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* dwarf.c (display_debug_lines_raw): Include the name of the

Browse Source 
section in warning message.
        (struct debug_display): Enable reloc processing for .debug_line
        and .debug_ranges sections.

        * readelf.c: Add --relocated-dump command line option to dump the
        relocated contents of a specified section.
        (request_dump): New function.
        (parse_args): Use it.
        (dump_section_as_bytes): Add parameter to indicate whether the
        contents should be relocated.
        (target_specific_reloc_handling): Add code for a R_MN10300_16
        reloc found after a R_MN10300_SYM_DIFF reloc.
        (debug_apply_relocations): Rename to apply_relocations.
        (get_section_contents): New function.  Replaces common code found
        in dump_section_as_strings and dump_section_as_bytes.
        * doc/binutils.texi: Document new command line option.
        * NEWS: Mention the new feature.
This commit is contained in:
Nick Clifton
2009-06-24 10:37:35 +00:00
parent ec3f783efd
commit cf13d6995d
5 changed files with 398 additions and 338 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
binutils/ChangeLog
View File

@ -1,3 +1,24 @@
2009-06-23 Nick Clifton <nickc@redhat.com>
* dwarf.c (display_debug_lines_raw): Include the name of the
section in warning message.
(struct debug_display): Enable reloc processing for .debug_line
and .debug_ranges sections.
* readelf.c: Add --relocated-dump command line option to dump the
relocated contents of a specified section.
(request_dump): New function.
(parse_args): Use it.
(dump_section_as_bytes): Add parameter to indicate whether the
contents should be relocated.
(target_specific_reloc_handling): Add code for a R_MN10300_16
reloc found after a R_MN10300_SYM_DIFF reloc.
(debug_apply_relocations): Rename to apply_relocations.
(get_section_contents): New function. Replaces common code found
in dump_section_as_strings and dump_section_as_bytes.
* doc/binutils.texi: Document new command line option.
* NEWS: Mention the new feature.
2009-06-22 Nick Clifton <nickc@redhat.com>
* readelf.c (target_specific_reloc_handling): New function:

3
binutils/NEWS
View File

@ -1,4 +1,7 @@
-*- text -*-
* Readelf can now display the relocated contents of a section as a sequence
of bytes via the --relocated-dump=<name|number> command line option.
* The gprof program has been given a new command line option:
--external-symbols-table=<filename> which reads in symbols from a specified
file.

11
binutils/doc/binutils.texi
View File

@ -3844,6 +3844,7 @@ readelf [@option{-a}|@option{--all}]
[@option{-D}|@option{--use-dynamic}]
[@option{-x} <number or name>|@option{--hex-dump=}<number or name>]
[@option{-p} <number or name>|@option{--string-dump=}<number or name>]
[@option{-R} <number or name>|@option{--relocated-dump=}<number or name>]
[@option{-c}|@option{--archive-index}]
[@option{-w[lLiaprmfFsoR]}|
@option{--debug-dump}[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges]]
@ -3966,10 +3967,18 @@ symbols section.
@item -x <number or name>
@itemx --hex-dump=<number or name>
Displays the contents of the indicated section as a hexadecimal dump.
Displays the contents of the indicated section as a hexadecimal bytes.
A number identifies a particular section by index in the section table;
any other string identifies all sections with that name in the object file.
@item -R <number or name>
@itemx --relocated-dump=<number or name>
Displays the contents of the indicated section as a hexadecimal
bytes. A number identifies a particular section by index in the
section table; any other string identifies all sections with that name
in the object file. The contents of the section will be relocated
before they are displayed.
@item -p <number or name>
@itemx --string-dump=<number or name>
Displays the contents of the indicated section as printable strings.

7
binutils/dwarf.c
View File

@ -2145,7 +2145,8 @@ display_debug_lines_raw (struct dwarf_section *section,
if (info.li_length + initial_length_size > section->size)
{
warn
(_("The line info appears to be corrupt - the section is too small\n"));
(_("The information in section %s appears to be corrupt - the section is too small\n"),
section->name);
return 0;
}
@ -4872,7 +4873,7 @@ struct dwarf_section_display debug_displays[] =
{ { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 },
display_debug_info, &do_debug_info, 1, 0 },
{ { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 },
display_debug_lines, &do_debug_lines, 0, 0 },
display_debug_lines, &do_debug_lines, 1, 0 },
{ { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 },
display_debug_pubnames, &do_debug_pubnames, 0, 0 },
{ { ".eh_frame", "", NULL, NULL, 0, 0 },
@ -4886,7 +4887,7 @@ struct dwarf_section_display debug_displays[] =
{ { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 },
display_debug_pubnames, &do_debug_pubnames, 0, 0 },
{ { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 },
display_debug_ranges, &do_debug_ranges, 0, 0 },
display_debug_ranges, &do_debug_ranges, 1, 0 },
{ { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 },
display_debug_not_supported, NULL, 0, 0 },
{ { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 },

694
binutils/readelf.c
View File

@ -214,6 +214,7 @@ static struct group ** section_headers_groups;
#define DISASS_DUMP (1 << 1) /* The -i command line switch. */
#define DEBUG_DUMP (1 << 2) /* The -w command line switch. */
#define STRING_DUMP (1 << 3) /* The -p command line switch. */
#define RELOC_DUMP (1 << 4) /* The -R command line switch. */
typedef unsigned char dump_type;
@ -2844,11 +2845,12 @@ static struct option options[] =
{"unwind", no_argument, 0, 'u'},
{"archive-index", no_argument, 0, 'c'},
{"hex-dump", required_argument, 0, 'x'},
{"debug-dump", optional_argument, 0, OPTION_DEBUG_DUMP},
{"relocated-dump", required_argument, 0, 'R'},
{"string-dump", required_argument, 0, 'p'},
#ifdef SUPPORT_DISASSEMBLY
{"instruction-dump", required_argument, 0, 'i'},
#endif
{"debug-dump", optional_argument, 0, OPTION_DEBUG_DUMP},
{"version", no_argument, 0, 'v'},
{"wide", no_argument, 0, 'W'},
@ -2885,6 +2887,8 @@ usage (FILE * stream)
Dump the contents of section <number|name> as bytes\n\
-p --string-dump=<number|name>\n\
Dump the contents of section <number|name> as strings\n\
-R --relocated-dump=<number|name>\n\
Dump the contents of section <number|name> as relocated bytes\n\
-w[lLiaprmfFsoR] or\n\
--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=str,=loc,=Ranges]\n\
Display the contents of DWARF2 debug sections\n"));
@ -2961,6 +2965,22 @@ request_dump_byname (const char * section, dump_type type)
dump_sects_byname = new_request;
}
static inline void
request_dump (dump_type type)
{
int section;
char * cp;
do_dump++;
section = strtoul (optarg, & cp, 0);
if (! *cp && section >= 0)
request_dump_bynumber (section, type);
else
request_dump_byname (optarg, type);
}
static void
parse_args (int argc, char ** argv)
{
@ -2970,11 +2990,8 @@ parse_args (int argc, char ** argv)
usage (stderr);
while ((c = getopt_long
(argc, argv, "ADHINSVWacdeghi:lnp:rstuvw::x:", options, NULL)) != EOF)
(argc, argv, "ADHINR:SVWacdeghi:lnp:rstuvw::x:", options, NULL)) != EOF)
{
char * cp;
int section;
switch (c)
{
case 0:
@ -3048,20 +3065,13 @@ parse_args (int argc, char ** argv)
do_archive_index++;
break;
case 'x':
do_dump++;
section = strtoul (optarg, & cp, 0);
if (! *cp && section >= 0)
request_dump_bynumber (section, HEX_DUMP);
else
request_dump_byname (optarg, HEX_DUMP);
request_dump (HEX_DUMP);
break;
case 'p':
do_dump++;
section = strtoul (optarg, & cp, 0);
if (! *cp && section >= 0)
request_dump_bynumber (section, STRING_DUMP);
else
request_dump_byname (optarg, STRING_DUMP);
request_dump (STRING_DUMP);
break;
case 'R':
request_dump (RELOC_DUMP);
break;
case 'w':
do_dump++;
@ -3088,12 +3098,8 @@ parse_args (int argc, char ** argv)
break;
#ifdef SUPPORT_DISASSEMBLY
case 'i':
do_dump++;
section = strtoul (optarg, & cp, 0);
if (! *cp && section >= 0)
request_dump_bynumber (section, DISASS_DUMP);
else
request_dump_byname (optarg, DISASS_DUMP);
request_dump (DISASS_DUMP);
break;
#endif
case 'v':
print_version (program_name);
@ -7759,190 +7765,57 @@ process_syminfo (FILE * file ATTRIBUTE_UNUSED)
return 1;
}
#ifdef SUPPORT_DISASSEMBLY
static int
disassemble_section (Elf_Internal_Shdr * section, FILE * file)
/* Check to see if the given reloc needs to be handled in a target specific
manner. If so then process the reloc and return TRUE otherwise return
FALSE. */
static bfd_boolean
target_specific_reloc_handling (Elf_Internal_Rela * reloc,
unsigned char * start,
Elf_Internal_Sym * symtab)
{
printf (_("\nAssembly dump of section %s\n"),
SECTION_NAME (section));
unsigned int reloc_type = get_reloc_type (reloc->r_info);
/* XXX -- to be done --- XXX */
return 1;
}
#endif
static int
dump_section_as_strings (Elf_Internal_Shdr * section, FILE * file)
{
Elf_Internal_Shdr * relsec;
bfd_size_type num_bytes;
bfd_vma addr;
char * data;
char * end;
char * start;
char * name = SECTION_NAME (section);
bfd_boolean some_strings_shown;
num_bytes = section->sh_size;
if (num_bytes == 0 || section->sh_type == SHT_NOBITS)
switch (elf_header.e_machine)
{
printf (_("\nSection '%s' has no data to dump.\n"), name);
return 0;
case EM_MN10300:
case EM_CYGNUS_MN10300:
{
static Elf_Internal_Sym * saved_sym = NULL;
switch (reloc_type)
{
case 34: /* R_MN10300_ALIGN */
return TRUE;
case 33: /* R_MN10300_SYM_DIFF */
saved_sym = symtab + get_reloc_symindex (reloc->r_info);
return TRUE;
case 1: /* R_MN10300_32 */
case 2: /* R_MN10300_16 */
if (saved_sym != NULL)
{
bfd_vma value;
value = reloc->r_addend
+ (symtab[get_reloc_symindex (reloc->r_info)].st_value
- saved_sym->st_value);
byte_put (start + reloc->r_offset, value, reloc_type == 1 ? 4 : 2);
saved_sym = NULL;
return TRUE;
}
break;
default:
if (saved_sym != NULL)
error (_("Unhandled MN10300 reloc type found after SYM_DIFF reloc"));
break;
}
break;
}
}
addr = section->sh_addr;
start = get_data (NULL, file, section->sh_offset, 1, num_bytes,
_("section data"));
if (!start)
return 0;
printf (_("\nString dump of section '%s':\n"), name);
/* If the section being dumped has relocations against it the user might
be expecting these relocations to have been applied. Check for this
case and issue a warning message in order to avoid confusion.
FIXME: Maybe we ought to have an option that dumps a section with
relocs applied ? */
for (relsec = section_headers;
relsec < section_headers + elf_header.e_shnum;
++relsec)
{
if ((relsec->sh_type != SHT_RELA && relsec->sh_type != SHT_REL)
|| relsec->sh_info >= elf_header.e_shnum
|| section_headers + relsec->sh_info != section
|| relsec->sh_size == 0
|| relsec->sh_link >= elf_header.e_shnum)
continue;
printf (_(" Note: This section has relocations against it, but these have NOT been applied to this dump.\n"));
break;
}
data = start;
end = start + num_bytes;
some_strings_shown = FALSE;
while (data < end)
{
while (!ISPRINT (* data))
if (++ data >= end)
break;
if (data < end)
{
#ifndef __MSVCRT__
printf (" [%6tx] %s\n", data - start, data);
#else
printf (" [%6Ix] %s\n", (size_t) (data - start), data);
#endif
data += strlen (data);
some_strings_shown = TRUE;
}
}
if (! some_strings_shown)
printf (_(" No strings found in this section."));
free (start);
putchar ('\n');
return 1;
}
static int
dump_section_as_bytes (Elf_Internal_Shdr * section, FILE * file)
{
Elf_Internal_Shdr * relsec;
bfd_size_type bytes;
bfd_vma addr;
unsigned char * data;
unsigned char * start;
bytes = section->sh_size;
if (bytes == 0 || section->sh_type == SHT_NOBITS)
{
printf (_("\nSection '%s' has no data to dump.\n"),
SECTION_NAME (section));
return 0;
}
else
printf (_("\nHex dump of section '%s':\n"), SECTION_NAME (section));
addr = section->sh_addr;
start = get_data (NULL, file, section->sh_offset, 1, bytes,
_("section data"));
if (!start)
return 0;
/* If the section being dumped has relocations against it the user might
be expecting these relocations to have been applied. Check for this
case and issue a warning message in order to avoid confusion.
FIXME: Maybe we ought to have an option that dumps a section with
relocs applied ? */
for (relsec = section_headers;
relsec < section_headers + elf_header.e_shnum;
++relsec)
{
if ((relsec->sh_type != SHT_RELA && relsec->sh_type != SHT_REL)
|| relsec->sh_info >= elf_header.e_shnum
|| section_headers + relsec->sh_info != section
|| relsec->sh_size == 0
|| relsec->sh_link >= elf_header.e_shnum)
continue;
printf (_(" NOTE: This section has relocations against it, but these have NOT been applied to this dump.\n"));
break;
}
data = start;
while (bytes)
{
int j;
int k;
int lbytes;
lbytes = (bytes > 16 ? 16 : bytes);
printf (" 0x%8.8lx ", (unsigned long) addr);
for (j = 0; j < 16; j++)
{
if (j < lbytes)
printf ("%2.2x", data[j]);
else
printf (" ");
if ((j & 3) == 3)
printf (" ");
}
for (j = 0; j < lbytes; j++)
{
k = data[j];
if (k >= ' ' && k < 0x7f)
printf ("%c", k);
else
printf (".");
}
putchar ('\n');
data += lbytes;
addr += lbytes;
bytes -= lbytes;
}
free (start);
putchar ('\n');
return 1;
return FALSE;
}
/* Returns TRUE iff RELOC_TYPE is a 32-bit absolute RELA relocation used in
@ -8130,8 +8003,8 @@ is_32bit_pcrel_reloc (unsigned int reloc_type)
/* Do not abort or issue an error message here. Not all targets use
pc-relative 32-bit relocs in their DWARF debug information and we
have already tested for target coverage in is_32bit_abs_reloc. A
more helpful warning message will be generated by
debug_apply_relocations anyway, so just return. */
more helpful warning message will be generated by apply_relocations
anyway, so just return. */
return FALSE;
}
}
@ -8265,133 +8138,15 @@ is_none_reloc (unsigned int reloc_type)
return FALSE;
}
/* Uncompresses a section that was compressed using zlib, in place.
This is a copy of bfd_uncompress_section_contents, in bfd/compress.c */
static int
uncompress_section_contents (unsigned char ** buffer, dwarf_size_type * size)
{
#ifndef HAVE_ZLIB_H
/* These are just to quiet gcc. */
buffer = 0;
size = 0;
return FALSE;
#else
dwarf_size_type compressed_size = *size;
unsigned char * compressed_buffer = *buffer;
dwarf_size_type uncompressed_size;
unsigned char * uncompressed_buffer;
z_stream strm;
int rc;
dwarf_size_type header_size = 12;
/* Read the zlib header. In this case, it should be "ZLIB" followed
by the uncompressed section size, 8 bytes in big-endian order. */
if (compressed_size < header_size
|| ! streq ((char *) compressed_buffer, "ZLIB"))
return 0;
uncompressed_size = compressed_buffer[4]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[5]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[6]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[7]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[8]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[9]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[10]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[11];
/* It is possible the section consists of several compressed
buffers concatenated together, so we uncompress in a loop. */
strm.zalloc = NULL;
strm.zfree = NULL;
strm.opaque = NULL;
strm.avail_in = compressed_size - header_size;
strm.next_in = (Bytef *) compressed_buffer + header_size;
strm.avail_out = uncompressed_size;
uncompressed_buffer = xmalloc (uncompressed_size);
rc = inflateInit (& strm);
while (strm.avail_in > 0)
{
if (rc != Z_OK)
goto fail;
strm.next_out = ((Bytef *) uncompressed_buffer
+ (uncompressed_size - strm.avail_out));
rc = inflate (&strm, Z_FINISH);
if (rc != Z_STREAM_END)
goto fail;
rc = inflateReset (& strm);
}
rc = inflateEnd (& strm);
if (rc != Z_OK
|| strm.avail_out != 0)
goto fail;
free (compressed_buffer);
*buffer = uncompressed_buffer;
*size = uncompressed_size;
return 1;
fail:
free (uncompressed_buffer);
return 0;
#endif /* HAVE_ZLIB_H */
}
/* Check to see if the given reloc needs to be handled in a target specific
manner. If so then process the reloc and return TRUE otherwise return
FALSE. */
static bfd_boolean
target_specific_reloc_handling (Elf_Internal_Rela * reloc,
unsigned char * start,
Elf_Internal_Sym * symtab)
{
unsigned int reloc_type = get_reloc_type (reloc->r_info);
switch (elf_header.e_machine)
{
case EM_MN10300:
case EM_CYGNUS_MN10300:
{
static Elf_Internal_Sym * saved_sym = NULL;
switch (reloc_type)
{
case 34: /* R_MN10300_ALIGN */
return TRUE;
case 33: /* R_MN10300_SYM_DIFF */
saved_sym = symtab + get_reloc_symindex (reloc->r_info);
return TRUE;
case 1: /* R_MN10300_32 */
if (saved_sym != NULL)
{
bfd_vma value;
value = reloc->r_addend
+ (symtab[get_reloc_symindex (reloc->r_info)].st_value
- saved_sym->st_value);
byte_put (start + reloc->r_offset, value, 4);
saved_sym = NULL;
return TRUE;
}
break;
}
break;
}
}
return FALSE;
}
/* Apply relocations to a debug section. */
/* Apply relocations to a section.
Note: So far support has been added only for those relocations
which can be found in debug sections.
FIXME: Add support for more relocations ? */
static void
debug_apply_relocations (void * file,
Elf_Internal_Shdr * section,
unsigned char * start)
apply_relocations (void * file,
Elf_Internal_Shdr * section,
unsigned char * start)
{
Elf_Internal_Shdr * relsec;
unsigned char * end = start + section->sh_size;
@ -8399,7 +8154,7 @@ debug_apply_relocations (void * file,
if (elf_header.e_type != ET_REL)
return;
/* Find the reloc section associated with the debug section. */
/* Find the reloc section associated with the section. */
for (relsec = section_headers;
relsec < section_headers + elf_header.e_shnum;
++relsec)
@ -8524,6 +8279,274 @@ debug_apply_relocations (void * file,
}
}
#ifdef SUPPORT_DISASSEMBLY
static int
disassemble_section (Elf_Internal_Shdr * section, FILE * file)
{
printf (_("\nAssembly dump of section %s\n"),
SECTION_NAME (section));
/* XXX -- to be done --- XXX */
return 1;
}
#endif
/* Reads in the contents of SECTION from FILE, returning a pointer
to a malloc'ed buffer or NULL if something went wrong. */
static char *
get_section_contents (Elf_Internal_Shdr * section, FILE * file)
{
bfd_size_type num_bytes;
num_bytes = section->sh_size;
if (num_bytes == 0 || section->sh_type == SHT_NOBITS)
{
printf (_("\nSection '%s' has no data to dump.\n"),
SECTION_NAME (section));
return NULL;
}
return get_data (NULL, file, section->sh_offset, 1, num_bytes,
_("section contents"));
}
static void
dump_section_as_strings (Elf_Internal_Shdr * section, FILE * file)
{
Elf_Internal_Shdr * relsec;
bfd_size_type num_bytes;
bfd_vma addr;
char * data;
char * end;
char * start;
char * name = SECTION_NAME (section);
bfd_boolean some_strings_shown;
start = get_section_contents (section, file);
if (start == NULL)
return;
printf (_("\nString dump of section '%s':\n"), name);
/* If the section being dumped has relocations against it the user might
be expecting these relocations to have been applied. Check for this
case and issue a warning message in order to avoid confusion.
FIXME: Maybe we ought to have an option that dumps a section with
relocs applied ? */
for (relsec = section_headers;
relsec < section_headers + elf_header.e_shnum;
++relsec)
{
if ((relsec->sh_type != SHT_RELA && relsec->sh_type != SHT_REL)
|| relsec->sh_info >= elf_header.e_shnum
|| section_headers + relsec->sh_info != section
|| relsec->sh_size == 0
|| relsec->sh_link >= elf_header.e_shnum)
continue;
printf (_(" Note: This section has relocations against it, but these have NOT been applied to this dump.\n"));
break;
}
num_bytes = section->sh_size;
addr = section->sh_addr;
data = start;
end = start + num_bytes;
some_strings_shown = FALSE;
while (data < end)
{
while (!ISPRINT (* data))
if (++ data >= end)
break;
if (data < end)
{
#ifndef __MSVCRT__
printf (" [%6tx] %s\n", data - start, data);
#else
printf (" [%6Ix] %s\n", (size_t) (data - start), data);
#endif
data += strlen (data);
some_strings_shown = TRUE;
}
}
if (! some_strings_shown)
printf (_(" No strings found in this section."));
free (start);
putchar ('\n');
}
static void
dump_section_as_bytes (Elf_Internal_Shdr * section,
FILE * file,
bfd_boolean relocate)
{
Elf_Internal_Shdr * relsec;
bfd_size_type bytes;
bfd_vma addr;
unsigned char * data;
unsigned char * start;
start = (unsigned char *) get_section_contents (section, file);
if (start == NULL)
return;
printf (_("\nHex dump of section '%s':\n"), SECTION_NAME (section));
if (relocate)
{
apply_relocations (file, section, start);
}
else
{
/* If the section being dumped has relocations against it the user might
be expecting these relocations to have been applied. Check for this
case and issue a warning message in order to avoid confusion.
FIXME: Maybe we ought to have an option that dumps a section with
relocs applied ? */
for (relsec = section_headers;
relsec < section_headers + elf_header.e_shnum;
++relsec)
{
if ((relsec->sh_type != SHT_RELA && relsec->sh_type != SHT_REL)
|| relsec->sh_info >= elf_header.e_shnum
|| section_headers + relsec->sh_info != section
|| relsec->sh_size == 0
|| relsec->sh_link >= elf_header.e_shnum)
continue;
printf (_(" NOTE: This section has relocations against it, but these have NOT been applied to this dump.\n"));
break;
}
}
addr = section->sh_addr;
bytes = section->sh_size;
data = start;
while (bytes)
{
int j;
int k;
int lbytes;
lbytes = (bytes > 16 ? 16 : bytes);
printf (" 0x%8.8lx ", (unsigned long) addr);
for (j = 0; j < 16; j++)
{
if (j < lbytes)
printf ("%2.2x", data[j]);
else
printf (" ");
if ((j & 3) == 3)
printf (" ");
}
for (j = 0; j < lbytes; j++)
{
k = data[j];
if (k >= ' ' && k < 0x7f)
printf ("%c", k);
else
printf (".");
}
putchar ('\n');
data += lbytes;
addr += lbytes;
bytes -= lbytes;
}
free (start);
putchar ('\n');
}
/* Uncompresses a section that was compressed using zlib, in place.
This is a copy of bfd_uncompress_section_contents, in bfd/compress.c */
static int
uncompress_section_contents (unsigned char ** buffer, dwarf_size_type * size)
{
#ifndef HAVE_ZLIB_H
/* These are just to quiet gcc. */
buffer = 0;
size = 0;
return FALSE;
#else
dwarf_size_type compressed_size = *size;
unsigned char * compressed_buffer = *buffer;
dwarf_size_type uncompressed_size;
unsigned char * uncompressed_buffer;
z_stream strm;
int rc;
dwarf_size_type header_size = 12;
/* Read the zlib header. In this case, it should be "ZLIB" followed
by the uncompressed section size, 8 bytes in big-endian order. */
if (compressed_size < header_size
|| ! streq ((char *) compressed_buffer, "ZLIB"))
return 0;
uncompressed_size = compressed_buffer[4]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[5]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[6]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[7]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[8]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[9]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[10]; uncompressed_size <<= 8;
uncompressed_size += compressed_buffer[11];
/* It is possible the section consists of several compressed
buffers concatenated together, so we uncompress in a loop. */
strm.zalloc = NULL;
strm.zfree = NULL;
strm.opaque = NULL;
strm.avail_in = compressed_size - header_size;
strm.next_in = (Bytef *) compressed_buffer + header_size;
strm.avail_out = uncompressed_size;
uncompressed_buffer = xmalloc (uncompressed_size);
rc = inflateInit (& strm);
while (strm.avail_in > 0)
{
if (rc != Z_OK)
goto fail;
strm.next_out = ((Bytef *) uncompressed_buffer
+ (uncompressed_size - strm.avail_out));
rc = inflate (&strm, Z_FINISH);
if (rc != Z_STREAM_END)
goto fail;
rc = inflateReset (& strm);
}
rc = inflateEnd (& strm);
if (rc != Z_OK
|| strm.avail_out != 0)
goto fail;
free (compressed_buffer);
*buffer = uncompressed_buffer;
*size = uncompressed_size;
return 1;
fail:
free (uncompressed_buffer);
return 0;
#endif /* HAVE_ZLIB_H */
}
static int
load_specific_debug_section (enum dwarf_section_display_enum debug,
Elf_Internal_Shdr * sec, void * file)
@ -8551,7 +8574,7 @@ load_specific_debug_section (enum dwarf_section_display_enum debug,
return 0;
if (debug_displays [debug].relocate)
debug_apply_relocations (file, sec, section->start);
apply_relocations (file, sec, section->start);
return 1;
}
@ -8700,13 +8723,16 @@ process_section_contents (FILE * file)
disassemble_section (section, file);
#endif
if (dump_sects[i] & HEX_DUMP)
dump_section_as_bytes (section, file);
dump_section_as_bytes (section, file, FALSE);
if (dump_sects[i] & DEBUG_DUMP)
display_debug_section (section, file);
if (dump_sects[i] & RELOC_DUMP)
dump_section_as_bytes (section, file, TRUE);
if (dump_sects[i] & STRING_DUMP)
dump_section_as_strings (section, file);
if (dump_sects[i] & DEBUG_DUMP)
display_debug_section (section, file);
}
/* Check to see if the user requested a