X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=binutils%2Fobjcopy.c;h=1d29059b8df90eebab2dc9ec99ff1796f7ff2a3b;hb=285e3f99c77510344021b1252c594b28fe7971e8;hp=51ea732fc6c262a1099f957ff95ea357133c14e7;hpb=8b6efd89a4135971b748c958a852d093b3d79d3d;p=deliverable%2Fbinutils-gdb.git diff --git a/binutils/objcopy.c b/binutils/objcopy.c index 51ea732fc6..1d29059b8d 100644 --- a/binutils/objcopy.c +++ b/binutils/objcopy.c @@ -1,7 +1,5 @@ /* objcopy.c -- copy object file from input to output, optionally massaging it. - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 - Free Software Foundation, Inc. + Copyright (C) 1991-2018 Free Software Foundation, Inc. This file is part of GNU Binutils. @@ -30,10 +28,9 @@ #include "filenames.h" #include "fnmatch.h" #include "elf-bfd.h" -#include -#include "libbfd.h" #include "coff/internal.h" #include "libcoff.h" +#include "safe-ctype.h" /* FIXME: See bfd/peXXigen.c for why we include an architecture specific header in generic PE code. */ @@ -53,16 +50,25 @@ static short pe_minor_subsystem_version = -1; struct is_specified_symbol_predicate_data { - const char *name; + const char * name; bfd_boolean found; }; -/* A list to support redefine_sym. */ +/* A node includes symbol name mapping to support redefine_sym. */ struct redefine_node { char *source; char *target; - struct redefine_node *next; +}; + +struct addsym_node +{ + struct addsym_node *next; + char * symdef; + long symval; + flagword flags; + char * section; + char * othersym; }; typedef struct section_rename @@ -87,52 +93,59 @@ static int copy_width = 1; static bfd_boolean verbose; /* Print file and target names. */ static bfd_boolean preserve_dates; /* Preserve input file timestamp. */ -static int status = 0; /* Exit status. */ +static int deterministic = -1; /* Enable deterministic archives. */ +static int status = 0; /* Exit status. */ + +static bfd_boolean merge_notes = FALSE; /* Merge note sections. */ +static bfd_byte * merged_notes = NULL; /* Contents on note section undergoing a merge. */ +static bfd_size_type merged_size = 0; /* New, smaller size of the merged note section. */ enum strip_action - { - STRIP_UNDEF, - STRIP_NONE, /* Don't strip. */ - STRIP_DEBUG, /* Strip all debugger symbols. */ - STRIP_UNNEEDED, /* Strip unnecessary symbols. */ - STRIP_NONDEBUG, /* Strip everything but debug info. */ - STRIP_ALL /* Strip all symbols. */ - }; +{ + STRIP_UNDEF, + STRIP_NONE, /* Don't strip. */ + STRIP_DEBUG, /* Strip all debugger symbols. */ + STRIP_UNNEEDED, /* Strip unnecessary symbols. */ + STRIP_NONDEBUG, /* Strip everything but debug info. */ + STRIP_DWO, /* Strip all DWO info. */ + STRIP_NONDWO, /* Strip everything but DWO info. */ + STRIP_ALL /* Strip all symbols. */ +}; /* Which symbols to remove. */ -static enum strip_action strip_symbols; +static enum strip_action strip_symbols = STRIP_UNDEF; enum locals_action - { - LOCALS_UNDEF, - LOCALS_START_L, /* Discard locals starting with L. */ - LOCALS_ALL /* Discard all locals. */ - }; +{ + LOCALS_UNDEF, + LOCALS_START_L, /* Discard locals starting with L. */ + LOCALS_ALL /* Discard all locals. */ +}; /* Which local symbols to remove. Overrides STRIP_ALL. */ static enum locals_action discard_locals; -/* What kind of change to perform. */ -enum change_action -{ - CHANGE_IGNORE, - CHANGE_MODIFY, - CHANGE_SET -}; - /* Structure used to hold lists of sections and actions to take. */ struct section_list { struct section_list * next; /* Next section to change. */ - const char * name; /* Section name. */ + const char * pattern; /* Section name pattern. */ bfd_boolean used; /* Whether this entry was used. */ - bfd_boolean remove; /* Whether to remove this section. */ - bfd_boolean copy; /* Whether to copy this section. */ - enum change_action change_vma;/* Whether to change or set VMA. */ + + unsigned int context; /* What to do with matching sections. */ + /* Flag bits used in the context field. + COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */ +#define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */ +#define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */ +#define SECTION_CONTEXT_SET_VMA (1 << 2) /* Set the sections' VMA address. */ +#define SECTION_CONTEXT_ALTER_VMA (1 << 3) /* Increment or decrement the section's VMA address. */ +#define SECTION_CONTEXT_SET_LMA (1 << 4) /* Set the sections' LMA address. */ +#define SECTION_CONTEXT_ALTER_LMA (1 << 5) /* Increment or decrement the section's LMA address. */ +#define SECTION_CONTEXT_SET_FLAGS (1 << 6) /* Set the section's flags. */ +#define SECTION_CONTEXT_REMOVE_RELOCS (1 << 7) /* Remove relocations for this section. */ + bfd_vma vma_val; /* Amount to change by or set to. */ - enum change_action change_lma;/* Whether to change or set LMA. */ bfd_vma lma_val; /* Amount to change by or set to. */ - bfd_boolean set_flags; /* Whether to set the section flags. */ flagword flags; /* What to set the section flags to. */ }; @@ -187,6 +200,12 @@ struct section_add /* List of sections to add to the output BFD. */ static struct section_add *add_sections; +/* List of sections to update in the output BFD. */ +static struct section_add *update_sections; + +/* List of sections to dump from the output BFD. */ +static struct section_add *dump_sections; + /* If non-NULL the argument to --add-gnu-debuglink. This should be the filename to store in the .gnu_debuglink section. */ static const char * gnu_debuglink_filename = NULL; @@ -197,11 +216,17 @@ static bfd_boolean convert_debugging = FALSE; /* Whether to compress/decompress DWARF debug sections. */ static enum { - nothing, - compress, - decompress + nothing = 0, + compress = 1 << 0, + compress_zlib = compress | 1 << 1, + compress_gnu_zlib = compress | 1 << 2, + compress_gabi_zlib = compress | 1 << 3, + decompress = 1 << 4 } do_debug_sections = nothing; +/* Whether to generate ELF common symbols with the STT_COMMON type. */ +static enum bfd_link_elf_stt_common do_elf_stt_common = unchanged; + /* Whether to change the leading character in symbol names. */ static bfd_boolean change_leading_char = FALSE; @@ -223,7 +248,18 @@ static htab_t localize_specific_htab = NULL; static htab_t globalize_specific_htab = NULL; static htab_t keepglobal_specific_htab = NULL; static htab_t weaken_specific_htab = NULL; -static struct redefine_node *redefine_sym_list = NULL; +static htab_t redefine_specific_htab = NULL; +static htab_t redefine_specific_reverse_htab = NULL; +static struct addsym_node *add_sym_list = NULL, **add_sym_tail = &add_sym_list; +static int add_symbols = 0; + +static char *strip_specific_buffer = NULL; +static char *strip_unneeded_buffer = NULL; +static char *keep_specific_buffer = NULL; +static char *localize_specific_buffer = NULL; +static char *globalize_specific_buffer = NULL; +static char *keepglobal_specific_buffer = NULL; +static char *weaken_specific_buffer = NULL; /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */ static bfd_boolean weaken = FALSE; @@ -246,11 +282,11 @@ static int reverse_bytes = 0; /* For Coff objects, we may want to allow or disallow long section names, or preserve them where found in the inputs. Debug info relies on them. */ enum long_section_name_handling - { - DISABLE, - ENABLE, - KEEP - }; +{ + DISABLE, + ENABLE, + KEEP +}; /* The default long section handling mode is to preserve them. This is also the only behaviour for 'strip'. */ @@ -258,71 +294,82 @@ static enum long_section_name_handling long_section_names = KEEP; /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ enum command_line_switch - { - OPTION_ADD_SECTION=150, - OPTION_CHANGE_ADDRESSES, - OPTION_CHANGE_LEADING_CHAR, - OPTION_CHANGE_START, - OPTION_CHANGE_SECTION_ADDRESS, - OPTION_CHANGE_SECTION_LMA, - OPTION_CHANGE_SECTION_VMA, - OPTION_CHANGE_WARNINGS, - OPTION_COMPRESS_DEBUG_SECTIONS, - OPTION_DEBUGGING, - OPTION_DECOMPRESS_DEBUG_SECTIONS, - OPTION_GAP_FILL, - OPTION_NO_CHANGE_WARNINGS, - OPTION_PAD_TO, - OPTION_REMOVE_LEADING_CHAR, - OPTION_SET_SECTION_FLAGS, - OPTION_SET_START, - OPTION_STRIP_UNNEEDED, - OPTION_WEAKEN, - OPTION_REDEFINE_SYM, - OPTION_REDEFINE_SYMS, - OPTION_SREC_LEN, - OPTION_SREC_FORCES3, - OPTION_STRIP_SYMBOLS, - OPTION_STRIP_UNNEEDED_SYMBOL, - OPTION_STRIP_UNNEEDED_SYMBOLS, - OPTION_KEEP_SYMBOLS, - OPTION_LOCALIZE_HIDDEN, - OPTION_LOCALIZE_SYMBOLS, - OPTION_LONG_SECTION_NAMES, - OPTION_GLOBALIZE_SYMBOL, - OPTION_GLOBALIZE_SYMBOLS, - OPTION_KEEPGLOBAL_SYMBOLS, - OPTION_WEAKEN_SYMBOLS, - OPTION_RENAME_SECTION, - OPTION_ALT_MACH_CODE, - OPTION_PREFIX_SYMBOLS, - OPTION_PREFIX_SECTIONS, - OPTION_PREFIX_ALLOC_SECTIONS, - OPTION_FORMATS_INFO, - OPTION_ADD_GNU_DEBUGLINK, - OPTION_ONLY_KEEP_DEBUG, - OPTION_KEEP_FILE_SYMBOLS, - OPTION_READONLY_TEXT, - OPTION_WRITABLE_TEXT, - OPTION_PURE, - OPTION_IMPURE, - OPTION_EXTRACT_SYMBOL, - OPTION_REVERSE_BYTES, - OPTION_FILE_ALIGNMENT, - OPTION_HEAP, - OPTION_IMAGE_BASE, - OPTION_SECTION_ALIGNMENT, - OPTION_STACK, - OPTION_INTERLEAVE_WIDTH, - OPTION_SUBSYSTEM - }; +{ + OPTION_ADD_SECTION=150, + OPTION_ADD_GNU_DEBUGLINK, + OPTION_ADD_SYMBOL, + OPTION_ALT_MACH_CODE, + OPTION_CHANGE_ADDRESSES, + OPTION_CHANGE_LEADING_CHAR, + OPTION_CHANGE_SECTION_ADDRESS, + OPTION_CHANGE_SECTION_LMA, + OPTION_CHANGE_SECTION_VMA, + OPTION_CHANGE_START, + OPTION_CHANGE_WARNINGS, + OPTION_COMPRESS_DEBUG_SECTIONS, + OPTION_DEBUGGING, + OPTION_DECOMPRESS_DEBUG_SECTIONS, + OPTION_DUMP_SECTION, + OPTION_ELF_STT_COMMON, + OPTION_EXTRACT_DWO, + OPTION_EXTRACT_SYMBOL, + OPTION_FILE_ALIGNMENT, + OPTION_FORMATS_INFO, + OPTION_GAP_FILL, + OPTION_GLOBALIZE_SYMBOL, + OPTION_GLOBALIZE_SYMBOLS, + OPTION_HEAP, + OPTION_IMAGE_BASE, + OPTION_IMPURE, + OPTION_INTERLEAVE_WIDTH, + OPTION_KEEPGLOBAL_SYMBOLS, + OPTION_KEEP_FILE_SYMBOLS, + OPTION_KEEP_SYMBOLS, + OPTION_LOCALIZE_HIDDEN, + OPTION_LOCALIZE_SYMBOLS, + OPTION_LONG_SECTION_NAMES, + OPTION_MERGE_NOTES, + OPTION_NO_MERGE_NOTES, + OPTION_NO_CHANGE_WARNINGS, + OPTION_ONLY_KEEP_DEBUG, + OPTION_PAD_TO, + OPTION_PREFIX_ALLOC_SECTIONS, + OPTION_PREFIX_SECTIONS, + OPTION_PREFIX_SYMBOLS, + OPTION_PURE, + OPTION_READONLY_TEXT, + OPTION_REDEFINE_SYM, + OPTION_REDEFINE_SYMS, + OPTION_REMOVE_LEADING_CHAR, + OPTION_REMOVE_RELOCS, + OPTION_RENAME_SECTION, + OPTION_REVERSE_BYTES, + OPTION_SECTION_ALIGNMENT, + OPTION_SET_SECTION_FLAGS, + OPTION_SET_START, + OPTION_SREC_FORCES3, + OPTION_SREC_LEN, + OPTION_STACK, + OPTION_STRIP_DWO, + OPTION_STRIP_SYMBOLS, + OPTION_STRIP_UNNEEDED, + OPTION_STRIP_UNNEEDED_SYMBOL, + OPTION_STRIP_UNNEEDED_SYMBOLS, + OPTION_SUBSYSTEM, + OPTION_UPDATE_SECTION, + OPTION_WEAKEN, + OPTION_WEAKEN_SYMBOLS, + OPTION_WRITABLE_TEXT +}; /* Options to handle if running as "strip". */ static struct option strip_options[] = { + {"disable-deterministic-archives", no_argument, 0, 'U'}, {"discard-all", no_argument, 0, 'x'}, {"discard-locals", no_argument, 0, 'X'}, + {"enable-deterministic-archives", no_argument, 0, 'D'}, {"format", required_argument, 0, 'F'}, /* Obsolete */ {"help", no_argument, 0, 'h'}, {"info", no_argument, 0, OPTION_FORMATS_INFO}, @@ -330,16 +377,20 @@ static struct option strip_options[] = {"input-target", required_argument, 0, 'I'}, {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS}, {"keep-symbol", required_argument, 0, 'K'}, + {"merge-notes", no_argument, 0, 'M'}, + {"no-merge-notes", no_argument, 0, OPTION_NO_MERGE_NOTES}, {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, + {"output-file", required_argument, 0, 'o'}, {"output-format", required_argument, 0, 'O'}, /* Obsolete */ {"output-target", required_argument, 0, 'O'}, - {"output-file", required_argument, 0, 'o'}, {"preserve-dates", no_argument, 0, 'p'}, {"remove-section", required_argument, 0, 'R'}, + {"remove-relocations", required_argument, 0, OPTION_REMOVE_RELOCS}, {"strip-all", no_argument, 0, 's'}, {"strip-debug", no_argument, 0, 'S'}, - {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, + {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO}, {"strip-symbol", required_argument, 0, 'N'}, + {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, {"target", required_argument, 0, 'F'}, {"verbose", no_argument, 0, 'v'}, {"version", no_argument, 0, 'V'}, @@ -353,9 +404,10 @@ static struct option copy_options[] = { {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK}, {"add-section", required_argument, 0, OPTION_ADD_SECTION}, + {"add-symbol", required_argument, 0, OPTION_ADD_SYMBOL}, + {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, {"adjust-start", required_argument, 0, OPTION_CHANGE_START}, {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES}, - {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE}, {"binary-architecture", required_argument, 0, 'B'}, @@ -367,17 +419,25 @@ static struct option copy_options[] = {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA}, {"change-start", required_argument, 0, OPTION_CHANGE_START}, {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, - {"compress-debug-sections", no_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS}, + {"compress-debug-sections", optional_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS}, {"debugging", no_argument, 0, OPTION_DEBUGGING}, {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS}, + {"disable-deterministic-archives", no_argument, 0, 'U'}, {"discard-all", no_argument, 0, 'x'}, {"discard-locals", no_argument, 0, 'X'}, + {"dump-section", required_argument, 0, OPTION_DUMP_SECTION}, + {"elf-stt-common", required_argument, 0, OPTION_ELF_STT_COMMON}, + {"enable-deterministic-archives", no_argument, 0, 'D'}, + {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO}, {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL}, + {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT}, {"format", required_argument, 0, 'F'}, /* Obsolete */ {"gap-fill", required_argument, 0, OPTION_GAP_FILL}, {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL}, {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS}, + {"heap", required_argument, 0, OPTION_HEAP}, {"help", no_argument, 0, 'h'}, + {"image-base", required_argument, 0 , OPTION_IMAGE_BASE}, {"impure", no_argument, 0, OPTION_IMPURE}, {"info", no_argument, 0, OPTION_FORMATS_INFO}, {"input-format", required_argument, 0, 'I'}, /* Obsolete */ @@ -393,6 +453,8 @@ static struct option copy_options[] = {"localize-symbol", required_argument, 0, 'L'}, {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS}, {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES}, + {"merge-notes", no_argument, 0, 'M'}, + {"no-merge-notes", no_argument, 0, OPTION_NO_MERGE_NOTES}, {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, @@ -400,9 +462,9 @@ static struct option copy_options[] = {"output-format", required_argument, 0, 'O'}, /* Obsolete */ {"output-target", required_argument, 0, 'O'}, {"pad-to", required_argument, 0, OPTION_PAD_TO}, - {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS}, - {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS}, {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS}, + {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS}, + {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS}, {"preserve-dates", no_argument, 0, 'p'}, {"pure", no_argument, 0, OPTION_PURE}, {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT}, @@ -410,20 +472,26 @@ static struct option copy_options[] = {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS}, {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR}, {"remove-section", required_argument, 0, 'R'}, + {"remove-relocations", required_argument, 0, OPTION_REMOVE_RELOCS}, {"rename-section", required_argument, 0, OPTION_RENAME_SECTION}, {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES}, + {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT}, {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS}, {"set-start", required_argument, 0, OPTION_SET_START}, - {"srec-len", required_argument, 0, OPTION_SREC_LEN}, {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3}, + {"srec-len", required_argument, 0, OPTION_SREC_LEN}, + {"stack", required_argument, 0, OPTION_STACK}, {"strip-all", no_argument, 0, 'S'}, {"strip-debug", no_argument, 0, 'g'}, + {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO}, + {"strip-symbol", required_argument, 0, 'N'}, + {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS}, {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL}, {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS}, - {"strip-symbol", required_argument, 0, 'N'}, - {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS}, + {"subsystem", required_argument, 0, OPTION_SUBSYSTEM}, {"target", required_argument, 0, 'F'}, + {"update-section", required_argument, 0, OPTION_UPDATE_SECTION}, {"verbose", no_argument, 0, 'v'}, {"version", no_argument, 0, 'V'}, {"weaken", no_argument, 0, OPTION_WEAKEN}, @@ -431,12 +499,6 @@ static struct option copy_options[] = {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS}, {"wildcard", no_argument, 0, 'w'}, {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT}, - {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT}, - {"heap", required_argument, 0, OPTION_HEAP}, - {"image-base", required_argument, 0 , OPTION_IMAGE_BASE}, - {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT}, - {"stack", required_argument, 0, OPTION_STACK}, - {"subsystem", required_argument, 0, OPTION_SUBSYSTEM}, {0, no_argument, 0, 0} }; @@ -448,26 +510,28 @@ extern char *program_name; -1 means if we should use argv[0] to decide. */ extern int is_strip; -/* The maximum length of an S record. This variable is declared in srec.c +/* The maximum length of an S record. This variable is defined in srec.c and can be modified by the --srec-len parameter. */ -extern unsigned int Chunk; +extern unsigned int _bfd_srec_len; /* Restrict the generation of Srecords to type S3 only. - This variable is declare in bfd/srec.c and can be toggled + This variable is defined in bfd/srec.c and can be toggled on by the --srec-forceS3 command line switch. */ -extern bfd_boolean S3Forced; +extern bfd_boolean _bfd_srec_forceS3; /* Forward declarations. */ static void setup_section (bfd *, asection *, void *); static void setup_bfd_headers (bfd *, bfd *); +static void copy_relocations_in_section (bfd *, asection *, void *); static void copy_section (bfd *, asection *, void *); static void get_sections (bfd *, asection *, void *); static int compare_section_lma (const void *, const void *); static void mark_symbols_used_in_relocations (bfd *, asection *, void *); static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***); static const char *lookup_sym_redefinition (const char *); +static const char *find_section_rename (const char *, flagword *); -static void +ATTRIBUTE_NORETURN static void copy_usage (FILE *stream, int exit_status) { fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name); @@ -479,18 +543,34 @@ copy_usage (FILE *stream, int exit_status) -B --binary-architecture Set output arch, when input is arch-less\n\ -F --target Set both input and output format to \n\ --debugging Convert debugging information, if possible\n\ - -p --preserve-dates Copy modified/access timestamps to the output\n\ + -p --preserve-dates Copy modified/access timestamps to the output\n")); + if (DEFAULT_AR_DETERMINISTIC) + fprintf (stream, _("\ + -D --enable-deterministic-archives\n\ + Produce deterministic output when stripping archives (default)\n\ + -U --disable-deterministic-archives\n\ + Disable -D behavior\n")); + else + fprintf (stream, _("\ + -D --enable-deterministic-archives\n\ + Produce deterministic output when stripping archives\n\ + -U --disable-deterministic-archives\n\ + Disable -D behavior (default)\n")); + fprintf (stream, _("\ -j --only-section Only copy section into the output\n\ --add-gnu-debuglink= Add section .gnu_debuglink linking to \n\ -R --remove-section Remove section from the output\n\ + --remove-relocations Remove relocations from section \n\ -S --strip-all Remove all symbol and relocation information\n\ -g --strip-debug Remove all debugging symbols & sections\n\ + --strip-dwo Remove all DWO sections\n\ --strip-unneeded Remove all symbols not needed by relocations\n\ -N --strip-symbol Do not copy symbol \n\ --strip-unneeded-symbol \n\ Do not copy symbol unless needed by\n\ relocations\n\ --only-keep-debug Strip everything but the debug information\n\ + --extract-dwo Copy only DWO sections\n\ --extract-symbol Remove section contents but keep symbols\n\ -K --keep-symbol Do not strip symbol \n\ --keep-file-symbols Do not strip file symbol(s)\n\ @@ -503,7 +583,7 @@ copy_usage (FILE *stream, int exit_status) -w --wildcard Permit wildcard in symbol comparison\n\ -x --discard-all Remove all non-global symbols\n\ -X --discard-locals Remove any compiler-generated symbols\n\ - -i --interleave [] Only copy N out of every bytes\n\ + -i --interleave[=] Only copy N out of every bytes\n\ --interleave-width Set N for --interleave\n\ -b --byte Select byte in every interleaved block\n\ --gap-fill Fill gaps between sections with \n\ @@ -524,6 +604,10 @@ copy_usage (FILE *stream, int exit_status) --set-section-flags =\n\ Set section 's properties to \n\ --add-section = Add section found in to output\n\ + --update-section =\n\ + Update contents of section with\n\ + contents found in \n\ + --dump-section = Dump the contents of section into \n\ --rename-section =[,] Rename section to \n\ --long-section-names {enable|disable|keep}\n\ Handle long section names in Coff objects.\n\ @@ -544,6 +628,7 @@ copy_usage (FILE *stream, int exit_status) --globalize-symbols --globalize-symbol for all in \n\ --keep-global-symbols -G for all symbols listed in \n\ --weaken-symbols -W for all symbols listed in \n\ + --add-symbol =[
:][,] Add a symbol\n\ --alt-machine-code Use the target's 'th alternative machine\n\ --writable-text Mark the output text as writable\n\ --readonly-text Make the output text write protected\n\ @@ -563,8 +648,13 @@ copy_usage (FILE *stream, int exit_status) \n\ --subsystem [:]\n\ Set PE subsystem to [& ]\n\ - --compress-debug-sections Compress DWARF debug sections using zlib\n\ + --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ + Compress DWARF debug sections using zlib\n\ --decompress-debug-sections Decompress DWARF debug sections using zlib\n\ + --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\ + type\n\ + -M --merge-notes Remove redundant entries in note sections\n\ + --no-merge-notes Do not attempt to remove redundant notes (default)\n\ -v --verbose List all object files modified\n\ @ Read options from \n\ -V --version Display this program's version number\n\ @@ -577,7 +667,7 @@ copy_usage (FILE *stream, int exit_status) exit (exit_status); } -static void +ATTRIBUTE_NORETURN static void strip_usage (FILE *stream, int exit_status) { fprintf (stream, _("Usage: %s in-file(s)\n"), program_name); @@ -588,11 +678,29 @@ strip_usage (FILE *stream, int exit_status) -O --output-target= Create an output file in format \n\ -F --target= Set both input and output format to \n\ -p --preserve-dates Copy modified/access timestamps to the output\n\ - -R --remove-section= Remove section from the output\n\ +")); + if (DEFAULT_AR_DETERMINISTIC) + fprintf (stream, _("\ + -D --enable-deterministic-archives\n\ + Produce deterministic output when stripping archives (default)\n\ + -U --disable-deterministic-archives\n\ + Disable -D behavior\n")); + else + fprintf (stream, _("\ + -D --enable-deterministic-archives\n\ + Produce deterministic output when stripping archives\n\ + -U --disable-deterministic-archives\n\ + Disable -D behavior (default)\n")); + fprintf (stream, _("\ + -R --remove-section= Also remove section from the output\n\ + --remove-relocations Remove relocations from section \n\ -s --strip-all Remove all symbol and relocation information\n\ -g -S -d --strip-debug Remove all debugging symbols & sections\n\ + --strip-dwo Remove all DWO sections\n\ --strip-unneeded Remove all symbols not needed by relocations\n\ --only-keep-debug Strip everything but the debug information\n\ + -M --merge-notes Remove redundant entries in note sections (default)\n\ + --no-merge-notes Do not attempt to remove redundant notes\n\ -N --strip-symbol= Do not copy symbol \n\ -K --keep-symbol= Do not strip symbol \n\ --keep-file-symbols Do not strip file symbol(s)\n\ @@ -636,8 +744,8 @@ parse_flags (const char *s) } if (0) ; -#define PARSE_FLAG(fname,fval) \ - else if (strncasecmp (fname, s, len) == 0) ret |= fval +#define PARSE_FLAG(fname,fval) \ + else if (strncasecmp (fname, s, len) == 0) ret |= fval PARSE_FLAG ("alloc", SEC_ALLOC); PARSE_FLAG ("load", SEC_LOAD); PARSE_FLAG ("noload", SEC_NEVER_LOAD); @@ -648,6 +756,8 @@ parse_flags (const char *s) PARSE_FLAG ("rom", SEC_ROM); PARSE_FLAG ("share", SEC_COFF_SHARED); PARSE_FLAG ("contents", SEC_HAS_CONTENTS); + PARSE_FLAG ("merge", SEC_MERGE); + PARSE_FLAG ("strings", SEC_STRINGS); #undef PARSE_FLAG else { @@ -658,7 +768,81 @@ parse_flags (const char *s) copy[len] = '\0'; non_fatal (_("unrecognized section flag `%s'"), copy); fatal (_("supported flags: %s"), - "alloc, load, noload, readonly, debug, code, data, rom, share, contents"); + "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings"); + } + + s = snext; + } + while (s != NULL); + + return ret; +} + +/* Parse symbol flags into a flagword, with a fatal error if the + string can't be parsed. */ + +static flagword +parse_symflags (const char *s, char **other) +{ + flagword ret; + const char *snext; + size_t len; + + ret = BSF_NO_FLAGS; + + do + { + snext = strchr (s, ','); + if (snext == NULL) + len = strlen (s); + else + { + len = snext - s; + ++snext; + } + +#define PARSE_FLAG(fname, fval) \ + else if (len == sizeof fname - 1 \ + && strncasecmp (fname, s, len) == 0) \ + ret |= fval + +#define PARSE_OTHER(fname, fval) \ + else if (len >= sizeof fname \ + && strncasecmp (fname, s, sizeof fname - 1) == 0) \ + fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1) + + if (0) ; + PARSE_FLAG ("local", BSF_LOCAL); + PARSE_FLAG ("global", BSF_GLOBAL); + PARSE_FLAG ("export", BSF_EXPORT); + PARSE_FLAG ("debug", BSF_DEBUGGING); + PARSE_FLAG ("function", BSF_FUNCTION); + PARSE_FLAG ("weak", BSF_WEAK); + PARSE_FLAG ("section", BSF_SECTION_SYM); + PARSE_FLAG ("constructor", BSF_CONSTRUCTOR); + PARSE_FLAG ("warning", BSF_WARNING); + PARSE_FLAG ("indirect", BSF_INDIRECT); + PARSE_FLAG ("file", BSF_FILE); + PARSE_FLAG ("object", BSF_OBJECT); + PARSE_FLAG ("synthetic", BSF_SYNTHETIC); + PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION | BSF_FUNCTION); + PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE | BSF_OBJECT); + PARSE_OTHER ("before=", *other); + +#undef PARSE_FLAG +#undef PARSE_OTHER + else + { + char *copy; + + copy = (char *) xmalloc (len + 1); + strncpy (copy, s, len); + copy[len] = '\0'; + non_fatal (_("unrecognized symbol flag `%s'"), copy); + fatal (_("supported flags: %s"), + "local, global, export, debug, function, weak, section, " + "constructor, warning, indirect, file, object, synthetic, " + "indirect-function, unique-object, before="); } s = snext; @@ -668,38 +852,144 @@ parse_flags (const char *s) return ret; } -/* Find and optionally add an entry in the change_sections list. */ +/* Find and optionally add an entry in the change_sections list. + + We need to be careful in how we match section names because of the support + for wildcard characters. For example suppose that the user has invoked + objcopy like this: + + --set-section-flags .debug_*=debug + --set-section-flags .debug_str=readonly,debug + --change-section-address .debug_*ranges=0x1000 + + With the idea that all debug sections will receive the DEBUG flag, the + .debug_str section will also receive the READONLY flag and the + .debug_ranges and .debug_aranges sections will have their address set to + 0x1000. (This may not make much sense, but it is just an example). + + When adding the section name patterns to the section list we need to make + sure that previous entries do not match with the new entry, unless the + match is exact. (In which case we assume that the user is overriding + the previous entry with the new context). + + When matching real section names to the section list we make use of the + wildcard characters, but we must do so in context. Eg if we are setting + section addresses then we match for .debug_ranges but not for .debug_info. + + Finally, if ADD is false and we do find a match, we mark the section list + entry as used. */ static struct section_list * -find_section_list (const char *name, bfd_boolean add) +find_section_list (const char *name, bfd_boolean add, unsigned int context) { - struct section_list *p; + struct section_list *p, *match = NULL; + + /* assert ((context & ((1 << 7) - 1)) != 0); */ for (p = change_sections; p != NULL; p = p->next) - if (strcmp (p->name, name) == 0) - return p; + { + if (add) + { + if (strcmp (p->pattern, name) == 0) + { + /* Check for context conflicts. */ + if (((p->context & SECTION_CONTEXT_REMOVE) + && (context & SECTION_CONTEXT_COPY)) + || ((context & SECTION_CONTEXT_REMOVE) + && (p->context & SECTION_CONTEXT_COPY))) + fatal (_("error: %s both copied and removed"), name); + + if (((p->context & SECTION_CONTEXT_SET_VMA) + && (context & SECTION_CONTEXT_ALTER_VMA)) + || ((context & SECTION_CONTEXT_SET_VMA) + && (context & SECTION_CONTEXT_ALTER_VMA))) + fatal (_("error: %s both sets and alters VMA"), name); + + if (((p->context & SECTION_CONTEXT_SET_LMA) + && (context & SECTION_CONTEXT_ALTER_LMA)) + || ((context & SECTION_CONTEXT_SET_LMA) + && (context & SECTION_CONTEXT_ALTER_LMA))) + fatal (_("error: %s both sets and alters LMA"), name); + + /* Extend the context. */ + p->context |= context; + return p; + } + } + /* If we are not adding a new name/pattern then + only check for a match if the context applies. */ + else if (p->context & context) + { + /* We could check for the presence of wildchar characters + first and choose between calling strcmp and fnmatch, + but is that really worth it ? */ + if (p->pattern [0] == '!') + { + if (fnmatch (p->pattern + 1, name, 0) == 0) + { + p->used = TRUE; + return NULL; + } + } + else + { + if (fnmatch (p->pattern, name, 0) == 0) + { + if (match == NULL) + match = p; + } + } + } + } if (! add) - return NULL; + { + if (match != NULL) + match->used = TRUE; + return match; + } p = (struct section_list *) xmalloc (sizeof (struct section_list)); - p->name = name; + p->pattern = name; p->used = FALSE; - p->remove = FALSE; - p->copy = FALSE; - p->change_vma = CHANGE_IGNORE; - p->change_lma = CHANGE_IGNORE; + p->context = context; p->vma_val = 0; p->lma_val = 0; - p->set_flags = FALSE; p->flags = 0; - p->next = change_sections; change_sections = p; return p; } +/* S1 is the entry node already in the table, S2 is the key node. */ + +static int +eq_string_redefnode (const void *s1, const void *s2) +{ + struct redefine_node *node1 = (struct redefine_node *) s1; + struct redefine_node *node2 = (struct redefine_node *) s2; + return !strcmp ((const char *) node1->source, (const char *) node2->source); +} + +/* P is redefine node. Hash value is generated from its "source" filed. */ + +static hashval_t +htab_hash_redefnode (const void *p) +{ + struct redefine_node *redefnode = (struct redefine_node *) p; + return htab_hash_string (redefnode->source); +} + +/* Create hashtab used for redefine node. */ + +static htab_t +create_symbol2redef_htab (void) +{ + return htab_create_alloc (16, htab_hash_redefnode, eq_string_redefnode, NULL, + xcalloc, free); +} + /* There is htab_hash_string but no htab_eq_string. Makes sense. */ static int @@ -724,6 +1014,10 @@ create_symbol_htabs (void) globalize_specific_htab = create_symbol_htab (); keepglobal_specific_htab = create_symbol_htab (); weaken_specific_htab = create_symbol_htab (); + redefine_specific_htab = create_symbol2redef_htab (); + /* As there is no bidirectional hash table in libiberty, need a reverse table + to check duplicated target string. */ + redefine_specific_reverse_htab = create_symbol_htab (); } /* Add a symbol to strip_specific_list. */ @@ -734,13 +1028,21 @@ add_specific_symbol (const char *name, htab_t htab) *htab_find_slot (htab, name, INSERT) = (char *) name; } +/* Like add_specific_symbol, but the element type is void *. */ + +static void +add_specific_symbol_node (const void *node, htab_t htab) +{ + *htab_find_slot (htab, node, INSERT) = (void *) node; +} + /* Add symbols listed in `filename' to strip_specific_list. */ #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t') #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0') static void -add_specific_symbols (const char *filename, htab_t htab) +add_specific_symbols (const char *filename, htab_t htab, char **buffer_p) { off_t size; FILE * f; @@ -848,6 +1150,10 @@ add_specific_symbols (const char *filename, htab_t htab) line = eol; line_count ++; } + + /* Do not free the buffer. Parts of it will have been referenced + in the calls to add_specific_symbol. */ + *buffer_p = buffer; } /* See whether a symbol should be stripped or kept @@ -865,15 +1171,15 @@ is_specified_symbol_predicate (void **slot, void *data) if (! fnmatch (slot_name, d->name, 0)) { d->found = TRUE; - /* Stop traversal. */ - return 0; + /* Continue traversal, there might be a non-match rule. */ + return 1; } } else { - if (fnmatch (slot_name + 1, d->name, 0)) + if (! fnmatch (slot_name + 1, d->name, 0)) { - d->found = TRUE; + d->found = FALSE; /* Stop traversal. */ return 0; } @@ -909,36 +1215,101 @@ group_signature (asection *group) bfd *abfd = group->owner; Elf_Internal_Shdr *ghdr; + /* PR 20089: An earlier error may have prevented us from loading the symbol table. */ + if (isympp == NULL) + return NULL; + if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) return NULL; ghdr = &elf_section_data (group)->this_hdr; - if (ghdr->sh_link < elf_numsections (abfd)) + if (ghdr->sh_link == elf_onesymtab (abfd)) { const struct elf_backend_data *bed = get_elf_backend_data (abfd); - Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link]; + Elf_Internal_Shdr *symhdr = &elf_symtab_hdr (abfd); - if (symhdr->sh_type == SHT_SYMTAB + if (ghdr->sh_info > 0 && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym) return isympp[ghdr->sh_info - 1]; } return NULL; } -/* See if a section is being removed. */ +/* Return TRUE if the section is a DWO section. */ static bfd_boolean -is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) +is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) +{ + const char *name = bfd_get_section_name (abfd, sec); + int len = strlen (name); + + return strncmp (name + len - 4, ".dwo", 4) == 0; +} + +/* Return TRUE if section SEC is in the update list. */ + +static bfd_boolean +is_update_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) +{ + if (update_sections != NULL) + { + struct section_add *pupdate; + + for (pupdate = update_sections; + pupdate != NULL; + pupdate = pupdate->next) + { + if (strcmp (sec->name, pupdate->name) == 0) + return TRUE; + } + } + + return FALSE; +} + +static bfd_boolean +is_merged_note_section (bfd * abfd, asection * sec) +{ + if (merge_notes + && bfd_get_flavour (abfd) == bfd_target_elf_flavour + && elf_section_data (sec)->this_hdr.sh_type == SHT_NOTE + /* FIXME: We currently only support merging GNU_BUILD_NOTEs. + We should add support for more note types. */ + && ((elf_section_data (sec)->this_hdr.sh_flags & SHF_GNU_BUILD_NOTE) != 0 + /* Old versions of GAS (prior to 2.27) could not set the section + flags to OS-specific values, so we also accept sections with the + expected name. */ + || (strcmp (sec->name, GNU_BUILD_ATTRS_SECTION_NAME) == 0))) + return TRUE; + + return FALSE; +} + +/* See if a non-group section is being removed. */ + +static bfd_boolean +is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) { if (sections_removed || sections_copied) { struct section_list *p; + struct section_list *q; - p = find_section_list (bfd_get_section_name (abfd, sec), FALSE); + p = find_section_list (bfd_get_section_name (abfd, sec), FALSE, + SECTION_CONTEXT_REMOVE); + q = find_section_list (bfd_get_section_name (abfd, sec), FALSE, + SECTION_CONTEXT_COPY); - if (sections_removed && p != NULL && p->remove) + if (p && q) + fatal (_("error: section %s matches both remove and copy options"), + bfd_get_section_name (abfd, sec)); + if (p && is_update_section (abfd, sec)) + fatal (_("error: section %s matches both update and remove options"), + bfd_get_section_name (abfd, sec)); + + if (p != NULL) return TRUE; - if (sections_copied && (p == NULL || ! p->copy)) + if (sections_copied && q == NULL) return TRUE; } @@ -949,34 +1320,90 @@ is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) || strip_symbols == STRIP_ALL || discard_locals == LOCALS_ALL || convert_debugging) - return TRUE; + { + /* By default we don't want to strip .reloc section. + This section has for pe-coff special meaning. See + pe-dll.c file in ld, and peXXigen.c in bfd for details. */ + if (strcmp (bfd_get_section_name (abfd, sec), ".reloc") != 0) + return TRUE; + } + + if (strip_symbols == STRIP_DWO) + return is_dwo_section (abfd, sec); if (strip_symbols == STRIP_NONDEBUG) return FALSE; } + if (strip_symbols == STRIP_NONDWO) + return !is_dwo_section (abfd, sec); + + return FALSE; +} + +/* See if a section is being removed. */ + +static bfd_boolean +is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) +{ + if (is_strip_section_1 (abfd, sec)) + return TRUE; + if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0) { asymbol *gsym; const char *gname; + asection *elt, *first; + + gsym = group_signature (sec); + /* Strip groups without a valid signature. */ + if (gsym == NULL) + return TRUE; /* PR binutils/3181 If we are going to strip the group signature symbol, then strip the group section too. */ - gsym = group_signature (sec); - if (gsym != NULL) - gname = gsym->name; - else - gname = sec->name; + gname = gsym->name; if ((strip_symbols == STRIP_ALL && !is_specified_symbol (gname, keep_specific_htab)) || is_specified_symbol (gname, strip_specific_htab)) return TRUE; + + /* Remove the group section if all members are removed. */ + first = elt = elf_next_in_group (sec); + while (elt != NULL) + { + if (!is_strip_section_1 (abfd, elt)) + return FALSE; + elt = elf_next_in_group (elt); + if (elt == first) + break; + } + + return TRUE; } return FALSE; } +static bfd_boolean +is_nondebug_keep_contents_section (bfd *ibfd, asection *isection) +{ + /* Always keep ELF note sections. */ + if (ibfd->xvec->flavour == bfd_target_elf_flavour) + return (elf_section_type (isection) == SHT_NOTE); + + /* Always keep the .buildid section for PE/COFF. + + Strictly, this should be written "always keep the section storing the debug + directory", but that may be the .text section for objects produced by some + tools, which it is not sensible to keep. */ + if (ibfd->xvec->flavour == bfd_target_coff_flavour) + return (strcmp (bfd_get_section_name (ibfd, isection), ".buildid") == 0); + + return FALSE; +} + /* Return true if SYM is a hidden symbol. */ static bfd_boolean @@ -995,6 +1422,49 @@ is_hidden_symbol (asymbol *sym) return FALSE; } +static bfd_boolean +need_sym_before (struct addsym_node **node, const char *sym) +{ + int count; + struct addsym_node *ptr = add_sym_list; + + /* 'othersym' symbols are at the front of the list. */ + for (count = 0; count < add_symbols; count++) + { + if (!ptr->othersym) + break; + else if (strcmp (ptr->othersym, sym) == 0) + { + free (ptr->othersym); + ptr->othersym = ""; /* Empty name is hopefully never a valid symbol name. */ + *node = ptr; + return TRUE; + } + ptr = ptr->next; + } + return FALSE; +} + +static asymbol * +create_new_symbol (struct addsym_node *ptr, bfd *obfd) +{ + asymbol *sym = bfd_make_empty_symbol (obfd); + + bfd_asymbol_name (sym) = ptr->symdef; + sym->value = ptr->symval; + sym->flags = ptr->flags; + if (ptr->section) + { + asection *sec = bfd_get_section_by_name (obfd, ptr->section); + if (!sec) + fatal (_("Section %s not found"), ptr->section); + sym->section = sec; + } + else + sym->section = bfd_abs_section_ptr; + return sym; +} + /* Choose which symbol entries to copy; put the result in OSYMS. We don't copy in place, because that confuses the relocs. Return the number of symbols to print. */ @@ -1020,12 +1490,22 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, undefined = bfd_is_und_section (bfd_get_section (sym)); - if (redefine_sym_list) + if (add_sym_list) + { + struct addsym_node *ptr; + + if (need_sym_before (&ptr, name)) + to[dst_count++] = create_new_symbol (ptr, obfd); + } + + if (htab_elements (redefine_specific_htab) || section_rename_list) { - char *old_name, *new_name; + char *new_name; - old_name = (char *) bfd_asymbol_name (sym); - new_name = (char *) lookup_sym_redefinition (old_name); + new_name = (char *) lookup_sym_redefinition (name); + if (new_name == name + && (flags & BSF_SECTION_SYM) != 0) + new_name = (char *) find_section_rename (name, NULL); bfd_asymbol_name (sym) = new_name; name = new_name; } @@ -1048,12 +1528,12 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, /* Short circuit for change_leading_char if we can do it in-place. */ if (rem_leading_char && add_leading_char && !prefix_symbols_string) - { + { name[0] = bfd_get_symbol_leading_char (obfd); bfd_asymbol_name (sym) = name; rem_leading_char = FALSE; add_leading_char = FALSE; - } + } /* Remove leading char. */ if (rem_leading_char) @@ -1061,23 +1541,23 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, /* Add new leading char and/or prefix. */ if (add_leading_char || prefix_symbols_string) - { - char *n, *ptr; + { + char *n, *ptr; - ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string) - + strlen (name) + 1); - if (add_leading_char) + ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string) + + strlen (name) + 1); + if (add_leading_char) *ptr++ = bfd_get_symbol_leading_char (obfd); - if (prefix_symbols_string) - { - strcpy (ptr, prefix_symbols_string); - ptr += strlen (prefix_symbols_string); - } + if (prefix_symbols_string) + { + strcpy (ptr, prefix_symbols_string); + ptr += strlen (prefix_symbols_string); + } - strcpy (ptr, name); - bfd_asymbol_name (sym) = n; - name = n; + strcpy (ptr, name); + bfd_asymbol_name (sym) = n; + name = n; } if (strip_symbols == STRIP_ALL) @@ -1176,6 +1656,23 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, to[dst_count++] = sym; } } + if (add_sym_list) + { + struct addsym_node *ptr = add_sym_list; + + for (src_count = 0; src_count < add_symbols; src_count++) + { + if (ptr->othersym) + { + if (strcmp (ptr->othersym, "")) + fatal (_("'before=%s' not found"), ptr->othersym); + } + else + to[dst_count++] = create_new_symbol (ptr, obfd); + + ptr = ptr->next; + } + } to[dst_count] = NULL; @@ -1187,42 +1684,40 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, static const char * lookup_sym_redefinition (const char *source) { - struct redefine_node *list; - - for (list = redefine_sym_list; list != NULL; list = list->next) - if (strcmp (source, list->source) == 0) - return list->target; + struct redefine_node key_node = {(char *) source, NULL}; + struct redefine_node *redef_node + = (struct redefine_node *) htab_find (redefine_specific_htab, &key_node); - return source; + return redef_node == NULL ? source : redef_node->target; } -/* Add a node to a symbol redefine list. */ +/* Insert a node into symbol redefine hash tabel. */ static void -redefine_list_append (const char *cause, const char *source, const char *target) +add_redefine_and_check (const char *cause, const char *source, + const char *target) { - struct redefine_node **p; - struct redefine_node *list; - struct redefine_node *new_node; - - for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next) - { - if (strcmp (source, list->source) == 0) - fatal (_("%s: Multiple redefinition of symbol \"%s\""), - cause, source); - - if (strcmp (target, list->target) == 0) - fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"), - cause, target); - } - - new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node)); + struct redefine_node *new_node + = (struct redefine_node *) xmalloc (sizeof (struct redefine_node)); new_node->source = strdup (source); new_node->target = strdup (target); - new_node->next = NULL; - *p = new_node; + if (htab_find (redefine_specific_htab, new_node) != HTAB_EMPTY_ENTRY) + fatal (_("%s: Multiple redefinition of symbol \"%s\""), + cause, source); + + if (htab_find (redefine_specific_reverse_htab, target) != HTAB_EMPTY_ENTRY) + fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"), + cause, target); + + /* Insert the NEW_NODE into hash table for quick search. */ + add_specific_symbol_node (new_node, redefine_specific_htab); + + /* Insert the target string into the reverse hash table, this is needed for + duplicated target string check. */ + add_specific_symbol (new_node->target, redefine_specific_reverse_htab); + } /* Handle the --redefine-syms option. Read lines containing "old new" @@ -1304,10 +1799,10 @@ add_redefine_syms_file (const char *filename) if ((c == '\r' && (c = getc (file)) == '\n') || c == '\n' || c == EOF) { - end_of_line: + end_of_line: /* Append the redefinition to the list. */ if (buf[0] != '\0') - redefine_list_append (filename, &buf[0], &buf[outsym_off]); + add_redefine_and_check (filename, &buf[0], &buf[outsym_off]); lineno++; len = 0; @@ -1319,7 +1814,7 @@ add_redefine_syms_file (const char *filename) } else fatal (_("%s:%d: garbage found at end of line"), filename, lineno); - comment: + comment: if (len != 0 && (outsym_off == 0 || outsym_off == len)) fatal (_("%s:%d: missing new symbol name"), filename, lineno); buf[len++] = '\0'; @@ -1334,9 +1829,10 @@ add_redefine_syms_file (const char *filename) fatal (_("%s:%d: premature end of file"), filename, lineno); free (buf); + fclose (file); } -/* Copy unkown object file IBFD onto OBFD. +/* Copy unknown object file IBFD onto OBFD. Returns TRUE upon success, FALSE otherwise. */ static bfd_boolean @@ -1399,11 +1895,556 @@ copy_unknown_object (bfd *ibfd, bfd *obfd) ncopied += tocopy; } - chmod (bfd_get_filename (obfd), buf.st_mode); + /* We should at least to be able to read it back when copying an + unknown object in an archive. */ + chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR); free (cbuf); return TRUE; } +/* Returns the number of bytes needed to store VAL. */ + +static inline unsigned int +num_bytes (unsigned long val) +{ + unsigned int count = 0; + + /* FIXME: There must be a faster way to do this. */ + while (val) + { + count ++; + val >>= 8; + } + return count; +} + +typedef struct objcopy_internal_note +{ + Elf_Internal_Note note; + bfd_vma start; + bfd_vma end; + bfd_boolean modified; +} objcopy_internal_note; + +/* Returns TRUE if a gap does, or could, exist between the address range + covered by PNOTE1 and PNOTE2. */ + +static bfd_boolean +gap_exists (objcopy_internal_note * pnote1, + objcopy_internal_note * pnote2) +{ + /* Without range end notes, we assume that a gap might exist. */ + if (pnote1->end == 0 || pnote2->end == 0) + return TRUE; + + /* FIXME: Alignment of 16 bytes taken from x86_64 binaries. + Really we should extract the alignment of the section covered by the notes. */ + return BFD_ALIGN (pnote1->end, 16) < pnote2->start; +} + +static bfd_boolean +is_open_note (objcopy_internal_note * pnote) +{ + return (pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_OPEN); +} + +static bfd_boolean +is_func_note (objcopy_internal_note * pnote) +{ + return (pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_FUNC); +} + +static bfd_boolean +is_64bit (bfd * abfd) +{ + /* Should never happen, but let's be paranoid. */ + if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) + return FALSE; + + return elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64; +} + +/* Merge the notes on SEC, removing redundant entries. + Returns the new, smaller size of the section upon success. */ + +static bfd_size_type +merge_gnu_build_notes (bfd * abfd, asection * sec, bfd_size_type size, bfd_byte * contents) +{ + objcopy_internal_note * pnotes_end; + objcopy_internal_note * pnotes = NULL; + objcopy_internal_note * pnote; + bfd_size_type remain = size; + unsigned version_1_seen = 0; + unsigned version_2_seen = 0; + unsigned version_3_seen = 0; + bfd_boolean duplicate_found = FALSE; + const char * err = NULL; + bfd_byte * in = contents; + int attribute_type_byte; + int val_start; + unsigned long previous_func_start = 0; + unsigned long previous_open_start = 0; + unsigned long previous_func_end = 0; + unsigned long previous_open_end = 0; + long relsize; + + + relsize = bfd_get_reloc_upper_bound (abfd, sec); + if (relsize > 0) + { + arelent ** relpp; + long relcount; + + /* If there are relocs associated with this section then we + cannot safely merge it. */ + relpp = (arelent **) xmalloc (relsize); + relcount = bfd_canonicalize_reloc (abfd, sec, relpp, isympp); + free (relpp); + if (relcount != 0) + goto done; + } + + /* Make a copy of the notes and convert to our internal format. + Minimum size of a note is 12 bytes. */ + pnote = pnotes = (objcopy_internal_note *) xcalloc ((size / 12), sizeof (* pnote)); + while (remain >= 12) + { + bfd_vma start, end; + + pnote->note.namesz = (bfd_get_32 (abfd, in ) + 3) & ~3; + pnote->note.descsz = (bfd_get_32 (abfd, in + 4) + 3) & ~3; + pnote->note.type = bfd_get_32 (abfd, in + 8); + + if (pnote->note.type != NT_GNU_BUILD_ATTRIBUTE_OPEN + && pnote->note.type != NT_GNU_BUILD_ATTRIBUTE_FUNC) + { + err = _("corrupt GNU build attribute note: wrong note type"); + goto done; + } + + if (pnote->note.namesz + pnote->note.descsz + 12 > remain) + { + err = _("corrupt GNU build attribute note: note too big"); + goto done; + } + + if (pnote->note.namesz < 2) + { + err = _("corrupt GNU build attribute note: name too small"); + goto done; + } + + pnote->note.namedata = (char *)(in + 12); + pnote->note.descdata = (char *)(in + 12 + pnote->note.namesz); + + remain -= 12 + pnote->note.namesz + pnote->note.descsz; + in += 12 + pnote->note.namesz + pnote->note.descsz; + + if (pnote->note.namesz > 2 + && pnote->note.namedata[0] == '$' + && pnote->note.namedata[1] == GNU_BUILD_ATTRIBUTE_VERSION + && pnote->note.namedata[2] == '1') + ++ version_1_seen; + else if (pnote->note.namesz > 4 + && pnote->note.namedata[0] == 'G' + && pnote->note.namedata[1] == 'A' + && pnote->note.namedata[2] == '$' + && pnote->note.namedata[3] == GNU_BUILD_ATTRIBUTE_VERSION) + { + if (pnote->note.namedata[4] == '2') + ++ version_2_seen; + else if (pnote->note.namedata[4] == '3') + ++ version_3_seen; + else + { + err = _("corrupt GNU build attribute note: unsupported version"); + goto done; + } + } + + switch (pnote->note.descsz) + { + case 0: + start = end = 0; + break; + + case 4: + start = bfd_get_32 (abfd, pnote->note.descdata); + /* FIXME: For version 1 and 2 notes we should try to + calculate the end address by finding a symbol whose + value is START, and then adding in its size. + + For now though, since v1 and v2 was not intended to + handle gaps, we chose an artificially large end + address. */ + end = (bfd_vma) -1; + break; + + case 8: + if (! is_64bit (abfd)) + { + start = bfd_get_32 (abfd, pnote->note.descdata); + end = bfd_get_32 (abfd, pnote->note.descdata + 4); + } + else + { + start = bfd_get_64 (abfd, pnote->note.descdata); + /* FIXME: For version 1 and 2 notes we should try to + calculate the end address by finding a symbol whose + value is START, and then adding in its size. + + For now though, since v1 and v2 was not intended to + handle gaps, we chose an artificially large end + address. */ + end = (bfd_vma) -1; + } + break; + + case 16: + start = bfd_get_64 (abfd, pnote->note.descdata); + end = bfd_get_64 (abfd, pnote->note.descdata + 8); + break; + + default: + err = _("corrupt GNU build attribute note: bad description size"); + goto done; + } + + if (is_open_note (pnote)) + { + if (start) + previous_open_start = start; + + pnote->start = previous_open_start; + + if (end) + previous_open_end = end; + + pnote->end = previous_open_end; + } + else + { + if (start) + previous_func_start = start; + + pnote->start = previous_func_start; + + if (end) + previous_func_end = end; + + pnote->end = previous_func_end; + } + + if (pnote->note.namedata[pnote->note.namesz - 1] != 0) + { + err = _("corrupt GNU build attribute note: name not NUL terminated"); + goto done; + } + + pnote ++; + } + + pnotes_end = pnote; + + /* Check that the notes are valid. */ + if (remain != 0) + { + err = _("corrupt GNU build attribute notes: excess data at end"); + goto done; + } + + if (version_1_seen == 0 && version_2_seen == 0 && version_3_seen == 0) + { + err = _("bad GNU build attribute notes: no known versions detected"); + goto done; + } + + if ((version_1_seen > 0 && version_2_seen > 0) + || (version_1_seen > 0 && version_3_seen > 0) + || (version_2_seen > 0 && version_3_seen > 0)) + { + err = _("bad GNU build attribute notes: multiple different versions"); + goto done; + } + + /* Merging is only needed if there is more than one version note... */ + if (version_1_seen == 1 || version_2_seen == 1 || version_3_seen == 1) + goto done; + + attribute_type_byte = version_1_seen ? 1 : 3; + val_start = attribute_type_byte + 1; + + /* The first note should be the first version note. */ + if (pnotes[0].note.namedata[attribute_type_byte] != GNU_BUILD_ATTRIBUTE_VERSION) + { + err = _("bad GNU build attribute notes: first note not version note"); + goto done; + } + + /* Now merge the notes. The rules are: + 1. Preserve the ordering of the notes. + 2. Preserve any NT_GNU_BUILD_ATTRIBUTE_FUNC notes. + 3. Eliminate any NT_GNU_BUILD_ATTRIBUTE_OPEN notes that have the same + full name field as the immediately preceeding note with the same type + of name and whose address ranges coincide. + IE - if there are gaps in the coverage of the notes, then these gaps + must be preserved. + 4. Combine the numeric value of any NT_GNU_BUILD_ATTRIBUTE_OPEN notes + of type GNU_BUILD_ATTRIBUTE_STACK_SIZE. + 5. If an NT_GNU_BUILD_ATTRIBUTE_OPEN note is going to be preserved and + its description field is empty then the nearest preceeding OPEN note + with a non-empty description field must also be preserved *OR* the + description field of the note must be changed to contain the starting + address to which it refers. + 6. Notes with the same start and end address can be deleted. */ + for (pnote = pnotes + 1; pnote < pnotes_end; pnote ++) + { + int note_type; + objcopy_internal_note * back; + objcopy_internal_note * prev_open_with_range = NULL; + + /* Rule 6 - delete 0-range notes. */ + if (pnote->start == pnote->end) + { + duplicate_found = TRUE; + pnote->note.type = 0; + continue; + } + + /* Rule 2 - preserve function notes. */ + if (! is_open_note (pnote)) + { + int iter; + + /* Check to see if there is an identical previous function note. + This can happen with overlays for example. */ + for (iter = 0, back = pnote -1; back >= pnotes; back --) + { + if (back->start == pnote->start + && back->end == pnote->end + && back->note.namesz == pnote->note.namesz + && memcmp (back->note.namedata, pnote->note.namedata, pnote->note.namesz) == 0) + { + fprintf (stderr, "DUP FUNXC\n"); + duplicate_found = TRUE; + pnote->note.type = 0; + break; + } + + /* Don't scan too far back however. */ + if (iter ++ > 16) + break; + } + continue; + } + + note_type = pnote->note.namedata[attribute_type_byte]; + + /* Scan backwards from pnote, looking for duplicates. + Clear the type field of any found - but do not delete them just yet. */ + for (back = pnote - 1; back >= pnotes; back --) + { + int back_type = back->note.namedata[attribute_type_byte]; + + /* If this is the first open note with an address + range that we have encountered then record it. */ + if (prev_open_with_range == NULL + && back->note.descsz > 0 + && ! is_func_note (back)) + prev_open_with_range = back; + + if (! is_open_note (back)) + continue; + + /* If the two notes are different then keep on searching. */ + if (back_type != note_type) + continue; + + /* Rule 4 - combine stack size notes. */ + if (back_type == GNU_BUILD_ATTRIBUTE_STACK_SIZE) + { + unsigned char * name; + unsigned long note_val; + unsigned long back_val; + unsigned int shift; + unsigned int bytes; + unsigned long byte; + + for (shift = 0, note_val = 0, + bytes = pnote->note.namesz - val_start, + name = (unsigned char *) pnote->note.namedata + val_start; + bytes--;) + { + byte = (* name ++) & 0xff; + note_val |= byte << shift; + shift += 8; + } + + for (shift = 0, back_val = 0, + bytes = back->note.namesz - val_start, + name = (unsigned char *) back->note.namedata + val_start; + bytes--;) + { + byte = (* name ++) & 0xff; + back_val |= byte << shift; + shift += 8; + } + + back_val += note_val; + if (num_bytes (back_val) >= back->note.namesz - val_start) + { + /* We have a problem - the new value requires more bytes of + storage in the name field than are available. Currently + we have no way of fixing this, so we just preserve both + notes. */ + continue; + } + + /* Write the new val into back. */ + name = (unsigned char *) back->note.namedata + val_start; + while (name < (unsigned char *) back->note.namedata + + back->note.namesz) + { + byte = back_val & 0xff; + * name ++ = byte; + if (back_val == 0) + break; + back_val >>= 8; + } + + duplicate_found = TRUE; + pnote->note.type = 0; + break; + } + + /* Rule 3 - combine identical open notes. */ + if (back->note.namesz == pnote->note.namesz + && memcmp (back->note.namedata, + pnote->note.namedata, back->note.namesz) == 0 + && ! gap_exists (back, pnote)) + { + duplicate_found = TRUE; + pnote->note.type = 0; + + if (pnote->end > back->end) + back->end = pnote->end; + + if (version_3_seen) + back->modified = TRUE; + break; + } + + /* Rule 5 - Since we are keeping this note we must check to see + if its description refers back to an earlier OPEN version + note that has been scheduled for deletion. If so then we + must make sure that version note is also preserved. */ + if (version_3_seen) + { + /* As of version 3 we can just + move the range into the note. */ + pnote->modified = TRUE; + pnote->note.type = NT_GNU_BUILD_ATTRIBUTE_FUNC; + back->modified = TRUE; + back->note.type = NT_GNU_BUILD_ATTRIBUTE_FUNC; + } + else + { + if (pnote->note.descsz == 0 + && prev_open_with_range != NULL + && prev_open_with_range->note.type == 0) + prev_open_with_range->note.type = NT_GNU_BUILD_ATTRIBUTE_OPEN; + } + + /* We have found a similar attribute but the details do not match. + Stop searching backwards. */ + break; + } + } + + if (duplicate_found) + { + bfd_byte * new_contents; + bfd_byte * old; + bfd_byte * new; + bfd_size_type new_size; + bfd_vma prev_start = 0; + bfd_vma prev_end = 0; + + /* Eliminate the duplicates. */ + new = new_contents = xmalloc (size); + for (pnote = pnotes, old = contents; + pnote < pnotes_end; + pnote ++) + { + bfd_size_type note_size = 12 + pnote->note.namesz + pnote->note.descsz; + + if (pnote->note.type != 0) + { + if (pnote->modified) + { + /* If the note has been modified then we must copy it by + hand, potentially adding in a new description field. */ + if (pnote->start == prev_start && pnote->end == prev_end) + { + bfd_put_32 (abfd, pnote->note.namesz, new); + bfd_put_32 (abfd, 0, new + 4); + bfd_put_32 (abfd, pnote->note.type, new + 8); + new += 12; + memcpy (new, pnote->note.namedata, pnote->note.namesz); + new += pnote->note.namesz; + } + else + { + bfd_put_32 (abfd, pnote->note.namesz, new); + bfd_put_32 (abfd, is_64bit (abfd) ? 16 : 8, new + 4); + bfd_put_32 (abfd, pnote->note.type, new + 8); + new += 12; + memcpy (new, pnote->note.namedata, pnote->note.namesz); + new += pnote->note.namesz; + if (is_64bit (abfd)) + { + bfd_put_64 (abfd, pnote->start, new); + bfd_put_64 (abfd, pnote->end, new + 8); + new += 16; + } + else + { + bfd_put_32 (abfd, pnote->start, new); + bfd_put_32 (abfd, pnote->end, new + 4); + new += 8; + } + } + } + else + { + memcpy (new, old, note_size); + new += note_size; + } + prev_start = pnote->start; + prev_end = pnote->end; + } + + old += note_size; + } + + new_size = new - new_contents; + memcpy (contents, new_contents, new_size); + size = new_size; + free (new_contents); + } + + done: + if (err) + { + bfd_set_error (bfd_error_bad_value); + bfd_nonfatal_message (NULL, abfd, sec, err); + status = 1; + } + + free (pnotes); + return size; +} + /* Copy object file IBFD onto OBFD. Returns TRUE upon success, FALSE otherwise. */ @@ -1413,6 +2454,7 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) bfd_vma start; long symcount; asection **osections = NULL; + asection *osec; asection *gnu_debuglink_section = NULL; bfd_size_type *gaps = NULL; bfd_size_type max_gap = 0; @@ -1420,11 +2462,17 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) void *dhandle; enum bfd_architecture iarch; unsigned int imach; + unsigned int c, i; if (ibfd->xvec->byteorder != obfd->xvec->byteorder && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) - fatal (_("Unable to change endianness of input file(s)")); + { + /* PR 17636: Call non-fatal so that we return to our parent who + may need to tidy temporary files. */ + non_fatal (_("Unable to change endianness of input file(s)")); + return FALSE; + } if (!bfd_set_format (obfd, bfd_get_format (ibfd))) { @@ -1432,6 +2480,31 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) return FALSE; } + if (ibfd->sections == NULL) + { + non_fatal (_("error: the input file '%s' has no sections"), + bfd_get_archive_filename (ibfd)); + return FALSE; + } + + if (ibfd->xvec->flavour != bfd_target_elf_flavour) + { + if ((do_debug_sections & compress) != 0 + && do_debug_sections != compress) + { + non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"), + bfd_get_archive_filename (ibfd)); + return FALSE; + } + + if (do_elf_stt_common) + { + non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"), + bfd_get_archive_filename (ibfd)); + return FALSE; + } + } + if (verbose) printf (_("copy from `%s' [%s] to `%s' [%s]\n"), bfd_get_archive_filename (ibfd), bfd_get_target (ibfd), @@ -1585,6 +2658,14 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) bfd_nonfatal_message (NULL, ibfd, NULL, NULL); return FALSE; } + /* PR 17512: file: d6323821 + If the symbol table could not be loaded do not pretend that we have + any symbols. This trips us up later on when we load the relocs. */ + if (symcount == 0) + { + free (isympp); + osympp = isympp = NULL; + } /* BFD mandates that all output sections be created and sizes set before any output is done. Thus, we traverse all sections multiple times. */ @@ -1602,28 +2683,27 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) { flagword flags; - pset = find_section_list (padd->name, FALSE); + pset = find_section_list (padd->name, FALSE, + SECTION_CONTEXT_SET_FLAGS); if (pset != NULL) - pset->used = TRUE; - - flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA; - if (pset != NULL && pset->set_flags) flags = pset->flags | SEC_HAS_CONTENTS; + else + flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA; /* bfd_make_section_with_flags() does not return very helpful error codes, so check for the most likely user error first. */ if (bfd_get_section_by_name (obfd, padd->name)) { bfd_nonfatal_message (NULL, obfd, NULL, - _("can't add section '%s'"), padd->name); + _("can't add section '%s'"), padd->name); return FALSE; } else { /* We use LINKER_CREATED here so that the backend hooks - will create any special section type information, - instead of presuming we know what we're doing merely - because we set the flags. */ + will create any special section type information, + instead of presuming we know what we're doing merely + because we set the flags. */ padd->section = bfd_make_section_with_flags (obfd, padd->name, flags | SEC_LINKER_CREATED); if (padd->section == NULL) @@ -1641,94 +2721,239 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) return FALSE; } + pset = find_section_list (padd->name, FALSE, + SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA); + if (pset != NULL + && ! bfd_set_section_vma (obfd, padd->section, pset->vma_val)) + { + bfd_nonfatal_message (NULL, obfd, padd->section, NULL); + return FALSE; + } + + pset = find_section_list (padd->name, FALSE, + SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA); if (pset != NULL) { - if (pset->change_vma != CHANGE_IGNORE) - if (! bfd_set_section_vma (obfd, padd->section, - pset->vma_val)) - { - bfd_nonfatal_message (NULL, obfd, padd->section, NULL); - return FALSE; - } + padd->section->lma = pset->lma_val; - if (pset->change_lma != CHANGE_IGNORE) + if (! bfd_set_section_alignment + (obfd, padd->section, + bfd_section_alignment (obfd, padd->section))) { - padd->section->lma = pset->lma_val; + bfd_nonfatal_message (NULL, obfd, padd->section, NULL); + return FALSE; + } + } + } + } + + if (update_sections != NULL) + { + struct section_add *pupdate; - if (! bfd_set_section_alignment - (obfd, padd->section, - bfd_section_alignment (obfd, padd->section))) + for (pupdate = update_sections; + pupdate != NULL; + pupdate = pupdate->next) + { + pupdate->section = bfd_get_section_by_name (ibfd, pupdate->name); + if (pupdate->section == NULL) + { + non_fatal (_("error: %s not found, can't be updated"), pupdate->name); + return FALSE; + } + + osec = pupdate->section->output_section; + if (! bfd_set_section_size (obfd, osec, pupdate->size)) + { + bfd_nonfatal_message (NULL, obfd, osec, NULL); + return FALSE; + } + } + } + + if (merge_notes) + { + /* This palaver is necessary because we must set the output + section size first, before its contents are ready. */ + osec = bfd_get_section_by_name (ibfd, GNU_BUILD_ATTRS_SECTION_NAME); + if (osec && is_merged_note_section (ibfd, osec)) + { + bfd_size_type size; + + size = bfd_get_section_size (osec); + if (size == 0) + { + bfd_nonfatal_message (NULL, ibfd, osec, _("warning: note section is empty")); + merge_notes = FALSE; + } + else if (! bfd_get_full_section_contents (ibfd, osec, & merged_notes)) + { + bfd_nonfatal_message (NULL, ibfd, osec, _("warning: could not load note section")); + free (merged_notes); + merged_notes = NULL; + merge_notes = FALSE; + } + else + { + merged_size = merge_gnu_build_notes (ibfd, osec, size, merged_notes); + if (merged_size == size) + { + /* Merging achieves nothing. */ + free (merged_notes); + merged_notes = NULL; + merge_notes = FALSE; + merged_size = 0; + } + else + { + if (osec->output_section == NULL + || ! bfd_set_section_size (obfd, osec->output_section, merged_size)) { - bfd_nonfatal_message (NULL, obfd, padd->section, NULL); - return FALSE; + bfd_nonfatal_message (NULL, obfd, osec, _("warning: failed to set merged notes size")); + free (merged_notes); + merged_notes = NULL; + merge_notes = FALSE; + merged_size = 0; } } } } } - if (gnu_debuglink_filename != NULL) + if (dump_sections != NULL) { - gnu_debuglink_section = bfd_create_gnu_debuglink_section - (obfd, gnu_debuglink_filename); + struct section_add * pdump; - if (gnu_debuglink_section == NULL) + for (pdump = dump_sections; pdump != NULL; pdump = pdump->next) { - bfd_nonfatal_message (NULL, obfd, NULL, - _("cannot create debug link section `%s'"), - gnu_debuglink_filename); - return FALSE; - } + osec = bfd_get_section_by_name (ibfd, pdump->name); + if (osec == NULL) + { + bfd_nonfatal_message (NULL, ibfd, NULL, + _("can't dump section '%s' - it does not exist"), + pdump->name); + continue; + } + + if ((bfd_get_section_flags (ibfd, osec) & SEC_HAS_CONTENTS) == 0) + { + bfd_nonfatal_message (NULL, ibfd, osec, + _("can't dump section - it has no contents")); + continue; + } + + bfd_size_type size = bfd_get_section_size (osec); + if (size == 0) + { + bfd_nonfatal_message (NULL, ibfd, osec, + _("can't dump section - it is empty")); + continue; + } + + FILE * f; + f = fopen (pdump->filename, FOPEN_WB); + if (f == NULL) + { + bfd_nonfatal_message (pdump->filename, NULL, NULL, + _("could not open section dump file")); + continue; + } - /* Special processing for PE format files. We - have no way to distinguish PE from COFF here. */ - if (bfd_get_flavour (obfd) == bfd_target_coff_flavour) - { - bfd_vma debuglink_vma; - asection * highest_section; - asection * sec; - - /* The PE spec requires that all sections be adjacent and sorted - in ascending order of VMA. It also specifies that debug - sections should be last. This is despite the fact that debug - sections are not loaded into memory and so in theory have no - use for a VMA. - - This means that the debuglink section must be given a non-zero - VMA which makes it contiguous with other debug sections. So - walk the current section list, find the section with the - highest VMA and start the debuglink section after that one. */ - for (sec = obfd->sections, highest_section = NULL; - sec != NULL; - sec = sec->next) - if (sec->vma > 0 - && (highest_section == NULL - || sec->vma > highest_section->vma)) - highest_section = sec; - - if (highest_section) - debuglink_vma = BFD_ALIGN (highest_section->vma - + highest_section->size, - /* FIXME: We ought to be using - COFF_PAGE_SIZE here or maybe - bfd_get_section_alignment() (if it - was set) but since this is for PE - and we know the required alignment - it is easier just to hard code it. */ - 0x1000); + bfd_byte *contents; + if (bfd_malloc_and_get_section (ibfd, osec, &contents)) + { + if (fwrite (contents, 1, size, f) != size) + { + non_fatal (_("error writing section contents to %s (error: %s)"), + pdump->filename, + strerror (errno)); + free (contents); + fclose (f); + return FALSE; + } + } else - /* Umm, not sure what to do in this case. */ - debuglink_vma = 0x1000; + bfd_nonfatal_message (NULL, ibfd, osec, + _("could not retrieve section contents")); - bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma); + fclose (f); + free (contents); } } - if (bfd_count_sections (obfd) != 0 + if (gnu_debuglink_filename != NULL) + { + /* PR 15125: Give a helpful warning message if + the debuglink section already exists, and + allow the rest of the copy to complete. */ + if (bfd_get_section_by_name (obfd, ".gnu_debuglink")) + { + non_fatal (_("%s: debuglink section already exists"), + bfd_get_filename (obfd)); + gnu_debuglink_filename = NULL; + } + else + { + gnu_debuglink_section = bfd_create_gnu_debuglink_section + (obfd, gnu_debuglink_filename); + + if (gnu_debuglink_section == NULL) + { + bfd_nonfatal_message (NULL, obfd, NULL, + _("cannot create debug link section `%s'"), + gnu_debuglink_filename); + return FALSE; + } + + /* Special processing for PE format files. We + have no way to distinguish PE from COFF here. */ + if (bfd_get_flavour (obfd) == bfd_target_coff_flavour) + { + bfd_vma debuglink_vma; + asection * highest_section; + + /* The PE spec requires that all sections be adjacent and sorted + in ascending order of VMA. It also specifies that debug + sections should be last. This is despite the fact that debug + sections are not loaded into memory and so in theory have no + use for a VMA. + + This means that the debuglink section must be given a non-zero + VMA which makes it contiguous with other debug sections. So + walk the current section list, find the section with the + highest VMA and start the debuglink section after that one. */ + for (osec = obfd->sections, highest_section = NULL; + osec != NULL; + osec = osec->next) + if (osec->vma > 0 + && (highest_section == NULL + || osec->vma > highest_section->vma)) + highest_section = osec; + + if (highest_section) + debuglink_vma = BFD_ALIGN (highest_section->vma + + highest_section->size, + /* FIXME: We ought to be using + COFF_PAGE_SIZE here or maybe + bfd_get_section_alignment() (if it + was set) but since this is for PE + and we know the required alignment + it is easier just to hard code it. */ + 0x1000); + else + /* Umm, not sure what to do in this case. */ + debuglink_vma = 0x1000; + + bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma); + } + } + } + + c = bfd_count_sections (obfd); + if (c != 0 && (gap_fill_set || pad_to_set)) { asection **set; - unsigned int c, i; /* We must fill in gaps between the sections and/or we must pad the last section to a specified address. We do this by @@ -1736,7 +2961,6 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) increasing the section sizes as required to fill the gaps. We write out the gap contents below. */ - c = bfd_count_sections (obfd); osections = (asection **) xmalloc (c * sizeof (asection *)); set = osections; bfd_map_over_sections (obfd, get_sections, &set); @@ -1815,6 +3039,8 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) || strip_symbols == STRIP_ALL || strip_symbols == STRIP_UNNEEDED || strip_symbols == STRIP_NONDEBUG + || strip_symbols == STRIP_DWO + || strip_symbols == STRIP_NONDWO || discard_locals != LOCALS_UNDEF || localize_hidden || htab_elements (strip_specific_htab) != 0 @@ -1823,14 +3049,16 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) || htab_elements (globalize_specific_htab) != 0 || htab_elements (keepglobal_specific_htab) != 0 || htab_elements (weaken_specific_htab) != 0 + || htab_elements (redefine_specific_htab) != 0 || prefix_symbols_string || sections_removed || sections_copied || convert_debugging || change_leading_char || remove_leading_char - || redefine_sym_list - || weaken) + || section_rename_list + || weaken + || add_symbols) { /* Mark symbols used in output relocations so that they are kept, even if they are local labels or static symbols. @@ -1841,10 +3069,19 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) ignore input sections which have no corresponding output section. */ if (strip_symbols != STRIP_ALL) - bfd_map_over_sections (ibfd, - mark_symbols_used_in_relocations, - isympp); - osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *)); + { + bfd_set_error (bfd_error_no_error); + bfd_map_over_sections (ibfd, + mark_symbols_used_in_relocations, + isympp); + if (bfd_get_error () != bfd_error_no_error) + { + status = 1; + return FALSE; + } + } + + osympp = (asymbol **) xmalloc ((symcount + add_symbols + 1) * sizeof (asymbol *)); symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount); } @@ -1859,6 +3096,9 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) bfd_set_symtab (obfd, osympp, symcount); + /* This has to happen before section positions are set. */ + bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd); + /* This has to happen after the symbol table has been set. */ bfd_map_over_sections (ibfd, copy_section, obfd); @@ -1877,6 +3117,42 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) } } + if (update_sections != NULL) + { + struct section_add *pupdate; + + for (pupdate = update_sections; + pupdate != NULL; + pupdate = pupdate->next) + { + osec = pupdate->section->output_section; + if (! bfd_set_section_contents (obfd, osec, pupdate->contents, + 0, pupdate->size)) + { + bfd_nonfatal_message (NULL, obfd, osec, NULL); + return FALSE; + } + } + } + + if (merge_notes) + { + osec = bfd_get_section_by_name (obfd, GNU_BUILD_ATTRS_SECTION_NAME); + if (osec && is_merged_note_section (obfd, osec)) + { + if (! bfd_set_section_contents (obfd, osec, merged_notes, 0, merged_size)) + { + bfd_nonfatal_message (NULL, obfd, osec, _("error: failed to copy merged notes into output")); + return FALSE; + } + } + else if (! is_strip) + bfd_nonfatal_message (NULL, obfd, osec, _("could not find any mergeable note sections")); + free (merged_notes); + merged_notes = NULL; + merge_notes = FALSE; + } + if (gnu_debuglink_filename != NULL) { if (! bfd_fill_in_gnu_debuglink_section @@ -1892,7 +3168,6 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) if (gap_fill_set || pad_to_set) { bfd_byte *buf; - int c, i; /* Fill in the gaps. */ if (max_gap > 8192) @@ -1924,6 +3199,7 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) off, now)) { bfd_nonfatal_message (NULL, obfd, osections[i], NULL); + free (buf); return FALSE; } @@ -1932,12 +3208,11 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) } } } - } - /* Do not copy backend data if --extract-symbol is passed; anything - that needs to look at the section contents will fail. */ - if (extract_symbol) - return TRUE; + free (buf); + free (gaps); + gaps = NULL; + } /* Allow the BFD backend to copy any private data it understands from the input BFD to the output BFD. This is done last to @@ -1997,12 +3272,18 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, /* Make a temp directory to hold the contents. */ dir = make_tempdir (bfd_get_filename (obfd)); if (dir == NULL) - fatal (_("cannot create tempdir for archive copying (error: %s)"), + fatal (_("cannot create tempdir for archive copying (error: %s)"), strerror (errno)); - obfd->has_armap = ibfd->has_armap; + if (strip_symbols == STRIP_ALL) + obfd->has_armap = FALSE; + else + obfd->has_armap = ibfd->has_armap; obfd->is_thin_archive = ibfd->is_thin_archive; + if (deterministic) + obfd->flags |= BFD_DETERMINISTIC_OUTPUT; + list = NULL; this_element = bfd_openr_next_archived_file (ibfd, NULL); @@ -2011,7 +3292,7 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, { status = 1; bfd_nonfatal_message (NULL, obfd, NULL, NULL); - return; + goto cleanup_and_exit; } while (!status && this_element != NULL) @@ -2022,6 +3303,17 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, struct stat buf; int stat_status = 0; bfd_boolean del = TRUE; + bfd_boolean ok_object; + + /* PR binutils/17533: Do not allow directory traversal + outside of the current directory tree by archive members. */ + if (! is_valid_archive_path (bfd_get_filename (this_element))) + { + non_fatal (_("illegal pathname found in archive member: %s"), + bfd_get_filename (this_element)); + status = 1; + goto cleanup_and_exit; + } /* Create an output file for this member. */ output_name = concat (dir, "/", @@ -2030,17 +3322,23 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, /* If the file already exists, make another temp dir. */ if (stat (output_name, &buf) >= 0) { - output_name = make_tempdir (output_name); - if (output_name == NULL) - fatal (_("cannot create tempdir for archive copying (error: %s)"), - strerror (errno)); + char * tmpdir = make_tempdir (output_name); + + free (output_name); + if (tmpdir == NULL) + { + non_fatal (_("cannot create tempdir for archive copying (error: %s)"), + strerror (errno)); + status = 1; + goto cleanup_and_exit; + } l = (struct name_list *) xmalloc (sizeof (struct name_list)); - l->name = output_name; + l->name = tmpdir; l->next = list; l->obfd = NULL; list = l; - output_name = concat (output_name, "/", + output_name = concat (tmpdir, "/", bfd_get_filename (this_element), (char *) 0); } @@ -2059,44 +3357,42 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, l->obfd = NULL; list = l; - if (bfd_check_format (this_element, bfd_object)) + ok_object = bfd_check_format (this_element, bfd_object); + if (!ok_object) + bfd_nonfatal_message (NULL, this_element, NULL, + _("Unable to recognise the format of file")); + + /* PR binutils/3110: Cope with archives + containing multiple target types. */ + if (force_output_target || !ok_object) + output_bfd = bfd_openw (output_name, output_target); + else + output_bfd = bfd_openw (output_name, bfd_get_target (this_element)); + + if (output_bfd == NULL) { - /* PR binutils/3110: Cope with archives - containing multiple target types. */ - if (force_output_target) - output_bfd = bfd_openw (output_name, output_target); - else - output_bfd = bfd_openw (output_name, bfd_get_target (this_element)); + bfd_nonfatal_message (output_name, NULL, NULL, NULL); + status = 1; + goto cleanup_and_exit; + } - if (output_bfd == NULL) + if (ok_object) + { + del = !copy_object (this_element, output_bfd, input_arch); + + if (del && bfd_get_arch (this_element) == bfd_arch_unknown) + /* Try again as an unknown object file. */ + ok_object = FALSE; + else if (!bfd_close (output_bfd)) { bfd_nonfatal_message (output_name, NULL, NULL, NULL); + /* Error in new object file. Don't change archive. */ status = 1; - return; } - - del = ! copy_object (this_element, output_bfd, input_arch); - - if (! del - || bfd_get_arch (this_element) != bfd_arch_unknown) - { - if (!bfd_close (output_bfd)) - { - bfd_nonfatal_message (output_name, NULL, NULL, NULL); - /* Error in new object file. Don't change archive. */ - status = 1; - } - } - else - goto copy_unknown_element; } - else - { - bfd_nonfatal_message (NULL, this_element, NULL, - _("Unable to recognise the format of file")); - output_bfd = bfd_openw (output_name, output_target); -copy_unknown_element: + if (!ok_object) + { del = !copy_unknown_object (this_element, output_bfd); if (!bfd_close_all_done (output_bfd)) { @@ -2138,7 +3434,6 @@ copy_unknown_element: { status = 1; bfd_nonfatal_message (filename, NULL, NULL, NULL); - return; } filename = bfd_get_filename (ibfd); @@ -2146,20 +3441,27 @@ copy_unknown_element: { status = 1; bfd_nonfatal_message (filename, NULL, NULL, NULL); - return; } + cleanup_and_exit: /* Delete all the files that we opened. */ - for (l = list; l != NULL; l = l->next) - { - if (l->obfd == NULL) - rmdir (l->name); - else - { - bfd_close (l->obfd); - unlink (l->name); - } - } + { + struct name_list * next; + + for (l = list; l != NULL; l = next) + { + if (l->obfd == NULL) + rmdir (l->name); + else + { + bfd_close (l->obfd); + unlink (l->name); + } + next = l->next; + free (l); + } + } + rmdir (dir); } @@ -2210,7 +3512,14 @@ copy_file (const char *input_filename, const char *output_filename, switch (do_debug_sections) { case compress: + case compress_zlib: + case compress_gnu_zlib: + case compress_gabi_zlib: ibfd->flags |= BFD_COMPRESS; + /* Don't check if input is ELF here since this information is + only available after bfd_check_format_matches is called. */ + if (do_debug_sections != compress_gnu_zlib) + ibfd->flags |= BFD_COMPRESS_GABI; break; case decompress: ibfd->flags |= BFD_DECOMPRESS; @@ -2219,13 +3528,26 @@ copy_file (const char *input_filename, const char *output_filename, break; } + switch (do_elf_stt_common) + { + case elf_stt_common: + ibfd->flags |= BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON; + break; + break; + case no_elf_stt_common: + ibfd->flags |= BFD_CONVERT_ELF_COMMON; + break; + default: + break; + } + if (bfd_check_format (ibfd, bfd_archive)) { bfd_boolean force_output_target; bfd *obfd; /* bfd_get_target does not return the correct value until - bfd_check_format succeeds. */ + bfd_check_format succeeds. */ if (output_target == NULL) { output_target = bfd_get_target (ibfd); @@ -2252,7 +3574,7 @@ copy_file (const char *input_filename, const char *output_filename, do_copy: /* bfd_get_target does not return the correct value until - bfd_check_format succeeds. */ + bfd_check_format succeeds. */ if (output_target == NULL) output_target = bfd_get_target (ibfd); @@ -2269,7 +3591,11 @@ copy_file (const char *input_filename, const char *output_filename, if (! copy_object (ibfd, obfd, input_arch)) status = 1; - if (!bfd_close (obfd)) + /* PR 17512: file: 0f15796a. + If the file could not be copied it may not be in a writeable + state. So use bfd_close_all_done to avoid the possibility of + writing uninitialised data into the file. */ + if (! (status ? bfd_close_all_done (obfd) : bfd_close (obfd))) { status = 1; bfd_nonfatal_message (output_filename, NULL, NULL, NULL); @@ -2349,24 +3675,19 @@ add_section_rename (const char * old_name, const char * new_name, } /* Check the section rename list for a new name of the input section - ISECTION. Return the new name if one is found. - Also set RETURNED_FLAGS to the flags to be used for this section. */ + called OLD_NAME. Returns the new name if one is found and sets + RETURNED_FLAGS if non-NULL to the flags to be used for this section. */ static const char * -find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection, - flagword * returned_flags) +find_section_rename (const char *old_name, flagword *returned_flags) { - const char * old_name = bfd_section_name (ibfd, isection); - section_rename * srename; - - /* Default to using the flags of the input section. */ - * returned_flags = bfd_get_section_flags (ibfd, isection); + const section_rename *srename; for (srename = section_rename_list; srename != NULL; srename = srename->next) if (strcmp (srename->old_name, old_name) == 0) { - if (srename->flags != (flagword) -1) - * returned_flags = srename->flags; + if (returned_flags != NULL && srename->flags != (flagword) -1) + *returned_flags = srename->flags; return srename->new_name; } @@ -2415,12 +3736,10 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) if (is_strip_section (ibfd, isection)) return; - p = find_section_list (bfd_section_name (ibfd, isection), FALSE); - if (p != NULL) - p->used = TRUE; - /* Get the, possibly new, name of the output section. */ - name = find_section_rename (ibfd, isection, & flags); + name = bfd_section_name (ibfd, isection); + flags = bfd_get_section_flags (ibfd, isection); + name = find_section_rename (name, &flags); /* Prefix sections. */ if ((prefix_alloc_sections_string) @@ -2440,12 +3759,14 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) } make_nobits = FALSE; - if (p != NULL && p->set_flags) + + p = find_section_list (bfd_section_name (ibfd, isection), FALSE, + SECTION_CONTEXT_SET_FLAGS); + if (p != NULL) flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC)); else if (strip_symbols == STRIP_NONDEBUG && (flags & (SEC_ALLOC | SEC_GROUP)) != 0 - && !(ibfd->xvec->flavour == bfd_target_elf_flavour - && elf_section_type (isection) == SHT_NOTE)) + && !is_nondebug_keep_contents_section (ibfd, isection)) { flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP); if (obfd->xvec->flavour == bfd_target_elf_flavour) @@ -2472,6 +3793,7 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) elf_section_type (osection) = SHT_NOBITS; size = bfd_section_size (ibfd, isection); + size = bfd_convert_section_size (ibfd, isection, obfd, size); if (copy_byte >= 0) size = (size + interleave - 1) / interleave * copy_width; else if (extract_symbol) @@ -2483,10 +3805,15 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) } vma = bfd_section_vma (ibfd, isection); - if (p != NULL && p->change_vma == CHANGE_MODIFY) - vma += p->vma_val; - else if (p != NULL && p->change_vma == CHANGE_SET) - vma = p->vma_val; + p = find_section_list (bfd_section_name (ibfd, isection), FALSE, + SECTION_CONTEXT_ALTER_VMA | SECTION_CONTEXT_SET_VMA); + if (p != NULL) + { + if (p->context & SECTION_CONTEXT_SET_VMA) + vma = p->vma_val; + else + vma += p->vma_val; + } else vma += change_section_address; @@ -2497,14 +3824,14 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) } lma = isection->lma; - if ((p != NULL) && p->change_lma != CHANGE_IGNORE) + p = find_section_list (bfd_section_name (ibfd, isection), FALSE, + SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_SET_LMA); + if (p != NULL) { - if (p->change_lma == CHANGE_MODIFY) + if (p->context & SECTION_CONTEXT_ALTER_LMA) lma += p->lma_val; - else if (p->change_lma == CHANGE_SET) - lma = p->lma_val; else - abort (); + lma = p->lma_val; } else lma += change_section_address; @@ -2524,17 +3851,15 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) /* Copy merge entity size. */ osection->entsize = isection->entsize; + /* Copy compress status. */ + osection->compress_status = isection->compress_status; + /* This used to be mangle_section; we do here to avoid using bfd_get_section_by_name since some formats allow multiple sections with the same name. */ isection->output_section = osection; isection->output_offset = 0; - /* Do not copy backend data if --extract-symbol is passed; anything - that needs to look at the section contents will fail. */ - if (extract_symbol) - return; - if ((isection->flags & SEC_GROUP) != 0) { asymbol *gsym = group_signature (isection); @@ -2558,52 +3883,115 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) /* All went well. */ return; -loser: + loser: status = 1; bfd_nonfatal_message (NULL, obfd, osection, err); } -/* Copy the data of input section ISECTION of IBFD - to an output section with the same name in OBFD. - If stripping then don't copy any relocation info. */ +/* Return TRUE if input section ISECTION should be skipped. */ -static void -copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) +static bfd_boolean +skip_section (bfd *ibfd, sec_ptr isection, bfd_boolean skip_copy) { - bfd *obfd = (bfd *) obfdarg; - struct section_list *p; - arelent **relpp; - long relcount; sec_ptr osection; bfd_size_type size; - long relsize; flagword flags; /* If we have already failed earlier on, do not keep on generating complaints now. */ if (status != 0) - return; + return TRUE; + + if (extract_symbol) + return TRUE; if (is_strip_section (ibfd, isection)) - return; + return TRUE; + + if (is_update_section (ibfd, isection)) + return TRUE; + + /* When merging a note section we skip the copying of the contents, + but not the copying of the relocs associated with the contents. */ + if (skip_copy && is_merged_note_section (ibfd, isection)) + return TRUE; flags = bfd_get_section_flags (ibfd, isection); if ((flags & SEC_GROUP) != 0) - return; + return TRUE; osection = isection->output_section; size = bfd_get_section_size (isection); if (size == 0 || osection == 0) - return; + return TRUE; - if (extract_symbol) + return FALSE; +} + +/* Add section SECTION_PATTERN to the list of sections that will have their + relocations removed. */ + +static void +handle_remove_relocations_option (const char *section_pattern) +{ + find_section_list (section_pattern, TRUE, SECTION_CONTEXT_REMOVE_RELOCS); +} + +/* Return TRUE if ISECTION from IBFD should have its relocations removed, + otherwise return FALSE. If the user has requested that relocations be + removed from a section that does not have relocations then this + function will still return TRUE. */ + +static bfd_boolean +discard_relocations (bfd *ibfd ATTRIBUTE_UNUSED, asection *isection) +{ + return (find_section_list (bfd_section_name (ibfd, isection), FALSE, + SECTION_CONTEXT_REMOVE_RELOCS) != NULL); +} + +/* Wrapper for dealing with --remove-section (-R) command line arguments. + A special case is detected here, if the user asks to remove a relocation + section (one starting with ".rela" or ".rel") then this removal must + be done using a different technique in a relocatable object. */ + +static void +handle_remove_section_option (const char *section_pattern) +{ + find_section_list (section_pattern, TRUE, SECTION_CONTEXT_REMOVE); + if (strncmp (section_pattern, ".rel", 4) == 0) + { + section_pattern += 4; + if (*section_pattern == 'a') + section_pattern++; + if (*section_pattern) + handle_remove_relocations_option (section_pattern); + } + sections_removed = TRUE; +} + +/* Copy relocations in input section ISECTION of IBFD to an output + section with the same name in OBFDARG. If stripping then don't + copy any relocation info. */ + +static void +copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg) +{ + bfd *obfd = (bfd *) obfdarg; + long relsize; + arelent **relpp; + long relcount; + sec_ptr osection; + + if (skip_section (ibfd, isection, FALSE)) return; - p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE); + osection = isection->output_section; - /* Core files do not need to be relocated. */ - if (bfd_get_format (obfd) == bfd_core) + /* Core files and DWO files do not need to be relocated. */ + if (bfd_get_format (obfd) == bfd_core + || strip_symbols == STRIP_NONDWO + || discard_relocations (ibfd, isection)) relsize = 0; else { @@ -2624,17 +4012,30 @@ copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) } if (relsize == 0) - bfd_set_reloc (obfd, osection, NULL, 0); + { + bfd_set_reloc (obfd, osection, NULL, 0); + osection->flags &= ~SEC_RELOC; + } else { - relpp = (arelent **) xmalloc (relsize); - relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); - if (relcount < 0) + if (isection->orelocation != NULL) { - status = 1; - bfd_nonfatal_message (NULL, ibfd, isection, - _("relocation count is negative")); - return; + /* Some other function has already set up the output relocs + for us, so scan those instead of the default relocs. */ + relcount = isection->reloc_count; + relpp = isection->orelocation; + } + else + { + relpp = (arelent **) xmalloc (relsize); + relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); + if (relcount < 0) + { + status = 1; + bfd_nonfatal_message (NULL, ibfd, isection, + _("relocation count is negative")); + return; + } } if (strip_symbols == STRIP_ALL) @@ -2647,28 +4048,63 @@ copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) temp_relpp = (arelent **) xmalloc (relsize); for (i = 0; i < relcount; i++) - if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr), - keep_specific_htab)) - temp_relpp [temp_relcount++] = relpp [i]; + { + /* PR 17512: file: 9e907e0c. */ + if (relpp[i]->sym_ptr_ptr + /* PR 20096 */ + && * relpp[i]->sym_ptr_ptr) + if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr), + keep_specific_htab)) + temp_relpp [temp_relcount++] = relpp [i]; + } relcount = temp_relcount; - free (relpp); + if (isection->orelocation == NULL) + free (relpp); relpp = temp_relpp; } bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount); if (relcount == 0) - free (relpp); + { + osection->flags &= ~SEC_RELOC; + free (relpp); + } } +} + +/* Copy the data of input section ISECTION of IBFD + to an output section with the same name in OBFD. */ + +static void +copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) +{ + bfd *obfd = (bfd *) obfdarg; + struct section_list *p; + sec_ptr osection; + bfd_size_type size; + + if (skip_section (ibfd, isection, TRUE)) + return; + + osection = isection->output_section; + /* The output SHF_COMPRESSED section size is different from input if + ELF classes of input and output aren't the same. We can't use + the output section size since --interleave will shrink the output + section. Size will be updated if the section is converted. */ + size = bfd_get_section_size (isection); if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS) { bfd_byte *memhunk = NULL; - if (!bfd_get_full_section_contents (ibfd, isection, &memhunk)) + if (!bfd_get_full_section_contents (ibfd, isection, &memhunk) + || !bfd_convert_section_contents (ibfd, isection, obfd, + &memhunk, &size)) { status = 1; bfd_nonfatal_message (NULL, ibfd, isection, NULL); + free (memhunk); return; } @@ -2706,23 +4142,41 @@ copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) char *end = (char *) memhunk + size; int i; + /* If the section address is not exactly divisible by the interleave, + then we must bias the from address. If the copy_byte is less than + the bias, then we must skip forward one interleave, and increment + the final lma. */ + int extra = isection->lma % interleave; + from -= extra; + if (copy_byte < extra) + from += interleave; + for (; from < end; from += interleave) for (i = 0; i < copy_width; i++) - *to++ = from[i]; + { + if (&from[i] >= end) + break; + *to++ = from[i]; + } size = (size + interleave - 1 - copy_byte) / interleave * copy_width; osection->lma /= interleave; + if (copy_byte < extra) + osection->lma++; } if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size)) { status = 1; bfd_nonfatal_message (NULL, obfd, osection, NULL); + free (memhunk); return; } free (memhunk); } - else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0) + else if ((p = find_section_list (bfd_get_section_name (ibfd, isection), + FALSE, SECTION_CONTEXT_SET_FLAGS)) != NULL + && (p->flags & SEC_HAS_CONTENTS) != 0) { void *memhunk = xmalloc (size); @@ -2737,6 +4191,7 @@ copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) { status = 1; bfd_nonfatal_message (NULL, obfd, osection, NULL); + free (memhunk); return; } free (memhunk); @@ -2836,7 +4291,10 @@ mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg) special bfd section symbols, then mark it with BSF_KEEP. */ for (i = 0; i < relcount; i++) { - if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol + /* See PRs 20923 and 20930 for reproducers for the NULL tests. */ + if (relpp[i]->sym_ptr_ptr != NULL + && * relpp[i]->sym_ptr_ptr != NULL + && *relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol) (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP; @@ -2853,13 +4311,10 @@ write_debugging_info (bfd *obfd, void *dhandle, long *symcountp ATTRIBUTE_UNUSED, asymbol ***symppp ATTRIBUTE_UNUSED) { - if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour) - return write_ieee_debugging_info (obfd, dhandle); - if (bfd_get_flavour (obfd) == bfd_target_coff_flavour || bfd_get_flavour (obfd) == bfd_target_elf_flavour) { - bfd_byte *syms, *strings; + bfd_byte *syms, *strings = NULL; bfd_size_type symsize, stringsize; asection *stabsec, *stabstrsec; flagword flags; @@ -2881,19 +4336,21 @@ write_debugging_info (bfd *obfd, void *dhandle, { bfd_nonfatal_message (NULL, obfd, NULL, _("can't create debugging section")); + free (strings); return FALSE; } /* We can get away with setting the section contents now because - the next thing the caller is going to do is copy over the - real sections. We may someday have to split the contents - setting out of this function. */ + the next thing the caller is going to do is copy over the + real sections. We may someday have to split the contents + setting out of this function. */ if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize) || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0, stringsize)) { bfd_nonfatal_message (NULL, obfd, NULL, _("can't set debugging section contents")); + free (strings); return FALSE; } @@ -2902,10 +4359,19 @@ write_debugging_info (bfd *obfd, void *dhandle, bfd_nonfatal_message (NULL, obfd, NULL, _("don't know how to write debugging information for %s"), - bfd_get_target (obfd)); + bfd_get_target (obfd)); return FALSE; } +/* If neither -D nor -U was specified explicitly, + then use the configured default. */ +static void +default_deterministic (void) +{ + if (deterministic < 0) + deterministic = DEFAULT_AR_DETERMINISTIC; +} + static int strip_main (int argc, char *argv[]) { @@ -2915,10 +4381,11 @@ strip_main (int argc, char *argv[]) bfd_boolean formats_info = FALSE; int c; int i; - struct section_list *p; char *output_file = NULL; - while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw", + merge_notes = TRUE; + + while ((c = getopt_long (argc, argv, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU", strip_options, (int *) 0)) != EOF) { switch (c) @@ -2933,9 +4400,10 @@ strip_main (int argc, char *argv[]) input_target = output_target = optarg; break; case 'R': - p = find_section_list (optarg, TRUE); - p->remove = TRUE; - sections_removed = TRUE; + handle_remove_section_option (optarg); + break; + case OPTION_REMOVE_RELOCS: + handle_remove_relocations_option (optarg); break; case 's': strip_symbols = STRIP_ALL; @@ -2945,12 +4413,21 @@ strip_main (int argc, char *argv[]) case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */ strip_symbols = STRIP_DEBUG; break; + case OPTION_STRIP_DWO: + strip_symbols = STRIP_DWO; + break; case OPTION_STRIP_UNNEEDED: strip_symbols = STRIP_UNNEEDED; break; case 'K': add_specific_symbol (optarg, keep_specific_htab); break; + case 'M': + merge_notes = TRUE; + break; + case OPTION_NO_MERGE_NOTES: + merge_notes = FALSE; + break; case 'N': add_specific_symbol (optarg, strip_specific_htab); break; @@ -2960,6 +4437,12 @@ strip_main (int argc, char *argv[]) case 'p': preserve_dates = TRUE; break; + case 'D': + deterministic = TRUE; + break; + case 'U': + deterministic = FALSE; + break; case 'x': discard_locals = LOCALS_ALL; break; @@ -3004,6 +4487,8 @@ strip_main (int argc, char *argv[]) if (show_version) print_version ("strip"); + default_deterministic (); + /* Default is to strip all symbols. */ if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF @@ -3086,7 +4571,7 @@ set_pe_subsystem (const char *s) } v[] = { - { "native", 0, IMAGE_SUBSYSTEM_NATIVE }, + { "native", 0, IMAGE_SUBSYSTEM_NATIVE }, { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI }, { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI }, { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI }, @@ -3157,6 +4642,8 @@ set_pe_subsystem (const char *s) pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; break; } + if (s != subsystem) + free ((char *) subsystem); } /* Convert EFI target to PEI target. */ @@ -3182,6 +4669,79 @@ convert_efi_target (char *efi) } } +/* Allocate and return a pointer to a struct section_add, initializing the + structure using ARG, a string in the format "sectionname=filename". + The returned structure will have its next pointer set to NEXT. The + OPTION field is the name of the command line option currently being + parsed, and is only used if an error needs to be reported. */ + +static struct section_add * +init_section_add (const char *arg, + struct section_add *next, + const char *option) +{ + struct section_add *pa; + const char *s; + + s = strchr (arg, '='); + if (s == NULL) + fatal (_("bad format for %s"), option); + + pa = (struct section_add *) xmalloc (sizeof (struct section_add)); + pa->name = xstrndup (arg, s - arg); + pa->filename = s + 1; + pa->next = next; + pa->contents = NULL; + pa->size = 0; + + return pa; +} + +/* Load the file specified in PA, allocating memory to hold the file + contents, and store a pointer to the allocated memory in the contents + field of PA. The size field of PA is also updated. All errors call + FATAL. */ + +static void +section_add_load_file (struct section_add *pa) +{ + size_t off, alloc; + FILE *f; + + /* We don't use get_file_size so that we can do + --add-section .note.GNU_stack=/dev/null + get_file_size doesn't work on /dev/null. */ + + f = fopen (pa->filename, FOPEN_RB); + if (f == NULL) + fatal (_("cannot open: %s: %s"), + pa->filename, strerror (errno)); + + off = 0; + alloc = 4096; + pa->contents = (bfd_byte *) xmalloc (alloc); + while (!feof (f)) + { + off_t got; + + if (off == alloc) + { + alloc <<= 1; + pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc); + } + + got = fread (pa->contents + off, 1, alloc - off, f); + if (ferror (f)) + fatal (_("%s: fread failed"), pa->filename); + + off += got; + } + + pa->size = off; + + fclose (f); +} + static int copy_main (int argc, char *argv[]) { @@ -3193,12 +4753,13 @@ copy_main (int argc, char *argv[]) bfd_boolean show_version = FALSE; bfd_boolean change_warn = TRUE; bfd_boolean formats_info = FALSE; + bfd_boolean use_globalize = FALSE; + bfd_boolean use_keep_global = FALSE; int c; - struct section_list *p; struct stat statbuf; const bfd_arch_info_type *input_arch = NULL; - while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w", + while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU", copy_options, (int *) 0)) != EOF) { switch (c) @@ -3247,19 +4808,16 @@ copy_main (int argc, char *argv[]) break; case 'j': - p = find_section_list (optarg, TRUE); - if (p->remove) - fatal (_("%s both copied and removed"), optarg); - p->copy = TRUE; + find_section_list (optarg, TRUE, SECTION_CONTEXT_COPY); sections_copied = TRUE; break; case 'R': - p = find_section_list (optarg, TRUE); - if (p->copy) - fatal (_("%s both copied and removed"), optarg); - p->remove = TRUE; - sections_removed = TRUE; + handle_remove_section_option (optarg); + break; + + case OPTION_REMOVE_RELOCS: + handle_remove_relocations_option (optarg); break; case 'S': @@ -3270,6 +4828,10 @@ copy_main (int argc, char *argv[]) strip_symbols = STRIP_DEBUG; break; + case OPTION_STRIP_DWO: + strip_symbols = STRIP_DWO; + break; + case OPTION_STRIP_UNNEEDED: strip_symbols = STRIP_UNNEEDED; break; @@ -3283,6 +4845,7 @@ copy_main (int argc, char *argv[]) break; case OPTION_ADD_GNU_DEBUGLINK: + long_section_names = ENABLE ; gnu_debuglink_filename = optarg; break; @@ -3290,6 +4853,13 @@ copy_main (int argc, char *argv[]) add_specific_symbol (optarg, keep_specific_htab); break; + case 'M': + merge_notes = TRUE; + break; + case OPTION_NO_MERGE_NOTES: + merge_notes = FALSE; + break; + case 'N': add_specific_symbol (optarg, strip_specific_htab); break; @@ -3303,10 +4873,12 @@ copy_main (int argc, char *argv[]) break; case OPTION_GLOBALIZE_SYMBOL: + use_globalize = TRUE; add_specific_symbol (optarg, globalize_specific_htab); break; case 'G': + use_keep_global = TRUE; add_specific_symbol (optarg, keepglobal_specific_htab); break; @@ -3318,6 +4890,14 @@ copy_main (int argc, char *argv[]) preserve_dates = TRUE; break; + case 'D': + deterministic = TRUE; + break; + + case 'U': + deterministic = FALSE; + break; + case 'w': wildcard = TRUE; break; @@ -3347,56 +4927,67 @@ copy_main (int argc, char *argv[]) break; case OPTION_ADD_SECTION: - { - const char *s; - size_t off, alloc; - struct section_add *pa; - FILE *f; - - s = strchr (optarg, '='); + add_sections = init_section_add (optarg, add_sections, + "--add-section"); + section_add_load_file (add_sections); + break; - if (s == NULL) - fatal (_("bad format for %s"), "--add-section"); + case OPTION_UPDATE_SECTION: + update_sections = init_section_add (optarg, update_sections, + "--update-section"); + section_add_load_file (update_sections); + break; - pa = (struct section_add *) xmalloc (sizeof (struct section_add)); - pa->name = xstrndup (optarg, s - optarg); - pa->filename = s + 1; + case OPTION_DUMP_SECTION: + dump_sections = init_section_add (optarg, dump_sections, + "--dump-section"); + break; - /* We don't use get_file_size so that we can do - --add-section .note.GNU_stack=/dev/null - get_file_size doesn't work on /dev/null. */ + case OPTION_ADD_SYMBOL: + { + char *s, *t; + struct addsym_node *newsym = xmalloc (sizeof *newsym); - f = fopen (pa->filename, FOPEN_RB); - if (f == NULL) - fatal (_("cannot open: %s: %s"), - pa->filename, strerror (errno)); + newsym->next = NULL; + s = strchr (optarg, '='); + if (s == NULL) + fatal (_("bad format for %s"), "--add-symbol"); + t = strchr (s + 1, ':'); - off = 0; - alloc = 4096; - pa->contents = (bfd_byte *) xmalloc (alloc); - while (!feof (f)) + newsym->symdef = xstrndup (optarg, s - optarg); + if (t) { - off_t got; - - if (off == alloc) - { - alloc <<= 1; - pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc); - } - - got = fread (pa->contents + off, 1, alloc - off, f); - if (ferror (f)) - fatal (_("%s: fread failed"), pa->filename); - - off += got; + newsym->section = xstrndup (s + 1, t - (s + 1)); + newsym->symval = strtol (t + 1, NULL, 0); + } + else + { + newsym->section = NULL; + newsym->symval = strtol (s + 1, NULL, 0); + t = s; } - pa->size = off; - - fclose (f); + t = strchr (t + 1, ','); + newsym->othersym = NULL; + if (t) + newsym->flags = parse_symflags (t+1, &newsym->othersym); + else + newsym->flags = BSF_GLOBAL; - pa->next = add_sections; - add_sections = pa; + /* Keep 'othersym' symbols at the front of the list. */ + if (newsym->othersym) + { + newsym->next = add_sym_list; + if (!add_sym_list) + add_sym_tail = &newsym->next; + add_sym_list = newsym; + } + else + { + *add_sym_tail = newsym; + add_sym_tail = &newsym->next; + } + add_symbols++; } break; @@ -3408,23 +4999,27 @@ copy_main (int argc, char *argv[]) case OPTION_CHANGE_SECTION_LMA: case OPTION_CHANGE_SECTION_VMA: { + struct section_list * p; + unsigned int context = 0; const char *s; int len; char *name; char *option = NULL; bfd_vma val; - enum change_action what = CHANGE_IGNORE; switch (c) { case OPTION_CHANGE_SECTION_ADDRESS: option = "--change-section-address"; + context = SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_ALTER_VMA; break; case OPTION_CHANGE_SECTION_LMA: option = "--change-section-lma"; + context = SECTION_CONTEXT_ALTER_LMA; break; case OPTION_CHANGE_SECTION_VMA: option = "--change-section-vma"; + context = SECTION_CONTEXT_ALTER_VMA; break; } @@ -3439,38 +5034,46 @@ copy_main (int argc, char *argv[]) fatal (_("bad format for %s"), option); } } + else + { + /* Correct the context. */ + switch (c) + { + case OPTION_CHANGE_SECTION_ADDRESS: + context = SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_SET_VMA; + break; + case OPTION_CHANGE_SECTION_LMA: + context = SECTION_CONTEXT_SET_LMA; + break; + case OPTION_CHANGE_SECTION_VMA: + context = SECTION_CONTEXT_SET_VMA; + break; + } + } len = s - optarg; name = (char *) xmalloc (len + 1); strncpy (name, optarg, len); name[len] = '\0'; - p = find_section_list (name, TRUE); + p = find_section_list (name, TRUE, context); val = parse_vma (s + 1, option); - - switch (*s) - { - case '=': what = CHANGE_SET; break; - case '-': val = - val; /* Drop through. */ - case '+': what = CHANGE_MODIFY; break; - } + if (*s == '-') + val = - val; switch (c) { case OPTION_CHANGE_SECTION_ADDRESS: - p->change_vma = what; - p->vma_val = val; - /* Drop through. */ + p->vma_val = val; + /* Fall through. */ case OPTION_CHANGE_SECTION_LMA: - p->change_lma = what; - p->lma_val = val; + p->lma_val = val; break; case OPTION_CHANGE_SECTION_VMA: - p->change_vma = what; - p->vma_val = val; + p->vma_val = val; break; } } @@ -3490,7 +5093,22 @@ copy_main (int argc, char *argv[]) break; case OPTION_COMPRESS_DEBUG_SECTIONS: - do_debug_sections = compress; + if (optarg) + { + if (strcasecmp (optarg, "none") == 0) + do_debug_sections = decompress; + else if (strcasecmp (optarg, "zlib") == 0) + do_debug_sections = compress_zlib; + else if (strcasecmp (optarg, "zlib-gnu") == 0) + do_debug_sections = compress_gnu_zlib; + else if (strcasecmp (optarg, "zlib-gabi") == 0) + do_debug_sections = compress_gabi_zlib; + else + fatal (_("unrecognized --compress-debug-sections type `%s'"), + optarg); + } + else + do_debug_sections = compress; break; case OPTION_DEBUGGING: @@ -3501,6 +5119,16 @@ copy_main (int argc, char *argv[]) do_debug_sections = decompress; break; + case OPTION_ELF_STT_COMMON: + if (strcasecmp (optarg, "yes") == 0) + do_elf_stt_common = elf_stt_common; + else if (strcasecmp (optarg, "no") == 0) + do_elf_stt_common = no_elf_stt_common; + else + fatal (_("unrecognized --elf-stt-common= option `%s'"), + optarg); + break; + case OPTION_GAP_FILL: { bfd_vma gap_fill_vma; @@ -3535,7 +5163,7 @@ copy_main (int argc, char *argv[]) case OPTION_REDEFINE_SYM: { - /* Push this redefinition onto redefine_symbol_list. */ + /* Insert this redefinition onto redefine_specific_htab. */ int len; const char *s; @@ -3556,7 +5184,7 @@ copy_main (int argc, char *argv[]) target = (char *) xmalloc (len + 1); strcpy (target, nextarg); - redefine_list_append ("--redefine-sym", source, target); + add_redefine_and_check ("--redefine-sym", source, target); free (source); free (target); @@ -3569,6 +5197,7 @@ copy_main (int argc, char *argv[]) case OPTION_SET_SECTION_FLAGS: { + struct section_list *p; const char *s; int len; char *name; @@ -3582,9 +5211,8 @@ copy_main (int argc, char *argv[]) strncpy (name, optarg, len); name[len] = '\0'; - p = find_section_list (name, TRUE); + p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_FLAGS); - p->set_flags = TRUE; p->flags = parse_flags (s + 1); } break; @@ -3639,23 +5267,26 @@ copy_main (int argc, char *argv[]) break; case OPTION_SREC_LEN: - Chunk = parse_vma (optarg, "--srec-len"); + _bfd_srec_len = parse_vma (optarg, "--srec-len"); break; case OPTION_SREC_FORCES3: - S3Forced = TRUE; + _bfd_srec_forceS3 = TRUE; break; case OPTION_STRIP_SYMBOLS: - add_specific_symbols (optarg, strip_specific_htab); + add_specific_symbols (optarg, strip_specific_htab, + &strip_specific_buffer); break; case OPTION_STRIP_UNNEEDED_SYMBOLS: - add_specific_symbols (optarg, strip_unneeded_htab); + add_specific_symbols (optarg, strip_unneeded_htab, + &strip_unneeded_buffer); break; case OPTION_KEEP_SYMBOLS: - add_specific_symbols (optarg, keep_specific_htab); + add_specific_symbols (optarg, keep_specific_htab, + &keep_specific_buffer); break; case OPTION_LOCALIZE_HIDDEN: @@ -3663,7 +5294,8 @@ copy_main (int argc, char *argv[]) break; case OPTION_LOCALIZE_SYMBOLS: - add_specific_symbols (optarg, localize_specific_htab); + add_specific_symbols (optarg, localize_specific_htab, + &localize_specific_buffer); break; case OPTION_LONG_SECTION_NAMES: @@ -3678,15 +5310,20 @@ copy_main (int argc, char *argv[]) break; case OPTION_GLOBALIZE_SYMBOLS: - add_specific_symbols (optarg, globalize_specific_htab); + use_globalize = TRUE; + add_specific_symbols (optarg, globalize_specific_htab, + &globalize_specific_buffer); break; case OPTION_KEEPGLOBAL_SYMBOLS: - add_specific_symbols (optarg, keepglobal_specific_htab); + use_keep_global = TRUE; + add_specific_symbols (optarg, keepglobal_specific_htab, + &keepglobal_specific_buffer); break; case OPTION_WEAKEN_SYMBOLS: - add_specific_symbols (optarg, weaken_specific_htab); + add_specific_symbols (optarg, weaken_specific_htab, + &weaken_specific_buffer); break; case OPTION_ALT_MACH_CODE: @@ -3727,77 +5364,81 @@ copy_main (int argc, char *argv[]) bfd_flags_to_set &= ~D_PAGED; break; + case OPTION_EXTRACT_DWO: + strip_symbols = STRIP_NONDWO; + break; + case OPTION_EXTRACT_SYMBOL: extract_symbol = TRUE; break; case OPTION_REVERSE_BYTES: - { - int prev = reverse_bytes; + { + int prev = reverse_bytes; - reverse_bytes = atoi (optarg); - if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0)) - fatal (_("number of bytes to reverse must be positive and even")); + reverse_bytes = atoi (optarg); + if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0)) + fatal (_("number of bytes to reverse must be positive and even")); - if (prev && prev != reverse_bytes) - non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"), - prev); - break; - } + if (prev && prev != reverse_bytes) + non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"), + prev); + break; + } case OPTION_FILE_ALIGNMENT: pe_file_alignment = parse_vma (optarg, "--file-alignment"); break; - + case OPTION_HEAP: - { - char *end; - pe_heap_reserve = strtoul (optarg, &end, 0); - if (end == optarg - || (*end != '.' && *end != '\0')) - non_fatal (_("%s: invalid reserve value for --heap"), - optarg); - else if (*end != '\0') - { - pe_heap_commit = strtoul (end + 1, &end, 0); - if (*end != '\0') - non_fatal (_("%s: invalid commit value for --heap"), - optarg); - } - } + { + char *end; + pe_heap_reserve = strtoul (optarg, &end, 0); + if (end == optarg + || (*end != '.' && *end != '\0')) + non_fatal (_("%s: invalid reserve value for --heap"), + optarg); + else if (*end != '\0') + { + pe_heap_commit = strtoul (end + 1, &end, 0); + if (*end != '\0') + non_fatal (_("%s: invalid commit value for --heap"), + optarg); + } + } break; - + case OPTION_IMAGE_BASE: pe_image_base = parse_vma (optarg, "--image-base"); break; - + case OPTION_SECTION_ALIGNMENT: pe_section_alignment = parse_vma (optarg, "--section-alignment"); break; - + case OPTION_SUBSYSTEM: set_pe_subsystem (optarg); break; - + case OPTION_STACK: - { - char *end; - pe_stack_reserve = strtoul (optarg, &end, 0); - if (end == optarg - || (*end != '.' && *end != '\0')) - non_fatal (_("%s: invalid reserve value for --stack"), - optarg); - else if (*end != '\0') - { - pe_stack_commit = strtoul (end + 1, &end, 0); - if (*end != '\0') - non_fatal (_("%s: invalid commit value for --stack"), - optarg); - } - } + { + char *end; + pe_stack_reserve = strtoul (optarg, &end, 0); + if (end == optarg + || (*end != '.' && *end != '\0')) + non_fatal (_("%s: invalid reserve value for --stack"), + optarg); + else if (*end != '\0') + { + pe_stack_commit = strtoul (end + 1, &end, 0); + if (*end != '\0') + non_fatal (_("%s: invalid commit value for --stack"), + optarg); + } + } break; - + case 0: /* We've been given a long option. */ break; @@ -3811,6 +5452,9 @@ copy_main (int argc, char *argv[]) } } + if (use_globalize && use_keep_global) + fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)")); + if (formats_info) { display_info (); @@ -3836,6 +5480,8 @@ copy_main (int argc, char *argv[]) if (optind + 1 < argc) output_filename = argv[optind + 1]; + default_deterministic (); + /* Default is to strip no symbols. */ if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF) strip_symbols = STRIP_NONE; @@ -3925,13 +5571,18 @@ copy_main (int argc, char *argv[]) else unlink_if_ordinary (tmpname); + if (tmpname != output_filename) + free (tmpname); + if (change_warn) { + struct section_list *p; + for (p = change_sections; p != NULL; p = p->next) { if (! p->used) { - if (p->change_vma != CHANGE_IGNORE) + if (p->context & (SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA)) { char buff [20]; @@ -3940,12 +5591,12 @@ copy_main (int argc, char *argv[]) /* xgettext:c-format */ non_fatal (_("%s %s%c0x%s never used"), "--change-section-vma", - p->name, - p->change_vma == CHANGE_SET ? '=' : '+', + p->pattern, + p->context & SECTION_CONTEXT_SET_VMA ? '=' : '+', buff); } - if (p->change_lma != CHANGE_IGNORE) + if (p->context & (SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA)) { char buff [20]; @@ -3954,14 +5605,35 @@ copy_main (int argc, char *argv[]) /* xgettext:c-format */ non_fatal (_("%s %s%c0x%s never used"), "--change-section-lma", - p->name, - p->change_lma == CHANGE_SET ? '=' : '+', + p->pattern, + p->context & SECTION_CONTEXT_SET_LMA ? '=' : '+', buff); } } } } + if (strip_specific_buffer) + free (strip_specific_buffer); + + if (strip_unneeded_buffer) + free (strip_unneeded_buffer); + + if (keep_specific_buffer) + free (keep_specific_buffer); + + if (localize_specific_buffer) + free (globalize_specific_buffer); + + if (globalize_specific_buffer) + free (globalize_specific_buffer); + + if (keepglobal_specific_buffer) + free (keepglobal_specific_buffer); + + if (weaken_specific_buffer) + free (weaken_specific_buffer); + return 0; } @@ -3987,7 +5659,8 @@ main (int argc, char *argv[]) strip_symbols = STRIP_UNDEF; discard_locals = LOCALS_UNDEF; - bfd_init (); + if (bfd_init () != BFD_INIT_MAGIC) + fatal (_("fatal error: libbfd ABI mismatch")); set_default_bfd_target (); if (is_strip < 0) @@ -4006,6 +5679,9 @@ main (int argc, char *argv[]) create_symbol_htabs (); + if (argv != NULL) + bfd_set_error_program_name (argv[0]); + if (is_strip) strip_main (argc, argv); else