/* 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
+ 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of GNU Binutils.
#include "budbg.h"
#include "filenames.h"
#include "fnmatch.h"
+#include "elf-bfd.h"
#include <sys/stat.h>
/* A list of symbols to explicitly strip out, or to keep. A linked
/* Use alternate machine code? */
static int 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
{
/* Whether to remove the leading character from global symbol names. */
static bfd_boolean remove_leading_char = FALSE;
-/* Whether to permit wildcard in symbol comparasion. */
+/* Whether to permit wildcard in symbol comparison. */
static bfd_boolean wildcard = FALSE;
/* List of symbols to strip, keep, localize, keep-global, weaken,
OPTION_PREFIX_ALLOC_SECTIONS,
OPTION_FORMATS_INFO,
OPTION_ADD_GNU_DEBUGLINK,
- OPTION_ONLY_KEEP_DEBUG
+ OPTION_ONLY_KEEP_DEBUG,
+ OPTION_READONLY_TEXT,
+ OPTION_WRITABLE_TEXT,
+ OPTION_PURE,
+ OPTION_IMPURE
};
/* Options to handle if running as "strip". */
{"format", required_argument, 0, 'F'}, /* Obsolete */
{"gap-fill", required_argument, 0, OPTION_GAP_FILL},
{"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'},
{"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},
{"weaken-symbol", required_argument, 0, 'W'},
{"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
{"wildcard", no_argument, 0, 'w'},
+ {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT},
{0, no_argument, 0, 0}
};
/* 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 *);
-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\
+ --only-keep-debug Strip everything but the debug information\n\
-K --keep-symbol <name> Only copy symbol <name>\n\
-L --localize-symbol <name> Force symbol <name> to be marked as a local\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 comparasion\n\
+ -w --wildcard Permit wildcard in symbol comparison\n\
-x --discard-all Remove all non-global symbols\n\
-X --discard-locals Remove any compiler-generated symbols\n\
-i --interleave <number> Only copy one out of every <number> bytes\n\
--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 alternate machine code for output\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\
-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> Only copy symbol <name>\n\
- -w --wildcard Permit wildcard in symbol comparasion\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\
return FALSE;
}
- return strip_symbols == STRIP_NONDEBUG ? TRUE : FALSE;
+ return FALSE;
}
/* Choose which symbol entries to copy; put the result in OSYMS.
keep = (strip_symbols != STRIP_DEBUG
&& strip_symbols != STRIP_UNNEEDED
&& ! convert_debugging);
- else if (bfd_get_section (sym)->comdat)
+ 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 = 1;
free (buf);
}
-/* Keep only every `copy_byte'th byte in MEMHUNK, which is *SIZE bytes long.
- Adjust *SIZE. */
-
-static void
-filter_bytes (char *memhunk, bfd_size_type *size)
-{
- char *from = memhunk + copy_byte, *to = memhunk, *end = memhunk + *size;
-
- for (; from < end; from += interleave)
- *to++ = *from;
+/* Copy object file IBFD onto OBFD.
+ Returns TRUE upon success, FALSE otherwise. */
- if (*size % interleave > (bfd_size_type) copy_byte)
- *size = (*size / interleave) + 1;
- else
- *size /= interleave;
-}
-
-/* Copy object file IBFD onto OBFD. */
-
-static void
+static bfd_boolean
copy_object (bfd *ibfd, bfd *obfd)
{
bfd_vma start;
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)"));
- return;
- }
+ fatal (_("Unable to change endianness of input file(s)"));
if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ return FALSE;
+ }
if (verbose)
printf (_("copy from %s(%s) to %s(%s)\n"),
need to be set for a core file. */
if (bfd_get_format (obfd) != bfd_core)
{
+ flagword flags;
+
+ flags = bfd_get_file_flags (ibfd);
+ flags |= bfd_flags_to_set;
+ flags &= ~bfd_flags_to_clear;
+ flags &= bfd_applicable_file_flags (obfd);
+
if (!bfd_set_start_address (obfd, start)
- || !bfd_set_file_flags (obfd,
- (bfd_get_file_flags (ibfd)
- & bfd_applicable_file_flags (obfd))))
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ || !bfd_set_file_flags (obfd, flags))
+ {
+ bfd_nonfatal (bfd_get_filename (ibfd));
+ return FALSE;
+ }
}
/* Copy architecture of input file to output file. */
non_fatal (_("Warning: Output file cannot represent architecture %s"),
bfd_printable_arch_mach (bfd_get_arch (ibfd),
bfd_get_mach (ibfd)));
- status = 1;
- return;
+ return FALSE;
}
}
if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ {
+ bfd_nonfatal (bfd_get_filename (ibfd));
+ return FALSE;
+ }
if (isympp)
free (isympp);
any output is done. Thus, we traverse all sections multiple times. */
bfd_map_over_sections (ibfd, setup_section, obfd);
+ setup_bfd_headers (ibfd, obfd);
+
if (add_sections != NULL)
{
struct section_add *padd;
{
non_fatal (_("can't create section `%s': %s"),
padd->name, bfd_errmsg (bfd_get_error ()));
- status = 1;
- return;
+ return FALSE;
}
if (! bfd_set_section_size (obfd, padd->section, padd->size))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ return FALSE;
+ }
pset = find_section_list (padd->name, FALSE);
if (pset != NULL)
flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
if (! bfd_set_section_flags (obfd, padd->section, flags))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ return FALSE;
+ }
if (pset != NULL)
{
if (pset->change_vma != CHANGE_IGNORE)
if (! bfd_set_section_vma (obfd, padd->section,
pset->vma_val))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ 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)))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ return FALSE;
+ }
}
}
}
(obfd, gnu_debuglink_filename);
if (gnu_debuglink_section == NULL)
- RETURN_NONFATAL (gnu_debuglink_filename);
+ {
+ bfd_nonfatal (gnu_debuglink_filename);
+ return FALSE;
+ }
+ }
+
+ if (bfd_count_sections (obfd) == 0)
+ {
+ non_fatal (_("there are no sections to be copied!"));
+ return FALSE;
}
if (gap_fill_set || pad_to_set)
dhandle = NULL;
symsize = bfd_get_symtab_upper_bound (ibfd);
if (symsize < 0)
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ {
+ bfd_nonfatal (bfd_get_filename (ibfd));
+ return FALSE;
+ }
osympp = isympp = xmalloc (symsize);
symcount = bfd_canonicalize_symtab (ibfd, isympp);
if (symcount < 0)
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ {
+ bfd_nonfatal (bfd_get_filename (ibfd));
+ return FALSE;
+ }
if (convert_debugging)
dhandle = read_debugging_info (ibfd, isympp, symcount);
if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
{
status = 1;
- return;
+ return FALSE;
}
}
{
if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
0, padd->size))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ return FALSE;
+ }
}
}
{
if (! bfd_fill_in_gnu_debuglink_section
(obfd, gnu_debuglink_section, gnu_debuglink_filename))
- RETURN_NONFATAL (gnu_debuglink_filename);
+ {
+ bfd_nonfatal (gnu_debuglink_filename);
+ return FALSE;
+ }
}
if (gap_fill_set || pad_to_set)
if (! bfd_set_section_contents (obfd, osections[i], buf,
off, now))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ bfd_nonfatal (bfd_get_filename (obfd));
+ return FALSE;
+ }
left -= now;
off += now;
non_fatal (_("%s: error copying private BFD data: %s"),
bfd_get_filename (obfd),
bfd_errmsg (bfd_get_error ()));
- status = 1;
- return;
+ 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 (_("unknown alternate machine code, ignored"));
- }
+ if (use_alt_mach_code != 0
+ && ! bfd_alt_mach_code (obfd, use_alt_mach_code))
+ non_fatal (_("unknown alternate machine code, ignored"));
+
+ return TRUE;
}
#undef MKDIR
bfd *last_element;
struct stat buf;
int stat_status = 0;
+ bfd_boolean delete = TRUE;
/* Create an output file for this member. */
output_name = concat (dir, "/",
RETURN_NONFATAL (output_name);
if (bfd_check_format (this_element, bfd_object))
- copy_object (this_element, output_bfd);
+ delete = ! copy_object (this_element, output_bfd);
if (!bfd_close (output_bfd))
{
status = 1;
}
- if (preserve_dates && stat_status == 0)
- set_times (output_name, &buf);
+ if (delete)
+ {
+ unlink (output_name);
+ status = 1;
+ }
+ else
+ {
+ if (preserve_dates && stat_status == 0)
+ set_times (output_name, &buf);
- /* Open the newly output file and attach to our list. */
- output_bfd = bfd_openr (output_name, output_target);
+ /* Open the newly output file and attach to our list. */
+ output_bfd = bfd_openr (output_name, output_target);
- l->obfd = output_bfd;
+ l->obfd = output_bfd;
- *ptr = output_bfd;
- ptr = &output_bfd->next;
+ *ptr = output_bfd;
+ ptr = &output_bfd->next;
- last_element = this_element;
+ last_element = this_element;
- this_element = bfd_openr_next_archived_file (ibfd, last_element);
+ this_element = bfd_openr_next_archived_file (ibfd, last_element);
- bfd_close (last_element);
+ bfd_close (last_element);
+ }
}
*ptr = NULL;
else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
{
bfd *obfd;
+ bfd_boolean delete;
do_copy:
+
/* bfd_get_target does not return the correct value until
bfd_check_format succeeds. */
if (output_target == NULL)
if (obfd == NULL)
RETURN_NONFATAL (output_filename);
- copy_object (ibfd, obfd);
+ delete = ! copy_object (ibfd, obfd);
if (!bfd_close (obfd))
RETURN_NONFATAL (output_filename);
if (!bfd_close (ibfd))
RETURN_NONFATAL (input_filename);
+
+ if (delete)
+ {
+ unlink (output_filename);
+ status = 1;
+ }
}
else
{
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)
+{
+ const char *err;
+
+ /* 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))
+ {
+ err = _("private header data");
+ goto loser;
+ }
+
+ /* All went well. */
+ return;
+
+loser:
+ non_fatal (_("%s: error in %s: %s"),
+ bfd_get_filename (ibfd),
+ err, bfd_errmsg (bfd_get_error ()));
+ status = 1;
+}
+
/* Create a section in OBFD with the same
name and attributes as ISECTION in IBFD. */
if (p != NULL && p->set_flags)
flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
+ else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
+ {
+ flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
+ if (obfd->xvec->flavour == bfd_target_elf_flavour)
+ elf_section_type (osection) = SHT_NOBITS;
+ }
+
if (!bfd_set_section_flags (obfd, osection, flags))
{
err = _("flags");
return;
osection = isection->output_section;
- size = bfd_get_section_size_before_reloc (isection);
+ size = bfd_get_section_size (isection);
if (size == 0 || osection == 0)
return;
}
bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount);
+ if (relcount == 0)
+ free (relpp);
}
- isection->_cooked_size = isection->_raw_size;
- isection->reloc_done = TRUE;
-
if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
&& bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
{
RETURN_NONFATAL (bfd_get_filename (ibfd));
if (copy_byte >= 0)
- filter_bytes (memhunk, &size);
+ {
+ /* Keep only every `copy_byte'th byte in MEMHUNK. */
+ char *from = (char *) memhunk + copy_byte;
+ char *to = memhunk;
+ char *end = (char *) memhunk + size;
+
+ for (; from < end; from += interleave)
+ *to++ = *from;
+
+ size = (size + interleave - 1 - copy_byte) / interleave;
+ osection->lma /= interleave;
+ }
if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
RETURN_NONFATAL (bfd_get_filename (obfd));
return -1;
/* Sort sections with the same LMA by size. */
- if ((*sec1)->_raw_size > (*sec2)->_raw_size)
+ if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2))
return 1;
- else if ((*sec1)->_raw_size < (*sec2)->_raw_size)
+ else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2))
return -1;
return 0;
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 0:
/* We've been given a long option. */
break;
projects / deliverable / binutils-gdb.git / blobdiff