/* objdump.c -- dump information about an object file.
- Copyright (C) 1990-2017 Free Software Foundation, Inc.
+ Copyright (C) 1990-2019 Free Software Foundation, Inc.
This file is part of GNU Binutils.
#include "bucomm.h"
#include "elfcomm.h"
#include "dwarf.h"
+#include "ctf-api.h"
#include "getopt.h"
#include "safe-ctype.h"
#include "dis-asm.h"
static int show_raw_insn; /* --show-raw-insn */
static int dump_dwarf_section_info; /* --dwarf */
static int dump_stab_section_info; /* --stabs */
+static int dump_ctf_section_info; /* --ctf */
+static char *dump_ctf_section_name;
+static char *dump_ctf_parent_name; /* --ctf-parent */
static int do_demangle; /* -C, --demangle */
static bfd_boolean disassemble; /* -d */
static bfd_boolean disassemble_all; /* -D */
static int prefix_strip; /* --prefix-strip */
static size_t prefix_length;
static bfd_boolean unwind_inlines; /* --inlines. */
+static const char * disasm_sym; /* Disassembly start symbol. */
+
+static int demangle_flags = DMGL_ANSI | DMGL_PARAMS;
/* A structure to record the sections mentioned in -j switches. */
struct only
long dynrelcount;
disassembler_ftype disassemble_fn;
arelent * reloc;
+ const char * symbol;
};
/* Architecture to disassemble for, or default if NULL. */
static bfd_byte *stabs;
static bfd_size_type stab_size;
-static char *strtab;
+static bfd_byte *strtab;
static bfd_size_type stabstr_size;
static bfd_boolean is_relocatable = FALSE;
-x, --all-headers Display the contents of all headers\n\
-d, --disassemble Display assembler contents of executable sections\n\
-D, --disassemble-all Display assembler contents of all sections\n\
+ --disassemble=<sym> Display assembler contents from <sym>\n\
-S, --source Intermix source code with disassembly\n\
-s, --full-contents Display the full contents of all sections requested\n\
-g, --debugging Display debug information in object file\n\
-e, --debugging-tags Display debug information using ctags style\n\
-G, --stabs Display (in raw form) any STABS info in the file\n\
- -W[lLiaprmfFsoRt] or\n\
+ -W[lLiaprmfFsoRtUuTgAckK] or\n\
--dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\
=frames-interp,=str,=loc,=Ranges,=pubtypes,\n\
=gdb_index,=trace_info,=trace_abbrev,=trace_aranges,\n\
- =addr,=cu_index]\n\
+ =addr,=cu_index,=links,=follow-links]\n\
Display DWARF info in the file\n\
+ --ctf=SECTION Display CTF info from SECTION\n\
-t, --syms Display the contents of the symbol table(s)\n\
-T, --dynamic-syms Display the contents of the dynamic symbol table\n\
-r, --reloc Display the relocation entries in the file\n\
The STYLE, if specified, can be `auto', `gnu',\n\
`lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
or `gnat'\n\
+ --recurse-limit Enable a limit on recursion whilst demangling. [Default]\n\
+ --no-recurse-limit Disable a limit on recursion whilst demangling\n\
-w, --wide Format output for more than 80 columns\n\
-z, --disassemble-zeroes Do not skip blocks of zeroes when disassembling\n\
--start-address=ADDR Only process data whose address is >= ADDR\n\
--dwarf-start=N Display DIEs starting with N, at the same depth\n\
or deeper\n\
--dwarf-check Make additional dwarf internal consistency checks.\
- \n\n"));
+ \n\
+ --ctf-parent=SECTION Use SECTION as the CTF parent\n\n"));
list_supported_targets (program_name, stream);
list_supported_architectures (program_name, stream);
OPTION_DWARF_DEPTH,
OPTION_DWARF_CHECK,
OPTION_DWARF_START,
- OPTION_INLINES
+ OPTION_RECURSE_LIMIT,
+ OPTION_NO_RECURSE_LIMIT,
+ OPTION_INLINES,
+ OPTION_CTF,
+ OPTION_CTF_PARENT
};
static struct option long_options[]=
{"debugging", no_argument, NULL, 'g'},
{"debugging-tags", no_argument, NULL, 'e'},
{"demangle", optional_argument, NULL, 'C'},
- {"disassemble", no_argument, NULL, 'd'},
+ {"disassemble", optional_argument, NULL, 'd'},
{"disassemble-all", no_argument, NULL, 'D'},
{"disassembler-options", required_argument, NULL, 'M'},
{"disassemble-zeroes", no_argument, NULL, 'z'},
{"line-numbers", no_argument, NULL, 'l'},
{"no-show-raw-insn", no_argument, &show_raw_insn, -1},
{"prefix-addresses", no_argument, &prefix_addresses, 1},
+ {"recurse-limit", no_argument, NULL, OPTION_RECURSE_LIMIT},
+ {"recursion-limit", no_argument, NULL, OPTION_RECURSE_LIMIT},
+ {"no-recurse-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
+ {"no-recursion-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
{"reloc", no_argument, NULL, 'r'},
{"section", required_argument, NULL, 'j'},
{"section-headers", no_argument, NULL, 'h'},
{"special-syms", no_argument, &dump_special_syms, 1},
{"include", required_argument, NULL, 'I'},
{"dwarf", optional_argument, NULL, OPTION_DWARF},
+ {"ctf", required_argument, NULL, OPTION_CTF},
+ {"ctf-parent", required_argument, NULL, OPTION_CTF_PARENT},
{"stabs", no_argument, NULL, 'G'},
{"start-address", required_argument, NULL, OPTION_START_ADDRESS},
{"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
{"prefix", required_argument, NULL, OPTION_PREFIX},
{"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP},
{"insn-width", required_argument, NULL, OPTION_INSN_WIDTH},
- {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH},
- {"dwarf-start", required_argument, 0, OPTION_DWARF_START},
- {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK},
- {"inlines", no_argument, 0, OPTION_INLINES},
+ {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH},
+ {"dwarf-start", required_argument, 0, OPTION_DWARF_START},
+ {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK},
+ {"inlines", no_argument, 0, OPTION_INLINES},
{0, no_argument, 0, 0}
};
\f
bfd_nonfatal (msg);
exit_status = 1;
}
+
+/* Returns a version of IN with any control characters
+ replaced by escape sequences. Uses a static buffer
+ if necessary. */
+
+static const char *
+sanitize_string (const char * in)
+{
+ static char * buffer = NULL;
+ static size_t buffer_len = 0;
+ const char * original = in;
+ char * out;
+
+ /* Paranoia. */
+ if (in == NULL)
+ return "";
+
+ /* See if any conversion is necessary. In the majority
+ of cases it will not be needed. */
+ do
+ {
+ char c = *in++;
+
+ if (c == 0)
+ return original;
+
+ if (ISCNTRL (c))
+ break;
+ }
+ while (1);
+
+ /* Copy the input, translating as needed. */
+ in = original;
+ if (buffer_len < (strlen (in) * 2))
+ {
+ free ((void *) buffer);
+ buffer_len = strlen (in) * 2;
+ buffer = xmalloc (buffer_len + 1);
+ }
+
+ out = buffer;
+ do
+ {
+ char c = *in++;
+
+ if (c == 0)
+ break;
+
+ if (!ISCNTRL (c))
+ *out++ = c;
+ else
+ {
+ *out++ = '^';
+ *out++ = c + 0x40;
+ }
+ }
+ while (1);
+
+ *out = 0;
+ return buffer;
+}
+
\f
/* Returns TRUE if the specified section should be dumped. */
return;
printf ("%3d %-*s %08lx ", section->index, longest_section_name,
- bfd_get_section_name (abfd, section),
+ sanitize_string (bfd_get_section_name (abfd, section)),
(unsigned long) bfd_section_size (abfd, section) / opb);
bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
printf (" ");
static bfd_boolean
is_significant_symbol_name (const char * name)
{
- return strcmp (name, ".plt") == 0
- || strcmp (name, ".got") == 0
- || strcmp (name, ".plt.got") == 0;
+ return strncmp (name, ".plt", 4) == 0 || strcmp (name, ".got") == 0;
}
/* Filter out (in place) symbols that are useless for disassembly.
bfd_vma asz, bsz;
asz = 0;
- if ((a->flags & BSF_SYNTHETIC) == 0)
+ if ((a->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
asz = ((elf_symbol_type *) a)->internal_elf_sym.st_size;
bsz = 0;
- if ((b->flags & BSF_SYNTHETIC) == 0)
+ if ((b->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
bsz = ((elf_symbol_type *) b)->internal_elf_sym.st_size;
if (asz != bsz)
return asz > bsz ? -1 : 1;
if (do_demangle && name[0] != '\0')
{
/* Demangle the name. */
- alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
+ alloc = bfd_demangle (abfd, name, demangle_flags);
if (alloc != NULL)
name = alloc;
}
- if ((sym->flags & BSF_SYNTHETIC) == 0)
+ if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0)
version_string = bfd_get_symbol_version_string (abfd, sym, &hidden);
if (bfd_is_und_section (bfd_get_section (sym)))
hidden = TRUE;
+ name = sanitize_string (name);
+
if (inf != NULL)
{
(*inf->fprintf_func) (inf->stream, "%s", name);
free (alloc);
}
+static inline bfd_boolean
+sym_ok (bfd_boolean want_section,
+ bfd * abfd ATTRIBUTE_UNUSED,
+ long place,
+ asection * sec,
+ struct disassemble_info * inf)
+{
+ if (want_section)
+ {
+ /* Note - we cannot just compare section pointers because they could
+ be different, but the same... Ie the symbol that we are trying to
+ find could have come from a separate debug info file. Under such
+ circumstances the symbol will be associated with a section in the
+ debug info file, whilst the section we want is in a normal file.
+ So the section pointers will be different, but the section names
+ will be the same. */
+ if (strcmp (bfd_section_name (abfd, sorted_syms[place]->section),
+ bfd_section_name (abfd, sec)) != 0)
+ return FALSE;
+ }
+
+ return inf->symbol_is_valid (sorted_syms[place], inf);
+}
+
/* Locate a symbol given a bfd and a section (from INFO->application_data),
and a VMA. If INFO->application_data->require_sec is TRUE, then always
require the symbol to be in the section. Returns NULL if there is no
asection *sec;
unsigned int opb;
bfd_boolean want_section;
+ long rel_count;
if (sorted_symcount < 1)
return NULL;
&& (bfd_asymbol_value (sorted_syms[min])
== bfd_asymbol_value (sorted_syms[thisplace])))
{
- if (sorted_syms[min]->section == sec
- && inf->symbol_is_valid (sorted_syms[min], inf))
+ if (sym_ok (TRUE, abfd, min, sec, inf))
{
thisplace = min;
&& vma >= bfd_get_section_vma (abfd, sec)
&& vma < (bfd_get_section_vma (abfd, sec)
+ bfd_section_size (abfd, sec) / opb)));
- if ((sorted_syms[thisplace]->section != sec && want_section)
- || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
+
+ if (! sym_ok (want_section, abfd, thisplace, sec, inf))
{
long i;
long newplace = sorted_symcount;
for (i = min - 1; i >= 0; i--)
{
- if ((sorted_syms[i]->section == sec || !want_section)
- && inf->symbol_is_valid (sorted_syms[i], inf))
+ if (sym_ok (want_section, abfd, i, sec, inf))
{
if (newplace == sorted_symcount)
newplace = i;
Look for one with a larger value. */
for (i = thisplace + 1; i < sorted_symcount; i++)
{
- if ((sorted_syms[i]->section == sec || !want_section)
- && inf->symbol_is_valid (sorted_syms[i], inf))
+ if (sym_ok (want_section, abfd, i, sec, inf))
{
thisplace = i;
break;
}
}
- if ((sorted_syms[thisplace]->section != sec && want_section)
- || ! inf->symbol_is_valid (sorted_syms[thisplace], inf))
+ if (! sym_ok (want_section, abfd, thisplace, sec, inf))
/* There is no suitable symbol. */
return NULL;
}
and we have dynamic relocations available, then we can produce
a better result by matching a relocation to the address and
using the symbol associated with that relocation. */
+ rel_count = aux->dynrelcount;
if (!want_section
- && aux->dynrelbuf != NULL
&& sorted_syms[thisplace]->value != vma
+ && rel_count > 0
+ && aux->dynrelbuf != NULL
+ && aux->dynrelbuf[0]->address <= vma
+ && aux->dynrelbuf[rel_count - 1]->address >= vma
/* If we have matched a synthetic symbol, then stick with that. */
&& (sorted_syms[thisplace]->flags & BSF_SYNTHETIC) == 0)
{
- long rel_count;
- arelent ** rel_pp;
+ arelent ** rel_low;
+ arelent ** rel_high;
- for (rel_count = aux->dynrelcount, rel_pp = aux->dynrelbuf;
- rel_count--;)
+ rel_low = aux->dynrelbuf;
+ rel_high = rel_low + rel_count - 1;
+ while (rel_low <= rel_high)
{
- arelent * rel = rel_pp[rel_count];
+ arelent **rel_mid = &rel_low[(rel_high - rel_low) / 2];
+ arelent * rel = *rel_mid;
- if (rel->address == vma
- && rel->sym_ptr_ptr != NULL
- /* Absolute relocations do not provide a more helpful symbolic address. */
- && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section))
+ if (rel->address == vma)
{
- if (place != NULL)
- * place = thisplace;
- return * rel->sym_ptr_ptr;
+ /* Absolute relocations do not provide a more helpful
+ symbolic address. Find a non-absolute relocation
+ with the same address. */
+ arelent **rel_vma = rel_mid;
+ for (rel_mid--;
+ rel_mid >= rel_low && rel_mid[0]->address == vma;
+ rel_mid--)
+ rel_vma = rel_mid;
+
+ for (; rel_vma <= rel_high && rel_vma[0]->address == vma;
+ rel_vma++)
+ {
+ rel = *rel_vma;
+ if (rel->sym_ptr_ptr != NULL
+ && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section))
+ {
+ if (place != NULL)
+ * place = thisplace;
+ return * rel->sym_ptr_ptr;
+ }
+ }
+ break;
}
- /* We are scanning backwards, so if we go below the target address
- we have failed. */
- if (rel_pp[rel_count]->address < vma)
+ if (vma < rel->address)
+ rel_high = rel_mid;
+ else if (vma >= rel_mid[1]->address)
+ rel_low = rel_mid + 1;
+ else
break;
}
}
bfd_vma secaddr;
(*inf->fprintf_func) (inf->stream, " <%s",
- bfd_get_section_name (abfd, sec));
+ sanitize_string (bfd_get_section_name (abfd, sec)));
secaddr = bfd_get_section_vma (abfd, sec);
if (vma < secaddr)
{
return;
if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset,
- &filename, &functionname,
- &linenumber, &discriminator))
+ &filename, &functionname,
+ &linenumber, &discriminator))
return;
if (filename != NULL && *filename == '\0')
if (functionname != NULL
&& (prev_functionname == NULL
|| strcmp (functionname, prev_functionname) != 0))
- printf ("%s():\n", functionname);
- if (linenumber > 0 && (linenumber != prev_line ||
- (discriminator != prev_discriminator)))
- {
- if (discriminator > 0)
- printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename,
- linenumber, discriminator);
- else
- printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
- }
+ {
+ printf ("%s():\n", sanitize_string (functionname));
+ prev_line = -1;
+ }
+ if (linenumber > 0
+ && (linenumber != prev_line
+ || discriminator != prev_discriminator))
+ {
+ if (discriminator > 0)
+ printf ("%s:%u (discriminator %u)\n",
+ filename == NULL ? "???" : sanitize_string (filename),
+ linenumber, discriminator);
+ else
+ printf ("%s:%u\n", filename == NULL
+ ? "???" : sanitize_string (filename),
+ linenumber);
+ }
if (unwind_inlines)
{
const char *filename2;
while (bfd_find_inliner_info (abfd, &filename2, &functionname2,
&line2))
- printf ("inlined by %s:%u (%s)\n", filename2, line2,
- functionname2);
+ {
+ printf ("inlined by %s:%u",
+ sanitize_string (filename2), line2);
+ printf (" (%s)\n", sanitize_string (functionname2));
+ }
}
}
inf->stream = &sfile;
inf->bytes_per_line = 0;
inf->bytes_per_chunk = 0;
- inf->flags = disassemble_all ? DISASSEMBLE_DATA : 0;
+ inf->flags = ((disassemble_all ? DISASSEMBLE_DATA : 0)
+ | (wide_output ? WIDE_OUTPUT : 0));
if (machine)
inf->flags |= USER_SPECIFIED_MACHINE_TYPE;
disassembling code of course, and when -D is in effect. */
inf->stop_vma = section->vma + stop_offset;
+ inf->stop_offset = stop_offset;
octets = (*disassemble_fn) (section->vma + addr_offset, inf);
inf->stop_vma = 0;
for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
{
- int k;
-
- if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
- {
- for (k = bpc - 1; k >= 0; k--)
- printf ("%02x", (unsigned) data[j + k]);
- putchar (' ');
- }
- else
+ /* PR 21580: Check for a buffer ending early. */
+ if (j + bpc <= stop_offset * opb)
{
- for (k = 0; k < bpc; k++)
- printf ("%02x", (unsigned) data[j + k]);
- putchar (' ');
+ int k;
+
+ if (inf->display_endian == BFD_ENDIAN_LITTLE)
+ {
+ for (k = bpc - 1; k >= 0; k--)
+ printf ("%02x", (unsigned) data[j + k]);
+ }
+ else
+ {
+ for (k = 0; k < bpc; k++)
+ printf ("%02x", (unsigned) data[j + k]);
+ }
}
+ putchar (' ');
}
for (; pb < octets_per_line; pb += bpc)
pb = octets;
for (; j < addr_offset * opb + pb; j += bpc)
{
- int k;
-
- if (bpc > 1 && inf->display_endian == BFD_ENDIAN_LITTLE)
+ /* PR 21619: Check for a buffer ending early. */
+ if (j + bpc <= stop_offset * opb)
{
- for (k = bpc - 1; k >= 0; k--)
- printf ("%02x", (unsigned) data[j + k]);
- putchar (' ');
- }
- else
- {
- for (k = 0; k < bpc; k++)
- printf ("%02x", (unsigned) data[j + k]);
- putchar (' ');
+ int k;
+
+ if (inf->display_endian == BFD_ENDIAN_LITTLE)
+ {
+ for (k = bpc - 1; k >= 0; k--)
+ printf ("%02x", (unsigned) data[j + k]);
+ }
+ else
+ {
+ for (k = 0; k < bpc; k++)
+ printf ("%02x", (unsigned) data[j + k]);
+ }
}
+ putchar (' ');
}
}
}
sym_name = bfd_get_section_name (aux->abfd, sym_sec);
if (sym_name == NULL || *sym_name == '\0')
sym_name = "*unknown*";
- printf ("%s", sym_name);
+ printf ("%s", sanitize_string (sym_name));
}
}
long rel_count;
bfd_vma rel_offset;
unsigned long addr_offset;
+ bfd_boolean do_print;
+ enum loop_control
+ {
+ stop_offset_reached,
+ function_sym,
+ next_sym
+ } loop_until;
/* Sections that do not contain machine
code are not normally disassembled. */
}
rel_ppend = rel_pp + rel_count;
- data = (bfd_byte *) xmalloc (datasize);
-
- if (!bfd_get_section_contents (abfd, section, data, 0, datasize))
+ if (!bfd_malloc_and_get_section (abfd, section, &data))
{
non_fatal (_("Reading section %s failed because: %s"),
section->name, bfd_errmsg (bfd_get_error ()));
&& (*rel_pp)->address < rel_offset + addr_offset)
++rel_pp;
- printf (_("\nDisassembly of section %s:\n"), section->name);
+ printf (_("\nDisassembly of section %s:\n"), sanitize_string (section->name));
/* Find the nearest symbol forwards from our current position. */
paux->require_sec = TRUE;
the symbol we have just found. Then print the symbol and find the
next symbol on. Repeat until we have disassembled the entire section
or we have reached the end of the address range we are interested in. */
+ do_print = paux->symbol == NULL;
+ loop_until = stop_offset_reached;
+
while (addr_offset < stop_offset)
{
bfd_vma addr;
pinfo->symtab_pos = -1;
}
- if (! prefix_addresses)
+ /* If we are only disassembling from a specific symbol,
+ check to see if we should start or stop displaying. */
+ if (sym && paux->symbol)
+ {
+ if (do_print)
+ {
+ /* See if we should stop printing. */
+ switch (loop_until)
+ {
+ case function_sym:
+ if (sym->flags & BSF_FUNCTION)
+ do_print = FALSE;
+ break;
+
+ case stop_offset_reached:
+ /* Handled by the while loop. */
+ break;
+
+ case next_sym:
+ /* FIXME: There is an implicit assumption here
+ that the name of sym is different from
+ paux->symbol. */
+ if (! bfd_is_local_label (abfd, sym))
+ do_print = FALSE;
+ break;
+ }
+ }
+ else
+ {
+ const char * name = bfd_asymbol_name (sym);
+ char * alloc = NULL;
+
+ if (do_demangle && name[0] != '\0')
+ {
+ /* Demangle the name. */
+ alloc = bfd_demangle (abfd, name, demangle_flags);
+ if (alloc != NULL)
+ name = alloc;
+ }
+
+ /* We are not currently printing. Check to see
+ if the current symbol matches the requested symbol. */
+ if (streq (name, paux->symbol))
+ {
+ do_print = TRUE;
+
+ if (sym->flags & BSF_FUNCTION)
+ {
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && ((elf_symbol_type *) sym)->internal_elf_sym.st_size > 0)
+ {
+ /* Sym is a function symbol with a size associated
+ with it. Turn on automatic disassembly for the
+ next VALUE bytes. */
+ stop_offset = addr_offset
+ + ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
+ loop_until = stop_offset_reached;
+ }
+ else
+ {
+ /* Otherwise we need to tell the loop heuristic to
+ loop until the next function symbol is encountered. */
+ loop_until = function_sym;
+ }
+ }
+ else
+ {
+ /* Otherwise loop until the next symbol is encountered. */
+ loop_until = next_sym;
+ }
+ }
+
+ free (alloc);
+ }
+ }
+
+ if (! prefix_addresses && do_print)
{
pinfo->fprintf_func (pinfo->stream, "\n");
objdump_print_addr_with_sym (abfd, section, sym, addr,
else
{
#define is_valid_next_sym(SYM) \
- ((SYM)->section == section \
+ (strcmp (bfd_section_name (abfd, (SYM)->section), bfd_section_name (abfd, section)) == 0 \
&& (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
&& pinfo->symbol_is_valid (SYM, pinfo))
else
insns = FALSE;
- disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
- addr_offset, nextstop_offset,
- rel_offset, &rel_pp, rel_ppend);
+ if (do_print)
+ disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
+ addr_offset, nextstop_offset,
+ rel_offset, &rel_pp, rel_ppend);
addr_offset = nextstop_offset;
sym = nextsym;
aux.dynrelbuf = NULL;
aux.dynrelcount = 0;
aux.reloc = NULL;
+ aux.symbol = disasm_sym;
disasm_info.print_address_func = objdump_print_address;
disasm_info.symbol_at_address_func = objdump_symbol_at_address;
}
/* Use libopcodes to locate a suitable disassembler. */
- aux.disassemble_fn = disassembler (abfd);
+ aux.disassemble_fn = disassembler (bfd_get_arch (abfd),
+ bfd_big_endian (abfd),
+ bfd_get_mach (abfd), abfd);
if (!aux.disassemble_fn)
{
non_fatal (_("can't disassemble for architecture %s\n"),
free (sorted_syms);
}
\f
-static int
+static bfd_boolean
load_specific_debug_section (enum dwarf_section_display_enum debug,
asection *sec, void *file)
{
struct dwarf_section *section = &debug_displays [debug].section;
bfd *abfd = (bfd *) file;
- bfd_boolean ret;
+ bfd_byte *contents;
+ bfd_size_type amt;
+ size_t alloced;
- /* If it is already loaded, do nothing. */
if (section->start != NULL)
- return 1;
+ {
+ /* If it is already loaded, do nothing. */
+ if (streq (section->filename, bfd_get_filename (abfd)))
+ return TRUE;
+ free (section->start);
+ }
+ section->filename = bfd_get_filename (abfd);
section->reloc_info = NULL;
section->num_relocs = 0;
section->address = bfd_get_section_vma (abfd, sec);
- section->size = bfd_get_section_size (sec);
- section->start = NULL;
section->user_data = sec;
- ret = bfd_get_full_section_contents (abfd, sec, §ion->start);
-
- if (! ret)
+ section->size = bfd_get_section_size (sec);
+ /* PR 24360: On 32-bit hosts sizeof (size_t) < sizeof (bfd_size_type). */
+ alloced = amt = section->size + 1;
+ if (alloced != amt || alloced == 0)
+ {
+ section->start = NULL;
+ free_debug_section (debug);
+ printf (_("\nSection '%s' has an invalid size: %#llx.\n"),
+ sanitize_string (section->name),
+ (unsigned long long) section->size);
+ return FALSE;
+ }
+ section->start = contents = malloc (alloced);
+ if (section->start == NULL
+ || !bfd_get_full_section_contents (abfd, sec, &contents))
{
free_debug_section (debug);
printf (_("\nCan't get contents for section '%s'.\n"),
- section->name);
- return 0;
+ sanitize_string (section->name));
+ return FALSE;
}
+ /* Ensure any string section has a terminating NUL. */
+ section->start[section->size] = 0;
if (is_relocatable && debug_displays [debug].relocate)
{
+ long reloc_size;
+ bfd_boolean ret;
+
bfd_cache_section_contents (sec, section->start);
ret = bfd_simple_get_relocated_section_contents (abfd,
{
free_debug_section (debug);
printf (_("\nCan't get contents for section '%s'.\n"),
- section->name);
- return 0;
+ sanitize_string (section->name));
+ return FALSE;
}
- long reloc_size;
-
reloc_size = bfd_get_reloc_upper_bound (abfd, sec);
if (reloc_size > 0)
{
}
}
- return 1;
+ return TRUE;
}
bfd_boolean
return FALSE;
}
-int
+bfd_boolean
load_debug_section (enum dwarf_section_display_enum debug, void *file)
{
struct dwarf_section *section = &debug_displays [debug].section;
/* If it is already loaded, do nothing. */
if (section->start != NULL)
- return 1;
+ {
+ if (streq (section->filename, bfd_get_filename (abfd)))
+ return TRUE;
+ }
/* Locate the debug section. */
sec = bfd_get_section_by_name (abfd, section->uncompressed_name);
section->name = section->compressed_name;
}
if (sec == NULL)
- return 0;
+ return FALSE;
return load_specific_debug_section (debug, sec, file);
}
section->size = 0;
}
+void
+close_debug_file (void * file)
+{
+ bfd * abfd = (bfd *) file;
+
+ bfd_close (abfd);
+}
+
+void *
+open_debug_file (const char * pathname)
+{
+ bfd * data;
+
+ data = bfd_openr (pathname, NULL);
+ if (data == NULL)
+ return NULL;
+
+ if (! bfd_check_format (data, bfd_object))
+ return NULL;
+
+ return data;
+}
+
static void
dump_dwarf_section (bfd *abfd, asection *section,
void *arg ATTRIBUTE_UNUSED)
static void
dump_dwarf (bfd *abfd)
{
- is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
-
- eh_addr_size = bfd_arch_bits_per_address (abfd) / 8;
-
- if (bfd_big_endian (abfd))
- byte_get = byte_get_big_endian;
- else if (bfd_little_endian (abfd))
- byte_get = byte_get_little_endian;
- else
- /* PR 17512: file: objdump-s-endless-loop.tekhex. */
+ /* The byte_get pointer should have been set at the start of dump_bfd(). */
+ if (byte_get == NULL)
{
warn (_("File %s does not contain any dwarf debug information\n"),
bfd_get_filename (abfd));
return;
}
+ is_relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
+
+ eh_addr_size = bfd_arch_bits_per_address (abfd) / 8;
+
switch (bfd_get_arch (abfd))
{
case bfd_arch_i386:
init_dwarf_regnames_s390 ();
break;
+ case bfd_arch_riscv:
+ init_dwarf_regnames_riscv ();
+ break;
+
+ case bfd_arch_s12z:
+ /* S12Z has a 24 bit address space. But the only known
+ producer of dwarf_info encodes addresses into 32 bits. */
+ eh_addr_size = 4;
+ break;
+
default:
break;
}
bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
-
- free_debug_memory ();
}
\f
/* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
it. Return NULL on failure. */
-static char *
-read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
+static bfd_byte *
+read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr,
+ bfd_size_type *entsize_ptr)
{
asection *stabsect;
- bfd_size_type size;
- char *contents;
+ bfd_byte *contents;
stabsect = bfd_get_section_by_name (abfd, sect_name);
if (stabsect == NULL)
{
- printf (_("No %s section present\n\n"), sect_name);
+ printf (_("No %s section present\n\n"),
+ sanitize_string (sect_name));
return FALSE;
}
- size = bfd_section_size (abfd, stabsect);
- contents = (char *) xmalloc (size);
-
- if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
+ if (!bfd_malloc_and_get_section (abfd, stabsect, &contents))
{
non_fatal (_("reading %s section of %s failed: %s"),
sect_name, bfd_get_filename (abfd),
return NULL;
}
- *size_ptr = size;
+ *size_ptr = bfd_section_size (abfd, stabsect);
+ if (entsize_ptr)
+ *entsize_ptr = stabsect->entsize;
return contents;
}
stabp = stabs;
stabs_end = stabp + stab_size;
- printf (_("Contents of %s section:\n\n"), stabsect_name);
+ printf (_("Contents of %s section:\n\n"), sanitize_string (stabsect_name));
printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
/* Loop through all symbols and print them.
again (makes consistent formatting for tools like awk). */
name = bfd_get_stab_name (type);
if (name != NULL)
- printf ("%-6s", name);
+ printf ("%-6s", sanitize_string (name));
else if (type == N_UNDF)
printf ("HdrSym");
else
/* Using the (possibly updated) string table offset, print the
string (if any) associated with this symbol. */
if (amt < stabstr_size)
- /* PR 17512: file: 079-79389-0.001:0.1. */
+ /* PR 17512: file: 079-79389-0.001:0.1.
+ FIXME: May need to sanitize this string before displaying. */
printf (" %.*s", (int)(stabstr_size - amt), strtab + amt);
else
printf (" *");
{
if (strtab == NULL)
strtab = read_section_stabs (abfd, sought->string_section_name,
- &stabstr_size);
+ &stabstr_size, NULL);
if (strtab)
{
- stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
- &stab_size);
+ stabs = read_section_stabs (abfd, section->name, &stab_size, NULL);
if (stabs)
print_section_stabs (abfd, section->name, &sought->string_offset);
}
bfd_printf_vma (abfd, abfd->start_address);
printf ("\n");
}
+\f
+
+/* Formatting callback function passed to ctf_dump. Returns either the pointer
+ it is passed, or a pointer to newly-allocated storage, in which case
+ dump_ctf() will free it when it no longer needs it. */
+
+static char *
+dump_ctf_indent_lines (ctf_sect_names_t sect ATTRIBUTE_UNUSED,
+ char *s, void *arg)
+{
+ const char *blanks = arg;
+ char *new_s;
+
+ if (asprintf (&new_s, "%s%s", blanks, s) < 0)
+ return s;
+ return new_s;
+}
+
+/* Make a ctfsect suitable for ctf_bfdopen_ctfsect(). */
+static ctf_sect_t
+make_ctfsect (const char *name, bfd_byte *data,
+ bfd_size_type size)
+{
+ ctf_sect_t ctfsect;
+
+ ctfsect.cts_name = name;
+ ctfsect.cts_entsize = 1;
+ ctfsect.cts_size = size;
+ ctfsect.cts_data = data;
+
+ return ctfsect;
+}
+
+/* Dump one CTF archive member. */
+
+static int
+dump_ctf_archive_member (ctf_file_t *ctf, const char *name, void *arg)
+{
+ ctf_file_t *parent = (ctf_file_t *) arg;
+ const char *things[] = {"Labels", "Data objects", "Function objects",
+ "Variables", "Types", "Strings", ""};
+ const char **thing;
+ size_t i;
+
+ /* Only print out the name of non-default-named archive members.
+ The name .ctf appears everywhere, even for things that aren't
+ really archives, so printing it out is liable to be confusing. */
+ if (strcmp (name, ".ctf") != 0)
+ printf (_("\nCTF archive member: %s:\n"), sanitize_string (name));
+
+ ctf_import (ctf, parent);
+ for (i = 1, thing = things; *thing[0]; thing++, i++)
+ {
+ ctf_dump_state_t *s = NULL;
+ char *item;
+
+ printf ("\n %s:\n", *thing);
+ while ((item = ctf_dump (ctf, &s, i, dump_ctf_indent_lines,
+ (void *) " ")) != NULL)
+ {
+ printf ("%s\n", item);
+ free (item);
+ }
+
+ if (ctf_errno (ctf))
+ {
+ non_fatal (_("Iteration failed: %s, %s\n"), *thing,
+ ctf_errmsg (ctf_errno (ctf)));
+ break;
+ }
+ }
+ return 0;
+}
+
+/* Dump the CTF debugging information. */
+
+static void
+dump_ctf (bfd *abfd, const char *sect_name, const char *parent_name)
+{
+ ctf_archive_t *ctfa, *parenta = NULL;
+ bfd_byte *ctfdata, *parentdata = NULL;
+ bfd_size_type ctfsize, parentsize;
+ ctf_sect_t ctfsect;
+ ctf_file_t *parent = NULL;
+ int err;
+
+ if ((ctfdata = read_section_stabs (abfd, sect_name, &ctfsize, NULL)) == NULL)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ if (parent_name
+ && (parentdata = read_section_stabs (abfd, parent_name, &parentsize,
+ NULL)) == NULL)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ /* Load the CTF file and dump it. */
+
+ ctfsect = make_ctfsect (sect_name, ctfdata, ctfsize);
+ if ((ctfa = ctf_bfdopen_ctfsect (abfd, &ctfsect, &err)) == NULL)
+ {
+ non_fatal (_("CTF open failure: %s\n"), ctf_errmsg (err));
+ bfd_fatal (bfd_get_filename (abfd));
+ }
+
+ if (parentdata)
+ {
+ ctfsect = make_ctfsect (parent_name, parentdata, parentsize);
+ if ((parenta = ctf_bfdopen_ctfsect (abfd, &ctfsect, &err)) == NULL)
+ {
+ non_fatal (_("CTF open failure: %s\n"), ctf_errmsg (err));
+ bfd_fatal (bfd_get_filename (abfd));
+ }
+
+ /* Assume that the applicable parent archive member is the default one.
+ (This is what all known implementations are expected to do, if they
+ put CTFs and their parents in archives together.) */
+ if ((parent = ctf_arc_open_by_name (parenta, NULL, &err)) == NULL)
+ {
+ non_fatal (_("CTF open failure: %s\n"), ctf_errmsg (err));
+ bfd_fatal (bfd_get_filename (abfd));
+ }
+ }
+
+ printf (_("Contents of CTF section %s:\n"), sanitize_string (sect_name));
+
+ ctf_archive_iter (ctfa, dump_ctf_archive_member, parent);
+ ctf_file_close (parent);
+ ctf_close (ctfa);
+ ctf_close (parenta);
+ free (parentdata);
+ free (ctfdata);
+}
\f
static void
dump_bfd_private_header (bfd *abfd)
{
- bfd_print_private_bfd_data (abfd, stdout);
+ if (!bfd_print_private_bfd_data (abfd, stdout))
+ non_fatal (_("warning: private headers incomplete: %s"),
+ bfd_errmsg (bfd_get_error ()));
}
static void
static void
dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
{
- bfd_byte *data = 0;
+ bfd_byte *data = NULL;
bfd_size_type datasize;
bfd_vma addr_offset;
bfd_vma start_offset;
if (start_offset >= stop_offset)
return;
- printf (_("Contents of section %s:"), section->name);
+ printf (_("Contents of section %s:"), sanitize_string (section->name));
if (display_file_offsets)
printf (_(" (Starting at file offset: 0x%lx)"),
(unsigned long) (section->filepos + start_offset));
/* If we want to demangle the name, we demangle it
here, and temporarily clobber it while calling
bfd_print_symbol. FIXME: This is a gross hack. */
- alloc = bfd_demangle (cur_bfd, name, DMGL_ANSI | DMGL_PARAMS);
+ alloc = bfd_demangle (cur_bfd, name, demangle_flags);
if (alloc != NULL)
(*current)->name = alloc;
bfd_print_symbol (cur_bfd, stdout, *current,
&& (last_functionname == NULL
|| strcmp (functionname, last_functionname) != 0))
{
- printf ("%s():\n", functionname);
+ printf ("%s():\n", sanitize_string (functionname));
if (last_functionname != NULL)
free (last_functionname);
last_functionname = xstrdup (functionname);
|| (discriminator != last_discriminator)))
{
if (discriminator > 0)
- printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
+ printf ("%s:%u\n", filename == NULL ? "???" :
+ sanitize_string (filename), linenumber);
else
- printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename,
+ printf ("%s:%u (discriminator %u)\n",
+ filename == NULL ? "???" : sanitize_string (filename),
linenumber, discriminator);
last_line = linenumber;
last_discriminator = discriminator;
{
if (section_name == NULL)
section_name = "*unknown*";
- printf ("[%s]", section_name);
+ printf ("[%s]", sanitize_string (section_name));
}
if (q->addend)
asection *section,
void *dummy ATTRIBUTE_UNUSED)
{
- arelent **relpp;
+ arelent **relpp = NULL;
long relcount;
long relsize;
|| ((section->flags & SEC_RELOC) == 0))
return;
- relsize = bfd_get_reloc_upper_bound (abfd, section);
- if (relsize < 0)
- bfd_fatal (bfd_get_filename (abfd));
-
- printf ("RELOCATION RECORDS FOR [%s]:", section->name);
+ printf ("RELOCATION RECORDS FOR [%s]:", sanitize_string (section->name));
+ relsize = bfd_get_reloc_upper_bound (abfd, section);
if (relsize == 0)
{
printf (" (none)\n\n");
return;
}
- relpp = (arelent **) xmalloc (relsize);
- relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
+ if (relsize < 0)
+ relcount = relsize;
+ else
+ {
+ relpp = (arelent **) xmalloc (relsize);
+ relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
+ }
if (relcount < 0)
{
printf ("\n");
- non_fatal (_("failed to read relocs in: %s"), bfd_get_filename (abfd));
+ non_fatal (_("failed to read relocs in: %s"),
+ sanitize_string (bfd_get_filename (abfd)));
bfd_fatal (_("error message was"));
}
else if (relcount == 0)
}
}
+/* Return the sign-extended form of an ARCH_SIZE sized VMA. */
+
+static bfd_vma
+sign_extend_address (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_vma vma,
+ unsigned arch_size)
+{
+ bfd_vma mask;
+ mask = (bfd_vma) 1 << (arch_size - 1);
+ return (((vma & ((mask << 1) - 1)) ^ mask) - mask);
+}
+
/* Dump selected contents of ABFD. */
static void
-dump_bfd (bfd *abfd)
+dump_bfd (bfd *abfd, bfd_boolean is_mainfile)
{
+ const struct elf_backend_data * bed;
+
+ if (bfd_big_endian (abfd))
+ byte_get = byte_get_big_endian;
+ else if (bfd_little_endian (abfd))
+ byte_get = byte_get_little_endian;
+ else
+ byte_get = NULL;
+
+ /* Load any separate debug information files.
+ We do this now and without checking do_follow_links because separate
+ debug info files may contain symbol tables that we will need when
+ displaying information about the main file. Any memory allocated by
+ load_separate_debug_files will be released when we call
+ free_debug_memory below.
+
+ The test on is_mainfile is there because the chain of separate debug
+ info files is a global variable shared by all invocations of dump_bfd. */
+ if (is_mainfile)
+ {
+ load_separate_debug_files (abfd, bfd_get_filename (abfd));
+
+ /* If asked to do so, recursively dump the separate files. */
+ if (do_follow_links)
+ {
+ separate_info * i;
+
+ for (i = first_separate_info; i != NULL; i = i->next)
+ dump_bfd (i->handle, FALSE);
+ }
+ }
+
+ /* Adjust user-specified start and stop limits for targets that use
+ signed addresses. */
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && (bed = get_elf_backend_data (abfd)) != NULL
+ && bed->sign_extend_vma)
+ {
+ start_address = sign_extend_address (abfd, start_address,
+ bed->s->arch_size);
+ stop_address = sign_extend_address (abfd, stop_address,
+ bed->s->arch_size);
+ }
+
/* If we are adjusting section VMA's, change them all now. Changing
the BFD information is a hack. However, we must do it, or
bfd_find_nearest_line will not do the right thing. */
}
if (! dump_debugging_tags && ! suppress_bfd_header)
- printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
+ printf (_("\n%s: file format %s\n"),
+ sanitize_string (bfd_get_filename (abfd)),
abfd->xvec->name);
if (dump_ar_hdrs)
- print_arelt_descr (stdout, abfd, TRUE);
+ print_arelt_descr (stdout, abfd, TRUE, FALSE);
if (dump_file_header)
dump_bfd_header (abfd);
if (dump_private_headers)
|| disassemble
|| dump_debugging
|| dump_dwarf_section_info)
- syms = slurp_symtab (abfd);
+ {
+ syms = slurp_symtab (abfd);
+
+ /* If following links, load any symbol tables from the linked files as well. */
+ if (do_follow_links && is_mainfile)
+ {
+ separate_info * i;
+
+ for (i = first_separate_info; i != NULL; i = i->next)
+ {
+ asymbol ** extra_syms;
+ long old_symcount = symcount;
+
+ extra_syms = slurp_symtab (i->handle);
+
+ if (extra_syms)
+ {
+ if (old_symcount == 0)
+ {
+ syms = extra_syms;
+ }
+ else
+ {
+ syms = xrealloc (syms, (symcount + old_symcount) * sizeof (asymbol *));
+ memcpy (syms + old_symcount,
+ extra_syms,
+ symcount * sizeof (asymbol *));
+ }
+ }
+
+ symcount += old_symcount;
+ }
+ }
+ }
if (dump_section_headers)
dump_headers (abfd);
if (dump_dynamic_symtab || dump_dynamic_reloc_info
|| (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
dynsyms = slurp_dynamic_symtab (abfd);
+
if (disassemble)
{
synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
dump_symbols (abfd, TRUE);
if (dump_dwarf_section_info)
dump_dwarf (abfd);
+ if (dump_ctf_section_info)
+ dump_ctf (abfd, dump_ctf_section_name, dump_ctf_parent_name);
if (dump_stab_section_info)
dump_stabs (abfd);
if (dump_reloc_info && ! disassemble)
bfd_get_filename (abfd));
exit_status = 1;
}
+
+ free (dhandle);
}
- /* PR 6483: If there was no STABS or IEEE debug
- info in the file, try DWARF instead. */
+ /* PR 6483: If there was no STABS debug info in the file, try
+ DWARF instead. */
else if (! dump_dwarf_section_info)
{
dwarf_select_sections_all ();
symcount = 0;
dynsymcount = 0;
synthcount = 0;
+
+ if (is_mainfile)
+ free_debug_memory ();
}
static void
if (bfd_check_format_matches (abfd, bfd_object, &matching))
{
- dump_bfd (abfd);
+ dump_bfd (abfd, TRUE);
return;
}
if (bfd_check_format_matches (abfd, bfd_core, &matching))
{
- dump_bfd (abfd);
+ dump_bfd (abfd, TRUE);
return;
}
bfd *last_arfile = NULL;
if (level == 0)
- printf (_("In archive %s:\n"), bfd_get_filename (file));
+ printf (_("In archive %s:\n"), sanitize_string (bfd_get_filename (file)));
else if (level > 100)
{
/* Prevent corrupted files from spinning us into an
return;
}
else
- printf (_("In nested archive %s:\n"), bfd_get_filename (file));
+ printf (_("In nested archive %s:\n"),
+ sanitize_string (bfd_get_filename (file)));
for (;;)
{
expandargv (&argc, &argv);
- bfd_init ();
+ if (bfd_init () != BFD_INIT_MAGIC)
+ fatal (_("fatal error: libbfd ABI mismatch"));
set_default_bfd_target ();
while ((c = getopt_long (argc, argv,
cplus_demangle_set_style (style);
}
break;
+ case OPTION_RECURSE_LIMIT:
+ demangle_flags &= ~ DMGL_NO_RECURSE_LIMIT;
+ break;
+ case OPTION_NO_RECURSE_LIMIT:
+ demangle_flags |= DMGL_NO_RECURSE_LIMIT;
+ break;
case 'w':
do_wide = wide_output = TRUE;
break;
case 'd':
disassemble = TRUE;
seenflag = TRUE;
+ disasm_sym = optarg;
break;
case 'z':
disassemble_zeroes = TRUE;
case OPTION_DWARF_CHECK:
dwarf_check = TRUE;
break;
+ case OPTION_CTF:
+ dump_ctf_section_info = TRUE;
+ dump_ctf_section_name = xstrdup (optarg);
+ seenflag = TRUE;
+ break;
+ case OPTION_CTF_PARENT:
+ dump_ctf_parent_name = xstrdup (optarg);
+ break;
case 'G':
dump_stab_section_info = TRUE;
seenflag = TRUE;
}
free_only_list ();
+ free (dump_ctf_section_name);
+ free (dump_ctf_parent_name);
END_PROGRESS (program_name);
projects / deliverable / binutils-gdb.git / blobdiff