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author | Jing Yu <jingyu@google.com> | 2011-12-20 10:27:58 -0800 |
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committer | Jing Yu <jingyu@google.com> | 2011-12-20 10:27:58 -0800 |
commit | cf3cdbf8b3cda61a619299e7966a83df66244036 (patch) | |
tree | 201e2bcfc955f16802d3257112d29736cb3a3ce8 /binutils-2.21/binutils/objcopy.c | |
parent | e4df3e0a5bb640ccfa2f30ee67fe9b3146b152d6 (diff) | |
download | toolchain_binutils-cf3cdbf8b3cda61a619299e7966a83df66244036.zip toolchain_binutils-cf3cdbf8b3cda61a619299e7966a83df66244036.tar.gz toolchain_binutils-cf3cdbf8b3cda61a619299e7966a83df66244036.tar.bz2 |
Add binutils-2.21.
Use --enable-gold=default for dual linker support.
Change-Id: Id1a744c7db58a0b5e7a3be174cdfa875f2f86e49
Diffstat (limited to 'binutils-2.21/binutils/objcopy.c')
-rw-r--r-- | binutils-2.21/binutils/objcopy.c | 4032 |
1 files changed, 4032 insertions, 0 deletions
diff --git a/binutils-2.21/binutils/objcopy.c b/binutils-2.21/binutils/objcopy.c new file mode 100644 index 0000000..2077fca --- /dev/null +++ b/binutils-2.21/binutils/objcopy.c @@ -0,0 +1,4032 @@ +/* objcopy.c -- copy object file from input to output, optionally massaging it. + Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, + 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 + Free Software Foundation, Inc. + + 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" +#include "coff/internal.h" +#include "libcoff.h" + +/* FIXME: See bfd/peXXigen.c for why we include an architecture specific + header in generic PE code. */ +#include "coff/i386.h" +#include "coff/pe.h" + +static bfd_vma pe_file_alignment = (bfd_vma) -1; +static bfd_vma pe_heap_commit = (bfd_vma) -1; +static bfd_vma pe_heap_reserve = (bfd_vma) -1; +static bfd_vma pe_image_base = (bfd_vma) -1; +static bfd_vma pe_section_alignment = (bfd_vma) -1; +static bfd_vma pe_stack_commit = (bfd_vma) -1; +static bfd_vma pe_stack_reserve = (bfd_vma) -1; +static short pe_subsystem = -1; +static short pe_major_subsystem_version = -1; +static short pe_minor_subsystem_version = -1; + +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; + +static asymbol **isympp = NULL; /* Input symbols. */ +static asymbol **osympp = NULL; /* Output symbols that survive stripping. */ + +/* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */ +static int copy_byte = -1; +static int interleave = 0; /* Initialised to 4 in copy_main(). */ +static int copy_width = 1; + +static bfd_boolean verbose; /* Print file and target names. */ +static bfd_boolean preserve_dates; /* Preserve input file timestamp. */ +static int status = 0; /* Exit status. */ + +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 compress/decompress DWARF debug sections. */ +static enum +{ + nothing, + compress, + decompress +} do_debug_sections = nothing; + +/* 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; + +/* For Coff objects, we may want to allow or disallow long section names, + or preserve them where found in the inputs. Debug info relies on them. */ +enum long_section_name_handling + { + DISABLE, + ENABLE, + KEEP + }; + +/* The default long section handling mode is to preserve them. + This is also the only behaviour for 'strip'. */ +static enum long_section_name_handling long_section_names = KEEP; + +/* 150 isn't special; it's just an arbitrary non-ASCII char value. */ +enum command_line_switch + { + OPTION_ADD_SECTION=150, + OPTION_CHANGE_ADDRESSES, + OPTION_CHANGE_LEADING_CHAR, + OPTION_CHANGE_START, + OPTION_CHANGE_SECTION_ADDRESS, + OPTION_CHANGE_SECTION_LMA, + OPTION_CHANGE_SECTION_VMA, + OPTION_CHANGE_WARNINGS, + OPTION_COMPRESS_DEBUG_SECTIONS, + OPTION_DEBUGGING, + OPTION_DECOMPRESS_DEBUG_SECTIONS, + OPTION_GAP_FILL, + OPTION_NO_CHANGE_WARNINGS, + OPTION_PAD_TO, + OPTION_REMOVE_LEADING_CHAR, + OPTION_SET_SECTION_FLAGS, + OPTION_SET_START, + OPTION_STRIP_UNNEEDED, + OPTION_WEAKEN, + OPTION_REDEFINE_SYM, + OPTION_REDEFINE_SYMS, + OPTION_SREC_LEN, + OPTION_SREC_FORCES3, + OPTION_STRIP_SYMBOLS, + OPTION_STRIP_UNNEEDED_SYMBOL, + OPTION_STRIP_UNNEEDED_SYMBOLS, + OPTION_KEEP_SYMBOLS, + OPTION_LOCALIZE_HIDDEN, + OPTION_LOCALIZE_SYMBOLS, + OPTION_LONG_SECTION_NAMES, + OPTION_GLOBALIZE_SYMBOL, + OPTION_GLOBALIZE_SYMBOLS, + OPTION_KEEPGLOBAL_SYMBOLS, + OPTION_WEAKEN_SYMBOLS, + OPTION_RENAME_SECTION, + OPTION_ALT_MACH_CODE, + OPTION_PREFIX_SYMBOLS, + OPTION_PREFIX_SECTIONS, + OPTION_PREFIX_ALLOC_SECTIONS, + OPTION_FORMATS_INFO, + OPTION_ADD_GNU_DEBUGLINK, + OPTION_ONLY_KEEP_DEBUG, + OPTION_KEEP_FILE_SYMBOLS, + OPTION_READONLY_TEXT, + OPTION_WRITABLE_TEXT, + OPTION_PURE, + OPTION_IMPURE, + OPTION_EXTRACT_SYMBOL, + OPTION_REVERSE_BYTES, + OPTION_FILE_ALIGNMENT, + OPTION_HEAP, + OPTION_IMAGE_BASE, + OPTION_SECTION_ALIGNMENT, + OPTION_STACK, + OPTION_INTERLEAVE_WIDTH, + OPTION_SUBSYSTEM + }; + +/* 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}, + {"compress-debug-sections", no_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS}, + {"debugging", no_argument, 0, OPTION_DEBUGGING}, + {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS}, + {"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", optional_argument, 0, 'i'}, + {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH}, + {"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}, + {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES}, + {"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}, + {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT}, + {"heap", required_argument, 0, OPTION_HEAP}, + {"image-base", required_argument, 0 , OPTION_IMAGE_BASE}, + {"section-alignment", required_argument, 0, OPTION_SECTION_ALIGNMENT}, + {"stack", required_argument, 0, OPTION_STACK}, + {"subsystem", required_argument, 0, OPTION_SUBSYSTEM}, + {0, no_argument, 0, 0} +}; + +/* 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; + +/* 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 output arch, when input is arch-less\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 N out of every <number> bytes\n\ + --interleave-width <number> Set N for --interleave\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\ + --long-section-names {enable|disable|keep}\n\ + Handle long section names in Coff objects.\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\ + --file-alignment <num> Set PE file alignment to <num>\n\ + --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\ + <commit>\n\ + --image-base <address> Set PE image base to <address>\n\ + --section-alignment <num> Set PE section alignment to <num>\n\ + --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\ + <commit>\n\ + --subsystem <name>[:<version>]\n\ + Set PE subsystem to <name> [& <version>]\n\ + --compress-debug-sections Compress DWARF debug sections using zlib\n\ + --decompress-debug-sections Decompress DWARF debug sections using zlib\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 = (char *) 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 = (struct section_list *) 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 ((const char *) s1, (const char *) 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 = (char *) 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 = + (struct is_specified_symbol_predicate_data *) data; + const char *slot_name = (char *) *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/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 = (char *) xmalloc (1 + strlen (prefix_symbols_string) + + strlen (name) + 1); + if (add_leading_char) + *ptr++ = bfd_get_symbol_leading_char (obfd); + + if (prefix_symbols_string) + { + strcpy (ptr, prefix_symbols_string); + ptr += strlen (prefix_symbols_string); + } + + 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 + || bfd_is_com_section (bfd_get_section (sym)))) + 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 = (struct redefine_node *) xmalloc (sizeof (struct redefine_node)); + + new_node->source = strdup (source); + new_node->target = strdup (target); + new_node->next = NULL; + + *p = new_node; +} + +/* 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 = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */); + + 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 = (char *) xrealloc (buf, bufsize + 1); + } + 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 = (char *) xrealloc (buf, bufsize + 1); + } + 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 (NULL, ibfd, 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 = (char *) 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 (NULL, ibfd, 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, const bfd_arch_info_type *input_arch) +{ + 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 (strip_symbols == STRIP_ALL) + flags &= ~HAS_RELOC; + + if (!bfd_set_start_address (obfd, start) + || !bfd_set_file_flags (obfd, flags)) + { + bfd_nonfatal_message (NULL, ibfd, NULL, NULL); + return FALSE; + } + } + + /* Copy architecture of input file to output file. */ + iarch = bfd_get_arch (ibfd); + imach = bfd_get_mach (ibfd); + if (input_arch) + { + if (bfd_get_arch_info (ibfd) == NULL + || bfd_get_arch_info (ibfd)->arch == bfd_arch_unknown) + { + iarch = input_arch->arch; + imach = input_arch->mach; + } + else + non_fatal (_("Input file `%s' ignores binary architecture parameter."), + bfd_get_archive_filename (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 (_("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 (NULL, ibfd, NULL, NULL); + return FALSE; + } + + if (bfd_get_flavour (obfd) == bfd_target_coff_flavour + && bfd_pei_p (obfd)) + { + /* Set up PE parameters. */ + pe_data_type *pe = pe_data (obfd); + + /* Copy PE parameters before changing them. */ + if (ibfd->xvec->flavour == bfd_target_coff_flavour + && bfd_pei_p (ibfd)) + pe->pe_opthdr = pe_data (ibfd)->pe_opthdr; + + if (pe_file_alignment != (bfd_vma) -1) + pe->pe_opthdr.FileAlignment = pe_file_alignment; + else + pe_file_alignment = PE_DEF_FILE_ALIGNMENT; + + if (pe_heap_commit != (bfd_vma) -1) + pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit; + + if (pe_heap_reserve != (bfd_vma) -1) + pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve; + + if (pe_image_base != (bfd_vma) -1) + pe->pe_opthdr.ImageBase = pe_image_base; + + if (pe_section_alignment != (bfd_vma) -1) + pe->pe_opthdr.SectionAlignment = pe_section_alignment; + else + pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; + + if (pe_stack_commit != (bfd_vma) -1) + pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit; + + if (pe_stack_reserve != (bfd_vma) -1) + pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve; + + if (pe_subsystem != -1) + pe->pe_opthdr.Subsystem = pe_subsystem; + + if (pe_major_subsystem_version != -1) + pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version; + + if (pe_minor_subsystem_version != -1) + pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version; + + if (pe_file_alignment > pe_section_alignment) + { + char file_alignment[20], section_alignment[20]; + + sprintf_vma (file_alignment, pe_file_alignment); + sprintf_vma (section_alignment, pe_section_alignment); + non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"), + + file_alignment, section_alignment); + } + } + + 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 (NULL, ibfd, NULL, NULL); + return FALSE; + } + + osympp = isympp = (asymbol **) 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 + { + /* We use LINKER_CREATED here so that the backend hooks + will create any special section type information, + instead of presuming we know what we're doing merely + because we set the flags. */ + padd->section = bfd_make_section_with_flags + (obfd, padd->name, flags | SEC_LINKER_CREATED); + 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 = (asection **) xmalloc (c * sizeof (asection *)); + set = osections; + bfd_map_over_sections (obfd, get_sections, &set); + + qsort (osections, c, sizeof (asection *), compare_section_lma); + + gaps = (bfd_size_type *) 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 = (asymbol **) 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 = (bfd_byte *) 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, + const bfd_arch_info_type *input_arch) +{ + struct name_list + { + struct name_list *next; + const char *name; + bfd *obfd; + } *list, *l; + bfd **ptr = &obfd->archive_head; + bfd *this_element; + char *dir; + const char *filename; + + /* 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))) + { + status = 1; + bfd_nonfatal_message (NULL, obfd, NULL, NULL); + return; + } + + while (!status && this_element != NULL) + { + char *output_name; + bfd *output_bfd; + bfd *last_element; + struct stat buf; + int stat_status = 0; + bfd_boolean del = 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 = (struct name_list *) 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 = (struct name_list *) 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; + } + + del = ! copy_object (this_element, output_bfd, input_arch); + + if (! del + || bfd_get_arch (this_element) != bfd_arch_unknown) + { + if (!bfd_close (output_bfd)) + { + bfd_nonfatal_message (output_name, NULL, NULL, NULL); + /* Error in new object file. Don't change archive. */ + status = 1; + } + } + else + goto copy_unknown_element; + } + else + { + bfd_nonfatal_message (NULL, this_element, NULL, + _("Unable to recognise the format of file")); + + output_bfd = bfd_openw (output_name, output_target); +copy_unknown_element: + del = !copy_unknown_object (this_element, output_bfd); + if (!bfd_close_all_done (output_bfd)) + { + bfd_nonfatal_message (output_name, NULL, NULL, NULL); + /* Error in new object file. Don't change archive. */ + status = 1; + } + } + + if (del) + { + 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; + + filename = bfd_get_filename (obfd); + if (!bfd_close (obfd)) + { + status = 1; + bfd_nonfatal_message (filename, NULL, NULL, NULL); + return; + } + + filename = bfd_get_filename (ibfd); + if (!bfd_close (ibfd)) + { + status = 1; + bfd_nonfatal_message (filename, NULL, NULL, NULL); + return; + } + + /* 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); +} + +static void +set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style) +{ + /* This is only relevant to Coff targets. */ + if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour) + { + if (style == KEEP + && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour) + style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE; + bfd_coff_set_long_section_names (output_bfd, style != DISABLE); + } +} + +/* The top-level control. */ + +static void +copy_file (const char *input_filename, const char *output_filename, + const char *input_target, const char *output_target, + const bfd_arch_info_type *input_arch) +{ + bfd *ibfd; + char **obj_matching; + char **core_matching; + off_t size = get_file_size (input_filename); + + if (size < 1) + { + if (size == 0) + non_fatal (_("error: the input file '%s' is empty"), + input_filename); + 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; + } + + switch (do_debug_sections) + { + case compress: + ibfd->flags |= BFD_COMPRESS; + break; + case decompress: + ibfd->flags |= BFD_DECOMPRESS; + break; + default: + break; + } + + if (bfd_check_format (ibfd, bfd_archive)) + { + bfd_boolean force_output_target; + bfd *obfd; + + /* bfd_get_target does not return the correct value until + bfd_check_format succeeds. */ + 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; + } + /* This is a no-op on non-Coff targets. */ + set_long_section_mode (obfd, ibfd, long_section_names); + + copy_archive (ibfd, obfd, output_target, force_output_target, input_arch); + } + 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; + } + /* This is a no-op on non-Coff targets. */ + set_long_section_mode (obfd, ibfd, long_section_names); + + if (! copy_object (ibfd, obfd, input_arch)) + status = 1; + + if (!bfd_close (obfd)) + { + status = 1; + bfd_nonfatal_message (output_filename, NULL, NULL, NULL); + return; + } + + if (!bfd_close (ibfd)) + { + status = 1; + bfd_nonfatal_message (input_filename, NULL, NULL, NULL); + return; + } + } + 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 * srename; + + /* Check for conflicts first. */ + for (srename = section_rename_list; srename != NULL; srename = srename->next) + if (strcmp (srename->old_name, old_name) == 0) + { + /* Silently ignore duplicate definitions. */ + if (strcmp (srename->new_name, new_name) == 0 + && srename->flags == flags) + return; + + fatal (_("Multiple renames of section %s"), old_name); + } + + srename = (section_rename *) xmalloc (sizeof (* srename)); + + srename->old_name = old_name; + srename->new_name = new_name; + srename->flags = flags; + srename->next = section_rename_list; + + section_rename_list = srename; +} + +/* 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 * srename; + + /* Default to using the flags of the input section. */ + * returned_flags = bfd_get_section_flags (ibfd, isection); + + for (srename = section_rename_list; srename != NULL; srename = srename->next) + if (strcmp (srename->old_name, old_name) == 0) + { + if (srename->flags != (flagword) -1) + * returned_flags = srename->flags; + + return srename->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 header 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 = (bfd *) 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 = (char *) 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 | SEC_GROUP)) != 0 + && !(ibfd->xvec->flavour == bfd_target_elf_flavour + && elf_section_type (isection) == SHT_NOTE)) + { + flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP); + 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 | SEC_GROUP); + } + } + + 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 * copy_width; + 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 = (bfd *) obfdarg; + struct section_list *p; + arelent **relpp; + long relcount; + sec_ptr osection; + bfd_size_type size; + long relsize; + flagword flags; + + /* If we have already failed earlier on, + do not keep on generating complaints now. */ + if (status != 0) + return; + + 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 = (arelent **) xmalloc (relsize); + relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); + if (relcount < 0) + { + status = 1; + bfd_nonfatal_message (NULL, ibfd, isection, + _("relocation count is negative")); + return; + } + + if (strip_symbols == STRIP_ALL) + { + /* Remove relocations which are not in + keep_strip_specific_list. */ + arelent **temp_relpp; + long temp_relcount = 0; + long i; + + temp_relpp = (arelent **) xmalloc (relsize); + for (i = 0; i < relcount; i++) + if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr), + keep_specific_htab)) + temp_relpp [temp_relcount++] = relpp [i]; + 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) + { + bfd_byte *memhunk = NULL; + + if (!bfd_get_full_section_contents (ibfd, isection, &memhunk)) + { + 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 = (char *) memhunk; + char *end = (char *) memhunk + size; + int i; + + for (; from < end; from += interleave) + for (i = 0; i < copy_width; i++) + *to++ = from[i]; + + size = (size + interleave - 1 - copy_byte) / interleave * copy_width; + 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 = (asection ***) 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 = (const asection * const *) arg1; + const asection *const *sec2 = (const asection * const *) 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 = (asymbol **) 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 = (arelent **) 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, NULL); + if (status == 0) + { + if (preserve_dates) + set_times (tmpname, &statbuf); + if (output_file != tmpname) + status = (smart_rename (tmpname, + output_file ? output_file : argv[i], + preserve_dates) != 0); + if (status == 0) + status = hold_status; + } + else + unlink_if_ordinary (tmpname); + if (output_file != tmpname) + free (tmpname); + } + + return status; +} + +/* Set up PE subsystem. */ + +static void +set_pe_subsystem (const char *s) +{ + const char *version, *subsystem; + size_t i; + static const struct + { + const char *name; + const char set_def; + const short value; + } + v[] = + { + { "native", 0, IMAGE_SUBSYSTEM_NATIVE }, + { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI }, + { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI }, + { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI }, + { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI }, + { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION }, + { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER }, + { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER }, + { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER }, + { "xbox", 0, IMAGE_SUBSYSTEM_XBOX } + }; + short value; + char *copy; + int set_def = -1; + + /* Check for the presence of a version number. */ + version = strchr (s, ':'); + if (version == NULL) + subsystem = s; + else + { + int len = version - s; + copy = xstrdup (s); + subsystem = copy; + copy[len] = '\0'; + version = copy + 1 + len; + pe_major_subsystem_version = strtoul (version, ©, 0); + if (*copy == '.') + pe_minor_subsystem_version = strtoul (copy + 1, ©, 0); + if (*copy != '\0') + non_fatal (_("%s: bad version in PE subsystem"), s); + } + + /* Check for numeric subsystem. */ + value = (short) strtol (subsystem, ©, 0); + if (*copy == '\0') + { + for (i = 0; i < ARRAY_SIZE (v); i++) + if (v[i].value == value) + { + pe_subsystem = value; + set_def = v[i].set_def; + break; + } + } + else + { + /* Search for subsystem by name. */ + for (i = 0; i < ARRAY_SIZE (v); i++) + if (strcmp (subsystem, v[i].name) == 0) + { + pe_subsystem = v[i].value; + set_def = v[i].set_def; + break; + } + } + + switch (set_def) + { + case -1: + fatal (_("unknown PE subsystem: %s"), s); + break; + case 0: + break; + default: + if (pe_file_alignment == (bfd_vma) -1) + pe_file_alignment = PE_DEF_FILE_ALIGNMENT; + if (pe_section_alignment == (bfd_vma) -1) + pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; + break; + } +} + +/* Convert EFI target to PEI target. */ + +static void +convert_efi_target (char *efi) +{ + efi[0] = 'p'; + efi[1] = 'e'; + efi[2] = 'i'; + + if (strcmp (efi + 4, "ia32") == 0) + { + /* Change ia32 to i386. */ + efi[5]= '3'; + efi[6]= '8'; + efi[7]= '6'; + } + else if (strcmp (efi + 4, "x86_64") == 0) + { + /* Change x86_64 to x86-64. */ + efi[7] = '-'; + } +} + +static int +copy_main (int argc, char *argv[]) +{ + 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; + const bfd_arch_info_type *input_arch = NULL; + struct dwarf_debug_section *d; + + 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': + input_arch = bfd_scan_arch (optarg); + if (input_arch == NULL) + fatal (_("architecture %s unknown"), optarg); + break; + + case 'i': + if (optarg) + { + interleave = atoi (optarg); + if (interleave < 1) + fatal (_("interleave must be positive")); + } + else + interleave = 4; + break; + + case OPTION_INTERLEAVE_WIDTH: + copy_width = atoi (optarg); + if (copy_width < 1) + fatal(_("interleave width 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; + size_t off, alloc; + struct section_add *pa; + FILE *f; + + s = strchr (optarg, '='); + + if (s == NULL) + fatal (_("bad format for %s"), "--add-section"); + + pa = (struct section_add *) xmalloc (sizeof (struct section_add)); + pa->name = xstrndup (optarg, s - optarg); + pa->filename = s + 1; + + /* We don't use get_file_size so that we can do + --add-section .note.GNU_stack=/dev/null + get_file_size doesn't work on /dev/null. */ + + f = fopen (pa->filename, FOPEN_RB); + if (f == NULL) + fatal (_("cannot open: %s: %s"), + pa->filename, strerror (errno)); + + off = 0; + alloc = 4096; + pa->contents = (bfd_byte *) xmalloc (alloc); + while (!feof (f)) + { + off_t got; + + if (off == alloc) + { + alloc <<= 1; + pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc); + } + + got = fread (pa->contents + off, 1, alloc - off, f); + if (ferror (f)) + fatal (_("%s: fread failed"), pa->filename); + + off += got; + } + + pa->size = off; + + fclose (f); + + 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 = (char *) 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_COMPRESS_DEBUG_SECTIONS: + do_debug_sections = compress; + break; + + case OPTION_DEBUGGING: + convert_debugging = TRUE; + break; + + case OPTION_DECOMPRESS_DEBUG_SECTIONS: + do_debug_sections = decompress; + 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 = (char *) xmalloc (len + 1); + strncpy (source, optarg, len); + source[len] = '\0'; + + nextarg = s + 1; + len = strlen (nextarg); + target = (char *) 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 = (char *) 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 = (char *) 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 = (char *) 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_LONG_SECTION_NAMES: + if (!strcmp ("enable", optarg)) + long_section_names = ENABLE; + else if (!strcmp ("disable", optarg)) + long_section_names = DISABLE; + else if (!strcmp ("keep", optarg)) + long_section_names = KEEP; + else + fatal (_("unknown long section names option '%s'"), optarg); + 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 OPTION_FILE_ALIGNMENT: + pe_file_alignment = parse_vma (optarg, "--file-alignment"); + break; + + case OPTION_HEAP: + { + char *end; + pe_heap_reserve = strtoul (optarg, &end, 0); + if (end == optarg + || (*end != '.' && *end != '\0')) + non_fatal (_("%s: invalid reserve value for --heap"), + optarg); + else if (*end != '\0') + { + pe_heap_commit = strtoul (end + 1, &end, 0); + if (*end != '\0') + non_fatal (_("%s: invalid commit value for --heap"), + optarg); + } + } + break; + + case OPTION_IMAGE_BASE: + pe_image_base = parse_vma (optarg, "--image-base"); + break; + + case OPTION_SECTION_ALIGNMENT: + pe_section_alignment = parse_vma (optarg, + "--section-alignment"); + break; + + case OPTION_SUBSYSTEM: + set_pe_subsystem (optarg); + break; + + case OPTION_STACK: + { + char *end; + pe_stack_reserve = strtoul (optarg, &end, 0); + if (end == optarg + || (*end != '.' && *end != '\0')) + non_fatal (_("%s: invalid reserve value for --stack"), + optarg); + else if (*end != '\0') + { + pe_stack_commit = strtoul (end + 1, &end, 0); + if (*end != '\0') + non_fatal (_("%s: invalid commit value for --stack"), + optarg); + } + } + 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 (interleave && copy_byte == -1) + fatal (_("interleave start byte must be set with --byte")); + + if (copy_byte >= interleave) + fatal (_("byte number must be less than interleave")); + + if (copy_width > interleave - copy_byte) + fatal (_("interleave width must be less than or equal to interleave - byte`")); + + 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; + + /* Convert input EFI target to PEI target. */ + if (input_target != NULL + && strncmp (input_target, "efi-", 4) == 0) + { + char *efi; + + efi = xstrdup (output_target + 4); + if (strncmp (efi, "bsdrv-", 6) == 0 + || strncmp (efi, "rtdrv-", 6) == 0) + efi += 2; + else if (strncmp (efi, "app-", 4) != 0) + fatal (_("unknown input EFI target: %s"), input_target); + + input_target = efi; + convert_efi_target (efi); + } + + /* Convert output EFI target to PEI target. */ + if (output_target != NULL + && strncmp (output_target, "efi-", 4) == 0) + { + char *efi; + + efi = xstrdup (output_target + 4); + if (strncmp (efi, "app-", 4) == 0) + { + if (pe_subsystem == -1) + pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION; + } + else if (strncmp (efi, "bsdrv-", 6) == 0) + { + if (pe_subsystem == -1) + pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER; + efi += 2; + } + else if (strncmp (efi, "rtdrv-", 6) == 0) + { + if (pe_subsystem == -1) + pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER; + efi += 2; + } + else + fatal (_("unknown output EFI target: %s"), output_target); + + if (pe_file_alignment == (bfd_vma) -1) + pe_file_alignment = PE_DEF_FILE_ALIGNMENT; + if (pe_section_alignment == (bfd_vma) -1) + pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; + + output_target = efi; + convert_efi_target (efi); + } + + 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)); + + switch (do_debug_sections) + { + case compress: + for (d = dwarf_debug_sections; d->uncompressed_name; d++) + add_section_rename (d->uncompressed_name, d->compressed_name, + (flagword) -1); + break; + case decompress: + for (d = dwarf_debug_sections; d->uncompressed_name; d++) + add_section_rename (d->compressed_name, d->uncompressed_name, + (flagword) -1); + break; + default: + break; + } + + copy_file (input_filename, tmpname, input_target, output_target, input_arch); + if (status == 0) + { + if (preserve_dates) + set_times (tmpname, &statbuf); + if (tmpname != output_filename) + status = (smart_rename (tmpname, input_filename, + preserve_dates) != 0); + } + 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; +} |