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Add SHF_COMPRESSED support to gas and objcopy 

This patch adds --compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}
options to gas and objcopy for ELF files. They control how DWARF debug
sections are compressed.  --compress-debug-sections=none is equivalent to
--nocompress-debug-sections.  --compress-debug-sections=zlib and
--compress-debug-sections=zlib-gnu are equivalent to
--compress-debug-sections.  --compress-debug-sections=zlib-gabi compresses
DWARF debug sections with SHF_COMPRESSED from the ELF ABI.  No linker
changes are required to support SHF_COMPRESSED.

bfd/

	* archive.c (_bfd_get_elt_at_filepos): Also copy BFD_COMPRESS_GABI
	bit.
	* bfd.c (bfd::flags): Increase size to 18 bits.
	(BFD_COMPRESS_GABI): New.
	(BFD_FLAGS_SAVED): Add BFD_COMPRESS_GABI.
	(BFD_FLAGS_FOR_BFD_USE_MASK): Likewise.
	(bfd_update_compression_header): New fuction.
	(bfd_check_compression_header): Likewise.
	(bfd_get_compression_header_size): Likewise.
	(bfd_is_section_compressed_with_header): Likewise.
	* compress.c (MAX_COMPRESSION_HEADER_SIZE): New.
	(bfd_compress_section_contents): Return the uncompressed size if
	the full section contents is compressed successfully.  Support
	converting from/to .zdebug* sections.
	(bfd_get_full_section_contents): Call
	bfd_get_compression_header_size to get compression header size.
	(bfd_is_section_compressed): Renamed to ...
	(bfd_is_section_compressed_with_header): This.  Add a pointer
	argument to return compression header size.
	(bfd_is_section_compressed): Use it.
	(bfd_init_section_decompress_status): Call
	bfd_get_compression_header_size to get compression header size.
	Return FALSE if uncompressed section size is 0.
	* elf.c (_bfd_elf_make_section_from_shdr): Support converting
	from/to .zdebug* sections.
	* bfd-in2.h: Regenerated.

binutils/

	* objcopy.c (do_debug_sections): Add compress_zlib,
	compress_gnu_zlib and compress_gabi_zlib.
	(copy_options): Use optional_argument on compress-debug-sections.
	(copy_usage): Update --compress-debug-sections.
	(copy_file): Handle compress_zlib, compress_gnu_zlib and
	compress_gabi_zlib.
	(copy_main): Handle
	--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
	* doc/binutils.texi: Document
	--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.

binutils/testsuite/

	* compress.exp: Add tests for
	--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
	* binutils-all/dw2-3.rS: New file.
	* binutils-all/dw2-3.rt: Likewise.
	* binutils-all/libdw2-compressedgabi.out: Likewise.

gas/

	* as.c (show_usage): Update --compress-debug-sections.
	(std_longopts): Use optional_argument on compress-debug-sections.
	(parse_args): Handle
	--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
	* as.h (compressed_debug_section_type): New.
	(flag_compress_debug): Change type to compressed_debug_section_type.
	--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
	* write.c (compress_debug): Set BFD_COMPRESS_GABI for
	--compress-debug-sections=zlib-gabi.  Call
	bfd_get_compression_header_size to get compression header size.
	Don't rename section name for --compress-debug-sections=zlib-gabi.
	* config/tc-i386.c (compressed_debug_section_type): Set to
	COMPRESS_DEBUG_ZLIB.
	* doc/as.texinfo: Document
	--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.

gas/testsuite/

	* gas/i386/dw2-compressed-1.d: New file.
	* gas/i386/dw2-compressed-2.d: Likewise.
	* gas/i386/dw2-compressed-3.d: Likewise.
	* gas/i386/x86-64-dw2-compressed-2.d: Likewise.
	* gas/i386/i386.exp: Run dw2-compressed-2, dw2-compressed-1,
	dw2-compressed-3 and x86-64-dw2-compressed-2.

ld/testsuite/

	* ld-elf/compress.exp: Add a test for
	--compress-debug-sections=zlib-gabi.
	(build_tests): Add 2 tests for --compress-debug-sections=zlib-gabi.
	(run_tests): Likewise.
	Verify linker output with zlib-gabi compressed debug input.
	* ld-elf/compressed1a.d: New file.
	* ld-elf/compressed1b.d: Likewise.
	* ld-elf/compressed1c.d: Likewise.
This commit is contained in:
H.J. Lu 2015-04-08 07:53:54 -07:00
parent bfcf0ccd01
commit 151411f8af
31 changed files with 1300 additions and 128 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
bfd/ChangeLog
View File

@ -1,3 +1,32 @@
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* archive.c (_bfd_get_elt_at_filepos): Also copy BFD_COMPRESS_GABI
bit.
* bfd.c (bfd::flags): Increase size to 18 bits.
(BFD_COMPRESS_GABI): New.
(BFD_FLAGS_SAVED): Add BFD_COMPRESS_GABI.
(BFD_FLAGS_FOR_BFD_USE_MASK): Likewise.
(bfd_update_compression_header): New fuction.
(bfd_check_compression_header): Likewise.
(bfd_get_compression_header_size): Likewise.
(bfd_is_section_compressed_with_header): Likewise.
* compress.c (MAX_COMPRESSION_HEADER_SIZE): New.
(bfd_compress_section_contents): Return the uncompressed size if
the full section contents is compressed successfully. Support
converting from/to .zdebug* sections.
(bfd_get_full_section_contents): Call
bfd_get_compression_header_size to get compression header size.
(bfd_is_section_compressed): Renamed to ...
(bfd_is_section_compressed_with_header): This. Add a pointer
argument to return compression header size.
(bfd_is_section_compressed): Use it.
(bfd_init_section_decompress_status): Call
bfd_get_compression_header_size to get compression header size.
Return FALSE if uncompressed section size is 0.
* elf.c (_bfd_elf_make_section_from_shdr): Support converting
from/to .zdebug* sections.
* bfd-in2.h: Regenerated.
2015-04-07 Alan Modra <amodra@gmail.com>
* elf.c (_bfd_elf_get_reloc_section): Allow for .got.plt being

6
bfd/archive.c
View File

@ -725,8 +725,10 @@ _bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
n_bfd->arelt_data = new_areldata;
/* Copy BFD_COMPRESS and BFD_DECOMPRESS flags. */
n_bfd->flags |= archive->flags & (BFD_COMPRESS | BFD_DECOMPRESS);
/* Copy BFD_COMPRESS, BFD_DECOMPRESS and BFD_COMPRESS_GABI flags. */
n_bfd->flags |= archive->flags & (BFD_COMPRESS
| BFD_DECOMPRESS
| BFD_COMPRESS_GABI);
if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_bfd))
return n_bfd;

24
bfd/bfd-in2.h
View File

@ -6323,7 +6323,7 @@ struct bfd
ENUM_BITFIELD (bfd_direction) direction : 2;
/* Format_specific flags. */
flagword flags : 17;
flagword flags : 18;
/* Values that may appear in the flags field of a BFD. These also
appear in the object_flags field of the bfd_target structure, where
@ -6400,14 +6400,19 @@ struct bfd
/* BFD is a dummy, for plugins. */
#define BFD_PLUGIN 0x10000
/* Compress sections in this BFD with SHF_COMPRESSED from gABI. */
#define BFD_COMPRESS_GABI 0x20000
/* Flags bits to be saved in bfd_preserve_save. */
#define BFD_FLAGS_SAVED \
(BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN)
(BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN \
| BFD_COMPRESS_GABI)
/* Flags bits which are for BFD use only. */
#define BFD_FLAGS_FOR_BFD_USE_MASK \
(BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
| BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT)
| BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \
| BFD_COMPRESS_GABI)
/* Is the file descriptor being cached? That is, can it be closed as
needed, and re-opened when accessed later? */
@ -6777,6 +6782,15 @@ void bfd_emul_set_commonpagesize (const char *, bfd_vma);
char *bfd_demangle (bfd *, const char *, int);
void bfd_update_compression_header
(bfd *abfd, bfd_byte *contents, asection *sec);
bfd_boolean bfd_check_compression_header
(bfd *abfd, bfd_byte *contents, asection *sec,
bfd_size_type uncompressed_size);
int bfd_get_compression_header_size (bfd *abfd, asection *sec);
/* Extracted from archive.c. */
symindex bfd_get_next_mapent
(bfd *abfd, symindex previous, carsym **sym);
@ -7289,6 +7303,10 @@ bfd_boolean bfd_get_full_section_contents
void bfd_cache_section_contents
(asection *sec, void *contents);
bfd_boolean bfd_is_section_compressed_with_header
(bfd *abfd, asection *section,
int *compression_header_size_p);
bfd_boolean bfd_is_section_compressed
(bfd *abfd, asection *section);

153
bfd/bfd.c
View File

@ -85,7 +85,7 @@ CODE_FRAGMENT
. ENUM_BITFIELD (bfd_direction) direction : 2;
.
. {* Format_specific flags. *}
. flagword flags : 17;
. flagword flags : 18;
.
. {* Values that may appear in the flags field of a BFD. These also
. appear in the object_flags field of the bfd_target structure, where
@ -162,14 +162,19 @@ CODE_FRAGMENT
. {* BFD is a dummy, for plugins. *}
.#define BFD_PLUGIN 0x10000
.
. {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *}
.#define BFD_COMPRESS_GABI 0x20000
.
. {* Flags bits to be saved in bfd_preserve_save. *}
.#define BFD_FLAGS_SAVED \
. (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN)
. (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN \
. | BFD_COMPRESS_GABI)
.
. {* Flags bits which are for BFD use only. *}
.#define BFD_FLAGS_FOR_BFD_USE_MASK \
. (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
. | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT)
. | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \
. | BFD_COMPRESS_GABI)
.
. {* Is the file descriptor being cached? That is, can it be closed as
. needed, and re-opened when accessed later? *}
@ -1940,3 +1945,145 @@ bfd_demangle (bfd *abfd, const char *name, int options)
return res;
}
/*
FUNCTION
bfd_update_compression_header
SYNOPSIS
void bfd_update_compression_header
(bfd *abfd, bfd_byte *contents, asection *sec);
DESCRIPTION
Set the compression header at CONTENTS of SEC in ABFD and update
elf_section_flags for compression.
*/
void
bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
asection *sec)
{
if ((abfd->flags & BFD_COMPRESS) != 0)
{
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
{
if ((abfd->flags & BFD_COMPRESS_GABI) != 0)
{
const struct elf_backend_data *bed
= get_elf_backend_data (abfd);
/* Set the SHF_COMPRESSED bit. */
elf_section_flags (sec) |= SHF_COMPRESSED;
if (bed->s->elfclass == ELFCLASS32)
{
Elf32_External_Chdr *echdr
= (Elf32_External_Chdr *) contents;
bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
bfd_put_32 (abfd, sec->size, &echdr->ch_size);
bfd_put_32 (abfd, 1 << sec->alignment_power,
&echdr->ch_addralign);
}
else
{
Elf64_External_Chdr *echdr
= (Elf64_External_Chdr *) contents;
bfd_put_64 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type);
bfd_put_64 (abfd, sec->size, &echdr->ch_size);
bfd_put_64 (abfd, 1 << sec->alignment_power,
&echdr->ch_addralign);
}
}
else
/* Clear the SHF_COMPRESSED bit. */
elf_section_flags (sec) &= ~SHF_COMPRESSED;
}
}
else
abort ();
}
/*
FUNCTION
bfd_check_compression_header
SYNOPSIS
bfd_boolean bfd_check_compression_header
(bfd *abfd, bfd_byte *contents, asection *sec,
bfd_size_type uncompressed_size);
DESCRIPTION
Check the compression header at CONTENTS of SEC in ABFD with
the uncompressed size UNCOMPRESSED_SIZE.
RETURNS
Return TRUE if the compression header is valid.
*/
bfd_boolean
bfd_check_compression_header (bfd *abfd, bfd_byte *contents,
asection *sec,
bfd_size_type uncompressed_size)
{
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& (elf_section_flags (sec) & SHF_COMPRESSED) != 0)
{
Elf_Internal_Chdr chdr;
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
if (bed->s->elfclass == ELFCLASS32)
{
Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents;
chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type);
chdr.ch_size = bfd_get_32 (abfd, &echdr->ch_size);
chdr.ch_addralign = bfd_get_32 (abfd, &echdr->ch_addralign);
}
else
{
Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents;
chdr.ch_type = bfd_get_64 (abfd, &echdr->ch_type);
chdr.ch_size = bfd_get_64 (abfd, &echdr->ch_size);
chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign);
}
return (chdr.ch_type == ELFCOMPRESS_ZLIB
&& chdr.ch_size == uncompressed_size
&& chdr.ch_addralign == 1U << sec->alignment_power);
}
return FALSE;
}
/*
FUNCTION
bfd_get_compression_header_size
SYNOPSIS
int bfd_get_compression_header_size (bfd *abfd, asection *sec);
DESCRIPTION
Return the size of the compression header of SEC in ABFD.
RETURNS
Return the size of the compression header in bytes.
*/
int
bfd_get_compression_header_size (bfd *abfd, asection *sec)
{
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
{
if (sec == NULL)
{
if (!(abfd->flags & BFD_COMPRESS_GABI))
return 0;
}
else if (!(elf_section_flags (sec) & SHF_COMPRESSED))
return 0;
if (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS32)
return sizeof (Elf32_External_Chdr);
else
return sizeof (Elf64_External_Chdr);
}
return 0;
}

281
bfd/compress.c
View File

@ -24,6 +24,8 @@
#include "libbfd.h"
#include "safe-ctype.h"
#define MAX_COMPRESSION_HEADER_SIZE 24
static bfd_boolean
decompress_contents (bfd_byte *compressed_buffer,
bfd_size_type compressed_size,
@ -65,55 +67,136 @@ decompress_contents (bfd_byte *compressed_buffer,
field was allocated using bfd_malloc() or equivalent. If zlib
is not installed on this machine, the input is unmodified.
Return @code{TRUE} if the full section contents is compressed
successfully. */
Return the uncompressed size if the full section contents is
compressed successfully. Otherwise return 0. */
static bfd_boolean
bfd_compress_section_contents (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
static bfd_size_type
bfd_compress_section_contents (bfd *abfd, sec_ptr sec,
bfd_byte *uncompressed_buffer,
bfd_size_type uncompressed_size)
{
uLong compressed_size;
bfd_byte *compressed_buffer;
bfd_byte *buffer;
bfd_size_type buffer_size;
bfd_boolean decompress;
int zlib_size;
int orig_compression_header_size;
int compression_header_size
= bfd_get_compression_header_size (abfd, NULL);
bfd_boolean compressed
= bfd_is_section_compressed_with_header (abfd, sec,
&orig_compression_header_size);
compressed_size = compressBound (uncompressed_size) + 12;
compressed_buffer = (bfd_byte *) bfd_malloc (compressed_size);
if (compressed_buffer == NULL)
return FALSE;
if (compress ((Bytef*) compressed_buffer + 12,
&compressed_size,
(const Bytef*) uncompressed_buffer,
uncompressed_size) != Z_OK)
if (compressed)
{
free (compressed_buffer);
bfd_set_error (bfd_error_bad_value);
return FALSE;
/* We shouldn't decompress unsupported compressed section. */
if (orig_compression_header_size < 0)
abort ();
/* Different compression schemes. Just move the compressed section
contents to the right position. */
if (orig_compression_header_size == 0)
{
/* Convert it from .zdebug* section. Get the uncompressed
size first. */
zlib_size = uncompressed_size;
compressed_size = zlib_size + compression_header_size;
uncompressed_size = bfd_getb64 (uncompressed_buffer + 4);
}
else
{
/* Convert it to .zdebug* section. */
zlib_size = uncompressed_size - orig_compression_header_size;
compressed_size = zlib_size;
}
}
else
compressed_size = compressBound (uncompressed_size) + 12;
compressed_size += 12;
/* PR binutils/18087: If compression didn't make the section smaller,
just keep it uncompressed. */
if (compressed_size < uncompressed_size)
/* When converting from .zdebug* section, uncompress if it leads to
smaller size. */
if (compressed
&& orig_compression_header_size == 0
&& compressed_size > uncompressed_size)
{
/* Write the zlib header. In this case, it should be "ZLIB" followed
by the uncompressed section size, 8 bytes in big-endian order. */
memcpy (compressed_buffer, "ZLIB", 4);
bfd_putb64 (uncompressed_size, compressed_buffer + 4);
free (uncompressed_buffer);
sec->contents = compressed_buffer;
sec->size = compressed_size;
sec->compress_status = COMPRESS_SECTION_DONE;
decompress = TRUE;
buffer_size = uncompressed_size;
}
else
{
sec->contents = uncompressed_buffer;
sec->compress_status = COMPRESS_SECTION_NONE;
decompress = FALSE;
buffer_size = compressed_size + compression_header_size;
}
buffer = (bfd_byte *) bfd_malloc (buffer_size);
if (buffer == NULL)
return 0;
if (compressed)
{
sec->size = uncompressed_size;
if (decompress)
{
if (!decompress_contents (uncompressed_buffer, zlib_size,
buffer, uncompressed_size))
{
bfd_set_error (bfd_error_bad_value);
free (buffer);
return 0;
}
free (uncompressed_buffer);
sec->contents = buffer;
sec->compress_status = COMPRESS_SECTION_DONE;
return uncompressed_size;
}
else
{
bfd_update_compression_header (abfd, buffer, sec);
memmove (buffer + compression_header_size,
uncompressed_buffer + orig_compression_header_size,
zlib_size);
}
}
else
{
bfd_size_type size = uncompressed_size;
int header_size = 12 + compression_header_size;
if (compress ((Bytef*) buffer + header_size,
&compressed_size,
(const Bytef*) uncompressed_buffer,
uncompressed_size) != Z_OK)
{
free (buffer);
bfd_set_error (bfd_error_bad_value);
return 0;
}
compressed_size += header_size;
/* PR binutils/18087: If compression didn't make the section smaller,
just keep it uncompressed. */
if (compressed_size < uncompressed_size)
{
bfd_update_compression_header (abfd, buffer, sec);
/* Write the zlib header. In this case, it should be "ZLIB"
followed by the uncompressed section size, 8 bytes in
big-endian order. */
memcpy (buffer + compression_header_size, "ZLIB", 4);
bfd_putb64 (size, buffer + compression_header_size + 4);
}
else
{
sec->contents = uncompressed_buffer;
sec->compress_status = COMPRESS_SECTION_NONE;
return uncompressed_size;
}
}
return TRUE;
free (uncompressed_buffer);
sec->contents = buffer;
sec->size = compressed_size;
sec->compress_status = COMPRESS_SECTION_DONE;
return uncompressed_size;
}
/*
@ -143,6 +226,7 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
bfd_size_type save_size;
bfd_size_type save_rawsize;
bfd_byte *compressed_buffer;
unsigned int compression_header_size;
if (abfd->direction != write_direction && sec->rawsize != 0)
sz = sec->rawsize;
@ -200,7 +284,9 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
if (p == NULL)
goto fail_compressed;
if (!decompress_contents (compressed_buffer, sec->compressed_size, p, sz))
compression_header_size = bfd_get_compression_header_size (abfd, sec);
if (!decompress_contents (compressed_buffer + compression_header_size,
sec->compressed_size, p, sz))
{
bfd_set_error (bfd_error_bad_value);
if (p != *ptr)
@ -256,6 +342,72 @@ bfd_cache_section_contents (asection *sec, void *contents)
sec->flags |= SEC_IN_MEMORY;
}
/*
FUNCTION
bfd_is_section_compressed_with_header
SYNOPSIS
bfd_boolean bfd_is_section_compressed_with_header
(bfd *abfd, asection *section,
int *compression_header_size_p);
DESCRIPTION
Return @code{TRUE} if @var{section} is compressed. Compression
header size is returned in @var{compression_header_size_p}. If
compression is unsupported, compression header size is returned
with -1.
*/
bfd_boolean
bfd_is_section_compressed_with_header (bfd *abfd, sec_ptr sec,
int *compression_header_size_p)
{
bfd_byte header[MAX_COMPRESSION_HEADER_SIZE + 12];
int compression_header_size;
int header_size = 12;
unsigned int saved = sec->compress_status;
bfd_boolean compressed;
compression_header_size = bfd_get_compression_header_size (abfd, sec);
if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE)
abort ();
header_size += compression_header_size;
/* Don't decompress the section. */
sec->compress_status = COMPRESS_SECTION_NONE;
/* Read the zlib header. In this case, it should be "ZLIB" followed
by the uncompressed section size, 8 bytes in big-endian order. */
compressed = bfd_get_section_contents (abfd, sec, header, 0,
header_size)
&& CONST_STRNEQ ((char*) header + compression_header_size,
"ZLIB");
if (compressed)
{
if (compression_header_size != 0)
{
bfd_size_type uncompressed_size
= bfd_getb64 ((bfd_byte *) header
+ compression_header_size + 4);
if (!bfd_check_compression_header (abfd, header, sec,
uncompressed_size))
compression_header_size = -1;
}
/* Check for the pathalogical case of a debug string section that
contains the string ZLIB.... as the first entry. We assume that
no uncompressed .debug_str section would ever be big enough to
have the first byte of its (big-endian) size be non-zero. */
else if (strcmp (sec->name, ".debug_str") == 0
&& ISPRINT (header[compression_header_size + 4]))
compressed = FALSE;
}
/* Restore compress_status. */
sec->compress_status = saved;
*compression_header_size_p = compression_header_size;
return compressed;
}
/*
FUNCTION
@ -272,30 +424,10 @@ DESCRIPTION
bfd_boolean
bfd_is_section_compressed (bfd *abfd, sec_ptr sec)
{
bfd_byte compressed_buffer [12];
unsigned int saved = sec->compress_status;
bfd_boolean compressed;
/* Don't decompress the section. */
sec->compress_status = COMPRESS_SECTION_NONE;
/* Read the zlib header. In this case, it should be "ZLIB" followed
by the uncompressed section size, 8 bytes in big-endian order. */
compressed = (bfd_get_section_contents (abfd, sec, compressed_buffer, 0, 12)
&& CONST_STRNEQ ((char*) compressed_buffer, "ZLIB"));
/* Check for the pathalogical case of a debug string section that
contains the string ZLIB.... as the first entry. We assume that
no uncompressed .debug_str section would ever be big enough to
have the first byte of its (big-endian) size be non-zero. */
if (compressed
&& strcmp (sec->name, ".debug_str") == 0
&& ISPRINT (compressed_buffer[4]))
compressed = FALSE;
/* Restore compress_status. */
sec->compress_status = saved;
return compressed;
int compression_header_size;
return (bfd_is_section_compressed_with_header (abfd, sec,
&compression_header_size)
&& compression_header_size >= 0);
}
/*
@ -319,13 +451,20 @@ DESCRIPTION
bfd_boolean
bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec)
{
bfd_byte compressed_buffer [12];
bfd_byte header[MAX_COMPRESSION_HEADER_SIZE + 12];
int compression_header_size;
int header_size = 12;
bfd_size_type uncompressed_size;
compression_header_size = bfd_get_compression_header_size (abfd, sec);
if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE)
abort ();
header_size += compression_header_size;
if (sec->rawsize != 0
|| sec->contents != NULL
|| sec->compress_status != COMPRESS_SECTION_NONE
|| !bfd_get_section_contents (abfd, sec, compressed_buffer, 0, 12))
|| !bfd_get_section_contents (abfd, sec, header, 0, header_size))
{
bfd_set_error (bfd_error_invalid_operation);
return FALSE;
@ -333,13 +472,20 @@ bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec)
/* Read the zlib header. In this case, it should be "ZLIB" followed
by the uncompressed section size, 8 bytes in big-endian order. */
if (! CONST_STRNEQ ((char*) compressed_buffer, "ZLIB"))
if (! CONST_STRNEQ ((char*) header + compression_header_size, "ZLIB"))
{
bfd_set_error (bfd_error_wrong_format);
return FALSE;
}
uncompressed_size = bfd_getb64 (compressed_buffer + 4);
uncompressed_size = bfd_getb64 (header + compression_header_size + 4);
if (compression_header_size != 0
&& !bfd_check_compression_header (abfd, header, sec,
uncompressed_size))
{
bfd_set_error (bfd_error_wrong_format);
return FALSE;
}
sec->compressed_size = sec->size;
sec->size = uncompressed_size;
sec->compress_status = DECOMPRESS_SECTION_SIZED;
@ -389,9 +535,12 @@ bfd_init_section_compress_status (bfd *abfd, sec_ptr sec)
0, uncompressed_size))
ret = FALSE;
else
ret = bfd_compress_section_contents (abfd, sec,
uncompressed_buffer,
uncompressed_size);
{
uncompressed_size = bfd_compress_section_contents (abfd, sec,
uncompressed_buffer,
uncompressed_size);
ret = uncompressed_size != 0;
}
return ret;
}

75
bfd/elf.c
View File

@ -1042,26 +1042,35 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
{
enum { nothing, compress, decompress } action = nothing;
char *new_name;
int compression_header_size;
bfd_boolean compressed
= bfd_is_section_compressed_with_header (abfd, newsect,
&compression_header_size);
if (bfd_is_section_compressed (abfd, newsect))
if (compressed)
{
/* Compressed section. Check if we should decompress. */
if ((abfd->flags & BFD_DECOMPRESS))
action = decompress;
}
else
/* Compress the uncompressed section or convert from/to .zdebug*
section. Check if we should compress. */
if (action == nothing)
{
/* Normal section. Check if we should compress. */
if ((abfd->flags & BFD_COMPRESS) && newsect->size != 0)
if (newsect->size != 0
&& (abfd->flags & BFD_COMPRESS)
&& compression_header_size >= 0
&& (!compressed
|| ((compression_header_size > 0)
!= ((abfd->flags & BFD_COMPRESS_GABI) != 0))))
action = compress;
else
return TRUE;
}
new_name = NULL;
switch (action)
if (action == compress)
{
case nothing:
break;
case compress:
if (!bfd_init_section_compress_status (abfd, newsect))
{
(*_bfd_error_handler)
@ -1069,25 +1078,9 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
abfd, name);
return FALSE;
}
/* PR binutils/18087: Compression does not always make a section
smaller. So only rename the section when compression has
actually taken place. */
if (newsect->compress_status == COMPRESS_SECTION_DONE)
{
if (name[1] != 'z')
{
unsigned int len = strlen (name);
new_name = bfd_alloc (abfd, len + 2);
if (new_name == NULL)
return FALSE;
new_name[0] = '.';
new_name[1] = 'z';
memcpy (new_name + 2, name + 1, len);
}
}
break;
case decompress:
}
else
{
if (!bfd_init_section_decompress_status (abfd, newsect))
{
(*_bfd_error_handler)
@ -1095,6 +1088,13 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
abfd, name);
return FALSE;
}
}
new_name = NULL;
if (action == decompress
|| (action == compress
&& (abfd->flags & BFD_COMPRESS_GABI) != 0))
{
if (name[1] == 'z')
{
unsigned int len = strlen (name);
@ -1105,7 +1105,24 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
new_name[0] = '.';
memcpy (new_name + 1, name + 2, len - 1);
}
break;
}
else if (action == compress
&& newsect->compress_status == COMPRESS_SECTION_DONE)
{
/* PR binutils/18087: Compression does not always make a section
smaller. So only rename the section when compression has
actually taken place. */
if (name[1] != 'z')
{
unsigned int len = strlen (name);
new_name = bfd_alloc (abfd, len + 2);
if (new_name == NULL)
return FALSE;
new_name[0] = '.';
new_name[1] = 'z';
memcpy (new_name + 2, name + 1, len);
}
}
if (new_name != NULL)
bfd_rename_section (abfd, newsect, new_name);

13
binutils/ChangeLog
View File

@ -1,3 +1,16 @@
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* objcopy.c (do_debug_sections): Add compress_zlib,
compress_gnu_zlib and compress_gabi_zlib.
(copy_options): Use optional_argument on compress-debug-sections.
(copy_usage): Update --compress-debug-sections.
(copy_file): Handle compress_zlib, compress_gnu_zlib and
compress_gabi_zlib.
(copy_main): Handle
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* doc/binutils.texi: Document
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* objcopy.c (copy_usage): Replace "--interleave [<number>]" with

13
binutils/doc/binutils.texi
View File

@ -1849,6 +1849,19 @@ renamed to begin with @samp{.zdebug} instead of @samp{.debug}. Note -
if compression would actually make a section @emph{larger} then it is
not compressed or renamed.
@item --compress-debug-sections=none
@itemx --compress-debug-sections=zlib
@itemx --compress-debug-sections=zlib-gnu
@itemx --compress-debug-sections=zlib-gabi
For ELF files, these options control how DWARF debug sections are
compressed. @option{--compress-debug-sections=none} is equivalent
to @option{--nocompress-debug-sections}.
@option{--compress-debug-sections=zlib} and
@option{--compress-debug-sections=zlib-gnu} are equivalent to
@option{--compress-debug-sections}.
@option{--compress-debug-sections=zlib-gabi} compresses
DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
@item --decompress-debug-sections
Decompress DWARF debug sections using zlib. The original section
names of the compressed sections are restored.

36
binutils/objcopy.c
View File

@ -204,6 +204,9 @@ static enum
{
nothing,
compress,
compress_zlib,
compress_gnu_zlib,
compress_gabi_zlib,
decompress
} do_debug_sections = nothing;
@ -380,7 +383,7 @@ static struct option copy_options[] =
{"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},
{"compress-debug-sections", optional_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS},
{"debugging", no_argument, 0, OPTION_DEBUGGING},
{"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS},
{"disable-deterministic-archives", no_argument, 0, 'U'},
@ -601,7 +604,8 @@ copy_usage (FILE *stream, int exit_status)
<commit>\n\
--subsystem <name>[:<version>]\n\
Set PE subsystem to <name> [& <version>]\n\
--compress-debug-sections Compress DWARF debug sections using zlib\n\
--compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
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\
@ -2588,7 +2592,18 @@ copy_file (const char *input_filename, const char *output_filename,
switch (do_debug_sections)
{
case compress:
case compress_zlib:
case compress_gnu_zlib:
case compress_gabi_zlib:
ibfd->flags |= BFD_COMPRESS;
if (do_debug_sections != compress)
{
if (ibfd->xvec->flavour != bfd_target_elf_flavour)
fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported for `%s'"),
bfd_get_target (ibfd));
if (do_debug_sections == compress_gabi_zlib)
ibfd->flags |= BFD_COMPRESS_GABI;
}
break;
case decompress:
ibfd->flags |= BFD_DECOMPRESS;
@ -3998,7 +4013,22 @@ copy_main (int argc, char *argv[])
break;
case OPTION_COMPRESS_DEBUG_SECTIONS:
do_debug_sections = compress;
if (optarg)
{
if (strcasecmp (optarg, "none") == 0)
do_debug_sections = decompress;
else if (strcasecmp (optarg, "zlib") == 0)
do_debug_sections = compress_zlib;
else if (strcasecmp (optarg, "zlib-gnu") == 0)
do_debug_sections = compress_gnu_zlib;
else if (strcasecmp (optarg, "zlib-gabi") == 0)
do_debug_sections = compress_gabi_zlib;
else
fatal (_("unrecognized --compress-debug-sections type `%s'"),
optarg);
}
else
do_debug_sections = compress;
break;
case OPTION_DEBUGGING:

8
binutils/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* compress.exp: Add tests for
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* binutils-all/dw2-3.rS: New file.
* binutils-all/dw2-3.rt: Likewise.
* binutils-all/libdw2-compressedgabi.out: Likewise.
2015-04-06 H.J. Lu <hongjiu.lu@intel.com>
* binutils-all/compress.exp: Remove is_zlib_supported check.

354
binutils/testsuite/binutils-all/compress.exp
View File

@ -217,3 +217,357 @@ if ![is_remote host] {
}
run_dump_test "debug_str"
if { ![binutils_assemble_flags $srcdir/$subdir/dw2-1.S ${compressedfile}gabi.o --compress-debug-sections=zlib-gabi] } then {
fail "compressed debug sections with zlib-gabi"
return
}
if { ![binutils_assemble_flags $srcdir/$subdir/dw2-1.S ${compressedfile}gnu.o --compress-debug-sections=zlib-gnu] } then {
fail "compressed debug sections with zlib-gnu"
return
}
set src1 ${compressedfile}gnu.o
set src2 ${compressedfile}.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
fail "compressed debug sections with zlib-gnu"
return
}
if { ![binutils_assemble_flags $srcdir/$subdir/dw2-2.S ${compressedfile2}gabi.o --compress-debug-sections=zlib-gabi] } then {
fail "compressed debug sections with zlib-gabi"
return
}
if { ![binutils_assemble_flags $srcdir/$subdir/dw2-2.S ${compressedfile2}gnu.o --compress-debug-sections=zlib-gnu] } then {
fail "compressed debug sections with zlib-gnu"
return
}
set src1 ${compressedfile2}gnu.o
set src2 ${compressedfile2}.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
fail "compressed debug sections with zlib-gnu"
return
}
if { ![binutils_assemble_flags $srcdir/$subdir/dw2-3.S ${compressedfile3}gabi.o --compress-debug-sections=zlib-gabi] } then {
fail "compressed debug sections with zlib-gabi"
return
}
set testname "readelf -t zlib-gabi compress debug sections"
set got [remote_exec host "$READELF -t --wide ${compressedfile3}gabi.o" "" "/dev/null" "tmpdir/dw2-3.rt"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
fail "$testname (reason: unexpected output)"
send_log "$got\n"
}
if { [regexp_diff tmpdir/dw2-3.rt $srcdir/$subdir/dw2-3.rt] } then {
fail "$testname"
} else {
pass "$testname"
}
set testname "readelf -S zlib-gabi compress debug sections"
set got [remote_exec host "$READELF -S --wide ${compressedfile3}gabi.o" "" "/dev/null" "tmpdir/dw2-3.rS"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
fail "$testname (reason: unexpected output)"
send_log "$got\n"
}
if { [regexp_diff tmpdir/dw2-3.rS $srcdir/$subdir/dw2-3.rS] } then {
fail "$testname"
} else {
pass "$testname"
}
if { ![binutils_assemble_flags $srcdir/$subdir/dw2-3.S ${compressedfile3}gnu.o --compress-debug-sections=zlib-gnu] } then {
fail "compressed debug sections with zlib-gnu"
return
}
set src1 ${compressedfile3}gnu.o
set src2 ${compressedfile3}.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
fail "compressed debug sections with zlib-gnu"
return
}
remote_file host delete ${libfile}gabi.a
set got [binutils_run $AR "rc ${libfile}gabi.a ${compressedfile}gabi.o ${compressedfile2}gabi.o ${compressedfile3}gabi.o"]
if ![string match "" $got] then {
fail "compressed debug sections"
return
}
set testname "objcopy compress debug sections with zlib-gabi"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gabi ${testfile}.o ${copyfile}gabi.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile}gabi.o ${copyfile}gabi.o\n"
verbose "cmp ${compressedfile}gabi.o ${copyfile}gabi.o"
set src1 ${compressedfile}gabi.o
set src2 ${copyfile}gabi.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy decompress compressed debug sections with zlib-gabi"
set got [binutils_run $OBJCOPY "--decompress-debug-sections ${compressedfile}gabi.o ${copyfile}gabi.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${testfile}.o ${copyfile}gabi.o\n"
verbose "cmp ${testfile}.o ${copyfile}gabi.o"
set src1 ${testfile}.o
set src2 ${copyfile}gabi.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy zlib-gnu compress debug sections with zlib-gabi"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gabi ${compressedfile}.o ${copyfile}gabi.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile}gabi.o ${copyfile}gabi.o\n"
verbose "cmp ${compressedfile}gabi.o ${copyfile}gabi.o"
set src1 ${compressedfile}gabi.o
set src2 ${copyfile}gabi.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy zlib-gabi compress debug sections with zlib-gnu"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gnu ${compressedfile}gabi.o ${copyfile}gnu.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile}gnu.o ${copyfile}gnu.o\n"
verbose "cmp ${compressedfile}gnu.o ${copyfile}gnu.o"
set src1 ${compressedfile}gnu.o
set src2 ${copyfile}gnu.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy compress debug sections 3 with zlib-gabi"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gabi ${testfile3}.o ${copyfile}gabi.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile3}gabi.o ${copyfile}gabi.o\n"
verbose "cmp ${compressedfile3}gabi.o ${copyfile}gabi.o"
set src1 ${compressedfile3}gabi.o
set src2 ${copyfile}gabi.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy decompress compressed debug sections 3 with zlib-gabi"
set got [binutils_run $OBJCOPY "--decompress-debug-sections ${compressedfile3}gabi.o ${copyfile}gabi.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${testfile3}.o ${copyfile}gabi.o\n"
verbose "cmp ${testfile3}.o ${copyfile}gabi.o"
set src1 ${testfile3}.o
set src2 ${copyfile}gabi.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy zlib-gnu compress debug sections 3 with zlib-gabi"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gabi ${compressedfile3}.o ${copyfile}gabi.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile3}gabi.o ${copyfile}gabi.o\n"
verbose "cmp ${compressedfile3}gabi.o ${copyfile}gabi.o"
set src1 ${compressedfile3}gabi.o
set src2 ${copyfile}gabi.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy zlib-gabi compress debug sections 3 with zlib-gnu"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gnu ${compressedfile3}gabi.o ${copyfile}gnu.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile3}gnu.o ${copyfile}gnu.o\n"
verbose "cmp ${compressedfile3}gnu.o ${copyfile}gnu.o"
set src1 ${compressedfile3}gnu.o
set src2 ${copyfile}gnu.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy zlib-gnu compress debug sections 3"
set got [binutils_run $OBJCOPY "${compressedfile3}gnu.o ${copyfile}gnu.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile3}gnu.o ${copyfile}gnu.o\n"
verbose "cmp ${compressedfile3}gnu.o ${copyfile}gnu.o"
set src1 ${compressedfile3}gnu.o
set src2 ${copyfile}gnu.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy zlib-gnu compress debug sections 3"
set got [binutils_run $OBJCOPY "${compressedfile3}gnu.o ${copyfile}gnu.o"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
return
}
send_log "cmp ${compressedfile3}gnu.o ${copyfile}gnu.o\n"
verbose "cmp ${compressedfile3}gnu.o ${copyfile}gnu.o"
set src1 ${compressedfile3}gnu.o
set src2 ${copyfile}gnu.o
set status [remote_exec build cmp "${src1} ${src2}"]
set exec_output [lindex $status 1]
set exec_output [prune_warnings $exec_output]
if ![string match "" $exec_output] then {
send_log "$exec_output\n"
verbose "$exec_output" 1
fail "objcopy ($testname)"
} else {
pass "objcopy ($testname)"
}
set testname "objcopy decompress debug sections in archive with zlib-gabi"
set got [binutils_run $OBJCOPY "--decompress-debug-sections ${libfile}gabi.a ${copyfile}gabi.a"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
} else {
set got [remote_exec host "$READELF -S --wide ${copyfile}gabi.a" "" "/dev/null" "tmpdir/libdw2.out"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
fail "$testname (reason: unexpected output)"
send_log $got
send_log "\n"
}
if { [regexp_diff tmpdir/libdw2.out $srcdir/$subdir/libdw2.out] } then {
fail "$testname"
} else {
pass "$testname"
}
}
set testname "objcopy compress debug sections in archive with zlib-gabi"
set got [binutils_run $OBJCOPY "--compress-debug-sections=zlib-gabi ${copyfile}gabi.a ${compressedcopyfile}gabi.a"]
if ![string match "" $got] then {
fail "objcopy ($testname)"
} else {
set got [remote_exec host "$OBJDUMP -s -j .debug_info
${compressedcopyfile}gabi.a" "" "/dev/null" "tmpdir/libdw2-compressedgabi.out"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
fail "$testname (reason: unexpected output)"
send_log $got
send_log "\n"
}
if { [regexp_diff tmpdir/libdw2-compressedgabi.out $srcdir/$subdir/libdw2-compressedgabi.out] } then {
fail "$testname"
} else {
pass "$testname"
}
}
set testname "objdump compress debug sections 3 with zlib-gabi"
set got [remote_exec host "$OBJDUMP -W ${compressedfile3}gabi.o" "" "/dev/null" "objdump.out"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
fail "$testname"
send_log "$got\n"
}
if { [regexp_diff objdump.out $srcdir/$subdir/dw2-3.W] } then {
fail "$testname"
} else {
pass "$testname"
}

3
binutils/testsuite/binutils-all/dw2-3.rS Normal file
View File

@ -0,0 +1,3 @@
#...
+\[[ 0-9]+\] .debug_info +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +C +0 +0 +1
#pass

6
binutils/testsuite/binutils-all/dw2-3.rt Normal file
View File

@ -0,0 +1,6 @@
#...
+\[[ 0-9]+\] .debug_info
+(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ +[0-9a-f]+ +0 +0 +1
+\[0+800\]: COMPRESSED
+ZLIB, 0+9d, 1
#pass

3
binutils/testsuite/binutils-all/libdw2-compressedgabi.out Normal file
View File

@ -0,0 +1,3 @@
#...
.*ZLIB.*
#pass

18
gas/ChangeLog
View File

@ -1,3 +1,21 @@
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* as.c (show_usage): Update --compress-debug-sections.
(std_longopts): Use optional_argument on compress-debug-sections.
(parse_args): Handle
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* as.h (compressed_debug_section_type): New.
(flag_compress_debug): Change type to compressed_debug_section_type.
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* write.c (compress_debug): Set BFD_COMPRESS_GABI for
--compress-debug-sections=zlib-gabi. Call
bfd_get_compression_header_size to get compression header size.
Don't rename section name for --compress-debug-sections=zlib-gabi.
* config/tc-i386.c (compressed_debug_section_type): Set to
COMPRESS_DEBUG_ZLIB.
* doc/as.texinfo: Document
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
2015-04-07 Renlin Li <renlin.li@arm.com>
* config/tc-aarch64.c (mapping_state): Use subseg_text_p.

28
gas/as.c
View File

@ -246,7 +246,7 @@ Options:\n\
fprintf (stream, _("\
--alternate initially turn on alternate macro syntax\n"));
fprintf (stream, _("\
--compress-debug-sections\n\
--compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
compress DWARF debug sections using zlib\n"));
fprintf (stream, _("\
--nocompress-debug-sections\n\
@ -471,7 +471,7 @@ parse_args (int * pargc, char *** pargv)
,{"a", optional_argument, NULL, 'a'}
/* Handle -al=<FILE>. */
,{"al", optional_argument, NULL, OPTION_AL}
,{"compress-debug-sections", no_argument, NULL, OPTION_COMPRESS_DEBUG}
,{"compress-debug-sections", optional_argument, NULL, OPTION_COMPRESS_DEBUG}
,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG}
,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP}
,{"defsym", required_argument, NULL, OPTION_DEFSYM}
@ -655,11 +655,31 @@ This program has absolutely no warranty.\n"));
exit (EXIT_SUCCESS);
case OPTION_COMPRESS_DEBUG:
flag_compress_debug = 1;
if (optarg)
{
#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
if (strcasecmp (optarg, "none") == 0)
flag_compress_debug = COMPRESS_DEBUG_NONE;
else if (strcasecmp (optarg, "zlib") == 0)
flag_compress_debug = COMPRESS_DEBUG_ZLIB;
else if (strcasecmp (optarg, "zlib-gnu") == 0)
flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
else if (strcasecmp (optarg, "zlib-gabi") == 0)
flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
else
as_fatal (_("Invalid --compress-debug-sections option: `%s'"),
optarg);
#else
as_fatal (_("--compress-debug-sections=%s is unsupported"),
optarg);
#endif
}
else
flag_compress_debug = COMPRESS_DEBUG;
break;
case OPTION_NOCOMPRESS_DEBUG:
flag_compress_debug = 0;
flag_compress_debug = COMPRESS_DEBUG_NONE;
break;
case OPTION_DEBUG_PREFIX_MAP:

14
gas/as.h
View File

@ -370,8 +370,18 @@ COMMON int flag_strip_local_absolute;
/* True if we should generate a traditional format object file. */
COMMON int flag_traditional_format;
/* TRUE if debug sections should be compressed. */
COMMON int flag_compress_debug;
/* Types of compressed debug sections. We currently support zlib. */
enum compressed_debug_section_type
{
COMPRESS_DEBUG_NONE = 0,
COMPRESS_DEBUG,
COMPRESS_DEBUG_ZLIB,
COMPRESS_DEBUG_GNU_ZLIB,
COMPRESS_DEBUG_GABI_ZLIB
};
/* Type of compressed debug sections we should generate. */
COMMON enum compressed_debug_section_type flag_compress_debug;
/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
COMMON int flag_execstack;

3
gas/config/tc-i386.c
View File

@ -35,7 +35,8 @@
#ifdef TE_LINUX
/* Default to compress debug sections for Linux. */
int flag_compress_debug = 1;
enum compressed_debug_section_type flag_compress_debug
= COMPRESS_DEBUG_ZLIB;
#endif
#ifndef REGISTER_WARNINGS

16
gas/doc/as.texinfo
View File

@ -630,6 +630,22 @@ to begin with @samp{.zdebug}, and the resulting object file may not be
compatible with older linkers and object file utilities. Note if compression
would make a given section @emph{larger} then it is not compressed or renamed.
@ifset ELF
@cindex @samp{--compress-debug-sections=} option
@item --compress-debug-sections=none
@itemx --compress-debug-sections=zlib
@itemx --compress-debug-sections=zlib-gnu
@itemx --compress-debug-sections=zlib-gabi
These options control how DWARF debug sections are compressed.
@option{--compress-debug-sections=none} is equivalent to
@option{--nocompress-debug-sections}.
@option{--compress-debug-sections=zlib} and
@option{--compress-debug-sections=zlib-gnu} are equivalent to
@option{--compress-debug-sections}.
@option{--compress-debug-sections=zlib-gabi} compresses
DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
@end ifset
@item --nocompress-debug-sections
Do not compress DWARF debug sections. This is the default.

9
gas/testsuite/ChangeLog
View File

@ -1,3 +1,12 @@
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* gas/i386/dw2-compressed-1.d: New file.
* gas/i386/dw2-compressed-2.d: Likewise.
* gas/i386/dw2-compressed-3.d: Likewise.
* gas/i386/x86-64-dw2-compressed-2.d: Likewise.
* gas/i386/i386.exp: Run dw2-compressed-2, dw2-compressed-1,
dw2-compressed-3 and x86-64-dw2-compressed-2.
2015-04-06 H.J. Lu <hongjiu.lu@intel.com>
* lib/gas-defs.exp (run_dump_test): Remove is_zlib_supported check.

105
gas/testsuite/gas/i386/dw2-compressed-1.d Normal file
View File

@ -0,0 +1,105 @@
#source: dw2-compress-1.s
#as: --compress-debug-sections=zlib-gabi
#readelf: -w
#name: DWARF2 debugging information 1 with SHF_COMPRESSED
Contents of the .debug_info section:
Compilation Unit @ offset 0x0:
Length: 0x4e \(32-bit\)
Version: 2
Abbrev Offset: 0x0
Pointer Size: 4
<0><b>: Abbrev Number: 1 \(DW_TAG_compile_unit\)
<c> DW_AT_stmt_list : 0x0
<10> DW_AT_high_pc : 0x4
<14> DW_AT_low_pc : 0x0
<18> DW_AT_name : file1.txt
<22> DW_AT_producer : GNU C 3.3.3
<2e> DW_AT_language : 1 \(ANSI C\)
<1><2f>: Abbrev Number: 2 \(DW_TAG_subprogram\)
<30> DW_AT_external : 1
<31> DW_AT_decl_file : 1
<32> DW_AT_decl_line : 2
<33> DW_AT_name : func_cu1
<3c> DW_AT_type : <0x4a>
<40> DW_AT_low_pc : 0x0
<44> DW_AT_high_pc : 0x4
<48> DW_AT_frame_base : 1 byte block: 55 \(DW_OP_reg5 \([^()]*\)\)
<1><4a>: Abbrev Number: 3 \(DW_TAG_base_type\)
<4b> DW_AT_name : int
<4f> DW_AT_byte_size : 4
<50> DW_AT_encoding : 5 \(signed\)
<1><51>: Abbrev Number: 0
Contents of the .debug_abbrev section:
Number TAG \(0x0\)
1 DW_TAG_compile_unit \[has children\]
DW_AT_stmt_list DW_FORM_data4
DW_AT_high_pc DW_FORM_addr
DW_AT_low_pc DW_FORM_addr
DW_AT_name DW_FORM_string
DW_AT_producer DW_FORM_string
DW_AT_language DW_FORM_data1
DW_AT value: 0 DW_FORM value: 0
2 DW_TAG_subprogram \[no children\]
DW_AT_external DW_FORM_flag
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_name DW_FORM_string
DW_AT_type DW_FORM_ref4
DW_AT_low_pc DW_FORM_addr
DW_AT_high_pc DW_FORM_addr
DW_AT_frame_base DW_FORM_block1
DW_AT value: 0 DW_FORM value: 0
3 DW_TAG_base_type \[no children\]
DW_AT_name DW_FORM_string
DW_AT_byte_size DW_FORM_data1
DW_AT_encoding DW_FORM_data1
DW_AT value: 0 DW_FORM value: 0
Raw dump of debug contents of section .debug_line:
Offset: 0x0
Length: 62
DWARF Version: 2
Prologue Length: 35
Minimum Instruction Length: 1
Initial value of 'is_stmt': 1
Line Base: 1
Line Range: 1
Opcode Base: 16
Opcodes:
Opcode 1 has 0 args
Opcode 2 has 1 args
Opcode 3 has 1 args
Opcode 4 has 1 args
Opcode 5 has 1 args
Opcode 6 has 0 args
Opcode 7 has 0 args
Opcode 8 has 0 args
Opcode 9 has 1 args
Opcode 10 has 0 args
Opcode 11 has 0 args
Opcode 12 has 1 args
Opcode 13 has 0 args
Opcode 14 has 0 args
Opcode 15 has 0 args
The Directory Table is empty.
The File Name Table \(offset 0x.*\):
Entry Dir Time Size Name
1 0 0 0 file1.txt
Line Number Statements:
\[0x.*\] Extended opcode 2: set Address to 0x0
\[0x.*\] Advance Line by 3 to 4
\[0x.*\] Copy
\[0x.*\] Copy
\[0x.*\] Extended opcode 2: set Address to 0x4
\[0x.*\] Extended opcode 1: End of Sequence

7
gas/testsuite/gas/i386/dw2-compressed-2.d Normal file
View File

@ -0,0 +1,7 @@
#source: dw2-compress-2.s
#as: --compress-debug-sections=zlib-gabi
#addr2line: 0x0 0x10 -e
#name: DWARF2 debugging information 2 with SHF_COMPRESSED
./dw2-compress-2.c:12
./dw2-compress-2.c:5

104
gas/testsuite/gas/i386/dw2-compressed-3.d Normal file
View File

@ -0,0 +1,104 @@
#source: dw2-compress-3.s
#as: --compress-debug-sections=zlib-gabi
#readelf: -w
#name: DWARF2 debugging information 3 with SHF_COMPRESSED
Contents of the .debug_info section:
Compilation Unit @ offset 0x0:
Length: 0x32 \(32-bit\)
Version: 4
Abbrev Offset: 0x0
Pointer Size: 4
<0><b>: Abbrev Number: 1 \(DW_TAG_compile_unit\)
<c> DW_AT_producer : \(indirect string, offset: 0x2\): GNU C 4.8.3
<10> DW_AT_language : 1 \(ANSI C\)
<11> DW_AT_name : \(indirect string, offset: 0xe\): dw2-compress-3.c
<15> DW_AT_comp_dir : \(indirect string, offset: 0x0\): .
<19> DW_AT_stmt_list : 0x0
<1><1d>: Abbrev Number: 2 \(DW_TAG_variable\)
<1e> DW_AT_name : foo
<22> DW_AT_decl_file : 1
<23> DW_AT_decl_line : 1
<24> DW_AT_type : <0x2e>
<28> DW_AT_external : 1
<28> DW_AT_location : 5 byte block: 3 4 0 0 0 \(DW_OP_addr: 4\)
<1><2e>: Abbrev Number: 3 \(DW_TAG_base_type\)
<2f> DW_AT_byte_size : 4
<30> DW_AT_encoding : 5 \(signed\)
<31> DW_AT_name : int
<1><35>: Abbrev Number: 0
Contents of the .debug_abbrev section:
Number TAG \(0x0\)
1 DW_TAG_compile_unit \[has children\]
DW_AT_producer DW_FORM_strp
DW_AT_language DW_FORM_data1
DW_AT_name DW_FORM_strp
DW_AT_comp_dir DW_FORM_strp
DW_AT_stmt_list DW_FORM_sec_offset
DW_AT value: 0 DW_FORM value: 0
2 DW_TAG_variable \[no children\]
DW_AT_name DW_FORM_string
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT_external DW_FORM_flag_present
DW_AT_location DW_FORM_exprloc
DW_AT value: 0 DW_FORM value: 0
3 DW_TAG_base_type \[no children\]
DW_AT_byte_size DW_FORM_data1
DW_AT_encoding DW_FORM_data1
DW_AT_name DW_FORM_string
DW_AT value: 0 DW_FORM value: 0
Contents of the .debug_aranges section:
Length: 20
Version: 2
Offset into .debug_info: 0x0
Pointer Size: 4
Segment Size: 0
Address Length
00000000 00000000
Raw dump of debug contents of section .debug_line:
Offset: 0x0
Length: 45
DWARF Version: 2
Prologue Length: 39
Minimum Instruction Length: 1
Initial value of 'is_stmt': 1
Line Base: -5
Line Range: 14
Opcode Base: 13
Opcodes:
Opcode 1 has 0 args
Opcode 2 has 1 args
Opcode 3 has 1 args
Opcode 4 has 1 args
Opcode 5 has 1 args
Opcode 6 has 0 args
Opcode 7 has 0 args
Opcode 8 has 0 args
Opcode 9 has 1 args
Opcode 10 has 0 args
Opcode 11 has 0 args
Opcode 12 has 1 args
The Directory Table is empty.
The File Name Table \(offset 0x1c\):
Entry Dir Time Size Name
1 0 0 0 dw2-compress-3.c
No Line Number Statements.
Contents of the .debug_str section:
0x00000000 2e00474e 55204320 342e382e 33006477 ..GNU C 4.8.3.dw
0x00000010 322d636f 6d707265 73732d33 2e6300 2-compress-3.c.

4
gas/testsuite/gas/i386/i386.exp
View File

@ -384,6 +384,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]]
run_dump_test "debug1"
run_dump_test "dw2-compress-2"
run_dump_test "dw2-compressed-2"
run_dump_test "bad-size"
@ -420,6 +421,8 @@ if [expr [istarget "i*86-*-*"] || [istarget "x86_64-*-*"]] then {
run_list_test_stdin "list-3" "-al"
run_dump_test "dw2-compress-1"
run_dump_test "dw2-compress-3"
run_dump_test "dw2-compressed-1"
run_dump_test "dw2-compressed-3"
}
}
@ -735,6 +738,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
run_dump_test "x86-64-mpx-branch-2"
run_dump_test "x86-64-dw2-compress-2"
run_dump_test "x86-64-dw2-compressed-2"
run_dump_test "x86-64-size-1"
run_dump_test "x86-64-size-2"

7
gas/testsuite/gas/i386/x86-64-dw2-compressed-2.d Normal file
View File

@ -0,0 +1,7 @@
#source: x86-64-dw2-compress-2.s
#as: --compress-debug-sections
#addr2line: 0x0 0x10 -e
#name: 64bit DWARF2 debugging information 2 with SHF_COMPRESSED
./dw2-compress-2.c:12
./dw2-compress-2.c:6

43
gas/write.c
View File

@ -1413,6 +1413,9 @@ compress_debug (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
struct z_stream_s *strm;
int x;
flagword flags = bfd_get_section_flags (abfd, sec);
unsigned int header_size, compression_header_size;
/* Maximimum compression header is 24 bytes. */
bfd_byte compression_header[24];
if (seginfo == NULL
|| sec->size < 32
@ -1427,18 +1430,26 @@ compress_debug (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
if (strm == NULL)
return;
if (flag_compress_debug == COMPRESS_DEBUG_GABI_ZLIB)
stdoutput->flags |= BFD_COMPRESS | BFD_COMPRESS_GABI;
else
stdoutput->flags |= BFD_COMPRESS;
compression_header_size
= bfd_get_compression_header_size (stdoutput, NULL);
/* Create a new frag to contain the "ZLIB" header. */
header_size = 12 + compression_header_size;
first_newf = frag_alloc (ob);
if (obstack_room (ob) < 12)
if (obstack_room (ob) < header_size)
first_newf = frag_alloc (ob);
if (obstack_room (ob) < 12)
as_fatal (_("can't extend frag %u chars"), 12);
if (obstack_room (ob) < header_size)
as_fatal (_("can't extend frag %u chars"), header_size);
last_newf = first_newf;
obstack_blank_fast (ob, 12);
obstack_blank_fast (ob, header_size);
last_newf->fr_type = rs_fill;
last_newf->fr_fix = 12;
last_newf->fr_fix = header_size;
header = last_newf->fr_literal;
compressed_size = 12;
compressed_size = header_size;
/* Stream the frags through the compression engine, adding new frags
as necessary to accomodate the compressed output. */
@ -1522,21 +1533,27 @@ compress_debug (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
if (compressed_size >= uncompressed_size)
return;
memcpy (header, "ZLIB", 4);
bfd_putb64 (uncompressed_size, header + 4);
if (compression_header_size)
memcpy (header, compression_header, compression_header_size);
memcpy (header + compression_header_size, "ZLIB", 4);
bfd_putb64 (uncompressed_size, header + compression_header_size + 4);
/* Replace the uncompressed frag list with the compressed frag list. */
seginfo->frchainP->frch_root = first_newf;
seginfo->frchainP->frch_last = last_newf;
/* Update the section size and its name. */
bfd_update_compression_header (abfd, (bfd_byte *) header, sec);
x = bfd_set_section_size (abfd, sec, compressed_size);
gas_assert (x);
compressed_name = (char *) xmalloc (strlen (section_name) + 2);
compressed_name[0] = '.';
compressed_name[1] = 'z';
strcpy (compressed_name + 2, section_name + 1);
bfd_section_name (stdoutput, sec) = compressed_name;
if (!compression_header_size)
{
compressed_name = (char *) xmalloc (strlen (section_name) + 2);
compressed_name[0] = '.';
compressed_name[1] = 'z';
strcpy (compressed_name + 2, section_name + 1);
bfd_section_name (stdoutput, sec) = compressed_name;
}
}
static void

11
ld/testsuite/ChangeLog
View File

@ -1,3 +1,14 @@
2015-04-08 H.J. Lu <hongjiu.lu@intel.com>
* ld-elf/compress.exp: Add a test for
--compress-debug-sections=zlib-gabi.
(build_tests): Add 2 tests for --compress-debug-sections=zlib-gabi.
(run_tests): Likewise.
Verify linker output with zlib-gabi compressed debug input.
* ld-elf/compressed1a.d: New file.
* ld-elf/compressed1b.d: Likewise.
* ld-elf/compressed1c.d: Likewise.
2015-04-07 Alan Modra <amodra@gmail.com>
* ld-arm/tls-gdesc-nlazy.g: Adjust for readelf note.

26
ld/testsuite/ld-elf/compress.exp
View File

@ -40,6 +40,10 @@ if { ![ld_assemble $as "--compress-debug-sections $srcdir/$subdir/empty.s" tmpdi
fail "linker compressed debug sections"
}
if { ![ld_assemble $as "--compress-debug-sections=zlib-gabi $srcdir/$subdir/empty.s" tmpdir/emptyzlib.o ] } {
fail "linker compressed debug sections"
}
set build_tests {
{"Build libfoo.so with compressed debug sections"
"-shared" "-fPIC -g -Wa,--compress-debug-sections"
@ -47,13 +51,31 @@ set build_tests {
{"Build libbar.so with compressed debug sections"
"-shared" "-fPIC -g -Wa,--compress-debug-sections"
{begin.c end.c} {} "libbar.so"}
{"Build libfoozlib.so with compressed debug sections with zlib-gabi"
"-shared" "-fPIC -g -Wa,--compress-debug-sections=zlib-gabi"
{foo.c} {} "libfoozlib.so"}
{"Build libbarzlib.so with compressed debug sections with zlib-gabi"
"-shared" "-fPIC -g -Wa,--compress-debug-sections=zlib-gabi"
{begin.c end.c} {} "libbarzlib.so"}
}
set run_tests {
{"Run normal with libfoo.so with compressed debug sections"
"tmpdir/begin.o tmpdir/libfoo.so tmpdir/end.o" "-Wa,--compress-debug-sections"
{main.c} "normal" "normal.out"}
"tmpdir/begin.o tmpdir/libfoo.so tmpdir/end.o" ""
{main.c} "normal" "normal.out" "-Wa,--compress-debug-sections"}
{"Run normal with libfoo.so with compressed debug sections with zlib-gabi"
"tmpdir/begin.o tmpdir/libfoozlib.so tmpdir/end.o" ""
{main.c} "normal" "normal.out" "-Wa,--compress-debug-sections=zlib-gabi"}
}
run_cc_link_tests $build_tests
run_ld_link_exec_tests [] $run_tests
set test_name "Link with zlib-gabi compressed debug input"
send_log "cmp tmpdir/libfoo.so tmpdir/libfoozlib.so\n"
if { [catch {exec cmp tmpdir/libfoo.so tmpdir/libfoozlib.so}] } then {
send_log "tmpdir/libfoo.so tmpdir/libfoozlib.so differ.\n"
fail "$test_name"
} else {
pass "$test_name"
}

10
ld/testsuite/ld-elf/compressed1a.d Normal file
View File

@ -0,0 +1,10 @@
#source: compress1.s
#as: --compress-debug-sections=zlib-gabi
#ld: -e func_cu2
#readelf: -t
#notarget: alpha-*
#failif
#...
.*COMPRESSED.*
#...

9
ld/testsuite/ld-elf/compressed1b.d Normal file
View File

@ -0,0 +1,9 @@
#source: compress1.s
#as: --compress-debug-sections=zlib-gabi
#ld: -r
#readelf: -t
#failif
#...
.*COMPRESSED.*
#...

10
ld/testsuite/ld-elf/compressed1c.d Normal file
View File

@ -0,0 +1,10 @@
#source: compress1.s
#as: --compress-debug-sections=zlib-gabi
#ld: -shared
#readelf: -t
#target: *-*-linux* *-*-gnu*
#failif
#...
.*COMPRESSED.*
#...