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;
+
/* 150 isn't special; it's just an arbitrary non-ASCII char value. */
enum command_line_switch
{
OPTION_READONLY_TEXT,
OPTION_WRITABLE_TEXT,
OPTION_PURE,
- OPTION_IMPURE
+ OPTION_IMPURE,
+ OPTION_EXTRACT_SYMBOL
};
/* Options to handle if running as "strip". */
{"debugging", no_argument, 0, OPTION_DEBUGGING},
{"discard-all", no_argument, 0, 'x'},
{"discard-locals", no_argument, 0, 'X'},
+ {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
{"format", required_argument, 0, 'F'}, /* Obsolete */
{"gap-fill", required_argument, 0, OPTION_GAP_FILL},
{"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
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\
bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
bfd_get_filename (obfd), bfd_get_target (obfd));
- if (set_start_set)
- start = set_start;
+ if (extract_symbol)
+ start = 0;
else
- start = bfd_get_start_address (ibfd);
- start += change_start;
+ {
+ 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. */
}
}
+ /* 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
size = bfd_section_size (ibfd, isection);
if (copy_byte >= 0)
size = (size + interleave - 1) / interleave;
+ else if (extract_symbol)
+ size = 0;
if (! bfd_set_section_size (obfd, osection, size))
{
err = _("size");
else
vma += change_section_address;
- if (! bfd_set_section_vma (obfd, osection, vma))
+ if (! bfd_set_section_vma (obfd, osection, extract_symbol ? 0 : vma))
{
err = _("vma");
goto loser;
else
lma += change_section_address;
- osection->lma = lma;
+ osection->lma = extract_symbol ? 0 : lma;
/* FIXME: This is probably not enough. If we change the LMA we
may have to recompute the header for the file as well. */
bfd_get_section_by_name since some formats allow multiple
sections with the same name. */
isection->output_section = osection;
- isection->output_offset = 0;
+ isection->output_offset = extract_symbol ? vma : 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;
/* Allow the BFD backend to copy any private data it understands
from the input section to the output section. */
free (relpp);
}
+ if (extract_symbol)
+ return;
+
if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
&& bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
{
bfd_flags_to_set &= ~D_PAGED;
break;
+ case OPTION_EXTRACT_SYMBOL:
+ extract_symbol = TRUE;
+ break;
+
case 0:
/* We've been given a long option. */
break;