| /* 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 |
| Free Software Foundation, Inc. |
| |
| This file is part of GNU Binutils. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 02110-1301, USA. */ |
| |
| #include "sysdep.h" |
| #include "bfd.h" |
| #include "progress.h" |
| #include "getopt.h" |
| #include "libiberty.h" |
| #include "bucomm.h" |
| #include "budbg.h" |
| #include "filenames.h" |
| #include "fnmatch.h" |
| #include "elf-bfd.h" |
| #include <sys/stat.h> |
| #include "libbfd.h" |
| |
| struct is_specified_symbol_predicate_data |
| { |
| const char *name; |
| bfd_boolean found; |
| }; |
| |
| /* A list to support redefine_sym. */ |
| struct redefine_node |
| { |
| char *source; |
| char *target; |
| struct redefine_node *next; |
| }; |
| |
| typedef struct section_rename |
| { |
| const char * old_name; |
| const char * new_name; |
| flagword flags; |
| struct section_rename * next; |
| } |
| section_rename; |
| |
| /* List of sections to be renamed. */ |
| static section_rename *section_rename_list; |
| |
| #define RETURN_NONFATAL(bfd) \ |
| do { \ |
| status = 1; bfd_nonfatal_message (NULL, bfd, NULL, NULL); return; \ |
| } while (0) |
| |
| static asymbol **isympp = NULL; /* Input symbols. */ |
| static asymbol **osympp = NULL; /* Output symbols that survive stripping. */ |
| |
| /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */ |
| static int copy_byte = -1; |
| static int interleave = 4; |
| |
| static bfd_boolean verbose; /* Print file and target names. */ |
| static bfd_boolean preserve_dates; /* Preserve input file timestamp. */ |
| static int status = 0; /* Exit status. */ |
| |
| 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. */ |
| }; |
| |
| /* Which symbols to remove. */ |
| static enum strip_action strip_symbols; |
| |
| enum locals_action |
| { |
| 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. */ |
| 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. */ |
| 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. */ |
| }; |
| |
| static struct section_list *change_sections; |
| |
| /* TRUE if some sections are to be removed. */ |
| static bfd_boolean sections_removed; |
| |
| /* TRUE if only some sections are to be copied. */ |
| static bfd_boolean sections_copied; |
| |
| /* Changes to the start address. */ |
| static bfd_vma change_start = 0; |
| static bfd_boolean set_start_set = FALSE; |
| static bfd_vma set_start; |
| |
| /* Changes to section addresses. */ |
| static bfd_vma change_section_address = 0; |
| |
| /* Filling gaps between sections. */ |
| static bfd_boolean gap_fill_set = FALSE; |
| static bfd_byte gap_fill = 0; |
| |
| /* Pad to a given address. */ |
| static bfd_boolean pad_to_set = FALSE; |
| static bfd_vma pad_to; |
| |
| /* Use alternative machine code? */ |
| static unsigned long use_alt_mach_code = 0; |
| |
| /* Output BFD flags user wants to set or clear */ |
| static flagword bfd_flags_to_set; |
| static flagword bfd_flags_to_clear; |
| |
| /* List of sections to add. */ |
| struct section_add |
| { |
| /* Next section to add. */ |
| struct section_add *next; |
| /* Name of section to add. */ |
| const char *name; |
| /* Name of file holding section contents. */ |
| const char *filename; |
| /* Size of file. */ |
| size_t size; |
| /* Contents of file. */ |
| bfd_byte *contents; |
| /* BFD section, after it has been added. */ |
| asection *section; |
| }; |
| |
| /* List of sections to add to the output BFD. */ |
| static struct section_add *add_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; |
| |
| /* Whether to convert debugging information. */ |
| static bfd_boolean convert_debugging = FALSE; |
| |
| /* Whether to change the leading character in symbol names. */ |
| static bfd_boolean change_leading_char = FALSE; |
| |
| /* Whether to remove the leading character from global symbol names. */ |
| static bfd_boolean remove_leading_char = FALSE; |
| |
| /* Whether to permit wildcard in symbol comparison. */ |
| static bfd_boolean wildcard = FALSE; |
| |
| /* True if --localize-hidden is in effect. */ |
| static bfd_boolean localize_hidden = FALSE; |
| |
| /* List of symbols to strip, keep, localize, keep-global, weaken, |
| or redefine. */ |
| static htab_t strip_specific_htab = NULL; |
| static htab_t strip_unneeded_htab = NULL; |
| static htab_t keep_specific_htab = NULL; |
| 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; |
| |
| /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */ |
| static bfd_boolean weaken = FALSE; |
| |
| /* If this is TRUE, we retain BSF_FILE symbols. */ |
| static bfd_boolean keep_file_symbols = FALSE; |
| |
| /* Prefix symbols/sections. */ |
| static char *prefix_symbols_string = 0; |
| static char *prefix_sections_string = 0; |
| static char *prefix_alloc_sections_string = 0; |
| |
| /* True if --extract-symbol was passed on the command line. */ |
| static bfd_boolean extract_symbol = FALSE; |
| |
| /* If `reverse_bytes' is nonzero, then reverse the order of every chunk |
| of <reverse_bytes> bytes within each output section. */ |
| static int reverse_bytes = 0; |
| |
| |
| /* 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_DEBUGGING, |
| 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_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 |
| }; |
| |
| /* Options to handle if running as "strip". */ |
| |
| static struct option strip_options[] = |
| { |
| {"discard-all", no_argument, 0, 'x'}, |
| {"discard-locals", no_argument, 0, 'X'}, |
| {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| {"help", no_argument, 0, 'h'}, |
| {"info", no_argument, 0, OPTION_FORMATS_INFO}, |
| {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| {"input-target", required_argument, 0, 'I'}, |
| {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS}, |
| {"keep-symbol", required_argument, 0, 'K'}, |
| {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, |
| {"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'}, |
| {"strip-all", no_argument, 0, 's'}, |
| {"strip-debug", no_argument, 0, 'S'}, |
| {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| {"strip-symbol", required_argument, 0, 'N'}, |
| {"target", required_argument, 0, 'F'}, |
| {"verbose", no_argument, 0, 'v'}, |
| {"version", no_argument, 0, 'V'}, |
| {"wildcard", no_argument, 0, 'w'}, |
| {0, no_argument, 0, 0} |
| }; |
| |
| /* Options to handle if running as "objcopy". */ |
| |
| static struct option copy_options[] = |
| { |
| {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK}, |
| {"add-section", required_argument, 0, OPTION_ADD_SECTION}, |
| {"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'}, |
| {"byte", required_argument, 0, 'b'}, |
| {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES}, |
| {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR}, |
| {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, |
| {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA}, |
| {"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}, |
| {"debugging", no_argument, 0, OPTION_DEBUGGING}, |
| {"discard-all", no_argument, 0, 'x'}, |
| {"discard-locals", no_argument, 0, 'X'}, |
| {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL}, |
| {"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}, |
| {"help", no_argument, 0, 'h'}, |
| {"impure", no_argument, 0, OPTION_IMPURE}, |
| {"info", no_argument, 0, OPTION_FORMATS_INFO}, |
| {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| {"input-target", required_argument, 0, 'I'}, |
| {"interleave", required_argument, 0, 'i'}, |
| {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS}, |
| {"keep-global-symbol", required_argument, 0, 'G'}, |
| {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS}, |
| {"keep-symbol", required_argument, 0, 'K'}, |
| {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS}, |
| {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN}, |
| {"localize-symbol", required_argument, 0, 'L'}, |
| {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS}, |
| {"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}, |
| {"only-section", required_argument, 0, 'j'}, |
| {"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}, |
| {"preserve-dates", no_argument, 0, 'p'}, |
| {"pure", no_argument, 0, OPTION_PURE}, |
| {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT}, |
| {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM}, |
| {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS}, |
| {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR}, |
| {"remove-section", required_argument, 0, 'R'}, |
| {"rename-section", required_argument, 0, OPTION_RENAME_SECTION}, |
| {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES}, |
| {"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}, |
| {"strip-all", no_argument, 0, 'S'}, |
| {"strip-debug", no_argument, 0, 'g'}, |
| {"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}, |
| {"target", required_argument, 0, 'F'}, |
| {"verbose", no_argument, 0, 'v'}, |
| {"version", no_argument, 0, 'V'}, |
| {"weaken", no_argument, 0, OPTION_WEAKEN}, |
| {"weaken-symbol", required_argument, 0, 'W'}, |
| {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS}, |
| {"wildcard", no_argument, 0, 'w'}, |
| {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT}, |
| {0, no_argument, 0, 0} |
| }; |
| |
| /* IMPORTS */ |
| extern char *program_name; |
| |
| /* This flag distinguishes between strip and objcopy: |
| 1 means this is 'strip'; 0 means this is 'objcopy'. |
| -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 |
| and can be modified by the --srec-len parameter. */ |
| extern unsigned int Chunk; |
| |
| /* Restrict the generation of Srecords to type S3 only. |
| This variable is declare in bfd/srec.c and can be toggled |
| on by the --srec-forceS3 command line switch. */ |
| extern bfd_boolean S3Forced; |
| |
| /* Defined in bfd/binary.c. Used to set architecture and machine of input |
| binary files. */ |
| extern enum bfd_architecture bfd_external_binary_architecture; |
| extern unsigned long bfd_external_machine; |
| |
| /* Forward declarations. */ |
| static void setup_section (bfd *, asection *, void *); |
| static void setup_bfd_headers (bfd *, bfd *); |
| 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 void |
| copy_usage (FILE *stream, int exit_status) |
| { |
| fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name); |
| fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n")); |
| fprintf (stream, _(" The options are:\n")); |
| fprintf (stream, _("\ |
| -I --input-target <bfdname> Assume input file is in format <bfdname>\n\ |
| -O --output-target <bfdname> Create an output file in format <bfdname>\n\ |
| -B --binary-architecture <arch> Set arch of output file, when input is binary\n\ |
| -F --target <bfdname> Set both input and output format to <bfdname>\n\ |
| --debugging Convert debugging information, if possible\n\ |
| -p --preserve-dates Copy modified/access timestamps to the output\n\ |
| -j --only-section <name> Only copy section <name> into the output\n\ |
| --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\ |
| -R --remove-section <name> Remove section <name> from the output\n\ |
| -S --strip-all Remove all symbol and relocation information\n\ |
| -g --strip-debug Remove all debugging symbols & sections\n\ |
| --strip-unneeded Remove all symbols not needed by relocations\n\ |
| -N --strip-symbol <name> Do not copy symbol <name>\n\ |
| --strip-unneeded-symbol <name>\n\ |
| Do not copy symbol <name> unless needed by\n\ |
| relocations\n\ |
| --only-keep-debug Strip everything but the debug information\n\ |
| --extract-symbol Remove section contents but keep symbols\n\ |
| -K --keep-symbol <name> Do not strip symbol <name>\n\ |
| --keep-file-symbols Do not strip file symbol(s)\n\ |
| --localize-hidden Turn all ELF hidden symbols into locals\n\ |
| -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\ |
| --globalize-symbol <name> Force symbol <name> to be marked as a global\n\ |
| -G --keep-global-symbol <name> Localize all symbols except <name>\n\ |
| -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\ |
| --weaken Force all global symbols to be marked as weak\n\ |
| -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 <number> Only copy one out of every <number> bytes\n\ |
| -b --byte <num> Select byte <num> in every interleaved block\n\ |
| --gap-fill <val> Fill gaps between sections with <val>\n\ |
| --pad-to <addr> Pad the last section up to address <addr>\n\ |
| --set-start <addr> Set the start address to <addr>\n\ |
| {--change-start|--adjust-start} <incr>\n\ |
| Add <incr> to the start address\n\ |
| {--change-addresses|--adjust-vma} <incr>\n\ |
| Add <incr> to LMA, VMA and start addresses\n\ |
| {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\ |
| Change LMA and VMA of section <name> by <val>\n\ |
| --change-section-lma <name>{=|+|-}<val>\n\ |
| Change the LMA of section <name> by <val>\n\ |
| --change-section-vma <name>{=|+|-}<val>\n\ |
| Change the VMA of section <name> by <val>\n\ |
| {--[no-]change-warnings|--[no-]adjust-warnings}\n\ |
| Warn if a named section does not exist\n\ |
| --set-section-flags <name>=<flags>\n\ |
| Set section <name>'s properties to <flags>\n\ |
| --add-section <name>=<file> Add section <name> found in <file> to output\n\ |
| --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\ |
| --change-leading-char Force output format's leading character style\n\ |
| --remove-leading-char Remove leading character from global symbols\n\ |
| --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\ |
| --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\ |
| --redefine-syms <file> --redefine-sym for all symbol pairs \n\ |
| listed in <file>\n\ |
| --srec-len <number> Restrict the length of generated Srecords\n\ |
| --srec-forceS3 Restrict the type of generated Srecords to S3\n\ |
| --strip-symbols <file> -N for all symbols listed in <file>\n\ |
| --strip-unneeded-symbols <file>\n\ |
| --strip-unneeded-symbol for all symbols listed\n\ |
| in <file>\n\ |
| --keep-symbols <file> -K for all symbols listed in <file>\n\ |
| --localize-symbols <file> -L for all symbols listed in <file>\n\ |
| --globalize-symbols <file> --globalize-symbol for all in <file>\n\ |
| --keep-global-symbols <file> -G for all symbols listed in <file>\n\ |
| --weaken-symbols <file> -W for all symbols listed in <file>\n\ |
| --alt-machine-code <index> Use the target's <index>'th alternative machine\n\ |
| --writable-text Mark the output text as writable\n\ |
| --readonly-text Make the output text write protected\n\ |
| --pure Mark the output file as demand paged\n\ |
| --impure Mark the output file as impure\n\ |
| --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\ |
| --prefix-sections <prefix> Add <prefix> to start of every section name\n\ |
| --prefix-alloc-sections <prefix>\n\ |
| Add <prefix> to start of every allocatable\n\ |
| section name\n\ |
| -v --verbose List all object files modified\n\ |
| @<file> Read options from <file>\n\ |
| -V --version Display this program's version number\n\ |
| -h --help Display this output\n\ |
| --info List object formats & architectures supported\n\ |
| ")); |
| list_supported_targets (program_name, stream); |
| if (REPORT_BUGS_TO[0] && exit_status == 0) |
| fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| exit (exit_status); |
| } |
| |
| static void |
| strip_usage (FILE *stream, int exit_status) |
| { |
| fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name); |
| fprintf (stream, _(" Removes symbols and sections from files\n")); |
| fprintf (stream, _(" The options are:\n")); |
| fprintf (stream, _("\ |
| -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\ |
| -O --output-target=<bfdname> Create an output file in format <bfdname>\n\ |
| -F --target=<bfdname> Set both input and output format to <bfdname>\n\ |
| -p --preserve-dates Copy modified/access timestamps to the output\n\ |
| -R --remove-section=<name> Remove section <name> from the output\n\ |
| -s --strip-all Remove all symbol and relocation information\n\ |
| -g -S -d --strip-debug Remove all debugging symbols & sections\n\ |
| --strip-unneeded Remove all symbols not needed by relocations\n\ |
| --only-keep-debug Strip everything but the debug information\n\ |
| -N --strip-symbol=<name> Do not copy symbol <name>\n\ |
| -K --keep-symbol=<name> Do not strip symbol <name>\n\ |
| --keep-file-symbols Do not strip file symbol(s)\n\ |
| -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\ |
| -v --verbose List all object files modified\n\ |
| -V --version Display this program's version number\n\ |
| -h --help Display this output\n\ |
| --info List object formats & architectures supported\n\ |
| -o <file> Place stripped output into <file>\n\ |
| ")); |
| |
| list_supported_targets (program_name, stream); |
| if (REPORT_BUGS_TO[0] && exit_status == 0) |
| fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| exit (exit_status); |
| } |
| |
| /* Parse section flags into a flagword, with a fatal error if the |
| string can't be parsed. */ |
| |
| static flagword |
| parse_flags (const char *s) |
| { |
| flagword ret; |
| const char *snext; |
| int len; |
| |
| ret = SEC_NO_FLAGS; |
| |
| do |
| { |
| snext = strchr (s, ','); |
| if (snext == NULL) |
| len = strlen (s); |
| else |
| { |
| len = snext - s; |
| ++snext; |
| } |
| |
| if (0) ; |
| #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); |
| PARSE_FLAG ("readonly", SEC_READONLY); |
| PARSE_FLAG ("debug", SEC_DEBUGGING); |
| PARSE_FLAG ("code", SEC_CODE); |
| PARSE_FLAG ("data", SEC_DATA); |
| PARSE_FLAG ("rom", SEC_ROM); |
| PARSE_FLAG ("share", SEC_COFF_SHARED); |
| PARSE_FLAG ("contents", SEC_HAS_CONTENTS); |
| #undef PARSE_FLAG |
| else |
| { |
| char *copy; |
| |
| copy = xmalloc (len + 1); |
| strncpy (copy, s, len); |
| copy[len] = '\0'; |
| non_fatal (_("unrecognized section flag `%s'"), copy); |
| fatal (_("supported flags: %s"), |
| "alloc, load, noload, readonly, debug, code, data, rom, share, contents"); |
| } |
| |
| s = snext; |
| } |
| while (s != NULL); |
| |
| return ret; |
| } |
| |
| /* Find and optionally add an entry in the change_sections list. */ |
| |
| static struct section_list * |
| find_section_list (const char *name, bfd_boolean add) |
| { |
| struct section_list *p; |
| |
| for (p = change_sections; p != NULL; p = p->next) |
| if (strcmp (p->name, name) == 0) |
| return p; |
| |
| if (! add) |
| return NULL; |
| |
| p = xmalloc (sizeof (struct section_list)); |
| p->name = name; |
| p->used = FALSE; |
| p->remove = FALSE; |
| p->copy = FALSE; |
| p->change_vma = CHANGE_IGNORE; |
| p->change_lma = CHANGE_IGNORE; |
| p->vma_val = 0; |
| p->lma_val = 0; |
| p->set_flags = FALSE; |
| p->flags = 0; |
| |
| p->next = change_sections; |
| change_sections = p; |
| |
| return p; |
| } |
| |
| /* There is htab_hash_string but no htab_eq_string. Makes sense. */ |
| |
| static int |
| eq_string (const void *s1, const void *s2) |
| { |
| return strcmp (s1, s2) == 0; |
| } |
| |
| static htab_t |
| create_symbol_htab (void) |
| { |
| return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free); |
| } |
| |
| static void |
| create_symbol_htabs (void) |
| { |
| strip_specific_htab = create_symbol_htab (); |
| strip_unneeded_htab = create_symbol_htab (); |
| keep_specific_htab = create_symbol_htab (); |
| localize_specific_htab = create_symbol_htab (); |
| globalize_specific_htab = create_symbol_htab (); |
| keepglobal_specific_htab = create_symbol_htab (); |
| weaken_specific_htab = create_symbol_htab (); |
| } |
| |
| /* Add a symbol to strip_specific_list. */ |
| |
| static void |
| add_specific_symbol (const char *name, htab_t htab) |
| { |
| *htab_find_slot (htab, name, INSERT) = (char *) name; |
| } |
| |
| /* 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) |
| { |
| off_t size; |
| FILE * f; |
| char * line; |
| char * buffer; |
| unsigned int line_count; |
| |
| size = get_file_size (filename); |
| if (size == 0) |
| { |
| status = 1; |
| return; |
| } |
| |
| buffer = xmalloc (size + 2); |
| f = fopen (filename, FOPEN_RT); |
| if (f == NULL) |
| fatal (_("cannot open '%s': %s"), filename, strerror (errno)); |
| |
| if (fread (buffer, 1, size, f) == 0 || ferror (f)) |
| fatal (_("%s: fread failed"), filename); |
| |
| fclose (f); |
| buffer [size] = '\n'; |
| buffer [size + 1] = '\0'; |
| |
| line_count = 1; |
| |
| for (line = buffer; * line != '\0'; line ++) |
| { |
| char * eol; |
| char * name; |
| char * name_end; |
| int finished = FALSE; |
| |
| for (eol = line;; eol ++) |
| { |
| switch (* eol) |
| { |
| case '\n': |
| * eol = '\0'; |
| /* Cope with \n\r. */ |
| if (eol[1] == '\r') |
| ++ eol; |
| finished = TRUE; |
| break; |
| |
| case '\r': |
| * eol = '\0'; |
| /* Cope with \r\n. */ |
| if (eol[1] == '\n') |
| ++ eol; |
| finished = TRUE; |
| break; |
| |
| case 0: |
| finished = TRUE; |
| break; |
| |
| case '#': |
| /* Line comment, Terminate the line here, in case a |
| name is present and then allow the rest of the |
| loop to find the real end of the line. */ |
| * eol = '\0'; |
| break; |
| |
| default: |
| break; |
| } |
| |
| if (finished) |
| break; |
| } |
| |
| /* A name may now exist somewhere between 'line' and 'eol'. |
| Strip off leading whitespace and trailing whitespace, |
| then add it to the list. */ |
| for (name = line; IS_WHITESPACE (* name); name ++) |
| ; |
| for (name_end = name; |
| (! IS_WHITESPACE (* name_end)) |
| && (! IS_LINE_TERMINATOR (* name_end)); |
| name_end ++) |
| ; |
| |
| if (! IS_LINE_TERMINATOR (* name_end)) |
| { |
| char * extra; |
| |
| for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++) |
| ; |
| |
| if (! IS_LINE_TERMINATOR (* extra)) |
| non_fatal (_("%s:%d: Ignoring rubbish found on this line"), |
| filename, line_count); |
| } |
| |
| * name_end = '\0'; |
| |
| if (name_end > name) |
| add_specific_symbol (name, htab); |
| |
| /* Advance line pointer to end of line. The 'eol ++' in the for |
| loop above will then advance us to the start of the next line. */ |
| line = eol; |
| line_count ++; |
| } |
| } |
| |
| /* See whether a symbol should be stripped or kept |
| based on strip_specific_list and keep_symbols. */ |
| |
| static int |
| is_specified_symbol_predicate (void **slot, void *data) |
| { |
| struct is_specified_symbol_predicate_data *d = data; |
| const char *slot_name = *slot; |
| |
| if (*slot_name != '!') |
| { |
| if (! fnmatch (slot_name, d->name, 0)) |
| { |
| d->found = TRUE; |
| /* Stop traversal. */ |
| return 0; |
| } |
| } |
| else |
| { |
| if (fnmatch (slot_name + 1, d->name, 0)) |
| { |
| d->found = TRUE; |
| /* Stop traversal. */ |
| return 0; |
| } |
| } |
| |
| /* Continue traversal. */ |
| return 1; |
| } |
| |
| static bfd_boolean |
| is_specified_symbol (const char *name, htab_t htab) |
| { |
| if (wildcard) |
| { |
| struct is_specified_symbol_predicate_data data; |
| |
| data.name = name; |
| data.found = FALSE; |
| |
| htab_traverse (htab, is_specified_symbol_predicate, &data); |
| |
| return data.found; |
| } |
| |
| return htab_find (htab, name) != NULL; |
| } |
| |
| /* Return a pointer to the symbol used as a signature for GROUP. */ |
| |
| static asymbol * |
| group_signature (asection *group) |
| { |
| bfd *abfd = group->owner; |
| Elf_Internal_Shdr *ghdr; |
| |
| 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)) |
| { |
| const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
| Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link]; |
| |
| if (symhdr->sh_type == SHT_SYMTAB |
| && 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. */ |
| |
| static bfd_boolean |
| is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
| { |
| if (sections_removed || sections_copied) |
| { |
| struct section_list *p; |
| |
| p = find_section_list (bfd_get_section_name (abfd, sec), FALSE); |
| |
| if (sections_removed && p != NULL && p->remove) |
| return TRUE; |
| if (sections_copied && (p == NULL || ! p->copy)) |
| return TRUE; |
| } |
| |
| if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0) |
| { |
| if (strip_symbols == STRIP_DEBUG |
| || strip_symbols == STRIP_UNNEEDED |
| || strip_symbols == STRIP_ALL |
| || discard_locals == LOCALS_ALL |
| || convert_debugging) |
| return TRUE; |
| |
| if (strip_symbols == STRIP_NONDEBUG) |
| return FALSE; |
| } |
| |
| if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0) |
| { |
| asymbol *gsym; |
| const char *gname; |
| |
| /* PR binutils/3166 |
| Group sections look like debugging sections but they are not. |
| (They have a non-zero size but they are not ALLOCated). */ |
| if (strip_symbols == STRIP_NONDEBUG) |
| 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; |
| if ((strip_symbols == STRIP_ALL |
| && !is_specified_symbol (gname, keep_specific_htab)) |
| || is_specified_symbol (gname, strip_specific_htab)) |
| return TRUE; |
| } |
| |
| return FALSE; |
| } |
| |
| /* Return true if SYM is a hidden symbol. */ |
| |
| static bfd_boolean |
| is_hidden_symbol (asymbol *sym) |
| { |
| elf_symbol_type *elf_sym; |
| |
| elf_sym = elf_symbol_from (sym->the_bfd, sym); |
| if (elf_sym != NULL) |
| switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other)) |
| { |
| case STV_HIDDEN: |
| case STV_INTERNAL: |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| /* 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. */ |
| |
| static unsigned int |
| filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, |
| asymbol **isyms, long symcount) |
| { |
| asymbol **from = isyms, **to = osyms; |
| long src_count = 0, dst_count = 0; |
| int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| |
| for (; src_count < symcount; src_count++) |
| { |
| asymbol *sym = from[src_count]; |
| flagword flags = sym->flags; |
| char *name = (char *) bfd_asymbol_name (sym); |
| bfd_boolean keep; |
| bfd_boolean used_in_reloc = FALSE; |
| bfd_boolean undefined; |
| bfd_boolean rem_leading_char; |
| bfd_boolean add_leading_char; |
| |
| undefined = bfd_is_und_section (bfd_get_section (sym)); |
| |
| if (redefine_sym_list) |
| { |
| char *old_name, *new_name; |
| |
| old_name = (char *) bfd_asymbol_name (sym); |
| new_name = (char *) lookup_sym_redefinition (old_name); |
| bfd_asymbol_name (sym) = new_name; |
| name = new_name; |
| } |
| |
| /* Check if we will remove the current leading character. */ |
| rem_leading_char = |
| (name[0] == bfd_get_symbol_leading_char (abfd)) |
| && (change_leading_char |
| || (remove_leading_char |
| && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0 |
| || undefined |
| || bfd_is_com_section (bfd_get_section (sym))))); |
| |
| /* Check if we will add a new leading character. */ |
| add_leading_char = |
| change_leading_char |
| && (bfd_get_symbol_leading_char (obfd) != '\0') |
| && (bfd_get_symbol_leading_char (abfd) == '\0' |
| || (name[0] == bfd_get_symbol_leading_char (abfd))); |
| |
| /* 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) |
| bfd_asymbol_name (sym) = ++name; |
| |
| /* Add new leading char and/or prefix. */ |
| if (add_leading_char || prefix_symbols_string) |
| { |
| char *n, *ptr; |
| |
| ptr = n = 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); |
| } |
| |
| strcpy (ptr, name); |
| bfd_asymbol_name (sym) = n; |
| name = n; |
| } |
| |
| if (strip_symbols == STRIP_ALL) |
| keep = FALSE; |
| else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */ |
| || ((flags & BSF_SECTION_SYM) != 0 |
| && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags |
| & BSF_KEEP) != 0)) |
| { |
| keep = TRUE; |
| used_in_reloc = TRUE; |
| } |
| else if (relocatable /* Relocatable file. */ |
| && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0) |
| keep = TRUE; |
| else if (bfd_decode_symclass (sym) == 'I') |
| /* Global symbols in $idata sections need to be retained |
| even if relocatable is FALSE. External users of the |
| library containing the $idata section may reference these |
| symbols. */ |
| keep = TRUE; |
| else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */ |
| || (flags & BSF_WEAK) != 0 |
| || undefined |
| || bfd_is_com_section (bfd_get_section (sym))) |
| keep = strip_symbols != STRIP_UNNEEDED; |
| else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */ |
| keep = (strip_symbols != STRIP_DEBUG |
| && strip_symbols != STRIP_UNNEEDED |
| && ! convert_debugging); |
| else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym))) |
| /* COMDAT sections store special information in local |
| symbols, so we cannot risk stripping any of them. */ |
| keep = TRUE; |
| else /* Local symbol. */ |
| keep = (strip_symbols != STRIP_UNNEEDED |
| && (discard_locals != LOCALS_ALL |
| && (discard_locals != LOCALS_START_L |
| || ! bfd_is_local_label (abfd, sym)))); |
| |
| if (keep && is_specified_symbol (name, strip_specific_htab)) |
| { |
| /* There are multiple ways to set 'keep' above, but if it |
| was the relocatable symbol case, then that's an error. */ |
| if (used_in_reloc) |
| { |
| non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name); |
| status = 1; |
| } |
| else |
| keep = FALSE; |
| } |
| |
| if (keep |
| && !(flags & BSF_KEEP) |
| && is_specified_symbol (name, strip_unneeded_htab)) |
| keep = FALSE; |
| |
| if (!keep |
| && ((keep_file_symbols && (flags & BSF_FILE)) |
| || is_specified_symbol (name, keep_specific_htab))) |
| keep = TRUE; |
| |
| if (keep && is_strip_section (abfd, bfd_get_section (sym))) |
| keep = FALSE; |
| |
| if (keep) |
| { |
| if ((flags & BSF_GLOBAL) != 0 |
| && (weaken || is_specified_symbol (name, weaken_specific_htab))) |
| { |
| sym->flags &= ~ BSF_GLOBAL; |
| sym->flags |= BSF_WEAK; |
| } |
| |
| if (!undefined |
| && (flags & (BSF_GLOBAL | BSF_WEAK)) |
| && (is_specified_symbol (name, localize_specific_htab) |
| || (htab_elements (keepglobal_specific_htab) != 0 |
| && ! is_specified_symbol (name, keepglobal_specific_htab)) |
| || (localize_hidden && is_hidden_symbol (sym)))) |
| { |
| sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK); |
| sym->flags |= BSF_LOCAL; |
| } |
| |
| if (!undefined |
| && (flags & BSF_LOCAL) |
| && is_specified_symbol (name, globalize_specific_htab)) |
| { |
| sym->flags &= ~ BSF_LOCAL; |
| sym->flags |= BSF_GLOBAL; |
| } |
| |
| to[dst_count++] = sym; |
| } |
| } |
| |
| to[dst_count] = NULL; |
| |
| return dst_count; |
| } |
| |
| /* Find the redefined name of symbol SOURCE. */ |
| |
| 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; |
| |
| return source; |
| } |
| |
| /* Add a node to a symbol redefine list. */ |
| |
| static void |
| redefine_list_append (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 = xmalloc (sizeof (struct redefine_node)); |
| |
| new_node->source = strdup (source); |
| new_node->target = strdup (target); |
| new_node->next = NULL; |
| |
| *p = new_node; |
| } |
| |
| /* Handle the --redefine-syms option. Read lines containing "old new" |
| from the file, and add them to the symbol redefine list. */ |
| |
| static void |
| add_redefine_syms_file (const char *filename) |
| { |
| FILE *file; |
| char *buf; |
| size_t bufsize; |
| size_t len; |
| size_t outsym_off; |
| int c, lineno; |
| |
| file = fopen (filename, "r"); |
| if (file == NULL) |
| fatal (_("couldn't open symbol redefinition file %s (error: %s)"), |
| filename, strerror (errno)); |
| |
| bufsize = 100; |
| buf = xmalloc (bufsize); |
| |
| lineno = 1; |
| c = getc (file); |
| len = 0; |
| outsym_off = 0; |
| while (c != EOF) |
| { |
| /* Collect the input symbol name. */ |
| while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF) |
| { |
| if (c == '#') |
| goto comment; |
| buf[len++] = c; |
| if (len >= bufsize) |
| { |
| bufsize *= 2; |
| buf = xrealloc (buf, bufsize); |
| } |
| c = getc (file); |
| } |
| buf[len++] = '\0'; |
| if (c == EOF) |
| break; |
| |
| /* Eat white space between the symbol names. */ |
| while (IS_WHITESPACE (c)) |
| c = getc (file); |
| if (c == '#' || IS_LINE_TERMINATOR (c)) |
| goto comment; |
| if (c == EOF) |
| break; |
| |
| /* Collect the output symbol name. */ |
| outsym_off = len; |
| while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF) |
| { |
| if (c == '#') |
| goto comment; |
| buf[len++] = c; |
| if (len >= bufsize) |
| { |
| bufsize *= 2; |
| buf = xrealloc (buf, bufsize); |
| } |
| c = getc (file); |
| } |
| buf[len++] = '\0'; |
| if (c == EOF) |
| break; |
| |
| /* Eat white space at end of line. */ |
| while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c)) |
| c = getc (file); |
| if (c == '#') |
| goto comment; |
| /* Handle \r\n. */ |
| if ((c == '\r' && (c = getc (file)) == '\n') |
| || c == '\n' || c == EOF) |
| { |
| end_of_line: |
| /* Append the redefinition to the list. */ |
| if (buf[0] != '\0') |
| redefine_list_append (filename, &buf[0], &buf[outsym_off]); |
| |
| lineno++; |
| len = 0; |
| outsym_off = 0; |
| if (c == EOF) |
| break; |
| c = getc (file); |
| continue; |
| } |
| else |
| fatal (_("%s:%d: garbage found at end of line"), filename, lineno); |
| comment: |
| if (len != 0 && (outsym_off == 0 || outsym_off == len)) |
| fatal (_("%s:%d: missing new symbol name"), filename, lineno); |
| buf[len++] = '\0'; |
| |
| /* Eat the rest of the line and finish it. */ |
| while (c != '\n' && c != EOF) |
| c = getc (file); |
| goto end_of_line; |
| } |
| |
| if (len != 0) |
| fatal (_("%s:%d: premature end of file"), filename, lineno); |
| |
| free (buf); |
| } |
| |
| /* Copy unkown object file IBFD onto OBFD. |
| Returns TRUE upon success, FALSE otherwise. */ |
| |
| static bfd_boolean |
| copy_unknown_object (bfd *ibfd, bfd *obfd) |
| { |
| char *cbuf; |
| int tocopy; |
| long ncopied; |
| long size; |
| struct stat buf; |
| |
| if (bfd_stat_arch_elt (ibfd, &buf) != 0) |
| { |
| bfd_nonfatal_message (bfd_get_archive_filename (ibfd), NULL, NULL, NULL); |
| return FALSE; |
| } |
| |
| size = buf.st_size; |
| if (size < 0) |
| { |
| non_fatal (_("stat returns negative size for `%s'"), |
| bfd_get_archive_filename (ibfd)); |
| return FALSE; |
| } |
| |
| if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0) |
| { |
| bfd_nonfatal (bfd_get_archive_filename (ibfd)); |
| return FALSE; |
| } |
| |
| if (verbose) |
| printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"), |
| bfd_get_archive_filename (ibfd), bfd_get_filename (obfd)); |
| |
| cbuf = xmalloc (BUFSIZE); |
| ncopied = 0; |
| while (ncopied < size) |
| { |
| tocopy = size - ncopied; |
| if (tocopy > BUFSIZE) |
| tocopy = BUFSIZE; |
| |
| if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd) |
| != (bfd_size_type) tocopy) |
| { |
| bfd_nonfatal_message (bfd_get_archive_filename (ibfd), |
| NULL, NULL, NULL); |
| free (cbuf); |
| return FALSE; |
| } |
| |
| if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd) |
| != (bfd_size_type) tocopy) |
| { |
| bfd_nonfatal_message (NULL, obfd, NULL, NULL); |
| free (cbuf); |
| return FALSE; |
| } |
| |
| ncopied += tocopy; |
| } |
| |
| chmod (bfd_get_filename (obfd), buf.st_mode); |
| free (cbuf); |
| return TRUE; |
| } |
| |
| /* Copy object file IBFD onto OBFD. |
| Returns TRUE upon success, FALSE otherwise. */ |
| |
| static bfd_boolean |
| copy_object (bfd *ibfd, bfd *obfd) |
| { |
| bfd_vma start; |
| long symcount; |
| asection **osections = NULL; |
| asection *gnu_debuglink_section = NULL; |
| bfd_size_type *gaps = NULL; |
| bfd_size_type max_gap = 0; |
| long symsize; |
| void *dhandle; |
| enum bfd_architecture iarch; |
| unsigned int imach; |
| |
| 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)")); |
| |
| if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| { |
| bfd_nonfatal_message (NULL, obfd, NULL, NULL); |
| return FALSE; |
| } |
| |
| if (verbose) |
| printf (_("copy from `%s' [%s] to `%s' [%s]\n"), |
| bfd_get_archive_filename (ibfd), bfd_get_target (ibfd), |
| bfd_get_filename (obfd), bfd_get_target (obfd)); |
| |
| if (extract_symbol) |
| start = 0; |
| else |
| { |
| if (set_start_set) |
| start = set_start; |
| else |
| start = bfd_get_start_address (ibfd); |
| start += change_start; |
| } |
| |
| /* Neither the start address nor the flags |
| need to be set for a core file. */ |
| if (bfd_get_format (obfd) != bfd_core) |
| { |
| flagword flags; |
| |
| flags = bfd_get_file_flags (ibfd); |
| flags |= bfd_flags_to_set; |
| flags &= ~bfd_flags_to_clear; |
| flags &= bfd_applicable_file_flags (obfd); |
| |
| if (!bfd_set_start_address (obfd, start) |
| || !bfd_set_file_flags (obfd, flags)) |
| { |
| bfd_nonfatal_message (bfd_get_archive_filename (ibfd), |
| NULL, NULL, NULL); |
| return FALSE; |
| } |
| } |
| |
| /* Copy architecture of input file to output file. */ |
| iarch = bfd_get_arch (ibfd); |
| imach = bfd_get_mach (ibfd); |
| if (!bfd_set_arch_mach (obfd, iarch, imach) |
| && (ibfd->target_defaulted |
| || bfd_get_arch (ibfd) != bfd_get_arch (obfd))) |
| { |
| if (bfd_get_arch (ibfd) == bfd_arch_unknown) |
| non_fatal (_("Unable to recognise the format of the input file `%s'"), |
| bfd_get_archive_filename (ibfd)); |
| else |
| non_fatal (_("Warning: Output file cannot represent architecture `%s'"), |
| bfd_printable_arch_mach (bfd_get_arch (ibfd), |
| bfd_get_mach (ibfd))); |
| return FALSE; |
| } |
| |
| if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| { |
| bfd_nonfatal_message (bfd_get_archive_filename (ibfd), NULL, NULL, NULL); |
| return FALSE; |
| } |
| |
| if (isympp) |
| free (isympp); |
| |
| if (osympp != isympp) |
| free (osympp); |
| |
| isympp = NULL; |
| osympp = NULL; |
| |
| symsize = bfd_get_symtab_upper_bound (ibfd); |
| if (symsize < 0) |
| { |
| bfd_nonfatal_message (bfd_get_archive_filename (ibfd), NULL, NULL, NULL); |
| return FALSE; |
| } |
| |
| osympp = isympp = xmalloc (symsize); |
| symcount = bfd_canonicalize_symtab (ibfd, isympp); |
| if (symcount < 0) |
| { |
| bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| return FALSE; |
| } |
| |
| /* BFD mandates that all output sections be created and sizes set before |
| any output is done. Thus, we traverse all sections multiple times. */ |
| bfd_map_over_sections (ibfd, setup_section, obfd); |
| |
| if (!extract_symbol) |
| setup_bfd_headers (ibfd, obfd); |
| |
| if (add_sections != NULL) |
| { |
| struct section_add *padd; |
| struct section_list *pset; |
| |
| for (padd = add_sections; padd != NULL; padd = padd->next) |
| { |
| flagword flags; |
| |
| pset = find_section_list (padd->name, FALSE); |
| 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; |
| |
| /* 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); |
| return FALSE; |
| } |
| else |
| { |
| padd->section = bfd_make_section_with_flags (obfd, padd->name, flags); |
| if (padd->section == NULL) |
| { |
| bfd_nonfatal_message (NULL, obfd, NULL, |
| _("can't create section `%s'"), |
| padd->name); |
| return FALSE; |
| } |
| } |
| |
| if (! bfd_set_section_size (obfd, padd->section, padd->size)) |
| { |
| bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| return FALSE; |
| } |
| |
| 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; |
| } |
| |
| if (pset->change_lma != CHANGE_IGNORE) |
| { |
| padd->section->lma = pset->lma_val; |
| |
| if (! bfd_set_section_alignment |
| (obfd, padd->section, |
| bfd_section_alignment (obfd, padd->section))) |
| { |
| bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| return FALSE; |
| } |
| } |
| } |
| } |
| } |
| |
| if (gnu_debuglink_filename != NULL) |
| { |
| 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; |
| 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); |
| else |
| /* Umm, not sure what to do in this case. */ |
| debuglink_vma = 0x1000; |
| |
| bfd_set_section_vma (obfd, gnu_debuglink_section, debuglink_vma); |
| } |
| } |
| |
| if (bfd_count_sections (obfd) != 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 |
| grabbing a list of the sections, sorting them by VMA, and |
| increasing the section sizes as required to fill the gaps. |
| We write out the gap contents below. */ |
| |
| c = bfd_count_sections (obfd); |
| osections = xmalloc (c * sizeof (asection *)); |
| set = osections; |
| bfd_map_over_sections (obfd, get_sections, &set); |
| |
| qsort (osections, c, sizeof (asection *), compare_section_lma); |
| |
| gaps = xmalloc (c * sizeof (bfd_size_type)); |
| memset (gaps, 0, c * sizeof (bfd_size_type)); |
| |
| if (gap_fill_set) |
| { |
| for (i = 0; i < c - 1; i++) |
| { |
| flagword flags; |
| bfd_size_type size; |
| bfd_vma gap_start, gap_stop; |
| |
| flags = bfd_get_section_flags (obfd, osections[i]); |
| if ((flags & SEC_HAS_CONTENTS) == 0 |
| || (flags & SEC_LOAD) == 0) |
| continue; |
| |
| size = bfd_section_size (obfd, osections[i]); |
| gap_start = bfd_section_lma (obfd, osections[i]) + size; |
| gap_stop = bfd_section_lma (obfd, osections[i + 1]); |
| if (gap_start < gap_stop) |
| { |
| if (! bfd_set_section_size (obfd, osections[i], |
| size + (gap_stop - gap_start))) |
| { |
| bfd_nonfatal_message (NULL, obfd, osections[i], |
| _("Can't fill gap after section")); |
| status = 1; |
| break; |
| } |
| gaps[i] = gap_stop - gap_start; |
| if (max_gap < gap_stop - gap_start) |
| max_gap = gap_stop - gap_start; |
| } |
| } |
| } |
| |
| if (pad_to_set) |
| { |
| bfd_vma lma; |
| bfd_size_type size; |
| |
| lma = bfd_section_lma (obfd, osections[c - 1]); |
| size = bfd_section_size (obfd, osections[c - 1]); |
| if (lma + size < pad_to) |
| { |
| if (! bfd_set_section_size (obfd, osections[c - 1], |
| pad_to - lma)) |
| { |
| bfd_nonfatal_message (NULL, obfd, osections[c - 1], |
| _("can't add padding")); |
| status = 1; |
| } |
| else |
| { |
| gaps[c - 1] = pad_to - (lma + size); |
| if (max_gap < pad_to - (lma + size)) |
| max_gap = pad_to - (lma + size); |
| } |
| } |
| } |
| } |
| |
| /* Symbol filtering must happen after the output sections |
| have been created, but before their contents are set. */ |
| dhandle = NULL; |
| if (convert_debugging) |
| dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE); |
| |
| if (strip_symbols == STRIP_DEBUG |
| || strip_symbols == STRIP_ALL |
| || strip_symbols == STRIP_UNNEEDED |
| || strip_symbols == STRIP_NONDEBUG |
| || discard_locals != LOCALS_UNDEF |
| || localize_hidden |
| || htab_elements (strip_specific_htab) != 0 |
| || htab_elements (keep_specific_htab) != 0 |
| || htab_elements (localize_specific_htab) != 0 |
| || htab_elements (globalize_specific_htab) != 0 |
| || htab_elements (keepglobal_specific_htab) != 0 |
| || htab_elements (weaken_specific_htab) != 0 |
| || prefix_symbols_string |
| || sections_removed |
| || sections_copied |
| || convert_debugging |
| || change_leading_char |
| || remove_leading_char |
| || redefine_sym_list |
| || weaken) |
| { |
| /* Mark symbols used in output relocations so that they |
| are kept, even if they are local labels or static symbols. |
| |
| Note we iterate over the input sections examining their |
| relocations since the relocations for the output sections |
| haven't been set yet. mark_symbols_used_in_relocations will |
| 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 = xmalloc ((symcount + 1) * sizeof (asymbol *)); |
| symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount); |
| } |
| |
| if (convert_debugging && dhandle != NULL) |
| { |
| if (! write_debugging_info (obfd, dhandle, &symcount, &osympp)) |
| { |
| status = 1; |
| return FALSE; |
| } |
| } |
| |
| bfd_set_symtab (obfd, osympp, symcount); |
| |
| /* This has to happen after the symbol table has been set. */ |
| bfd_map_over_sections (ibfd, copy_section, obfd); |
| |
| if (add_sections != NULL) |
| { |
| struct section_add *padd; |
| |
| for (padd = add_sections; padd != NULL; padd = padd->next) |
| { |
| if (! bfd_set_section_contents (obfd, padd->section, padd->contents, |
| 0, padd->size)) |
| { |
| bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| return FALSE; |
| } |
| } |
| } |
| |
| if (gnu_debuglink_filename != NULL) |
| { |
| if (! bfd_fill_in_gnu_debuglink_section |
| (obfd, gnu_debuglink_section, gnu_debuglink_filename)) |
| { |
| bfd_nonfatal_message (NULL, obfd, NULL, |
| _("cannot fill debug link section `%s'"), |
| gnu_debuglink_filename); |
| return FALSE; |
| } |
| } |
| |
| if (gap_fill_set || pad_to_set) |
| { |
| bfd_byte *buf; |
| int c, i; |
| |
| /* Fill in the gaps. */ |
| if (max_gap > 8192) |
| max_gap = 8192; |
| buf = xmalloc (max_gap); |
| memset (buf, gap_fill, max_gap); |
| |
| c = bfd_count_sections (obfd); |
| for (i = 0; i < c; i++) |
| { |
| if (gaps[i] != 0) |
| { |
| bfd_size_type left; |
| file_ptr off; |
| |
| left = gaps[i]; |
| off = bfd_section_size (obfd, osections[i]) - left; |
| |
| while (left > 0) |
| { |
| bfd_size_type now; |
| |
| if (left > 8192) |
| now = 8192; |
| else |
| now = left; |
| |
| if (! bfd_set_section_contents (obfd, osections[i], buf, |
| off, now)) |
| { |
| bfd_nonfatal_message (NULL, obfd, osections[i], NULL); |
| return FALSE; |
| } |
| |
| left -= now; |
| off += now; |
| } |
| } |
| } |
| } |
| |
| /* 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; |
| |
| /* Allow the BFD backend to copy any private data it understands |
| from the input BFD to the output BFD. This is done last to |
| permit the routine to look at the filtered symbol table, which is |
| important for the ECOFF code at least. */ |
| if (! bfd_copy_private_bfd_data (ibfd, obfd)) |
| { |
| bfd_nonfatal_message (NULL, obfd, NULL, |
| _("error copying private BFD data")); |
| return FALSE; |
| } |
| |
| /* Switch to the alternate machine code. We have to do this at the |
| very end, because we only initialize the header when we create |
| the first section. */ |
| if (use_alt_mach_code != 0) |
| { |
| if (! bfd_alt_mach_code (obfd, use_alt_mach_code)) |
| { |
| non_fatal (_("this target does not support %lu alternative machine codes"), |
| use_alt_mach_code); |
| if (bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| { |
| non_fatal (_("treating that number as an absolute e_machine value instead")); |
| elf_elfheader (obfd)->e_machine = use_alt_mach_code; |
| } |
| else |
| non_fatal (_("ignoring the alternative value")); |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| /* Read each archive element in turn from IBFD, copy the |
| contents to temp file, and keep the temp file handle. |
| If 'force_output_target' is TRUE then make sure that |
| all elements in the new archive are of the type |
| 'output_target'. */ |
| |
| static void |
| copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, |
| bfd_boolean force_output_target) |
| { |
| struct name_list |
| { |
| struct name_list *next; |
| const char *name; |
| bfd *obfd; |
| } *list, *l; |
| bfd **ptr = &obfd->archive_head; |
| bfd *this_element; |
| char * dir; |
| |
| /* 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)"), |
| strerror (errno)); |
| |
| obfd->has_armap = ibfd->has_armap; |
| obfd->is_thin_archive = ibfd->is_thin_archive; |
| |
| list = NULL; |
| |
| this_element = bfd_openr_next_archived_file (ibfd, NULL); |
| |
| if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| RETURN_NONFATAL (obfd); |
| |
| while (!status && this_element != NULL) |
| { |
| char *output_name; |
| bfd *output_bfd; |
| bfd *last_element; |
| struct stat buf; |
| int stat_status = 0; |
| bfd_boolean delete = TRUE; |
| |
| /* Create an output file for this member. */ |
| output_name = concat (dir, "/", |
| bfd_get_filename (this_element), (char *) 0); |
| |
| /* 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)); |
| |
| l = xmalloc (sizeof (struct name_list)); |
| l->name = output_name; |
| l->next = list; |
| l->obfd = NULL; |
| list = l; |
| output_name = concat (output_name, "/", |
| bfd_get_filename (this_element), (char *) 0); |
| } |
| |
| if (preserve_dates) |
| { |
| stat_status = bfd_stat_arch_elt (this_element, &buf); |
| |
| if (stat_status != 0) |
| non_fatal (_("internal stat error on %s"), |
| bfd_get_filename (this_element)); |
| } |
| |
| l = xmalloc (sizeof (struct name_list)); |
| l->name = output_name; |
| l->next = list; |
| l->obfd = NULL; |
| list = l; |
| |
| if (bfd_check_format (this_element, bfd_object)) |
| { |
| /* 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)); |
| |
| if (output_bfd == NULL) |
| { |
| bfd_nonfatal_message (output_name, NULL, NULL, NULL); |
| status = 1; |
| return; |
| } |
| |
| delete = ! copy_object (this_element, output_bfd); |
| |
| if (! delete |
| || bfd_get_arch (this_element) != bfd_arch_unknown) |
| { |
| if (!bfd_close (output_bfd)) |
| { |
| bfd_nonfatal_message (NULL, output_bfd, NULL, NULL); |
| /* Error in new object file. Don't change archive. */ |
| status = 1; |
| } |
| } |
| else |
| goto copy_unknown_element; |
| } |
| else |
| { |
| bfd_nonfatal_message (bfd_get_archive_filename (this_element), |
| NULL, NULL, |
| _("Unable to recognise the format of file")); |
| |
| output_bfd = bfd_openw (output_name, output_target); |
| copy_unknown_element: |
| delete = !copy_unknown_object (this_element, output_bfd); |
| if (!bfd_close_all_done (output_bfd)) |
| { |
| bfd_nonfatal_message (NULL, output_bfd, NULL, NULL); |
| /* Error in new object file. Don't change archive. */ |
| status = 1; |
| } |
| } |
| |
| if (delete) |
| { |
| unlink (output_name); |
| status = 1; |
| } |
| else |
| { |
| if (preserve_dates && stat_status == 0) |
| set_times (output_name, &buf); |
| |
| /* Open the newly output file and attach to our list. */ |
| output_bfd = bfd_openr (output_name, output_target); |
| |
| l->obfd = output_bfd; |
| |
| *ptr = output_bfd; |
| ptr = &output_bfd->archive_next; |
| |
| last_element = this_element; |
| |
| this_element = bfd_openr_next_archived_file (ibfd, last_element); |
| |
| bfd_close (last_element); |
| } |
| } |
| *ptr = NULL; |
| |
| if (!bfd_close (obfd)) |
| RETURN_NONFATAL (obfd); |
| |
| if (!bfd_close (ibfd)) |
| RETURN_NONFATAL (obfd); |
| |
| /* 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); |
| } |
| } |
| rmdir (dir); |
| } |
| |
| /* The top-level control. */ |
| |
| static void |
| copy_file (const char *input_filename, const char *output_filename, |
| const char *input_target, const char *output_target) |
| { |
| bfd *ibfd; |
| char **obj_matching; |
| char **core_matching; |
| |
| if (get_file_size (input_filename) < 1) |
| { |
| status = 1; |
| return; |
| } |
| |
| /* To allow us to do "strip *" without dying on the first |
| non-object file, failures are nonfatal. */ |
| ibfd = bfd_openr (input_filename, input_target); |
| if (ibfd == NULL) |
| { |
| bfd_nonfatal_message (input_filename, NULL, NULL, NULL); |
| status = 1; |
| return; |
| } |
| |
| 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. */ |
| if (output_target == NULL) |
| { |
| output_target = bfd_get_target (ibfd); |
| force_output_target = FALSE; |
| } |
| else |
| force_output_target = TRUE; |
| |
| obfd = bfd_openw (output_filename, output_target); |
| if (obfd == NULL) |
| { |
| bfd_nonfatal_message (output_filename, NULL, NULL, NULL); |
| status = 1; |
| return; |
| } |
| |
| copy_archive (ibfd, obfd, output_target, force_output_target); |
| } |
| else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching)) |
| { |
| bfd *obfd; |
| do_copy: |
| |
| /* bfd_get_target does not return the correct value until |
| bfd_check_format succeeds. */ |
| if (output_target == NULL) |
| output_target = bfd_get_target (ibfd); |
| |
| obfd = bfd_openw (output_filename, output_target); |
| if (obfd == NULL) |
| { |
| bfd_nonfatal_message (output_filename, NULL, NULL, NULL); |
| status = 1; |
| return; |
| } |
| |
| if (! copy_object (ibfd, obfd)) |
| status = 1; |
| |
| if (!bfd_close (obfd)) |
| RETURN_NONFATAL (obfd); |
| |
| if (!bfd_close (ibfd)) |
| RETURN_NONFATAL (ibfd); |
| } |
| else |
| { |
| bfd_error_type obj_error = bfd_get_error (); |
| bfd_error_type core_error; |
| |
| if (bfd_check_format_matches (ibfd, bfd_core, &core_matching)) |
| { |
| /* This probably can't happen.. */ |
| if (obj_error == bfd_error_file_ambiguously_recognized) |
| free (obj_matching); |
| goto do_copy; |
| } |
| |
| core_error = bfd_get_error (); |
| /* Report the object error in preference to the core error. */ |
| if (obj_error != core_error) |
| bfd_set_error (obj_error); |
| |
| bfd_nonfatal_message (input_filename, NULL, NULL, NULL); |
| |
| if (obj_error == bfd_error_file_ambiguously_recognized) |
| { |
| list_matching_formats (obj_matching); |
| free (obj_matching); |
| } |
| if (core_error == bfd_error_file_ambiguously_recognized) |
| { |
| list_matching_formats (core_matching); |
| free (core_matching); |
| } |
| |
| status = 1; |
| } |
| } |
| |
| /* Add a name to the section renaming list. */ |
| |
| static void |
| add_section_rename (const char * old_name, const char * new_name, |
| flagword flags) |
| { |
| section_rename * rename; |
| |
| /* Check for conflicts first. */ |
| for (rename = section_rename_list; rename != NULL; rename = rename->next) |
| if (strcmp (rename->old_name, old_name) == 0) |
| { |
| /* Silently ignore duplicate definitions. */ |
| if (strcmp (rename->new_name, new_name) == 0 |
| && rename->flags == flags) |
| return; |
| |
| fatal (_("Multiple renames of section %s"), old_name); |
| } |
| |
| rename = xmalloc (sizeof (* rename)); |
| |
| rename->old_name = old_name; |
| rename->new_name = new_name; |
| rename->flags = flags; |
| rename->next = section_rename_list; |
| |
| section_rename_list = rename; |
| } |
| |
| /* 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. */ |
| |
| static const char * |
| find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection, |
| flagword * returned_flags) |
| { |
| const char * old_name = bfd_section_name (ibfd, isection); |
| section_rename * rename; |
| |
| /* Default to using the flags of the input section. */ |
| * returned_flags = bfd_get_section_flags (ibfd, isection); |
| |
| for (rename = section_rename_list; rename != NULL; rename = rename->next) |
| if (strcmp (rename->old_name, old_name) == 0) |
| { |
| if (rename->flags != (flagword) -1) |
| * returned_flags = rename->flags; |
| |
| return rename->new_name; |
| } |
| |
| return old_name; |
| } |
| |
| /* Once each of the sections is copied, we may still need to do some |
| finalization work for private section headers. Do that here. */ |
| |
| static void |
| setup_bfd_headers (bfd *ibfd, bfd *obfd) |
| { |
| /* Allow the BFD backend to copy any private data it understands |
| from the input section to the output section. */ |
| if (! bfd_copy_private_header_data (ibfd, obfd)) |
| { |
| status = 1; |
| bfd_nonfatal_message (NULL, ibfd, NULL, |
| _("error in private h eader data")); |
| return; |
| } |
| |
| /* All went well. */ |
| return; |
| } |
| |
| /* Create a section in OBFD with the same |
| name and attributes as ISECTION in IBFD. */ |
| |
| static void |
| setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| { |
| bfd *obfd = obfdarg; |
| struct section_list *p; |
| sec_ptr osection; |
| bfd_size_type size; |
| bfd_vma vma; |
| bfd_vma lma; |
| flagword flags; |
| const char *err; |
| const char * name; |
| char *prefix = NULL; |
| bfd_boolean make_nobits; |
| |
| 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); |
| |
| /* Prefix sections. */ |
| if ((prefix_alloc_sections_string) |
| && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC)) |
| prefix = prefix_alloc_sections_string; |
| else if (prefix_sections_string) |
| prefix = prefix_sections_string; |
| |
| if (prefix) |
| { |
| char *n; |
| |
| n = xmalloc (strlen (prefix) + strlen (name) + 1); |
| strcpy (n, prefix); |
| strcat (n, name); |
| name = n; |
| } |
| |
| make_nobits = FALSE; |
| if (p != NULL && p->set_flags) |
| flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC)); |
| else if (strip_symbols == STRIP_NONDEBUG |
| && (flags & SEC_ALLOC) != 0 |
| && (ibfd->xvec->flavour != bfd_target_elf_flavour |
| || elf_section_type (isection) != SHT_NOTE)) |
| { |
| flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD); |
| if (obfd->xvec->flavour == bfd_target_elf_flavour) |
| { |
| make_nobits = TRUE; |
| |
| /* Twiddle the input section flags so that it seems to |
| elf.c:copy_private_bfd_data that section flags have not |
| changed between input and output sections. This hack |
| prevents wholesale rewriting of the program headers. */ |
| isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD); |
| } |
| } |
| |
| osection = bfd_make_section_anyway_with_flags (obfd, name, flags); |
| |
| if (osection == NULL) |
| { |
| err = _("failed to create output section"); |
| goto loser; |
| } |
| |
| if (make_nobits) |
| elf_section_type (osection) = SHT_NOBITS; |
| |
| size = bfd_section_size (ibfd, isection); |
| if (copy_byte >= 0) |
| size = (size + interleave - 1) / interleave; |
| else if (extract_symbol) |
| size = 0; |
| if (! bfd_set_section_size (obfd, osection, size)) |
| { |
| err = _("failed to set size"); |
| goto loser; |
| } |
| |
| 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; |
| else |
| vma += change_section_address; |
| |
| if (! bfd_set_section_vma (obfd, osection, vma)) |
| { |
| err = _("failed to set vma"); |
| goto loser; |
| } |
| |
| lma = isection->lma; |
| if ((p != NULL) && p->change_lma != CHANGE_IGNORE) |
| { |
| if (p->change_lma == CHANGE_MODIFY) |
| lma += p->lma_val; |
| else if (p->change_lma == CHANGE_SET) |
| lma = p->lma_val; |
| else |
| abort (); |
| } |
| else |
| lma += change_section_address; |
| |
| osection->lma = lma; |
| |
| /* FIXME: This is probably not enough. If we change the LMA we |
| may have to recompute the header for the file as well. */ |
| if (!bfd_set_section_alignment (obfd, |
| osection, |
| bfd_section_alignment (ibfd, isection))) |
| { |
| err = _("failed to set alignment"); |
| goto loser; |
| } |
| |
| /* Copy merge entity size. */ |
| osection->entsize = isection->entsize; |
| |
| /* 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); |
| |
| if (gsym != NULL) |
| { |
| gsym->flags |= BSF_KEEP; |
| if (ibfd->xvec->flavour == bfd_target_elf_flavour) |
| elf_group_id (isection) = gsym; |
| } |
| } |
| |
| /* Allow the BFD backend to copy any private data it understands |
| from the input section to the output section. */ |
| if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection)) |
| { |
| err = _("failed to copy private data"); |
| goto loser; |
| } |
| |
| /* All went well. */ |
| return; |
| |
| 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. */ |
| |
| static void |
| copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| { |
| bfd *obfd = 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; |
| |
| if (is_strip_section (ibfd, isection)) |
| return; |
| |
| flags = bfd_get_section_flags (ibfd, isection); |
| if ((flags & SEC_GROUP) != 0) |
| return; |
| |
| osection = isection->output_section; |
| size = bfd_get_section_size (isection); |
| |
| if (size == 0 || osection == 0) |
| return; |
| |
| if (extract_symbol) |
| return; |
| |
| p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE); |
| |
| /* Core files do not need to be relocated. */ |
| if (bfd_get_format (obfd) == bfd_core) |
| relsize = 0; |
| else |
| { |
| relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| |
| if (relsize < 0) |
| { |
| /* Do not complain if the target does not support relocations. */ |
| if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation) |
| relsize = 0; |
| else |
| { |
| status = 1; |
| bfd_nonfatal_message (NULL, ibfd, isection, NULL); |
| return; |
| } |
| } |
| } |
| |
| if (relsize == 0) |
| bfd_set_reloc (obfd, osection, NULL, 0); |
| else |
| { |
| relpp = 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) |
| { |
| /* Remove relocations which are not in |
| keep_strip_specific_list. */ |
| arelent **temp_relpp; |
| long temp_relcount = 0; |
| long i; |
| |
| temp_relpp = 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]; |
| relcount = temp_relcount; |
| free (relpp); |
| relpp = temp_relpp; |
| } |
| |
| bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount); |
| if (relcount == 0) |
| free (relpp); |
| } |
| |
| if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS |
| && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS) |
| { |
| void *memhunk = xmalloc (size); |
| |
| if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size)) |
| { |
| status = 1; |
| bfd_nonfatal_message (NULL, ibfd, isection, NULL); |
| return; |
| } |
| |
| if (reverse_bytes) |
| { |
| /* We don't handle leftover bytes (too many possible behaviors, |
| and we don't know what the user wants). The section length |
| must be a multiple of the number of bytes to swap. */ |
| if ((size % reverse_bytes) == 0) |
| { |
| unsigned long i, j; |
| bfd_byte b; |
| |
| for (i = 0; i < size; i += reverse_bytes) |
| for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++) |
| { |
| bfd_byte *m = (bfd_byte *) memhunk; |
| |
| b = m[i + j]; |
| m[i + j] = m[(i + reverse_bytes) - (j + 1)]; |
| m[(i + reverse_bytes) - (j + 1)] = b; |
| } |
| } |
| else |
| /* User must pad the section up in order to do this. */ |
| fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"), |
| bfd_section_name (ibfd, isection), reverse_bytes); |
| } |
| |
| if (copy_byte >= 0) |
| { |
| /* Keep only every `copy_byte'th byte in MEMHUNK. */ |
| char *from = (char *) memhunk + copy_byte; |
| char *to = memhunk; |
| char *end = (char *) memhunk + size; |
| |
| for (; from < end; from += interleave) |
| *to++ = *from; |
| |
| size = (size + interleave - 1 - copy_byte) / interleave; |
| osection->lma /= interleave; |
| } |
| |
| if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size)) |
| { |
| status = 1; |
| bfd_nonfatal_message (NULL, obfd, osection, NULL); |
| return; |
| } |
| free (memhunk); |
| } |
| else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0) |
| { |
| void *memhunk = xmalloc (size); |
| |
| /* We don't permit the user to turn off the SEC_HAS_CONTENTS |
| flag--they can just remove the section entirely and add it |
| back again. However, we do permit them to turn on the |
| SEC_HAS_CONTENTS flag, and take it to mean that the section |
| contents should be zeroed out. */ |
| |
| memset (memhunk, 0, size); |
| if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size)) |
| { |
| status = 1; |
| bfd_nonfatal_message (NULL, obfd, osection, NULL); |
| return; |
| } |
| free (memhunk); |
| } |
| } |
| |
| /* Get all the sections. This is used when --gap-fill or --pad-to is |
| used. */ |
| |
| static void |
| get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg) |
| { |
| asection ***secppp = secppparg; |
| |
| **secppp = osection; |
| ++(*secppp); |
| } |
| |
| /* Sort sections by VMA. This is called via qsort, and is used when |
| --gap-fill or --pad-to is used. We force non loadable or empty |
| sections to the front, where they are easier to ignore. */ |
| |
| static int |
| compare_section_lma (const void *arg1, const void *arg2) |
| { |
| const asection *const *sec1 = arg1; |
| const asection *const *sec2 = arg2; |
| flagword flags1, flags2; |
| |
| /* Sort non loadable sections to the front. */ |
| flags1 = (*sec1)->flags; |
| flags2 = (*sec2)->flags; |
| if ((flags1 & SEC_HAS_CONTENTS) == 0 |
| || (flags1 & SEC_LOAD) == 0) |
| { |
| if ((flags2 & SEC_HAS_CONTENTS) != 0 |
| && (flags2 & SEC_LOAD) != 0) |
| return -1; |
| } |
| else |
| { |
| if ((flags2 & SEC_HAS_CONTENTS) == 0 |
| || (flags2 & SEC_LOAD) == 0) |
| return 1; |
| } |
| |
| /* Sort sections by LMA. */ |
| if ((*sec1)->lma > (*sec2)->lma) |
| return 1; |
| else if ((*sec1)->lma < (*sec2)->lma) |
| return -1; |
| |
| /* Sort sections with the same LMA by size. */ |
| if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2)) |
| return 1; |
| else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* Mark all the symbols which will be used in output relocations with |
| the BSF_KEEP flag so that those symbols will not be stripped. |
| |
| Ignore relocations which will not appear in the output file. */ |
| |
| static void |
| mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg) |
| { |
| asymbol **symbols = symbolsarg; |
| long relsize; |
| arelent **relpp; |
| long relcount, i; |
| |
| /* Ignore an input section with no corresponding output section. */ |
| if (isection->output_section == NULL) |
| return; |
| |
| relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| if (relsize < 0) |
| { |
| /* Do not complain if the target does not support relocations. */ |
| if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation) |
| return; |
| bfd_fatal (bfd_get_filename (ibfd)); |
| } |
| |
| if (relsize == 0) |
| return; |
| |
| relpp = xmalloc (relsize); |
| relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols); |
| if (relcount < 0) |
| bfd_fatal (bfd_get_filename (ibfd)); |
| |
| /* Examine each symbol used in a relocation. If it's not one of the |
| 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 |
| && *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; |
| } |
| |
| if (relpp != NULL) |
| free (relpp); |
| } |
| |
| /* Write out debugging information. */ |
| |
| static bfd_boolean |
| 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_size_type symsize, stringsize; |
| asection *stabsec, *stabstrsec; |
| flagword flags; |
| |
| if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms, |
| &symsize, &strings, |
| &stringsize)) |
| return FALSE; |
| |
| flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING; |
| stabsec = bfd_make_section_with_flags (obfd, ".stab", flags); |
| stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags); |
| if (stabsec == NULL |
| || stabstrsec == NULL |
| || ! bfd_set_section_size (obfd, stabsec, symsize) |
| || ! bfd_set_section_size (obfd, stabstrsec, stringsize) |
| || ! bfd_set_section_alignment (obfd, stabsec, 2) |
| || ! bfd_set_section_alignment (obfd, stabstrsec, 0)) |
| { |
| bfd_nonfatal_message (NULL, obfd, NULL, |
| _("can't create debugging section")); |
| 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. */ |
| 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")); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| bfd_nonfatal_message (NULL, obfd, NULL, |
| _("don't know how to write debugging information for %s"), |
| bfd_get_target (obfd)); |
| return FALSE; |
| } |
| |
| static int |
| strip_main (int argc, char *argv[]) |
| { |
| char *input_target = NULL; |
| char *output_target = NULL; |
| bfd_boolean show_version = FALSE; |
| 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", |
| strip_options, (int *) 0)) != EOF) |
| { |
| switch (c) |
| { |
| case 'I': |
| input_target = optarg; |
| break; |
| case 'O': |
| output_target = optarg; |
| break; |
| case 'F': |
| input_target = output_target = optarg; |
| break; |
| case 'R': |
| p = find_section_list (optarg, TRUE); |
| p->remove = TRUE; |
| sections_removed = TRUE; |
| break; |
| case 's': |
| strip_symbols = STRIP_ALL; |
| break; |
| case 'S': |
| case 'g': |
| case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */ |
| strip_symbols = STRIP_DEBUG; |
| break; |
| case OPTION_STRIP_UNNEEDED: |
| strip_symbols = STRIP_UNNEEDED; |
| break; |
| case 'K': |
| add_specific_symbol (optarg, keep_specific_htab); |
| break; |
| case 'N': |
| add_specific_symbol (optarg, strip_specific_htab); |
| break; |
| case 'o': |
| output_file = optarg; |
| break; |
| case 'p': |
| preserve_dates = TRUE; |
| break; |
| case 'x': |
| discard_locals = LOCALS_ALL; |
| break; |
| case 'X': |
| discard_locals = LOCALS_START_L; |
| break; |
| case 'v': |
| verbose = TRUE; |
| break; |
| case 'V': |
| show_version = TRUE; |
| break; |
| case OPTION_FORMATS_INFO: |
| formats_info = TRUE; |
| break; |
| case OPTION_ONLY_KEEP_DEBUG: |
| strip_symbols = STRIP_NONDEBUG; |
| break; |
| case OPTION_KEEP_FILE_SYMBOLS: |
| keep_file_symbols = 1; |
| break; |
| case 0: |
| /* We've been given a long option. */ |
| break; |
| case 'w': |
| wildcard = TRUE; |
| break; |
| case 'H': |
| case 'h': |
| strip_usage (stdout, 0); |
| default: |
| strip_usage (stderr, 1); |
| } |
| } |
| |
| if (formats_info) |
| { |
| display_info (); |
| return 0; |
| } |
| |
| if (show_version) |
| print_version ("strip"); |
| |
| /* Default is to strip all symbols. */ |
| if (strip_symbols == STRIP_UNDEF |
| && discard_locals == LOCALS_UNDEF |
| && htab_elements (strip_specific_htab) == 0) |
| strip_symbols = STRIP_ALL; |
| |
| if (output_target == NULL) |
| output_target = input_target; |
| |
| i = optind; |
| if (i == argc |
| || (output_file != NULL && (i + 1) < argc)) |
| strip_usage (stderr, 1); |
| |
| for (; i < argc; i++) |
| { |
| int hold_status = status; |
| struct stat statbuf; |
| char *tmpname; |
| |
| if (get_file_size (argv[i]) < 1) |
| { |
| status = 1; |
| continue; |
| } |
| |
| if (preserve_dates) |
| /* No need to check the return value of stat(). |
| It has already been checked in get_file_size(). */ |
| stat (argv[i], &statbuf); |
| |
| if (output_file == NULL || strcmp (argv[i], output_file) == 0) |
| tmpname = make_tempname (argv[i]); |
| else |
| tmpname = output_file; |
| |
| if (tmpname == NULL) |
| { |
| bfd_nonfatal_message (argv[i], NULL, NULL, |
| _("could not create temporary file to hold stripped copy")); |
| status = 1; |
| continue; |
| } |
| |
| status = 0; |
| copy_file (argv[i], tmpname, input_target, output_target); |
| if (status == 0) |
| { |
| if (preserve_dates) |
| set_times (tmpname, &statbuf); |
| if (output_file != tmpname) |
| smart_rename (tmpname, output_file ? output_file : argv[i], |
| preserve_dates); |
| status = hold_status; |
| } |
| else |
| unlink_if_ordinary (tmpname); |
| if (output_file != tmpname) |
| free (tmpname); |
| } |
| |
| return status; |
| } |
| |
| static int |
| copy_main (int argc, char *argv[]) |
| { |
| char * binary_architecture = NULL; |
| char *input_filename = NULL; |
| char *output_filename = NULL; |
| char *tmpname; |
| char *input_target = NULL; |
| char *output_target = NULL; |
| bfd_boolean show_version = FALSE; |
| bfd_boolean change_warn = TRUE; |
| bfd_boolean formats_info = FALSE; |
| int c; |
| struct section_list *p; |
| struct stat statbuf; |
| |
| while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w", |
| copy_options, (int *) 0)) != EOF) |
| { |
| switch (c) |
| { |
| case 'b': |
| copy_byte = atoi (optarg); |
| if (copy_byte < 0) |
| fatal (_("byte number must be non-negative")); |
| break; |
| |
| case 'B': |
| binary_architecture = optarg; |
| break; |
| |
| case 'i': |
| interleave = atoi (optarg); |
| if (interleave < 1) |
| fatal (_("interleave must be positive")); |
| break; |
| |
| case 'I': |
| case 's': /* "source" - 'I' is preferred */ |
| input_target = optarg; |
| break; |
| |
| case 'O': |
| case 'd': /* "destination" - 'O' is preferred */ |
| output_target = optarg; |
| break; |
| |
| case 'F': |
| input_target = output_target = optarg; |
| break; |
| |
| case 'j': |
| p = find_section_list (optarg, TRUE); |
| if (p->remove) |
| fatal (_("%s both copied and removed"), optarg); |
| p->copy = TRUE; |
| 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; |
| break; |
| |
| case 'S': |
| strip_symbols = STRIP_ALL; |
| break; |
| |
| case 'g': |
| strip_symbols = STRIP_DEBUG; |
| break; |
| |
| case OPTION_STRIP_UNNEEDED: |
| strip_symbols = STRIP_UNNEEDED; |
| break; |
| |
| case OPTION_ONLY_KEEP_DEBUG: |
| strip_symbols = STRIP_NONDEBUG; |
| break; |
| |
| case OPTION_KEEP_FILE_SYMBOLS: |
| keep_file_symbols = 1; |
| break; |
| |
| case OPTION_ADD_GNU_DEBUGLINK: |
| gnu_debuglink_filename = optarg; |
| break; |
| |
| case 'K': |
| add_specific_symbol (optarg, keep_specific_htab); |
| break; |
| |
| case 'N': |
| add_specific_symbol (optarg, strip_specific_htab); |
| break; |
| |
| case OPTION_STRIP_UNNEEDED_SYMBOL: |
| add_specific_symbol (optarg, strip_unneeded_htab); |
| break; |
| |
| case 'L': |
| add_specific_symbol (optarg, localize_specific_htab); |
| break; |
| |
| case OPTION_GLOBALIZE_SYMBOL: |
| add_specific_symbol (optarg, globalize_specific_htab); |
| break; |
| |
| case 'G': |
| add_specific_symbol (optarg, keepglobal_specific_htab); |
| break; |
| |
| case 'W': |
| add_specific_symbol (optarg, weaken_specific_htab); |
| break; |
| |
| case 'p': |
| preserve_dates = TRUE; |
| break; |
| |
| case 'w': |
| wildcard = TRUE; |
| break; |
| |
| case 'x': |
| discard_locals = LOCALS_ALL; |
| break; |
| |
| case 'X': |
| discard_locals = LOCALS_START_L; |
| break; |
| |
| case 'v': |
| verbose = TRUE; |
| break; |
| |
| case 'V': |
| show_version = TRUE; |
| break; |
| |
| case OPTION_FORMATS_INFO: |
| formats_info = TRUE; |
| break; |
| |
| case OPTION_WEAKEN: |
| weaken = TRUE; |
| break; |
| |
| case OPTION_ADD_SECTION: |
| { |
| const char *s; |
| off_t size; |
| struct section_add *pa; |
| int len; |
| char *name; |
| FILE *f; |
| |
| s = strchr (optarg, '='); |
| |
| if (s == NULL) |
| fatal (_("bad format for %s"), "--add-section"); |
| |
| size = get_file_size (s + 1); |
| if (size < 1) |
| { |
| status = 1; |
| break; |
| } |
| |
| pa = xmalloc (sizeof (struct section_add)); |
| |
| len = s - optarg; |
| name = xmalloc (len + 1); |
| strncpy (name, optarg, len); |
| name[len] = '\0'; |
| pa->name = name; |
| |
| pa->filename = s + 1; |
| pa->size = size; |
| pa->contents = xmalloc (size); |
| |
| f = fopen (pa->filename, FOPEN_RB); |
| |
| if (f == NULL) |
| fatal (_("cannot open: %s: %s"), |
| pa->filename, strerror (errno)); |
| |
| if (fread (pa->contents, 1, pa->size, f) == 0 |
| || ferror (f)) |
| fatal (_("%s: fread failed"), pa->filename); |
| |
| fclose (f); |
| |
| pa->next = add_sections; |
| add_sections = pa; |
| } |
| break; |
| |
| case OPTION_CHANGE_START: |
| change_start = parse_vma (optarg, "--change-start"); |
| break; |
| |
| case OPTION_CHANGE_SECTION_ADDRESS: |
| case OPTION_CHANGE_SECTION_LMA: |
| case OPTION_CHANGE_SECTION_VMA: |
| { |
| 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"; |
| break; |
| case OPTION_CHANGE_SECTION_LMA: |
| option = "--change-section-lma"; |
| break; |
| case OPTION_CHANGE_SECTION_VMA: |
| option = "--change-section-vma"; |
| break; |
| } |
| |
| s = strchr (optarg, '='); |
| if (s == NULL) |
| { |
| s = strchr (optarg, '+'); |
| if (s == NULL) |
| { |
| s = strchr (optarg, '-'); |
| if (s == NULL) |
| fatal (_("bad format for %s"), option); |
| } |
| } |
| |
| len = s - optarg; |
| name = xmalloc (len + 1); |
| strncpy (name, optarg, len); |
| name[len] = '\0'; |
| |
| p = find_section_list (name, TRUE); |
| |
| val = parse_vma (s + 1, option); |
| |
| switch (*s) |
| { |
| case '=': what = CHANGE_SET; break; |
| case '-': val = - val; /* Drop through. */ |
| case '+': what = CHANGE_MODIFY; break; |
| } |
| |
| switch (c) |
| { |
| case OPTION_CHANGE_SECTION_ADDRESS: |
| p->change_vma = what; |
| p->vma_val = val; |
| /* Drop through. */ |
| |
| case OPTION_CHANGE_SECTION_LMA: |
| p->change_lma = what; |
| p->lma_val = val; |
| break; |
| |
| case OPTION_CHANGE_SECTION_VMA: |
| p->change_vma = what; |
| p->vma_val = val; |
| break; |
| } |
| } |
| break; |
| |
| case OPTION_CHANGE_ADDRESSES: |
| change_section_address = parse_vma (optarg, "--change-addresses"); |
| change_start = change_section_address; |
| break; |
| |
| case OPTION_CHANGE_WARNINGS: |
| change_warn = TRUE; |
| break; |
| |
| case OPTION_CHANGE_LEADING_CHAR: |
| change_leading_char = TRUE; |
| break; |
| |
| case OPTION_DEBUGGING: |
| convert_debugging = TRUE; |
| break; |
| |
| case OPTION_GAP_FILL: |
| { |
| bfd_vma gap_fill_vma; |
| |
| gap_fill_vma = parse_vma (optarg, "--gap-fill"); |
| gap_fill = (bfd_byte) gap_fill_vma; |
| if ((bfd_vma) gap_fill != gap_fill_vma) |
| { |
| char buff[20]; |
| |
| sprintf_vma (buff, gap_fill_vma); |
| |
| non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"), |
| buff, gap_fill); |
| } |
| gap_fill_set = TRUE; |
| } |
| break; |
| |
| case OPTION_NO_CHANGE_WARNINGS: |
| change_warn = FALSE; |
| break; |
| |
| case OPTION_PAD_TO: |
| pad_to = parse_vma (optarg, "--pad-to"); |
| pad_to_set = TRUE; |
| break; |
| |
| case OPTION_REMOVE_LEADING_CHAR: |
| remove_leading_char = TRUE; |
| break; |
| |
| case OPTION_REDEFINE_SYM: |
| { |
| /* Push this redefinition onto redefine_symbol_list. */ |
| |
| int len; |
| const char *s; |
| const char *nextarg; |
| char *source, *target; |
| |
| s = strchr (optarg, '='); |
| if (s == NULL) |
| fatal (_("bad format for %s"), "--redefine-sym"); |
| |
| len = s - optarg; |
| source = xmalloc (len + 1); |
| strncpy (source, optarg, len); |
| source[len] = '\0'; |
| |
| nextarg = s + 1; |
| len = strlen (nextarg); |
| target = xmalloc (len + 1); |
| strcpy (target, nextarg); |
| |
| redefine_list_append ("--redefine-sym", source, target); |
| |
| free (source); |
| free (target); |
| } |
| break; |
| |
| case OPTION_REDEFINE_SYMS: |
| add_redefine_syms_file (optarg); |
| break; |
| |
| case OPTION_SET_SECTION_FLAGS: |
| { |
| const char *s; |
| int len; |
| char *name; |
| |
| s = strchr (optarg, '='); |
| if (s == NULL) |
| fatal (_("bad format for %s"), "--set-section-flags"); |
| |
| len = s - optarg; |
| name = xmalloc (len + 1); |
| strncpy (name, optarg, len); |
| name[len] = '\0'; |
| |
| p = find_section_list (name, TRUE); |
| |
| p->set_flags = TRUE; |
| p->flags = parse_flags (s + 1); |
| } |
| break; |
| |
| case OPTION_RENAME_SECTION: |
| { |
| flagword flags; |
| const char *eq, *fl; |
| char *old_name; |
| char *new_name; |
| unsigned int len; |
| |
| eq = strchr (optarg, '='); |
| if (eq == NULL) |
| fatal (_("bad format for %s"), "--rename-section"); |
| |
| len = eq - optarg; |
| if (len == 0) |
| fatal (_("bad format for %s"), "--rename-section"); |
| |
| old_name = xmalloc (len + 1); |
| strncpy (old_name, optarg, len); |
| old_name[len] = 0; |
| |
| eq++; |
| fl = strchr (eq, ','); |
| if (fl) |
| { |
| flags = parse_flags (fl + 1); |
| len = fl - eq; |
| } |
| else |
| { |
| flags = -1; |
| len = strlen (eq); |
| } |
| |
| if (len == 0) |
| fatal (_("bad format for %s"), "--rename-section"); |
| |
| new_name = xmalloc (len + 1); |
| strncpy (new_name, eq, len); |
| new_name[len] = 0; |
| |
| add_section_rename (old_name, new_name, flags); |
| } |
| break; |
| |
| case OPTION_SET_START: |
| set_start = parse_vma (optarg, "--set-start"); |
| set_start_set = TRUE; |
| break; |
| |
| case OPTION_SREC_LEN: |
| Chunk = parse_vma (optarg, "--srec-len"); |
| break; |
| |
| case OPTION_SREC_FORCES3: |
| S3Forced = TRUE; |
| break; |
| |
| case OPTION_STRIP_SYMBOLS: |
| add_specific_symbols (optarg, strip_specific_htab); |
| break; |
| |
| case OPTION_STRIP_UNNEEDED_SYMBOLS: |
| add_specific_symbols (optarg, strip_unneeded_htab); |
| break; |
| |
| case OPTION_KEEP_SYMBOLS: |
| add_specific_symbols (optarg, keep_specific_htab); |
| break; |
| |
| case OPTION_LOCALIZE_HIDDEN: |
| localize_hidden = TRUE; |
| break; |
| |
| case OPTION_LOCALIZE_SYMBOLS: |
| add_specific_symbols (optarg, localize_specific_htab); |
| break; |
| |
| case OPTION_GLOBALIZE_SYMBOLS: |
| add_specific_symbols (optarg, globalize_specific_htab); |
| break; |
| |
| case OPTION_KEEPGLOBAL_SYMBOLS: |
| add_specific_symbols (optarg, keepglobal_specific_htab); |
| break; |
| |
| case OPTION_WEAKEN_SYMBOLS: |
| add_specific_symbols (optarg, weaken_specific_htab); |
| break; |
| |
| case OPTION_ALT_MACH_CODE: |
| use_alt_mach_code = strtoul (optarg, NULL, 0); |
| if (use_alt_mach_code == 0) |
| fatal (_("unable to parse alternative machine code")); |
| break; |
| |
| case OPTION_PREFIX_SYMBOLS: |
| prefix_symbols_string = optarg; |
| break; |
| |
| case OPTION_PREFIX_SECTIONS: |
| prefix_sections_string = optarg; |
| break; |
| |
| case OPTION_PREFIX_ALLOC_SECTIONS: |
| prefix_alloc_sections_string = optarg; |
| break; |
| |
| case OPTION_READONLY_TEXT: |
| bfd_flags_to_set |= WP_TEXT; |
| bfd_flags_to_clear &= ~WP_TEXT; |
| break; |
| |
| case OPTION_WRITABLE_TEXT: |
| bfd_flags_to_clear |= WP_TEXT; |
| bfd_flags_to_set &= ~WP_TEXT; |
| break; |
| |
| case OPTION_PURE: |
| bfd_flags_to_set |= D_PAGED; |
| bfd_flags_to_clear &= ~D_PAGED; |
| break; |
| |
| case OPTION_IMPURE: |
| bfd_flags_to_clear |= D_PAGED; |
| bfd_flags_to_set &= ~D_PAGED; |
| break; |
| |
| case OPTION_EXTRACT_SYMBOL: |
| extract_symbol = TRUE; |
| break; |
| |
| case OPTION_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")); |
| |
| if (prev && prev != reverse_bytes) |
| non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"), |
| prev); |
| break; |
| } |
| |
| case 0: |
| /* We've been given a long option. */ |
| break; |
| |
| case 'H': |
| case 'h': |
| copy_usage (stdout, 0); |
| |
| default: |
| copy_usage (stderr, 1); |
| } |
| } |
| |
| if (formats_info) |
| { |
| display_info (); |
| return 0; |
| } |
| |
| if (show_version) |
| print_version ("objcopy"); |
| |
| if (copy_byte >= interleave) |
| fatal (_("byte number must be less than interleave")); |
| |
| if (optind == argc || optind + 2 < argc) |
| copy_usage (stderr, 1); |
| |
| input_filename = argv[optind]; |
| if (optind + 1 < argc) |
| output_filename = argv[optind + 1]; |
| |
| /* Default is to strip no symbols. */ |
| if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF) |
| strip_symbols = STRIP_NONE; |
| |
| if (output_target == NULL) |
| output_target = input_target; |
| |
| if (binary_architecture != NULL) |
| { |
| if (input_target && strcmp (input_target, "binary") == 0) |
| { |
| const bfd_arch_info_type * temp_arch_info; |
| |
| temp_arch_info = bfd_scan_arch (binary_architecture); |
| |
| if (temp_arch_info != NULL) |
| { |
| bfd_external_binary_architecture = temp_arch_info->arch; |
| bfd_external_machine = temp_arch_info->mach; |
| } |
| else |
| fatal (_("architecture %s unknown"), binary_architecture); |
| } |
| else |
| { |
| non_fatal (_("Warning: input target 'binary' required for binary architecture parameter.")); |
| non_fatal (_(" Argument %s ignored"), binary_architecture); |
| } |
| } |
| |
| if (preserve_dates) |
| if (stat (input_filename, & statbuf) < 0) |
| fatal (_("warning: could not locate '%s'. System error message: %s"), |
| input_filename, strerror (errno)); |
| |
| /* If there is no destination file, or the source and destination files |
| are the same, then create a temp and rename the result into the input. */ |
| if (output_filename == NULL || strcmp (input_filename, output_filename) == 0) |
| tmpname = make_tempname (input_filename); |
| else |
| tmpname = output_filename; |
| |
| if (tmpname == NULL) |
| fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"), |
| input_filename, strerror (errno)); |
| |
| copy_file (input_filename, tmpname, input_target, output_target); |
| if (status == 0) |
| { |
| if (preserve_dates) |
| set_times (tmpname, &statbuf); |
| if (tmpname != output_filename) |
| smart_rename (tmpname, input_filename, preserve_dates); |
| } |
| else |
| unlink_if_ordinary (tmpname); |
| |
| if (change_warn) |
| { |
| for (p = change_sections; p != NULL; p = p->next) |
| { |
| if (! p->used) |
| { |
| if (p->change_vma != CHANGE_IGNORE) |
| { |
| char buff [20]; |
| |
| sprintf_vma (buff, p->vma_val); |
| |
| /* xgettext:c-format */ |
| non_fatal (_("%s %s%c0x%s never used"), |
| "--change-section-vma", |
| p->name, |
| p->change_vma == CHANGE_SET ? '=' : '+', |
| buff); |
| } |
| |
| if (p->change_lma != CHANGE_IGNORE) |
| { |
| char buff [20]; |
| |
| sprintf_vma (buff, p->lma_val); |
| |
| /* xgettext:c-format */ |
| non_fatal (_("%s %s%c0x%s never used"), |
| "--change-section-lma", |
| p->name, |
| p->change_lma == CHANGE_SET ? '=' : '+', |
| buff); |
| } |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
| setlocale (LC_MESSAGES, ""); |
| #endif |
| #if defined (HAVE_SETLOCALE) |
| setlocale (LC_CTYPE, ""); |
| #endif |
| bindtextdomain (PACKAGE, LOCALEDIR); |
| textdomain (PACKAGE); |
| |
| program_name = argv[0]; |
| xmalloc_set_program_name (program_name); |
| |
| START_PROGRESS (program_name, 0); |
| |
| expandargv (&argc, &argv); |
| |
| strip_symbols = STRIP_UNDEF; |
| discard_locals = LOCALS_UNDEF; |
| |
| bfd_init (); |
| set_default_bfd_target (); |
| |
| if (is_strip < 0) |
| { |
| int i = strlen (program_name); |
| #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| /* Drop the .exe suffix, if any. */ |
| if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0) |
| { |
| i -= 4; |
| program_name[i] = '\0'; |
| } |
| #endif |
| is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0); |
| } |
| |
| create_symbol_htabs (); |
| |
| if (is_strip) |
| strip_main (argc, argv); |
| else |
| copy_main (argc, argv); |
| |
| END_PROGRESS (program_name); |
| |
| return status; |
| } |