/* objcopy.c -- copy object file from input to output, optionally massaging it.
- Copyright (C) 1991 Free Software Foundation, Inc.
+ Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
This file is part of GNU Binutils.
\f
#include "bfd.h"
#include "sysdep.h"
+#include "progress.h"
#include "bucomm.h"
#include <getopt.h>
-
-static void setup_sections ();
-static void copy_sections ();
-static void mangle_sections ();
+#include "libiberty.h"
+
+static bfd_vma parse_vma PARAMS ((const char *, const char *));
+static flagword parse_flags PARAMS ((const char *));
+static char *make_tempname PARAMS ((char *));
+static struct section_list *find_section_list PARAMS ((const char *, boolean));
+static void setup_section PARAMS ((bfd *, asection *, PTR));
+static void copy_section PARAMS ((bfd *, asection *, PTR));
+static void get_sections PARAMS ((bfd *, asection *, PTR));
+static int compare_section_vma PARAMS ((const PTR, const PTR));
+static void add_strip_symbol PARAMS ((const char *));
+static boolean is_strip_symbol PARAMS ((const char *));
+static boolean is_strip_section PARAMS ((bfd *, asection *));
+static unsigned int filter_symbols
+ PARAMS ((bfd *, asymbol **, asymbol **, long));
+static void mark_symbols_used_in_relocations PARAMS ((bfd *, asection *, PTR));
#define nonfatal(s) {bfd_nonfatal(s); status = 1; return;}
static asymbol **isympp = NULL; /* Input symbols */
static asymbol **osympp = NULL; /* Output symbols that survive stripping */
+
+/* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
+static int copy_byte = -1;
+static int interleave = 4;
+
static boolean verbose; /* Print file and target names. */
-static int status = 0;
+static int status = 0; /* Exit status. */
enum strip_action
{
/* Which local symbols to remove. Overrides strip_all. */
static enum locals_action discard_locals;
+/* Structure used to hold lists of sections and actions to take. */
+
+struct section_list
+{
+ /* Next section to adjust. */
+ struct section_list *next;
+ /* Section name. */
+ const char *name;
+ /* Whether this entry was used. */
+ boolean used;
+ /* Whether to remove this section. */
+ boolean remove;
+ /* Whether to adjust or set VMA. */
+ enum { ignore_vma, adjust_vma, set_vma } adjust;
+ /* Amount to adjust by or set to. */
+ bfd_vma val;
+ /* Whether to set the section flags. */
+ boolean set_flags;
+ /* What to set the section flags to. */
+ flagword flags;
+};
+
+static struct section_list *adjust_sections;
+static boolean sections_removed;
+
+/* Adjustments to the start address. */
+static bfd_vma adjust_start = 0;
+static boolean set_start_set = false;
+static bfd_vma set_start;
+
+/* Adjustments to section VMA's. */
+static bfd_vma adjust_section_vma = 0;
+
+/* Filling gaps between sections. */
+static boolean gap_fill_set = false;
+static bfd_byte gap_fill = 0;
+
+/* Pad to a given address. */
+static boolean pad_to_set = false;
+static bfd_vma pad_to;
+
+/* 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;
+};
+
+static struct section_add *add_sections;
+
/* Options to handle if running as "strip". */
static struct option strip_options[] =
{
- {"strip-all", no_argument, 0, 's'},
- {"strip-debug", no_argument, 0, 'S'},
{"discard-all", no_argument, 0, 'x'},
{"discard-locals", no_argument, 0, 'X'},
+ {"format", required_argument, 0, 'F'}, /* Obsolete */
{"help", no_argument, 0, 'h'},
- {"input-target", required_argument, 0, 'I'},
{"input-format", required_argument, 0, 'I'}, /* Obsolete */
- {"output-target", required_argument, 0, 'O'},
+ {"input-target", required_argument, 0, 'I'},
{"output-format", required_argument, 0, 'O'}, /* Obsolete */
+ {"output-target", required_argument, 0, 'O'},
+ {"remove-section", required_argument, 0, 'R'},
+ {"strip-all", no_argument, 0, 's'},
+ {"strip-debug", no_argument, 0, 'S'},
+ {"strip-symbol", required_argument, 0, 'N'},
{"target", required_argument, 0, 'F'},
- {"format", required_argument, 0, 'F'}, /* Obsolete */
-
- {"version", no_argument, 0, 'V'},
{"verbose", no_argument, 0, 'v'},
+ {"version", no_argument, 0, 'V'},
{0, no_argument, 0, 0}
};
/* Options to handle if running as "objcopy". */
+/* 150 isn't special; it's just an arbitrary non-ASCII char value. */
+
+#define OPTION_ADD_SECTION 150
+#define OPTION_ADJUST_START (OPTION_ADD_SECTION + 1)
+#define OPTION_ADJUST_VMA (OPTION_ADJUST_START + 1)
+#define OPTION_ADJUST_SECTION_VMA (OPTION_ADJUST_VMA + 1)
+#define OPTION_ADJUST_WARNINGS (OPTION_ADJUST_SECTION_VMA + 1)
+#define OPTION_GAP_FILL (OPTION_ADJUST_WARNINGS + 1)
+#define OPTION_NO_ADJUST_WARNINGS (OPTION_GAP_FILL + 1)
+#define OPTION_PAD_TO (OPTION_NO_ADJUST_WARNINGS + 1)
+#define OPTION_SET_SECTION_FLAGS (OPTION_PAD_TO + 1)
+#define OPTION_SET_START (OPTION_SET_SECTION_FLAGS + 1)
+
static struct option copy_options[] =
{
- {"strip-all", no_argument, 0, 'S'},
- {"strip-debug", no_argument, 0, 'g'},
+ {"add-section", required_argument, 0, OPTION_ADD_SECTION},
+ {"adjust-start", required_argument, 0, OPTION_ADJUST_START},
+ {"adjust-vma", required_argument, 0, OPTION_ADJUST_VMA},
+ {"adjust-section-vma", required_argument, 0, OPTION_ADJUST_SECTION_VMA},
+ {"adjust-warnings", no_argument, 0, OPTION_ADJUST_WARNINGS},
+ {"byte", required_argument, 0, 'b'},
{"discard-all", no_argument, 0, 'x'},
{"discard-locals", no_argument, 0, 'X'},
+ {"format", required_argument, 0, 'F'}, /* Obsolete */
+ {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
{"help", no_argument, 0, 'h'},
- {"input-target", required_argument, 0, 'I'},
{"input-format", required_argument, 0, 'I'}, /* Obsolete */
- {"output-target", required_argument, 0, 'O'},
+ {"input-target", required_argument, 0, 'I'},
+ {"interleave", required_argument, 0, 'i'},
+ {"no-adjust-warnings", no_argument, 0, OPTION_NO_ADJUST_WARNINGS},
{"output-format", required_argument, 0, 'O'}, /* Obsolete */
+ {"output-target", required_argument, 0, 'O'},
+ {"pad-to", required_argument, 0, OPTION_PAD_TO},
+ {"remove-section", required_argument, 0, 'R'},
+ {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
+ {"set-start", required_argument, 0, OPTION_SET_START},
+ {"strip-all", no_argument, 0, 'S'},
+ {"strip-debug", no_argument, 0, 'g'},
+ {"strip-symbol", required_argument, 0, 'N'},
{"target", required_argument, 0, 'F'},
- {"format", required_argument, 0, 'F'}, /* Obsolete */
-
- {"version", no_argument, 0, 'V'},
{"verbose", no_argument, 0, 'v'},
+ {"version", no_argument, 0, 'V'},
{0, no_argument, 0, 0}
};
static void
-copy_usage (stream, status)
+copy_usage (stream, exit_status)
FILE *stream;
- int status;
+ int exit_status;
{
fprintf (stream, "\
-Usage: %s [-vVSgxX] [-I bfdname] [-O bfdname] [-F bfdname]\n\
+Usage: %s [-vVSgxX] [-I bfdname] [-O bfdname] [-F bfdname] [-b byte]\n\
+ [-R section] [-i interleave] [--interleave=interleave] [--byte=byte]\n\
[--input-target=bfdname] [--output-target=bfdname] [--target=bfdname]\n\
[--strip-all] [--strip-debug] [--discard-all] [--discard-locals]\n\
- [--verbose] [--version] [--help] in-file [out-file]\n", program_name);
- exit (status);
+ [--remove-section=section] [--gap-fill=val] [--pad-to=address]\n",
+ program_name);
+ fprintf (stream, "\
+ [--set-start=val] [--adjust-start=incr] [--adjust-vma=incr]\n\
+ [--adjust-section-vma=section{=,+,-}val] [--adjust-warnings]\n\
+ [--no-adjust-warnings] [--set-section-flags=section=flags]\n\
+ [--add-section=sectionname=filename]\n\
+ [--strip-symbol symbol] [-N symbol] [--verbose]\n\
+ [--version] [--help]\n\
+ in-file [out-file]\n");
+ list_supported_targets (program_name, stream);
+ exit (exit_status);
}
static void
-strip_usage (stream, status)
+strip_usage (stream, exit_status)
FILE *stream;
- int status;
+ int exit_status;
{
fprintf (stream, "\
-Usage: %s [-vVsSgxX] [-I bfdname] [-O bfdname] [-F bfdname]\n\
+Usage: %s [-vVsSgxX] [-I bfdname] [-O bfdname] [-F bfdname] [-R section]\n\
[--input-target=bfdname] [--output-target=bfdname] [--target=bfdname]\n\
[--strip-all] [--strip-debug] [--discard-all] [--discard-locals]\n\
- [--verbose] [--version] [--help] file...\n",
+ [--strip-symbol symbol] [-N symbol]\n\
+ [--remove-section=section] [--verbose] [--version] [--help] file...\n",
program_name);
- exit (status);
+ list_supported_targets (program_name, stream);
+ exit (exit_status);
}
+/* Parse a string into a VMA, with a fatal error if it can't be
+ parsed. */
+
+static bfd_vma
+parse_vma (s, arg)
+ const char *s;
+ const char *arg;
+{
+ bfd_vma ret;
+ const char *end;
+
+ ret = bfd_scan_vma (s, &end, 0);
+ if (*end != '\0')
+ {
+ fprintf (stderr, "%s: %s: bad number: %s\n", program_name, arg, s);
+ exit (1);
+ }
+ return ret;
+}
+
+/* Parse section flags into a flagword, with a fatal error if the
+ string can't be parsed. */
+
+static flagword
+parse_flags (s)
+ 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;
+ }
+
+#define PARSE_FLAG(fname,fval) if (strncmp (fname, s, len) == 0) ret |= fval;
+ PARSE_FLAG ("alloc", SEC_ALLOC);
+ PARSE_FLAG ("load", SEC_LOAD);
+ PARSE_FLAG ("readonly", SEC_READONLY);
+ PARSE_FLAG ("code", SEC_CODE);
+ PARSE_FLAG ("data", SEC_DATA);
+ PARSE_FLAG ("rom", SEC_ROM);
+#undef PARSE_FLAG
+
+ s = snext;
+ }
+ while (s != NULL);
+
+ return ret;
+}
/* Return the name of a temporary file in the same directory as FILENAME. */
return tmpname;
}
+/* Find and optionally add an entry in the adjust_sections list. */
+
+static struct section_list *
+find_section_list (name, add)
+ const char *name;
+ boolean add;
+{
+ register struct section_list *p;
+
+ for (p = adjust_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->adjust = ignore_vma;
+ p->val = 0;
+ p->set_flags = false;
+ p->flags = 0;
+
+ p->next = adjust_sections;
+ adjust_sections = p;
+
+ return p;
+}
+
+/* Make a list of symbols to explicitly strip out. A linked list is
+ good enough for a small number from the command line, but this will
+ slow things down a lot if many symbols are being deleted. */
+
+struct symlist
+{
+ const char *name;
+ struct symlist *next;
+};
+
+static struct symlist *strip_specific_list = NULL;
+
+static void
+add_strip_symbol (name)
+ const char *name;
+{
+ struct symlist *tmp_list;
+
+ tmp_list = (struct symlist *) xmalloc (sizeof (struct symlist));
+ tmp_list->name = name;
+ tmp_list->next = strip_specific_list;
+ strip_specific_list = tmp_list;
+}
+
+static boolean
+is_strip_symbol (name)
+ const char *name;
+{
+ struct symlist *tmp_list;
+
+ for (tmp_list = strip_specific_list; tmp_list; tmp_list = tmp_list->next)
+ {
+ if (strcmp (name, tmp_list->name) == 0)
+ return true;
+ }
+ return false;
+}
+
+/* See if a section is being removed. */
+
+static boolean
+is_strip_section (abfd, sec)
+ bfd *abfd;
+ asection *sec;
+{
+ struct section_list *p;
+
+ if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0
+ && (strip_symbols == strip_debug
+ || strip_symbols == strip_all
+ || discard_locals == locals_all))
+ return true;
+
+ if (! sections_removed)
+ return false;
+ p = find_section_list (bfd_get_section_name (abfd, sec), false);
+ return p != NULL && p->remove ? true : 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. */
filter_symbols (abfd, osyms, isyms, symcount)
bfd *abfd;
asymbol **osyms, **isyms;
- unsigned long symcount;
+ long symcount;
{
register asymbol **from = isyms, **to = osyms;
- char locals_prefix = bfd_get_symbol_leading_char (abfd) == '_' ? 'L' : '.';
- unsigned int src_count = 0, dst_count = 0;
+ long src_count = 0, dst_count = 0;
for (; src_count < symcount; src_count++)
{
int keep;
if ((flags & BSF_GLOBAL) /* Keep if external. */
- || bfd_get_section (sym) == &bfd_und_section
+ || (flags & BSF_KEEP) /* Keep if used in a relocation. */
+ || bfd_is_und_section (bfd_get_section (sym))
|| bfd_is_com_section (bfd_get_section (sym)))
keep = 1;
else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
else /* Local symbol. */
keep = discard_locals != locals_all
&& (discard_locals != locals_start_L ||
- bfd_asymbol_name (sym)[0] != locals_prefix);
+ ! bfd_is_local_label (abfd, sym));
+
+ if (keep && is_strip_symbol (bfd_asymbol_name (sym)))
+ keep = 0;
+ if (keep && is_strip_section (abfd, bfd_get_section (sym)))
+ keep = 0;
+
if (keep)
to[dst_count++] = sym;
}
return dst_count;
}
+/* Keep only every `copy_byte'th byte in MEMHUNK, which is *SIZE bytes long.
+ Adjust *SIZE. */
+
+void
+filter_bytes (memhunk, size)
+ char *memhunk;
+ bfd_size_type *size;
+{
+ char *from = memhunk + copy_byte, *to = memhunk, *end = memhunk + *size;
+
+ for (; from < end; from += interleave)
+ *to++ = *from;
+ *size /= interleave;
+}
+
/* Copy object file IBFD onto OBFD. */
static void
bfd *ibfd;
bfd *obfd;
{
- unsigned int symcount;
+ bfd_vma start;
+ long symcount;
+ asection **osections = NULL;
+ bfd_size_type *gaps = NULL;
+ bfd_size_type max_gap = 0;
if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
{
bfd_get_filename(ibfd), bfd_get_target(ibfd),
bfd_get_filename(obfd), bfd_get_target(obfd));
- if (!bfd_set_start_address (obfd, bfd_get_start_address (ibfd))
+ if (set_start_set)
+ start = set_start;
+ else
+ start = bfd_get_start_address (ibfd);
+ start += adjust_start;
+
+ if (!bfd_set_start_address (obfd, start)
|| !bfd_set_file_flags (obfd,
(bfd_get_file_flags (ibfd)
& bfd_applicable_file_flags (obfd))))
if (osympp != isympp)
free (osympp);
+ /* 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, (void *) obfd);
+
+ if (add_sections != NULL)
+ {
+ struct section_add *padd;
+ struct section_list *pset;
+
+ for (padd = add_sections; padd != NULL; padd = padd->next)
+ {
+ padd->section = bfd_make_section (obfd, padd->name);
+ if (padd->section == NULL)
+ {
+ fprintf (stderr, "%s: can't create section `%s': %s\n",
+ program_name, padd->name,
+ bfd_errmsg (bfd_get_error ()));
+ status = 1;
+ return;
+ }
+ else
+ {
+ flagword flags;
+
+ if (! bfd_set_section_size (obfd, padd->section, padd->size))
+ nonfatal (bfd_get_filename (obfd));
+
+ pset = find_section_list (padd->name, false);
+ if (pset != NULL)
+ pset->used = true;
+
+ if (pset != NULL && pset->set_flags)
+ flags = pset->flags | SEC_HAS_CONTENTS;
+ else
+ flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
+ if (! bfd_set_section_flags (obfd, padd->section, flags))
+ nonfatal (bfd_get_filename (obfd));
+
+ if (pset != NULL
+ && (pset->adjust == adjust_vma
+ || pset->adjust == set_vma))
+ {
+ if (! bfd_set_section_vma (obfd, padd->section, pset->val))
+ nonfatal (bfd_get_filename (obfd));
+ }
+ }
+ }
+ }
+
+ if (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, (void *) &set);
+
+ qsort (osections, c, sizeof (asection *), compare_section_vma);
+
+ 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_vma (obfd, osections[i]) + size;
+ gap_stop = bfd_section_vma (obfd, osections[i + 1]);
+ if (gap_start < gap_stop)
+ {
+ if (! bfd_set_section_size (obfd, osections[i],
+ size + (gap_stop - gap_start)))
+ {
+ fprintf (stderr, "%s: Can't fill gap after %s: %s\n",
+ program_name,
+ bfd_get_section_name (obfd, osections[i]),
+ bfd_errmsg (bfd_get_error()));
+ 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 vma;
+ bfd_size_type size;
+
+ vma = bfd_section_vma (obfd, osections[c - 1]);
+ size = bfd_section_size (obfd, osections[c - 1]);
+ if (vma + size < pad_to)
+ {
+ if (! bfd_set_section_size (obfd, osections[c - 1],
+ pad_to - vma))
+ {
+ fprintf (stderr, "%s: Can't add padding to %s: %s\n",
+ program_name,
+ bfd_get_section_name (obfd, osections[c - 1]),
+ bfd_errmsg (bfd_get_error ()));
+ status = 1;
+ }
+ else
+ {
+ gaps[c - 1] = pad_to - (vma + size);
+ if (max_gap < pad_to - (vma + size))
+ max_gap = pad_to - (vma + size);
+ }
+ }
+ }
+ }
+
+ /* Symbol filtering must happen after the output sections have
+ been created, but before their contents are set. */
if (strip_symbols == strip_all && discard_locals == locals_undef)
{
osympp = isympp = NULL;
}
else
{
- osympp = isympp = (asymbol **) xmalloc (get_symtab_upper_bound (ibfd));
+ long symsize;
+
+ symsize = bfd_get_symtab_upper_bound (ibfd);
+ if (symsize < 0)
+ {
+ nonfatal (bfd_get_filename (ibfd));
+ }
+
+ osympp = isympp = (asymbol **) xmalloc (symsize);
symcount = bfd_canonicalize_symtab (ibfd, isympp);
+ if (symcount < 0)
+ {
+ nonfatal (bfd_get_filename (ibfd));
+ }
- if (strip_symbols == strip_debug || discard_locals != locals_undef)
+ if (strip_symbols == strip_debug
+ || discard_locals != locals_undef
+ || strip_specific_list
+ || sections_removed)
{
+ /* 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. */
+ bfd_map_over_sections (ibfd,
+ mark_symbols_used_in_relocations,
+ (PTR)isympp);
osympp = (asymbol **) xmalloc (symcount * sizeof (asymbol *));
symcount = filter_symbols (ibfd, osympp, isympp, symcount);
}
bfd_set_symtab (obfd, osympp, symcount);
- /* 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_sections, (void *) obfd);
- bfd_map_over_sections (ibfd, copy_sections, (void *) obfd);
- bfd_map_over_sections (ibfd, mangle_sections, (void *) obfd);
+ /* This has to happen after the symbol table has been set. */
+ bfd_map_over_sections (ibfd, copy_section, (void *) 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,
+ (PTR) padd->contents,
+ (file_ptr) 0,
+ (bfd_size_type) padd->size))
+ nonfatal (bfd_get_filename (obfd));
+ }
+ }
+
+ 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))
+ {
+ nonfatal (bfd_get_filename (obfd));
+ }
+ left -= now;
+ off += now;
+ }
+ }
+ }
+ }
+
+ /* 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))
+ {
+ fprintf (stderr, "%s: %s: error copying private BFD data: %s\n",
+ program_name, bfd_get_filename (obfd),
+ bfd_errmsg (bfd_get_error ()));
+ status = 1;
+ return;
+ }
}
static char *
bfd *obfd;
char *output_target;
{
+ struct name_list
+ {
+ struct name_list *next;
+ char *name;
+ } *list, *l;
bfd **ptr = &obfd->archive_head;
bfd *this_element;
- char *dir = cat ("./#", make_tempname (""), "cd");
+ char *dir = make_tempname (bfd_get_filename (obfd));
/* Make a temp directory to hold the contents. */
- mkdir (dir, 0777);
+ mkdir (dir, 0700);
obfd->has_armap = ibfd->has_armap;
+ list = NULL;
+
this_element = bfd_openr_next_archived_file (ibfd, NULL);
- ibfd->archive_head = this_element;
while (this_element != (bfd *) NULL)
{
/* Create an output file for this member. */
char *output_name = cat (dir, "/", bfd_get_filename(this_element));
bfd *output_bfd = bfd_openw (output_name, output_target);
+ bfd *last_element;
+
+ l = (struct name_list *) xmalloc (sizeof (struct name_list));
+ l->name = output_name;
+ l->next = list;
+ list = l;
if (output_bfd == (bfd *) NULL)
{
}
bfd_close (output_bfd);
- /* Open the newly output file and attatch to our list. */
+
+ /* Open the newly output file and attach to our list. */
output_bfd = bfd_openr (output_name, output_target);
- /* Mark it for deletion. */
*ptr = output_bfd;
ptr = &output_bfd->next;
- this_element->next = bfd_openr_next_archived_file (ibfd, this_element);
- this_element = this_element->next;
+
+ last_element = this_element;
+
+ this_element = bfd_openr_next_archived_file (ibfd, last_element);
+
+ bfd_close (last_element);
}
*ptr = (bfd *) NULL;
nonfatal (bfd_get_filename (obfd));
}
- /* Delete all the files that we opened.
- Construct their names again, unfortunately, but
- we're about to exit anyway. */
- for (this_element = ibfd->archive_head;
- this_element != (bfd *) NULL;
- this_element = this_element->next)
- {
- unlink (cat (dir, "/", bfd_get_filename (this_element)));
- }
+ /* Delete all the files that we opened. */
+ for (l = list; l != NULL; l = l->next)
+ unlink (l->name);
rmdir (dir);
+
if (!bfd_close (ibfd))
{
nonfatal (bfd_get_filename (ibfd));
char *output_target;
{
bfd *ibfd;
+ char **matching;
/* To allow us to do "strip *" without dying on the first
non-object file, failures are nonfatal. */
nonfatal (input_filename);
}
- if (bfd_check_format (ibfd, bfd_object))
+ if (bfd_check_format (ibfd, bfd_archive))
{
- bfd *obfd = bfd_openw (output_filename, 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);
+
+ obfd = bfd_openw (output_filename, output_target);
+ if (obfd == NULL)
+ {
+ nonfatal (output_filename);
+ }
+ copy_archive (ibfd, obfd, output_target);
+ }
+ else if (bfd_check_format_matches (ibfd, bfd_object, &matching))
+ {
+ 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);
+
+ obfd = bfd_openw (output_filename, output_target);
if (obfd == NULL)
{
nonfatal (output_filename);
nonfatal (input_filename);
}
}
- else if (bfd_check_format (ibfd, bfd_archive))
+ else
{
- bfd *obfd = bfd_openw (output_filename, output_target);
- if (obfd == NULL)
+ bfd_nonfatal (input_filename);
+ if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
{
- nonfatal (output_filename);
+ list_matching_formats (matching);
+ free (matching);
}
- copy_archive (ibfd, obfd, output_target);
- }
- else
- {
- /* Get the right error message. */
- bfd_check_format (ibfd, bfd_object);
- nonfatal (input_filename);
+ status = 1;
}
}
as ISECTION in IBFD. */
static void
-setup_sections (ibfd, isection, obfd)
+setup_section (ibfd, isection, obfdarg)
bfd *ibfd;
sec_ptr isection;
- bfd *obfd;
+ PTR obfdarg;
{
+ bfd *obfd = (bfd *) obfdarg;
+ struct section_list *p;
sec_ptr osection;
+ bfd_vma vma;
+ flagword flags;
char *err;
if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0
|| discard_locals == locals_all))
return;
- osection = bfd_get_section_by_name (obfd, bfd_section_name (ibfd, isection));
+ p = find_section_list (bfd_section_name (ibfd, isection), false);
+ if (p != NULL)
+ p->used = true;
+
+ if (p != NULL && p->remove)
+ return;
+
+ osection = bfd_make_section_anyway (obfd, bfd_section_name (ibfd, isection));
if (osection == NULL)
{
- osection = bfd_make_section (obfd, bfd_section_name (ibfd, isection));
- if (osection == NULL)
- {
- err = "making";
- goto loser;
- }
+ err = "making";
+ goto loser;
}
if (!bfd_set_section_size (obfd,
goto loser;
}
- if (bfd_set_section_vma (obfd,
- osection,
- bfd_section_vma (ibfd, isection))
- == false)
+ vma = bfd_section_vma (ibfd, isection);
+ if (p != NULL && p->adjust == adjust_vma)
+ vma += p->val;
+ else if (p != NULL && p->adjust == set_vma)
+ vma = p->val;
+ else
+ vma += adjust_section_vma;
+ if (! bfd_set_section_vma (obfd, osection, vma))
{
err = "vma";
goto loser;
goto loser;
}
- if (!bfd_set_section_flags (obfd, osection,
- bfd_get_section_flags (ibfd, isection)))
+ flags = bfd_get_section_flags (ibfd, isection);
+ if (p != NULL && p->set_flags)
+ flags = p->flags | (flags & SEC_HAS_CONTENTS);
+ if (!bfd_set_section_flags (obfd, osection, flags))
{
err = "flags";
goto loser;
}
+ /* 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;
+
+ /* 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 = "private data";
+ goto loser;
+ }
+
/* All went well */
return;
fprintf (stderr, "%s: %s: section `%s': error in %s: %s\n",
program_name,
bfd_get_filename (ibfd), bfd_section_name (ibfd, isection),
- err, bfd_errmsg (bfd_error));
+ err, bfd_errmsg (bfd_get_error ()));
status = 1;
}
If stripping then don't copy any relocation info. */
static void
-copy_sections (ibfd, isection, obfd)
+copy_section (ibfd, isection, obfdarg)
bfd *ibfd;
sec_ptr isection;
- bfd *obfd;
+ PTR obfdarg;
{
+ bfd *obfd = (bfd *) obfdarg;
+ struct section_list *p;
arelent **relpp;
- int relcount;
+ long relcount;
sec_ptr osection;
bfd_size_type size;
return;
}
- osection = bfd_get_section_by_name (obfd,
- bfd_section_name (ibfd, isection));
+ p = find_section_list (bfd_section_name (ibfd, isection), false);
+
+ if (p != NULL && p->remove)
+ return;
+ osection = isection->output_section;
size = bfd_get_section_size_before_reloc (isection);
- if (size == 0)
+ if (size == 0 || osection == 0)
return;
- if (strip_symbols == strip_all
- || bfd_get_reloc_upper_bound (ibfd, isection) == 0)
- {
- bfd_set_reloc (obfd, osection, (arelent **) NULL, 0);
- }
+ if (strip_symbols == strip_all)
+ bfd_set_reloc (obfd, osection, (arelent **) NULL, 0);
else
{
- relpp = (arelent **) xmalloc (bfd_get_reloc_upper_bound (ibfd, isection));
- relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
- bfd_set_reloc (obfd, osection, relpp, relcount);
+ long relsize;
+
+ relsize = bfd_get_reloc_upper_bound (ibfd, isection);
+ if (relsize < 0)
+ {
+ nonfatal (bfd_get_filename (ibfd));
+ }
+ if (relsize == 0)
+ bfd_set_reloc (obfd, osection, (arelent **) NULL, 0);
+ else
+ {
+ relpp = (arelent **) xmalloc (relsize);
+ relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
+ if (relcount < 0)
+ {
+ nonfatal (bfd_get_filename (ibfd));
+ }
+ bfd_set_reloc (obfd, osection, relpp, relcount);
+ }
}
isection->_cooked_size = isection->_raw_size;
nonfatal (bfd_get_filename (ibfd));
}
+ if (copy_byte >= 0)
+ {
+ filter_bytes (memhunk, &size);
+ /* The section has gotten smaller. */
+ if (!bfd_set_section_size (obfd, osection, size))
+ nonfatal (bfd_get_filename (obfd));
+ }
+
if (!bfd_set_section_contents (obfd, osection, memhunk, (file_ptr) 0,
size))
{
}
}
-/* All the symbols have been read in and point to their owning input section.
- They have been relocated so that they are all relative to the base of
- their owning section. On the way out, all the symbols will be relocated to
- their new location in the output file, through some complex sums. */
+/* Get all the sections. This is used when --gap-fill or --pad-to is
+ used. */
static void
-mangle_sections (ibfd, p, obfd)
- bfd *ibfd;
- asection *p;
+get_sections (obfd, osection, secppparg)
bfd *obfd;
+ asection *osection;
+ PTR 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_vma (arg1, arg2)
+ const PTR arg1;
+ const PTR arg2;
{
- p->output_section = bfd_get_section_by_name (obfd, p->name);
- p->output_offset = 0;
+ const asection **sec1 = (const asection **) arg1;
+ const asection **sec2 = (const asection **) 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 VMA. */
+ if ((*sec1)->vma > (*sec2)->vma)
+ return 1;
+ else if ((*sec1)->vma < (*sec2)->vma)
+ return -1;
+
+ /* Sort sections with the same VMA by size. */
+ if ((*sec1)->_raw_size > (*sec2)->_raw_size)
+ return 1;
+ else if ((*sec1)->_raw_size < (*sec2)->_raw_size)
+ 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 (ibfd, isection, symbolsarg)
+ bfd *ibfd;
+ sec_ptr isection;
+ PTR 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)
+ bfd_fatal (bfd_get_filename (ibfd));
+
+ 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);
}
/* The number of bytes to copy at once. */
char *input_target = NULL, *output_target = NULL;
boolean show_version = false;
int c, i;
+ struct section_list *p;
- while ((c = getopt_long (argc, argv, "I:O:F:sSgxXVv",
+ while ((c = getopt_long (argc, argv, "I:O:F:R:sSgxXVvN:",
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 'g':
strip_symbols = strip_debug;
break;
+ case 'N':
+ add_strip_symbol (optarg);
+ break;
case 'x':
discard_locals = locals_all;
break;
}
/* Default is to strip all symbols. */
- if (strip_symbols == strip_undef && discard_locals == locals_undef)
+ if (strip_symbols == strip_undef
+ && discard_locals == locals_undef
+ && strip_specific_list == NULL)
strip_symbols = strip_all;
if (output_target == (char *) NULL)
int argc;
char *argv[];
{
- char *input_filename, *output_filename;
+ char *input_filename = NULL, *output_filename = NULL;
char *input_target = NULL, *output_target = NULL;
boolean show_version = false;
+ boolean adjust_warn = true;
int c;
+ struct section_list *p;
- while ((c = getopt_long (argc, argv, "I:s:O:d:F:b:SgxXVv",
+ while ((c = getopt_long (argc, argv, "b:i:I:s:O:d:F:R:SgxXVvN:",
copy_options, (int *) 0)) != EOF)
{
switch (c)
{
+ case 'b':
+ copy_byte = atoi(optarg);
+ if (copy_byte < 0)
+ {
+ fprintf (stderr, "%s: byte number must be non-negative\n",
+ program_name);
+ exit (1);
+ }
+ break;
+ case 'i':
+ interleave = atoi(optarg);
+ if (interleave < 1)
+ {
+ fprintf(stderr, "%s: interleave must be positive\n",
+ program_name);
+ exit (1);
+ }
+ 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':
- case 'b': /* "both" - 'F' is preferred */
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 'g':
strip_symbols = strip_debug;
break;
+ case 'N':
+ add_strip_symbol (optarg);
+ break;
case 'x':
discard_locals = locals_all;
break;
case 'V':
show_version = true;
break;
+ case OPTION_ADD_SECTION:
+ {
+ const char *s;
+ struct stat st;
+ struct section_add *pa;
+ int len;
+ char *name;
+ FILE *f;
+
+ s = strchr (optarg, '=');
+ if (s == NULL)
+ {
+ fprintf (stderr,
+ "%s: bad format for --add-section NAME=FILENAME\n",
+ program_name);
+ exit (1);
+ }
+
+ if (stat (s + 1, &st) < 0)
+ {
+ fprintf (stderr, "%s: ", program_name);
+ perror (s + 1);
+ exit (1);
+ }
+
+ pa = (struct section_add *) xmalloc (sizeof (struct section_add));
+
+ len = s - optarg;
+ name = (char *) xmalloc (len + 1);
+ strncpy (name, optarg, len);
+ name[len] = '\0';
+ pa->name = name;
+
+ pa->filename = s + 1;
+
+ pa->size = st.st_size;
+
+ pa->contents = xmalloc (pa->size);
+ f = fopen (pa->filename, FOPEN_RB);
+ if (f == NULL)
+ {
+ fprintf (stderr, "%s: ", program_name);
+ perror (pa->filename);
+ exit (1);
+ }
+ if (fread (pa->contents, 1, pa->size, f) == 0
+ || ferror (f))
+ {
+ fprintf (stderr, "%s: %s: fread failed\n",
+ program_name, pa->filename);
+ exit (1);
+ }
+ fclose (f);
+
+ pa->next = add_sections;
+ add_sections = pa;
+ }
+ break;
+ case OPTION_ADJUST_START:
+ adjust_start = parse_vma (optarg, "--adjust-start");
+ break;
+ case OPTION_ADJUST_SECTION_VMA:
+ {
+ const char *s;
+ int len;
+ char *name;
+
+ s = strchr (optarg, '=');
+ if (s == NULL)
+ {
+ s = strchr (optarg, '+');
+ if (s == NULL)
+ {
+ s = strchr (optarg, '-');
+ if (s == NULL)
+ {
+ fprintf (stderr,
+ "%s: bad format for --adjust-section-vma\n",
+ program_name);
+ exit (1);
+ }
+ }
+ }
+
+ len = s - optarg;
+ name = (char *) xmalloc (len + 1);
+ strncpy (name, optarg, len);
+ name[len] = '\0';
+
+ p = find_section_list (name, true);
+
+ p->val = parse_vma (s + 1, "--adjust-section-vma");
+
+ if (*s == '=')
+ p->adjust = set_vma;
+ else
+ {
+ p->adjust = adjust_vma;
+ if (*s == '-')
+ p->val = - p->val;
+ }
+ }
+ break;
+ case OPTION_ADJUST_VMA:
+ adjust_section_vma = parse_vma (optarg, "--adjust-vma");
+ adjust_start = adjust_section_vma;
+ break;
+ case OPTION_ADJUST_WARNINGS:
+ adjust_warn = true;
+ break;
+ case OPTION_GAP_FILL:
+ {
+ bfd_vma gap_fill_vma;
+
+ gap_fill_vma = parse_vma (optarg, "--gap-fill");
+ gap_fill = (bfd_byte) gap_fill_vma;
+ if ((bfd_vma) gap_fill != gap_fill_vma)
+ {
+ fprintf (stderr, "%s: warning: truncating gap-fill from 0x",
+ program_name);
+ fprintf_vma (stderr, gap_fill_vma);
+ fprintf (stderr, "to 0x%x\n", (unsigned int) gap_fill);
+ }
+ gap_fill_set = true;
+ }
+ break;
+ case OPTION_NO_ADJUST_WARNINGS:
+ adjust_warn = false;
+ break;
+ case OPTION_PAD_TO:
+ pad_to = parse_vma (optarg, "--pad-to");
+ pad_to_set = true;
+ break;
+ case OPTION_SET_SECTION_FLAGS:
+ {
+ const char *s;
+ int len;
+ char *name;
+
+ s = strchr (optarg, '=');
+ if (s == NULL)
+ {
+ fprintf (stderr, "%s: bad format for --set-section-flags\n",
+ program_name);
+ exit (1);
+ }
+
+ 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_SET_START:
+ set_start = parse_vma (optarg, "--set-start");
+ set_start_set = true;
+ break;
case 0:
break; /* we've been given a long option */
case 'h':
exit (0);
}
+ if (copy_byte >= interleave)
+ {
+ fprintf (stderr, "%s: byte number must be less than interleave\n",
+ program_name);
+ exit (1);
+ }
+
if (optind == argc || optind + 2 < argc)
copy_usage (stderr, 1);
copy_file (input_filename, output_filename, input_target, output_target);
}
+ if (adjust_warn)
+ {
+ for (p = adjust_sections; p != NULL; p = p->next)
+ {
+ if (! p->used && p->adjust != ignore_vma)
+ {
+ fprintf (stderr, "%s: warning: --adjust-section-vma %s%c0x",
+ program_name, p->name,
+ p->adjust == set_vma ? '=' : '+');
+ fprintf_vma (stderr, p->val);
+ fprintf (stderr, " never used\n");
+ }
+ }
+ }
+
return 0;
}
char *argv[];
{
program_name = argv[0];
+ xmalloc_set_program_name (program_name);
+
+ START_PROGRESS (program_name, 0);
+
strip_symbols = strip_undef;
discard_locals = locals_undef;
if (is_strip < 0)
{
int i = strlen (program_name);
- is_strip = (i >= 5 && strcmp (program_name + i - 5, "strip"));
+ is_strip = (i >= 5 && strcmp (program_name + i - 5, "strip") == 0);
}
if (is_strip)
else
copy_main (argc, argv);
+ END_PROGRESS (program_name);
+
return status;
}
projects / deliverable / binutils-gdb.git / blobdiff