == NULL) + printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"), + lineno, filenum); + else + printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"), + lineno, filenum, + dir_name != NULL ? (const char *) dir_name : "", + dir_name != NULL ? "/" : "", file_name); + } + break; + + case DW_MACRO_GNU_end_file: + printf (_(" DW_MACRO_GNU_end_file\n")); + break; + + case DW_MACRO_GNU_define: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_undef: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_define_indirect: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + string = fetch_indirect_string (offset); + printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_undef_indirect: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + string = fetch_indirect_string (offset); + printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_transparent_include: + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"), + (unsigned long) offset); + break; + + case DW_MACRO_GNU_define_indirect_alt: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"), + lineno, (unsigned long) offset); + break; - case DW_MACINFO_vendor_ext: - { - unsigned int constant; + case DW_MACRO_GNU_undef_indirect_alt: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"), + lineno, (unsigned long) offset); + break; - constant = read_leb128 (curr, & bytes_read, 0); - curr += bytes_read; - string = (char *) curr; - curr += strlen (string) + 1; - printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), - constant, string); - } - break; + case DW_MACRO_GNU_transparent_include_alt: + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"), + (unsigned long) offset); + break; + + default: + if (extended_ops == NULL || extended_ops[op] == NULL) + { + error (_(" Unknown macro opcode %02x seen\n"), op); + return 0; + } + else + { + /* Skip over unhandled opcodes. */ + dwarf_vma nargs, n; + unsigned char *desc = extended_ops[op]; + nargs = read_uleb128 (desc, &bytes_read, end); + desc += bytes_read; + if (nargs == 0) + { + printf (_(" DW_MACRO_GNU_%02x\n"), op); + break; + } + printf (_(" DW_MACRO_GNU_%02x -"), op); + for (n = 0; n < nargs; n++) + { + int val; + + SAFE_BYTE_GET_AND_INC (val, desc, 1, end); + curr + = read_and_display_attr_value (0, val, + curr, end, 0, 0, offset_size, + version, NULL, 0, NULL, + NULL); + if (n != nargs - 1) + printf (","); + } + printf ("\n"); + } + break; + } } - } + + printf ("\n"); + } return 1; } @@ -3128,26 +3993,29 @@ display_debug_abbrev (struct dwarf_section *section, do { + unsigned char *last; + free_abbrevs (); + last = start; start = process_abbrev_section (start, end); if (first_abbrev == NULL) continue; - printf (_(" Number TAG\n")); + printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start)); for (entry = first_abbrev; entry; entry = entry->next) { abbrev_attr *attr; - printf (_(" %ld %s [%s]\n"), + printf (" %ld %s [%s]\n", entry->entry, get_TAG_name (entry->tag), entry->children ? _("has children") : _("no children")); for (attr = entry->first_attr; attr; attr = attr->next) - printf (_(" %-18s %s\n"), + printf (" %-18s %s\n", get_AT_name (attr->attribute), get_FORM_name (attr->form)); } @@ -3159,11 +4027,244 @@ display_debug_abbrev (struct dwarf_section *section, return 1; } +/* Display a location list from a normal (ie, non-dwo) .debug_loc section. */ + +static void +display_loc_list (struct dwarf_section *section, + unsigned char **start_ptr, + int debug_info_entry, + unsigned long offset, + unsigned long base_address, + int has_frame_base) +{ + unsigned char *start = *start_ptr; + unsigned char *section_end = section->start + section->size; + unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; + unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; + unsigned int offset_size = debug_information [debug_info_entry].offset_size; + int dwarf_version = debug_information [debug_info_entry].dwarf_version; + + dwarf_vma begin; + dwarf_vma end; + unsigned short length; + int need_frame_base; + + while (1) + { + if (start + 2 * pointer_size > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + printf (" %8.8lx ", offset + (start - *start_ptr)); + + /* Note: we use sign extension here in order to be sure that we can detect + the -1 escape value. Sign extension into the top 32 bits of a 32-bit + address will not affect the values that we display since we always show + hex values, and always the bottom 32-bits. */ + SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end); + SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end); + + if (begin == 0 && end == 0) + { + printf (_("\n")); + break; + } + + /* Check base address specifiers. */ + if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) + { + base_address = end; + print_dwarf_vma (begin, pointer_size); + print_dwarf_vma (end, pointer_size); + printf (_("(base address)\n")); + continue; + } + + if (start + 2 > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); + + if (start + length > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + print_dwarf_vma (begin + base_address, pointer_size); + print_dwarf_vma (end + base_address, pointer_size); + + putchar ('('); + need_frame_base = decode_location_expression (start, + pointer_size, + offset_size, + dwarf_version, + length, + cu_offset, section); + putchar (')'); + + if (need_frame_base && !has_frame_base) + printf (_(" [without DW_AT_frame_base]")); + + if (begin == end) + fputs (_(" (start == end)"), stdout); + else if (begin > end) + fputs (_(" (start > end)"), stdout); + + putchar ('\n'); + + start += length; + } + + *start_ptr = start; +} + +/* Print a .debug_addr table index in decimal, surrounded by square brackets, + right-adjusted in a field of length LEN, and followed by a space. */ + +static void +print_addr_index (unsigned int idx, unsigned int len) +{ + static char buf[15]; + snprintf (buf, sizeof (buf), "[%d]", idx); + printf ("%*s ", len, buf); +} + +/* Display a location list from a .dwo section. It uses address indexes rather + than embedded addresses. This code closely follows display_loc_list, but the + two are sufficiently different that combining things is very ugly. */ + +static void +display_loc_list_dwo (struct dwarf_section *section, + unsigned char **start_ptr, + int debug_info_entry, + unsigned long offset, + int has_frame_base) +{ + unsigned char *start = *start_ptr; + unsigned char *section_end = section->start + section->size; + unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; + unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; + unsigned int offset_size = debug_information [debug_info_entry].offset_size; + int dwarf_version = debug_information [debug_info_entry].dwarf_version; + int entry_type; + unsigned short length; + int need_frame_base; + unsigned int idx; + unsigned int bytes_read; + + while (1) + { + printf (" %8.8lx ", offset + (start - *start_ptr)); + + if (start >= section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end); + switch (entry_type) + { + case 0: /* A terminating entry. */ + *start_ptr = start; + printf (_("\n")); + return; + case 1: /* A base-address entry. */ + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + printf (" "); + printf (_("(base address selection entry)\n")); + continue; + case 2: /* A start/end entry. */ + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + break; + case 3: /* A start/length entry. */ + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); + printf ("%08x ", idx); + break; + case 4: /* An offset pair entry. */ + SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); + printf ("%08x ", idx); + SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); + printf ("%08x ", idx); + break; + default: + warn (_("Unknown location list entry type 0x%x.\n"), entry_type); + *start_ptr = start; + return; + } + + if (start + 2 > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); + if (start + length > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + putchar ('('); + need_frame_base = decode_location_expression (start, + pointer_size, + offset_size, + dwarf_version, + length, + cu_offset, section); + putchar (')'); + + if (need_frame_base && !has_frame_base) + printf (_(" [without DW_AT_frame_base]")); + + putchar ('\n'); + + start += length; + } + + *start_ptr = start; +} + +/* Sort array of indexes in ascending order of loc_offsets[idx]. */ + +static dwarf_vma *loc_offsets; + +static int +loc_offsets_compar (const void *ap, const void *bp) +{ + dwarf_vma a = loc_offsets[*(const unsigned int *) ap]; + dwarf_vma b = loc_offsets[*(const unsigned int *) bp]; + + return (a > b) - (b > a); +} + static int display_debug_loc (struct dwarf_section *section, void *file) { unsigned char *start = section->start; - unsigned char *section_end; unsigned long bytes; unsigned char *section_begin = start; unsigned int num_loc_list = 0; @@ -3171,12 +4272,18 @@ display_debug_loc (struct dwarf_section *section, void *file) unsigned int first = 0; unsigned int i; unsigned int j; + unsigned int k; int seen_first_offset = 0; - int use_debug_info = 1; + int locs_sorted = 1; unsigned char *next; + unsigned int *array = NULL; + const char *suffix = strrchr (section->name, '.'); + int is_dwo = 0; + + if (suffix && strcmp (suffix, ".dwo") == 0) + is_dwo = 1; bytes = section->size; - section_end = start + bytes; if (bytes == 0) { @@ -3199,10 +4306,11 @@ display_debug_loc (struct dwarf_section *section, void *file) unsigned int num; num = debug_information [i].num_loc_offsets; - num_loc_list += num; + if (num > num_loc_list) + num_loc_list = num; /* Check if we can use `debug_information' directly. */ - if (use_debug_info && num != 0) + if (locs_sorted && num != 0) { if (!seen_first_offset) { @@ -3220,7 +4328,7 @@ display_debug_loc (struct dwarf_section *section, void *file) if (last_offset > debug_information [i].loc_offsets [j]) { - use_debug_info = 0; + locs_sorted = 0; break; } last_offset = debug_information [i].loc_offsets [j]; @@ -3228,40 +4336,45 @@ display_debug_loc (struct dwarf_section *section, void *file) } } - if (!use_debug_info) - /* FIXME: Should we handle this case? */ - error (_("Location lists in .debug_info section aren't in ascending order!\n")); - if (!seen_first_offset) error (_("No location lists in .debug_info section!\n")); /* DWARF sections under Mach-O have non-zero addresses. */ if (debug_information [first].num_loc_offsets > 0 && debug_information [first].loc_offsets [0] != section->address) - warn (_("Location lists in %s section start at 0x%lx\n"), - section->name, debug_information [first].loc_offsets [0]); + warn (_("Location lists in %s section start at 0x%s\n"), + section->name, + dwarf_vmatoa ("x", debug_information [first].loc_offsets [0])); + if (!locs_sorted) + array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int)); printf (_("Contents of the %s section:\n\n"), section->name); printf (_(" Offset Begin End Expression\n")); seen_first_offset = 0; for (i = first; i < num_debug_info_entries; i++) { - dwarf_vma begin; - dwarf_vma end; - unsigned short length; unsigned long offset; - unsigned int pointer_size; - unsigned long cu_offset; unsigned long base_address; - int need_frame_base; int has_frame_base; - pointer_size = debug_information [i].pointer_size; - cu_offset = debug_information [i].cu_offset; + if (!locs_sorted) + { + for (k = 0; k < debug_information [i].num_loc_offsets; k++) + array[k] = k; + loc_offsets = debug_information [i].loc_offsets; + qsort (array, debug_information [i].num_loc_offsets, + sizeof (*array), loc_offsets_compar); + } - for (j = 0; j < debug_information [i].num_loc_offsets; j++) + for (k = 0; k < debug_information [i].num_loc_offsets; k++) { + j = locs_sorted ? k : array[k]; + if (k + && debug_information [i].loc_offsets [locs_sorted + ? k - 1 : array [k - 1]] + == debug_information [i].loc_offsets [j]) + continue; has_frame_base = debug_information [i].have_frame_base [j]; /* DWARF sections under Mach-O have non-zero addresses. */ offset = debug_information [i].loc_offsets [j] - section->address; @@ -3290,89 +4403,19 @@ display_debug_loc (struct dwarf_section *section, void *file) continue; } - while (1) - { - if (start + 2 * pointer_size > section_end) - { - warn (_("Location list starting at offset 0x%lx is not terminated.\n"), - offset); - break; - } - - /* Note: we use sign extension here in order to be sure that - we can detect the -1 escape value. Sign extension into the - top 32 bits of a 32-bit address will not affect the values - that we display since we always show hex values, and always - the bottom 32-bits. */ - begin = byte_get_signed (start, pointer_size); - start += pointer_size; - end = byte_get_signed (start, pointer_size); - start += pointer_size; - - printf (" %8.8lx ", offset); - - if (begin == 0 && end == 0) - { - printf (_("\n")); - break; - } - - /* Check base address specifiers. */ - if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) - { - base_address = end; - print_dwarf_vma (begin, pointer_size); - print_dwarf_vma (end, pointer_size); - printf (_("(base address)\n")); - continue; - } - - if (start + 2 > section_end) - { - warn (_("Location list starting at offset 0x%lx is not terminated.\n"), - offset); - break; - } - - length = byte_get (start, 2); - start += 2; - - if (start + length > section_end) - { - warn (_("Location list starting at offset 0x%lx is not terminated.\n"), - offset); - break; - } - - print_dwarf_vma (begin + base_address, pointer_size); - print_dwarf_vma (end + base_address, pointer_size); - - putchar ('('); - need_frame_base = decode_location_expression (start, - pointer_size, - length, - cu_offset, section); - putchar (')'); - - if (need_frame_base && !has_frame_base) - printf (_(" [without DW_AT_frame_base]")); - - if (begin == end) - fputs (_(" (start == end)"), stdout); - else if (begin > end) - fputs (_(" (start > end)"), stdout); - - putchar ('\n'); - - start += length; - } + if (is_dwo) + display_loc_list_dwo (section, &start, i, offset, has_frame_base); + else + display_loc_list (section, &start, i, offset, base_address, + has_frame_base); } } - if (start < section_end) + if (start < section->start + section->size) warn (_("There are %ld unused bytes at the end of section %s\n"), - (long) (section_end - start), section->name); + (long) (section->start + section->size - start), section->name); putchar ('\n'); + free (array); return 1; } @@ -3437,13 +4480,19 @@ display_debug_str (struct dwarf_section *section, static int display_debug_info (struct dwarf_section *section, void *file) { - return process_debug_info (section, file, 0, 0); + return process_debug_info (section, file, section->abbrev_sec, 0, 0); } static int display_debug_types (struct dwarf_section *section, void *file) { - return process_debug_info (section, file, 0, 1); + return process_debug_info (section, file, section->abbrev_sec, 0, 1); +} + +static int +display_trace_info (struct dwarf_section *section, void *file) +{ + return process_debug_info (section, file, section->abbrev_sec, 0, 0); } static int @@ -3473,13 +4522,10 @@ display_debug_aranges (struct dwarf_section *section, hdrptr = start; - arange.ar_length = byte_get (hdrptr, 4); - hdrptr += 4; - + SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end); if (arange.ar_length == 0xffffffff) { - arange.ar_length = byte_get (hdrptr, 8); - hdrptr += 8; + SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end); offset_size = 8; initial_length_size = 12; } @@ -3489,23 +4535,17 @@ display_debug_aranges (struct dwarf_section *section, initial_length_size = 4; } - arange.ar_version = byte_get (hdrptr, 2); - hdrptr += 2; - - arange.ar_info_offset = byte_get (hdrptr, offset_size); - hdrptr += offset_size; + SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end); + SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end); if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE && num_debug_info_entries > 0 && find_debug_info_for_offset (arange.ar_info_offset) == NULL) warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), - arange.ar_info_offset, section->name); + (unsigned long) arange.ar_info_offset, section->name); - arange.ar_pointer_size = byte_get (hdrptr, 1); - hdrptr += 1; - - arange.ar_segment_size = byte_get (hdrptr, 1); - hdrptr += 1; + SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end); if (arange.ar_version != 2 && arange.ar_version != 3) { @@ -3513,14 +4553,23 @@ display_debug_aranges (struct dwarf_section *section, break; } - printf (_(" Length: %ld\n"), arange.ar_length); + printf (_(" Length: %ld\n"), + (long) arange.ar_length); printf (_(" Version: %d\n"), arange.ar_version); - printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset); + printf (_(" Offset into .debug_info: 0x%lx\n"), + (unsigned long) arange.ar_info_offset); printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); printf (_(" Segment Size: %d\n"), arange.ar_segment_size); address_size = arange.ar_pointer_size + arange.ar_segment_size; + if (address_size == 0) + { + error (_("Invalid address size in %s section!\n"), + section->name); + break; + } + /* The DWARF spec does not require that the address size be a power of two, but we do. This will have to change if we ever encounter an uneven architecture. */ @@ -3546,13 +4595,8 @@ display_debug_aranges (struct dwarf_section *section, while (addr_ranges + 2 * address_size <= start) { - address = byte_get (addr_ranges, address_size); - - addr_ranges += address_size; - - length = byte_get (addr_ranges, address_size); - - addr_ranges += address_size; + SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end); + SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end); printf (" "); print_dwarf_vma (address, address_size); @@ -3566,17 +4610,110 @@ display_debug_aranges (struct dwarf_section *section, return 1; } +/* Comparison function for qsort. */ +static int +comp_addr_base (const void * v0, const void * v1) +{ + debug_info * info0 = (debug_info *) v0; + debug_info * info1 = (debug_info *) v1; + return info0->addr_base - info1->addr_base; +} + +/* Display the debug_addr section. */ +static int +display_debug_addr (struct dwarf_section *section, + void *file) +{ + debug_info **debug_addr_info; + unsigned char *entry; + unsigned char *end; + unsigned int i; + unsigned int count; + + if (section->size == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + + if (load_debug_info (file) == 0) + { + warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), + section->name); + return 0; + } + + printf (_("Contents of the %s section:\n\n"), section->name); + + debug_addr_info = (debug_info **) xmalloc ((num_debug_info_entries + 1) + * sizeof (debug_info *)); + + count = 0; + for (i = 0; i < num_debug_info_entries; i++) + { + if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE) + debug_addr_info [count++] = &debug_information [i]; + } + + /* Add a sentinel to make iteration convenient. */ + debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info)); + debug_addr_info [count]->addr_base = section->size; + + qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base); + for (i = 0; i < count; i++) + { + unsigned int idx; + unsigned int address_size = debug_addr_info [i]->pointer_size; + + printf (_(" For compilation unit at offset 0x%s:\n"), + dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset)); + + printf (_("\tIndex\tAddress\n")); + entry = section->start + debug_addr_info [i]->addr_base; + end = section->start + debug_addr_info [i + 1]->addr_base; + idx = 0; + while (entry < end) + { + dwarf_vma base = byte_get (entry, address_size); + printf (_("\t%d:\t"), idx); + print_dwarf_vma (base, address_size); + printf ("\n"); + entry += address_size; + idx++; + } + } + printf ("\n"); + + free (debug_addr_info); + return 1; +} + +/* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */ +static int +display_debug_str_offsets (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + if (section->size == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + /* TODO: Dump the contents. This is made somewhat difficult by not knowing + what the offset size is for this section. */ + return 1; +} + /* Each debug_information[x].range_lists[y] gets this representation for sorting purposes. */ struct range_entry - { - /* The debug_information[x].range_lists[y] value. */ - unsigned long ranges_offset; +{ + /* The debug_information[x].range_lists[y] value. */ + unsigned long ranges_offset; - /* Original debug_information to find parameters of the data. */ - debug_info *debug_info_p; - }; + /* Original debug_information to find parameters of the data. */ + debug_info *debug_info_p; +}; /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */ @@ -3596,15 +4733,13 @@ display_debug_ranges (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) { unsigned char *start = section->start; - unsigned char *section_end; - unsigned long bytes; + unsigned char *last_start = start; + unsigned long bytes = section->size; unsigned char *section_begin = start; + unsigned char *finish = start + bytes; unsigned int num_range_list, i; struct range_entry *range_entries, *range_entry_fill; - bytes = section->size; - section_end = start + bytes; - if (bytes == 0) { printf (_("\nThe %s section is empty.\n"), section->name); @@ -3623,7 +4758,12 @@ display_debug_ranges (struct dwarf_section *section, num_range_list += debug_information [i].num_range_lists; if (num_range_list == 0) - error (_("No range lists in .debug_info section!\n")); + { + /* This can happen when the file was compiled with -gsplit-debug + which removes references to range lists from the primary .o file. */ + printf (_("No range lists in .debug_info section.\n")); + return 1; + } range_entries = (struct range_entry *) xmalloc (sizeof (*range_entries) * num_range_list); @@ -3646,7 +4786,7 @@ display_debug_ranges (struct dwarf_section *section, range_entry_compar); /* DWARF sections under Mach-O have non-zero addresses. */ - if (range_entries[0].ranges_offset != section->address) + if (dwarf_check != 0 && range_entries[0].ranges_offset != section->address) warn (_("Range lists in %s section start at 0x%lx\n"), section->name, range_entries[0].ranges_offset); @@ -3669,20 +4809,25 @@ display_debug_ranges (struct dwarf_section *section, next = section_begin + offset; base_address = debug_info_p->base_address; - if (i > 0) + if (dwarf_check != 0 && i > 0) { if (start < next) warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), (unsigned long) (start - section_begin), (unsigned long) (next - section_begin), section->name); else if (start > next) - warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), - (unsigned long) (start - section_begin), - (unsigned long) (next - section_begin), section->name); + { + if (next == last_start) + continue; + warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), + (unsigned long) (start - section_begin), + (unsigned long) (next - section_begin), section->name); + } } start = next; + last_start = next; - while (1) + while (start < finish) { dwarf_vma begin; dwarf_vma end; @@ -3692,10 +4837,10 @@ display_debug_ranges (struct dwarf_section *section, top 32 bits of a 32-bit address will not affect the values that we display since we always show hex values, and always the bottom 32-bits. */ - begin = byte_get_signed (start, pointer_size); - start += pointer_size; - end = byte_get_signed (start, pointer_size); - start += pointer_size; + SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish); + if (start >= finish) + break; + SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish); printf (" %8.8lx ", offset); @@ -3751,6 +4896,8 @@ typedef struct Frame_Chunk int ra; unsigned char fde_encoding; unsigned char cfa_exp; + unsigned char ptr_size; + unsigned char segment_size; } Frame_Chunk; @@ -3792,21 +4939,35 @@ frame_need_space (Frame_Chunk *fc, unsigned int reg) static const char *const dwarf_regnames_i386[] = { - "eax", "ecx", "edx", "ebx", - "esp", "ebp", "esi", "edi", - "eip", "eflags", NULL, - "st0", "st1", "st2", "st3", - "st4", "st5", "st6", "st7", - NULL, NULL, - "xmm0", "xmm1", "xmm2", "xmm3", - "xmm4", "xmm5", "xmm6", "xmm7", - "mm0", "mm1", "mm2", "mm3", - "mm4", "mm5", "mm6", "mm7", - "fcw", "fsw", "mxcsr", - "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, - "tr", "ldtr" + "eax", "ecx", "edx", "ebx", /* 0 - 3 */ + "esp", "ebp", "esi", "edi", /* 4 - 7 */ + "eip", "eflags", NULL, /* 8 - 10 */ + "st0", "st1", "st2", "st3", /* 11 - 14 */ + "st4", "st5", "st6", "st7", /* 15 - 18 */ + NULL, NULL, /* 19 - 20 */ + "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */ + "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */ + "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */ + "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */ + "fcw", "fsw", "mxcsr", /* 37 - 39 */ + "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */ + "tr", "ldtr", /* 48 - 49 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */ + NULL, NULL, NULL, /* 90 - 92 */ + "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */ }; +void +init_dwarf_regnames_i386 (void) +{ + dwarf_regnames = dwarf_regnames_i386; + dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); +} + static const char *const dwarf_regnames_x86_64[] = { "rax", "rdx", "rcx", "rbx", @@ -3826,9 +4987,26 @@ static const char *const dwarf_regnames_x86_64[] = "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, "fs.base", "gs.base", NULL, NULL, "tr", "ldtr", - "mxcsr", "fcw", "fsw" + "mxcsr", "fcw", "fsw", + "xmm16", "xmm17", "xmm18", "xmm19", + "xmm20", "xmm21", "xmm22", "xmm23", + "xmm24", "xmm25", "xmm26", "xmm27", + "xmm28", "xmm29", "xmm30", "xmm31", + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 83 - 90 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 91 - 98 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 99 - 106 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 107 - 114 */ + NULL, NULL, NULL, /* 115 - 117 */ + "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" }; +void +init_dwarf_regnames_x86_64 (void) +{ + dwarf_regnames = dwarf_regnames_x86_64; + dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); +} + void init_dwarf_regnames (unsigned int e_machine) { @@ -3836,13 +5014,13 @@ init_dwarf_regnames (unsigned int e_machine) { case EM_386: case EM_486: - dwarf_regnames = dwarf_regnames_i386; - dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); + init_dwarf_regnames_i386 (); break; case EM_X86_64: - dwarf_regnames = dwarf_regnames_x86_64; - dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); + case EM_L1OM: + case EM_K1OM: + init_dwarf_regnames_x86_64 (); break; default: @@ -3941,9 +5119,9 @@ frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) printf ("\n"); } -#define GET(N) byte_get (start, N); start += N -#define LEB() read_leb128 (start, & length_return, 0); start += length_return -#define SLEB() read_leb128 (start, & length_return, 1); start += length_return +#define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end); +#define LEB() read_uleb128 (start, & length_return, end); start += length_return +#define SLEB() read_sleb128 (start, & length_return, end); start += length_return static int display_debug_frames (struct dwarf_section *section, @@ -3959,6 +5137,7 @@ display_debug_frames (struct dwarf_section *section, unsigned int length_return; int max_regs = 0; const char *bad_reg = _("bad register: "); + int saved_eh_addr_size = eh_addr_size; printf (_("Contents of the %s section:\n"), section->name); @@ -3973,13 +5152,13 @@ display_debug_frames (struct dwarf_section *section, int need_col_headers = 1; unsigned char *augmentation_data = NULL; unsigned long augmentation_data_len = 0; - int encoded_ptr_size = eh_addr_size; + int encoded_ptr_size = saved_eh_addr_size; int offset_size; int initial_length_size; saved_start = start; - length = byte_get (start, 4); start += 4; + SAFE_BYTE_GET_AND_INC (length, start, 4, end); if (length == 0) { printf ("\n%08lx ZERO terminator\n\n", @@ -3989,8 +5168,7 @@ display_debug_frames (struct dwarf_section *section, if (length == 0xffffffff) { - length = byte_get (start, 8); - start += 8; + SAFE_BYTE_GET_AND_INC (length, start, 8, end); offset_size = 8; initial_length_size = 12; } @@ -4007,9 +5185,11 @@ display_debug_frames (struct dwarf_section *section, length, (unsigned long)(saved_start - section_start)); block_end = end; } - cie_id = byte_get (start, offset_size); start += offset_size; - if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) + SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end); + + if (is_eh ? (cie_id == 0) : ((offset_size == 4 && cie_id == DW_CIE_ID) + || (offset_size == 8 && cie_id == DW64_CIE_ID))) { int version; @@ -4029,48 +5209,36 @@ display_debug_frames (struct dwarf_section *section, fc->augmentation = (char *) start; start = (unsigned char *) strchr ((char *) start, '\0') + 1; - if (fc->augmentation[0] == 'z') + if (strcmp (fc->augmentation, "eh") == 0) + start += eh_addr_size; + + if (version >= 4) { - fc->code_factor = LEB (); - fc->data_factor = SLEB (); - if (version == 1) - { - fc->ra = GET (1); - } - else - { - fc->ra = LEB (); - } - augmentation_data_len = LEB (); - augmentation_data = start; - start += augmentation_data_len; + GET (fc->ptr_size, 1); + GET (fc->segment_size, 1); + eh_addr_size = fc->ptr_size; + } + else + { + fc->ptr_size = eh_addr_size; + fc->segment_size = 0; } - else if (strcmp (fc->augmentation, "eh") == 0) + fc->code_factor = LEB (); + fc->data_factor = SLEB (); + if (version == 1) { - start += eh_addr_size; - fc->code_factor = LEB (); - fc->data_factor = SLEB (); - if (version == 1) - { - fc->ra = GET (1); - } - else - { - fc->ra = LEB (); - } + GET (fc->ra, 1); } else { - fc->code_factor = LEB (); - fc->data_factor = SLEB (); - if (version == 1) - { - fc->ra = GET (1); - } - else - { - fc->ra = LEB (); - } + fc->ra = LEB (); + } + + if (fc->augmentation[0] == 'z') + { + augmentation_data_len = LEB (); + augmentation_data = start; + start += augmentation_data_len; } cie = fc; @@ -4085,6 +5253,11 @@ display_debug_frames (struct dwarf_section *section, (unsigned long)(saved_start - section_start), length, cie_id); printf (" Version: %d\n", version); printf (" Augmentation: \"%s\"\n", fc->augmentation); + if (version >= 4) + { + printf (" Pointer Size: %u\n", fc->ptr_size); + printf (" Segment Size: %u\n", fc->segment_size); + } printf (" Code alignment factor: %u\n", fc->code_factor); printf (" Data alignment factor: %d\n", fc->data_factor); printf (" Return address column: %d\n", fc->ra); @@ -4131,6 +5304,7 @@ display_debug_frames (struct dwarf_section *section, { unsigned char *look_for; static Frame_Chunk fde_fc; + unsigned long segment_selector; fc = & fde_fc; memset (fc, 0, sizeof (Frame_Chunk)); @@ -4152,6 +5326,8 @@ display_debug_frames (struct dwarf_section *section, cie = fc; fc->augmentation = ""; fc->fde_encoding = 0; + fc->ptr_size = eh_addr_size; + fc->segment_size = 0; } else { @@ -4161,6 +5337,9 @@ display_debug_frames (struct dwarf_section *section, memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); fc->augmentation = cie->augmentation; + fc->ptr_size = cie->ptr_size; + eh_addr_size = cie->ptr_size; + fc->segment_size = cie->segment_size; fc->code_factor = cie->code_factor; fc->data_factor = cie->data_factor; fc->cfa_reg = cie->cfa_reg; @@ -4173,13 +5352,20 @@ display_debug_frames (struct dwarf_section *section, if (fc->fde_encoding) encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); - fc->pc_begin = get_encoded_value (start, fc->fde_encoding); - if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) - fc->pc_begin += section->address + (start - section_start); - start += encoded_ptr_size; - fc->pc_range = byte_get (start, encoded_ptr_size); + segment_selector = 0; + if (fc->segment_size) + { + SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end); + } + fc->pc_begin = get_encoded_value (start, fc->fde_encoding, section); start += encoded_ptr_size; + /* FIXME: It appears that sometimes the final pc_range value is + encoded in less than encoded_ptr_size bytes. See the x86_64 + run of the "objcopy on compressed debug sections" test for an + example of this. */ + SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end); + if (cie->augmentation[0] == 'z') { augmentation_data_len = LEB (); @@ -4187,10 +5373,12 @@ display_debug_frames (struct dwarf_section *section, start += augmentation_data_len; } - printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n", + printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=", (unsigned long)(saved_start - section_start), length, cie_id, - (unsigned long)(cie->chunk_start - section_start), - fc->pc_begin, fc->pc_begin + fc->pc_range); + (unsigned long)(cie->chunk_start - section_start)); + if (fc->segment_size) + printf ("%04lx:", segment_selector); + printf ("%08lx..%08lx\n", fc->pc_begin, fc->pc_begin + fc->pc_range); if (! do_debug_frames_interp && augmentation_data_len) { unsigned long i; @@ -4387,13 +5575,14 @@ display_debug_frames (struct dwarf_section *section, { fc->col_type[opa] = cie->col_type[opa]; fc->col_offset[opa] = cie->col_offset[opa]; + if (do_debug_frames_interp + && fc->col_type[opa] == DW_CFA_unreferenced) + fc->col_type[opa] = DW_CFA_undefined; } break; case DW_CFA_set_loc: - vma = get_encoded_value (start, fc->fde_encoding); - if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) - vma += section->address + (start - section_start); + vma = get_encoded_value (start, fc->fde_encoding, section); start += encoded_ptr_size; if (do_debug_frames_interp) frame_display_row (fc, &need_col_headers, &max_regs); @@ -4403,7 +5592,7 @@ display_debug_frames (struct dwarf_section *section, break; case DW_CFA_advance_loc1: - ofs = byte_get (start, 1); start += 1; + SAFE_BYTE_GET_AND_INC (ofs, start, 1, end); if (do_debug_frames_interp) frame_display_row (fc, &need_col_headers, &max_regs); else @@ -4414,7 +5603,7 @@ display_debug_frames (struct dwarf_section *section, break; case DW_CFA_advance_loc2: - ofs = byte_get (start, 2); start += 2; + SAFE_BYTE_GET_AND_INC (ofs, start, 2, end); if (do_debug_frames_interp) frame_display_row (fc, &need_col_headers, &max_regs); else @@ -4425,7 +5614,7 @@ display_debug_frames (struct dwarf_section *section, break; case DW_CFA_advance_loc4: - ofs = byte_get (start, 4); start += 4; + SAFE_BYTE_GET_AND_INC (ofs, start, 4, end); if (do_debug_frames_interp) frame_display_row (fc, &need_col_headers, &max_regs); else @@ -4594,8 +5783,8 @@ display_debug_frames (struct dwarf_section *section, if (! do_debug_frames_interp) { printf (" DW_CFA_def_cfa_expression ("); - decode_location_expression (start, eh_addr_size, ul, 0, - section); + decode_location_expression (start, eh_addr_size, 0, -1, + ul, 0, section); printf (")\n"); } fc->cfa_exp = 1; @@ -4611,7 +5800,7 @@ display_debug_frames (struct dwarf_section *section, { printf (" DW_CFA_expression: %s%s (", reg_prefix, regname (reg, 0)); - decode_location_expression (start, eh_addr_size, + decode_location_expression (start, eh_addr_size, 0, -1, ul, 0, section); printf (")\n"); } @@ -4629,8 +5818,8 @@ display_debug_frames (struct dwarf_section *section, { printf (" DW_CFA_val_expression: %s%s (", reg_prefix, regname (reg, 0)); - decode_location_expression (start, eh_addr_size, ul, 0, - section); + decode_location_expression (start, eh_addr_size, 0, -1, + ul, 0, section); printf (")\n"); } if (*reg_prefix == '\0') @@ -4688,7 +5877,7 @@ display_debug_frames (struct dwarf_section *section, break; case DW_CFA_MIPS_advance_loc8: - ofs = byte_get (start, 8); start += 8; + SAFE_BYTE_GET_AND_INC (ofs, start, 8, end); if (do_debug_frames_interp) frame_display_row (fc, &need_col_headers, &max_regs); else @@ -4738,6 +5927,7 @@ display_debug_frames (struct dwarf_section *section, frame_display_row (fc, &need_col_headers, &max_regs); start = block_end; + eh_addr_size = saved_eh_addr_size; } printf ("\n"); @@ -4749,6 +5939,551 @@ display_debug_frames (struct dwarf_section *section, #undef LEB #undef SLEB +static int +display_gdb_index (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + uint32_t version; + uint32_t cu_list_offset, tu_list_offset; + uint32_t address_table_offset, symbol_table_offset, constant_pool_offset; + unsigned int cu_list_elements, tu_list_elements; + unsigned int address_table_size, symbol_table_slots; + unsigned char *cu_list, *tu_list; + unsigned char *address_table, *symbol_table, *constant_pool; + unsigned int i; + + /* The documentation for the format of this file is in gdb/dwarf2read.c. */ + + printf (_("Contents of the %s section:\n"), section->name); + + if (section->size < 6 * sizeof (uint32_t)) + { + warn (_("Truncated header in the %s section.\n"), section->name); + return 0; + } + + version = byte_get_little_endian (start, 4); + printf (_("Version %ld\n"), (long) version); + + /* Prior versions are obsolete, and future versions may not be + backwards compatible. */ + if (version < 3 || version > 8) + { + warn (_("Unsupported version %lu.\n"), (unsigned long) version); + return 0; + } + if (version < 4) + warn (_("The address table data in version 3 may be wrong.\n")); + if (version < 5) + warn (_("Version 4 does not support case insensitive lookups.\n")); + if (version < 6) + warn (_("Version 5 does not include inlined functions.\n")); + if (version < 7) + warn (_("Version 6 does not include symbol attributes.\n")); + /* Version 7 indices generated by Gold have bad type unit references, + PR binutils/15021. But we don't know if the index was generated by + Gold or not, so to avoid worrying users with gdb-generated indices + we say nothing for version 7 here. */ + + cu_list_offset = byte_get_little_endian (start + 4, 4); + tu_list_offset = byte_get_little_endian (start + 8, 4); + address_table_offset = byte_get_little_endian (start + 12, 4); + symbol_table_offset = byte_get_little_endian (start + 16, 4); + constant_pool_offset = byte_get_little_endian (start + 20, 4); + + if (cu_list_offset > section->size + || tu_list_offset > section->size + || address_table_offset > section->size + || symbol_table_offset > section->size + || constant_pool_offset > section->size) + { + warn (_("Corrupt header in the %s section.\n"), section->name); + return 0; + } + + cu_list_elements = (tu_list_offset - cu_list_offset) / 8; + tu_list_elements = (address_table_offset - tu_list_offset) / 8; + address_table_size = symbol_table_offset - address_table_offset; + symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8; + + cu_list = start + cu_list_offset; + tu_list = start + tu_list_offset; + address_table = start + address_table_offset; + symbol_table = start + symbol_table_offset; + constant_pool = start + constant_pool_offset; + + printf (_("\nCU table:\n")); + for (i = 0; i < cu_list_elements; i += 2) + { + uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8); + uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8); + + printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2, + (unsigned long) cu_offset, + (unsigned long) (cu_offset + cu_length - 1)); + } + + printf (_("\nTU table:\n")); + for (i = 0; i < tu_list_elements; i += 3) + { + uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8); + uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8); + uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8); + + printf (_("[%3u] 0x%lx 0x%lx "), i / 3, + (unsigned long) tu_offset, + (unsigned long) type_offset); + print_dwarf_vma (signature, 8); + printf ("\n"); + } + + printf (_("\nAddress table:\n")); + for (i = 0; i < address_table_size; i += 2 * 8 + 4) + { + uint64_t low = byte_get_little_endian (address_table + i, 8); + uint64_t high = byte_get_little_endian (address_table + i + 8, 8); + uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4); + + print_dwarf_vma (low, 8); + print_dwarf_vma (high, 8); + printf (_("%lu\n"), (unsigned long) cu_index); + } + + printf (_("\nSymbol table:\n")); + for (i = 0; i < symbol_table_slots; ++i) + { + uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4); + uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4); + uint32_t num_cus, cu; + + if (name_offset != 0 + || cu_vector_offset != 0) + { + unsigned int j; + + printf ("[%3u] %s:", i, constant_pool + name_offset); + num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4); + if (num_cus > 1) + printf ("\n"); + for (j = 0; j < num_cus; ++j) + { + int is_static; + gdb_index_symbol_kind kind; + + cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4); + is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu); + kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu); + cu = GDB_INDEX_CU_VALUE (cu); + /* Convert to TU number if it's for a type unit. */ + if (cu >= cu_list_elements / 2) + printf ("%cT%lu", num_cus > 1 ? '\t' : ' ', + (unsigned long) (cu - cu_list_elements / 2)); + else + printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu); + + switch (kind) + { + case GDB_INDEX_SYMBOL_KIND_NONE: + printf (_(" [no symbol information]")); + break; + case GDB_INDEX_SYMBOL_KIND_TYPE: + printf (is_static + ? _(" [static type]") + : _(" [global type]")); + break; + case GDB_INDEX_SYMBOL_KIND_VARIABLE: + printf (is_static + ? _(" [static variable]") + : _(" [global variable]")); + break; + case GDB_INDEX_SYMBOL_KIND_FUNCTION: + printf (is_static + ? _(" [static function]") + : _(" [global function]")); + break; + case GDB_INDEX_SYMBOL_KIND_OTHER: + printf (is_static + ? _(" [static other]") + : _(" [global other]")); + break; + default: + printf (is_static + ? _(" [static unknown: %d]") + : _(" [global unknown: %d]"), + kind); + break; + } + if (num_cus > 1) + printf ("\n"); + } + if (num_cus <= 1) + printf ("\n"); + } + } + + return 1; +} + +/* Pre-allocate enough space for the CU/TU sets needed. */ + +static void +prealloc_cu_tu_list (unsigned int nshndx) +{ + if (shndx_pool == NULL) + { + shndx_pool_size = nshndx; + shndx_pool_used = 0; + shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size, + sizeof (unsigned int)); + } + else + { + shndx_pool_size = shndx_pool_used + nshndx; + shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size, + sizeof (unsigned int)); + } +} + +static void +add_shndx_to_cu_tu_entry (unsigned int shndx) +{ + if (shndx_pool_used >= shndx_pool_size) + { + error (_("Internal error: out of space in the shndx pool.\n")); + return; + } + shndx_pool [shndx_pool_used++] = shndx; +} + +static void +end_cu_tu_entry (void) +{ + if (shndx_pool_used >= shndx_pool_size) + { + error (_("Internal error: out of space in the shndx pool.\n")); + return; + } + shndx_pool [shndx_pool_used++] = 0; +} + +/* Return the short name of a DWARF section given by a DW_SECT enumerator. */ + +static const char * +get_DW_SECT_short_name (unsigned int dw_sect) +{ + static char buf[16]; + + switch (dw_sect) + { + case DW_SECT_INFO: + return "info"; + case DW_SECT_TYPES: + return "types"; + case DW_SECT_ABBREV: + return "abbrev"; + case DW_SECT_LINE: + return "line"; + case DW_SECT_LOC: + return "loc"; + case DW_SECT_STR_OFFSETS: + return "str_off"; + case DW_SECT_MACINFO: + return "macinfo"; + case DW_SECT_MACRO: + return "macro"; + default: + break; + } + + snprintf (buf, sizeof (buf), "%d", dw_sect); + return buf; +} + +/* Process a CU or TU index. If DO_DISPLAY is true, print the contents. + These sections are extensions for Fission. + See http://gcc.gnu.org/wiki/DebugFissionDWP. */ + +static int +process_cu_tu_index (struct dwarf_section *section, int do_display) +{ + unsigned char *phdr = section->start; + unsigned char *limit = phdr + section->size; + unsigned char *phash; + unsigned char *pindex; + unsigned char *ppool; + unsigned int version; + unsigned int ncols = 0; + unsigned int nused; + unsigned int nslots; + unsigned int i; + unsigned int j; + dwarf_vma signature_high; + dwarf_vma signature_low; + char buf[64]; + + version = byte_get (phdr, 4); + if (version >= 2) + ncols = byte_get (phdr + 4, 4); + nused = byte_get (phdr + 8, 4); + nslots = byte_get (phdr + 12, 4); + phash = phdr + 16; + pindex = phash + nslots * 8; + ppool = pindex + nslots * 4; + + if (do_display) + { + printf (_("Contents of the %s section:\n\n"), section->name); + printf (_(" Version: %d\n"), version); + if (version >= 2) + printf (_(" Number of columns: %d\n"), ncols); + printf (_(" Number of used entries: %d\n"), nused); + printf (_(" Number of slots: %d\n\n"), nslots); + } + + if (ppool > limit) + { + warn (_("Section %s too small for %d hash table entries\n"), + section->name, nslots); + return 0; + } + + if (version == 1) + { + if (!do_display) + prealloc_cu_tu_list ((limit - ppool) / 4); + for (i = 0; i < nslots; i++) + { + unsigned char *shndx_list; + unsigned int shndx; + + byte_get_64 (phash, &signature_high, &signature_low); + if (signature_high != 0 || signature_low != 0) + { + j = byte_get (pindex, 4); + shndx_list = ppool + j * 4; + if (do_display) + printf (_(" [%3d] Signature: 0x%s Sections: "), + i, dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + for (;;) + { + if (shndx_list >= limit) + { + warn (_("Section %s too small for shndx pool\n"), + section->name); + return 0; + } + shndx = byte_get (shndx_list, 4); + if (shndx == 0) + break; + if (do_display) + printf (" %d", shndx); + else + add_shndx_to_cu_tu_entry (shndx); + shndx_list += 4; + } + if (do_display) + printf ("\n"); + else + end_cu_tu_entry (); + } + phash += 8; + pindex += 4; + } + } + else if (version == 2) + { + unsigned int val; + unsigned int dw_sect; + unsigned char *ph = phash; + unsigned char *pi = pindex; + unsigned char *poffsets = ppool + ncols * 4; + unsigned char *psizes = poffsets + nused * ncols * 4; + unsigned char *pend = psizes + nused * ncols * 4; + bfd_boolean is_tu_index; + struct cu_tu_set *this_set = NULL; + unsigned int row; + unsigned char *prow; + + is_tu_index = strcmp (section->name, ".debug_tu_index") == 0; + + if (pend > limit) + { + warn (_("Section %s too small for offset and size tables\n"), + section->name); + return 0; + } + + if (do_display) + { + printf (_(" Offset table\n")); + printf (" slot %-16s ", + is_tu_index ? _("signature") : _("dwo_id")); + } + else + { + if (is_tu_index) + { + tu_count = nused; + tu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); + this_set = tu_sets; + } + else + { + cu_count = nused; + cu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); + this_set = cu_sets; + } + } + if (do_display) + { + for (j = 0; j < ncols; j++) + { + dw_sect = byte_get (ppool + j * 4, 4); + printf (" %8s", get_DW_SECT_short_name (dw_sect)); + } + printf ("\n"); + } + for (i = 0; i < nslots; i++) + { + byte_get_64 (ph, &signature_high, &signature_low); + row = byte_get (pi, 4); + if (row != 0) + { + if (!do_display) + memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t)); + prow = poffsets + (row - 1) * ncols * 4; + if (do_display) + printf (_(" [%3d] 0x%s"), + i, dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + for (j = 0; j < ncols; j++) + { + val = byte_get (prow + j * 4, 4); + if (do_display) + printf (" %8d", val); + else + { + dw_sect = byte_get (ppool + j * 4, 4); + this_set [row - 1].section_offsets [dw_sect] = val; + } + } + if (do_display) + printf ("\n"); + } + ph += 8; + pi += 4; + } + + ph = phash; + pi = pindex; + if (do_display) + { + printf ("\n"); + printf (_(" Size table\n")); + printf (" slot %-16s ", + is_tu_index ? _("signature") : _("dwo_id")); + } + for (j = 0; j < ncols; j++) + { + val = byte_get (ppool + j * 4, 4); + if (do_display) + printf (" %8s", get_DW_SECT_short_name (val)); + } + if (do_display) + printf ("\n"); + for (i = 0; i < nslots; i++) + { + byte_get_64 (ph, &signature_high, &signature_low); + row = byte_get (pi, 4); + if (row != 0) + { + prow = psizes + (row - 1) * ncols * 4; + if (do_display) + printf (_(" [%3d] 0x%s"), + i, dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + for (j = 0; j < ncols; j++) + { + val = byte_get (prow + j * 4, 4); + if (do_display) + printf (" %8d", val); + else + { + dw_sect = byte_get (ppool + j * 4, 4); + this_set [row - 1].section_sizes [dw_sect] = val; + } + } + if (do_display) + printf ("\n"); + } + ph += 8; + pi += 4; + } + } + else if (do_display) + printf (_(" Unsupported version\n")); + + if (do_display) + printf ("\n"); + + return 1; +} + +/* Load the CU and TU indexes if present. This will build a list of + section sets that we can use to associate a .debug_info.dwo section + with its associated .debug_abbrev.dwo section in a .dwp file. */ + +static void +load_cu_tu_indexes (void *file) +{ + /* If we have already loaded (or tried to load) the CU and TU indexes + then do not bother to repeat the task. */ + if (cu_tu_indexes_read) + return; + + if (load_debug_section (dwp_cu_index, file)) + process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); + + if (load_debug_section (dwp_tu_index, file)) + process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); + + cu_tu_indexes_read = 1; +} + +/* Find the set of sections that includes section SHNDX. */ + +unsigned int * +find_cu_tu_set (void *file, unsigned int shndx) +{ + unsigned int i; + + load_cu_tu_indexes (file); + + /* Find SHNDX in the shndx pool. */ + for (i = 0; i < shndx_pool_used; i++) + if (shndx_pool [i] == shndx) + break; + + if (i >= shndx_pool_used) + return NULL; + + /* Now backup to find the first entry in the set. */ + while (i > 0 && shndx_pool [i - 1] != 0) + i--; + + return shndx_pool + i; +} + +/* Display a .debug_cu_index or .debug_tu_index section. */ + +static int +display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) +{ + return process_cu_tu_index (section, 1); +} + static int display_debug_not_supported (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) @@ -4789,28 +6524,6 @@ xcrealloc (void *ptr, size_t nmemb, size_t size) return xrealloc (ptr, nmemb * size); } -void -error (const char *message, ...) -{ - va_list args; - - va_start (args, message); - fprintf (stderr, _("%s: Error: "), program_name); - vfprintf (stderr, message, args); - va_end (args); -} - -void -warn (const char *message, ...) -{ - va_list args; - - va_start (args, message); - fprintf (stderr, _("%s: Warning: "), program_name); - vfprintf (stderr, message, args); - va_end (args); -} - void free_debug_memory (void) { @@ -4859,13 +6572,16 @@ dwarf_select_sections_by_names (const char *names) /* Please keep this table alpha- sorted. */ { "Ranges", & do_debug_ranges, 1 }, { "abbrev", & do_debug_abbrevs, 1 }, + { "addr", & do_debug_addr, 1 }, { "aranges", & do_debug_aranges, 1 }, + { "cu_index", & do_debug_cu_index, 1 }, + { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, { "frames", & do_debug_frames, 1 }, { "frames-interp", & do_debug_frames_interp, 1 }, + /* The special .gdb_index section. */ + { "gdb_index", & do_gdb_index, 1 }, { "info", & do_debug_info, 1 }, { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ - { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, - { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, { "loc", & do_debug_loc, 1 }, { "macro", & do_debug_macinfo, 1 }, { "pubnames", & do_debug_pubnames, 1 }, @@ -4873,26 +6589,31 @@ dwarf_select_sections_by_names (const char *names) /* This entry is for compatability with earlier versions of readelf. */ { "ranges", & do_debug_aranges, 1 }, + { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, { "str", & do_debug_str, 1 }, + /* These trace_* sections are used by Itanium VMS. */ + { "trace_abbrev", & do_trace_abbrevs, 1 }, + { "trace_aranges", & do_trace_aranges, 1 }, + { "trace_info", & do_trace_info, 1 }, { NULL, NULL, 0 } }; const char *p; - + p = names; while (*p) { const debug_dump_long_opts * entry; - + for (entry = opts_table; entry->option; entry++) { size_t len = strlen (entry->option); - + if (strncmp (p, entry->option, len) == 0 && (p[len] == ',' || p[len] == '\0')) { * entry->variable |= entry->val; - + /* The --debug-dump=frames-interp option also enables the --debug-dump=frames option. */ if (do_debug_frames_interp) @@ -4902,7 +6623,7 @@ dwarf_select_sections_by_names (const char *names) break; } } - + if (entry->option == NULL) { warn (_("Unrecognized debug option '%s'\n"), p); @@ -4910,7 +6631,7 @@ dwarf_select_sections_by_names (const char *names) if (p == NULL) break; } - + if (*p == ',') p++; } @@ -4927,53 +6648,53 @@ dwarf_select_sections_by_letters (const char *letters) case 'i': do_debug_info = 1; break; - + case 'a': do_debug_abbrevs = 1; break; - + case 'l': do_debug_lines |= FLAG_DEBUG_LINES_RAW; break; - + case 'L': do_debug_lines |= FLAG_DEBUG_LINES_DECODED; break; - + case 'p': do_debug_pubnames = 1; break; - + case 't': do_debug_pubtypes = 1; break; - + case 'r': do_debug_aranges = 1; break; - + case 'R': do_debug_ranges = 1; break; - + case 'F': do_debug_frames_interp = 1; case 'f': do_debug_frames = 1; break; - + case 'm': do_debug_macinfo = 1; break; - + case 's': do_debug_str = 1; break; - + case 'o': do_debug_loc = 1; break; - + default: warn (_("Unrecognized debug option '%s'\n"), optarg); break; @@ -4994,40 +6715,82 @@ dwarf_select_sections_all (void) do_debug_macinfo = 1; do_debug_str = 1; do_debug_loc = 1; + do_gdb_index = 1; + do_trace_info = 1; + do_trace_abbrevs = 1; + do_trace_aranges = 1; + do_debug_addr = 1; + do_debug_cu_index = 1; } struct dwarf_section_display debug_displays[] = { - { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 }, - display_debug_abbrev, &do_debug_abbrevs, 0 }, - { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 }, - display_debug_aranges, &do_debug_aranges, 1 }, - { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 }, - display_debug_frames, &do_debug_frames, 1 }, - { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 }, - display_debug_info, &do_debug_info, 1 }, - { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 }, - display_debug_lines, &do_debug_lines, 1 }, - { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 }, - display_debug_pubnames, &do_debug_pubnames, 0 }, - { { ".eh_frame", "", NULL, NULL, 0, 0 }, - display_debug_frames, &do_debug_frames, 1 }, - { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 }, - display_debug_macinfo, &do_debug_macinfo, 0 }, - { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 }, - display_debug_str, &do_debug_str, 0 }, - { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 }, - display_debug_loc, &do_debug_loc, 1 }, - { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 }, - display_debug_pubnames, &do_debug_pubtypes, 0 }, - { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 }, - display_debug_ranges, &do_debug_ranges, 1 }, - { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 }, - display_debug_not_supported, NULL, 0 }, - { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 }, - display_debug_not_supported, NULL, 0 }, - { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 }, - display_debug_types, &do_debug_info, 1 }, - { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 }, - display_debug_not_supported, NULL, 0 } + { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0 }, + display_debug_abbrev, &do_debug_abbrevs, 0 }, + { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0 }, + display_debug_aranges, &do_debug_aranges, 1 }, + { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0 }, + display_debug_frames, &do_debug_frames, 1 }, + { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev }, + display_debug_info, &do_debug_info, 1 }, + { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0 }, + display_debug_lines, &do_debug_lines, 1 }, + { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0 }, + display_debug_pubnames, &do_debug_pubnames, 0 }, + { { ".eh_frame", "", NULL, NULL, 0, 0, 0 }, + display_debug_frames, &do_debug_frames, 1 }, + { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0 }, + display_debug_macinfo, &do_debug_macinfo, 0 }, + { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0 }, + display_debug_macro, &do_debug_macinfo, 1 }, + { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0 }, + display_debug_str, &do_debug_str, 0 }, + { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0 }, + display_debug_loc, &do_debug_loc, 1 }, + { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0 }, + display_debug_pubnames, &do_debug_pubtypes, 0 }, + { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0 }, + display_debug_ranges, &do_debug_ranges, 1 }, + { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0 }, + display_debug_not_supported, NULL, 0 }, + { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0 }, + display_debug_not_supported, NULL, 0 }, + { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev }, + display_debug_types, &do_debug_info, 1 }, + { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0 }, + display_debug_not_supported, NULL, 0 }, + { { ".gdb_index", "", NULL, NULL, 0, 0, 0 }, + display_gdb_index, &do_gdb_index, 0 }, + { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev }, + display_trace_info, &do_trace_info, 1 }, + { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0 }, + display_debug_abbrev, &do_trace_abbrevs, 0 }, + { { ".trace_aranges", "", NULL, NULL, 0, 0, 0 }, + display_debug_aranges, &do_trace_aranges, 0 }, + { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo }, + display_debug_info, &do_debug_info, 1 }, + { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_abbrev, &do_debug_abbrevs, 0 }, + { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo }, + display_debug_types, &do_debug_info, 1 }, + { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_lines, &do_debug_lines, 1 }, + { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_loc, &do_debug_loc, 1 }, + { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_macro, &do_debug_macinfo, 1 }, + { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_macinfo, &do_debug_macinfo, 0 }, + { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_str, &do_debug_str, 1 }, + { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0 }, + display_debug_str_offsets, NULL, 0 }, + { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_str_offsets, NULL, 0 }, + { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0 }, + display_debug_addr, &do_debug_addr, 1 }, + { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0 }, + display_cu_index, &do_debug_cu_index, 0 }, + { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0 }, + display_cu_index, &do_debug_cu_index, 0 }, };