Import patch to fix PR23919 from the mainline.
PR binutils/23919
bfd * bfd.c (bfd_update_compression_header): Explicitly set alignment.
(bfd_check_compression_header): Add uncompressed_alignment_power
argument. Check ch_addralign is a power of 2.
* bfd-in2.h: Regenerated.
* compress.c (bfd_compress_section_contents): Get and set
orig_uncompressed_alignment_pow if section is decompressed.
(bfd_is_section_compressed_with_header): Add and get
uncompressed_align_pow_p argument.
(bfd_is_section_compressed): Add uncompressed_align_power argument
to bfd_is_section_compressed_with_header call.
(bfd_init_section_decompress_status): Get and set
uncompressed_alignment_power.
* elf.c (_bfd_elf_make_section_from_shdr): Add
uncompressed_align_power argument to
bfd_is_section_compressed_with_header call.
* compress.c (bfd_is_section_compressed_with_header): Initialize
* uncompressed_align_pow_p to 0.
binutils* readelf.c (dump_sections_as_strings): Remove bogus addralign check.
(dump_sections_as_bytes): Likewise.
(load_specific_debug_sections): Likewise.
* testsuite/binutils-all/dw2-3.rS: Adjust alignment.
* testsuite/binutils-all/dw2-3.rt: Likewise.
gold * merge.cc (Output_merge_string<Char_type>::do_add_input_section):
Get addralign from decompressed_section_contents.
* object.cc (build_compressed_section_map): Set info.addralign.
(Object::decompressed_section_contents): Add a palign
argument and store p->second.addralign in *palign if it isn't
NULL.
* object.h (Compressed_section_info): Add addralign.
(section_is_compressed): Add a palign argument, default it
to NULL, store p->second.addralign in *palign if it isn't NULL.
(Object::decompressed_section_contents): Likewise.
* output.cc (Output_section::add_input_section): Get addralign
from section_is_compressed.
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5bb453e..2dc2d97 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,31 @@
+2019-02-18 Nick Clifton <nickc@redhat.com>
+
+ Import from the mainline:
+ 2018-11-27 Mark Wielaard <mark@klomp.org>
+
+ PR binutils/23919
+ * bfd.c (bfd_update_compression_header): Explicitly set alignment.
+ (bfd_check_compression_header): Add uncompressed_alignment_power
+ argument. Check ch_addralign is a power of 2.
+ * bfd-in2.h: Regenerated.
+ * compress.c (bfd_compress_section_contents): Get and set
+ orig_uncompressed_alignment_pow if section is decompressed.
+ (bfd_is_section_compressed_with_header): Add and get
+ uncompressed_align_pow_p argument.
+ (bfd_is_section_compressed): Add uncompressed_align_power argument
+ to bfd_is_section_compressed_with_header call.
+ (bfd_init_section_decompress_status): Get and set
+ uncompressed_alignment_power.
+ * elf.c (_bfd_elf_make_section_from_shdr): Add
+ uncompressed_align_power argument to
+ bfd_is_section_compressed_with_header call.
+
+ 2018-11-27 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR binutils/23919
+ * compress.c (bfd_is_section_compressed_with_header): Initialize
+ * uncompressed_align_pow_p to 0.
+
2018-07-04 Joel Brobecker <brobecker@adacore.com>
* development.sh (development): Set to false.
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 93745bd..d2944a0 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -7292,7 +7292,8 @@
bfd_boolean bfd_check_compression_header
(bfd *abfd, bfd_byte *contents, asection *sec,
- bfd_size_type *uncompressed_size);
+ bfd_size_type *uncompressed_size,
+ unsigned int *uncompressed_alignment_power);
int bfd_get_compression_header_size (bfd *abfd, asection *sec);
@@ -7868,7 +7869,8 @@
bfd_boolean bfd_is_section_compressed_with_header
(bfd *abfd, asection *section,
int *compression_header_size_p,
- bfd_size_type *uncompressed_size_p);
+ bfd_size_type *uncompressed_size_p,
+ unsigned int *uncompressed_alignment_power_p);
bfd_boolean bfd_is_section_compressed
(bfd *abfd, asection *section);
diff --git a/bfd/bfd.c b/bfd/bfd.c
index 8517104..b859d65 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -2332,6 +2332,8 @@
bfd_put_32 (abfd, sec->size, &echdr->ch_size);
bfd_put_32 (abfd, 1 << sec->alignment_power,
&echdr->ch_addralign);
+ /* bfd_log2 (alignof (Elf32_Chdr)). */
+ bfd_set_section_alignment (abfd, sec, 2);
}
else
{
@@ -2342,6 +2344,8 @@
bfd_put_64 (abfd, sec->size, &echdr->ch_size);
bfd_put_64 (abfd, 1 << sec->alignment_power,
&echdr->ch_addralign);
+ /* bfd_log2 (alignof (Elf64_Chdr)). */
+ bfd_set_section_alignment (abfd, sec, 3);
}
}
else
@@ -2354,6 +2358,8 @@
order. */
memcpy (contents, "ZLIB", 4);
bfd_putb64 (sec->size, contents + 4);
+ /* No way to keep the original alignment, just use 1 always. */
+ bfd_set_section_alignment (abfd, sec, 0);
}
}
}
@@ -2368,12 +2374,15 @@
SYNOPSIS
bfd_boolean bfd_check_compression_header
(bfd *abfd, bfd_byte *contents, asection *sec,
- bfd_size_type *uncompressed_size);
+ bfd_size_type *uncompressed_size,
+ unsigned int *uncompressed_alignment_power);
+
DESCRIPTION
Check the compression header at CONTENTS of SEC in ABFD and
- store the uncompressed size in UNCOMPRESSED_SIZE if the
- compression header is valid.
+ store the uncompressed size in UNCOMPRESSED_SIZE and the
+ uncompressed data alignment in UNCOMPRESSED_ALIGNMENT_POWER
+ if the compression header is valid.
RETURNS
Return TRUE if the compression header is valid.
@@ -2382,7 +2391,8 @@
bfd_boolean
bfd_check_compression_header (bfd *abfd, bfd_byte *contents,
asection *sec,
- bfd_size_type *uncompressed_size)
+ bfd_size_type *uncompressed_size,
+ unsigned int *uncompressed_alignment_power)
{
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& (elf_section_flags (sec) & SHF_COMPRESSED) != 0)
@@ -2404,9 +2414,10 @@
chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign);
}
if (chdr.ch_type == ELFCOMPRESS_ZLIB
- && chdr.ch_addralign == 1U << sec->alignment_power)
+ && chdr.ch_addralign == (1U << bfd_log2 (chdr.ch_addralign)))
{
*uncompressed_size = chdr.ch_size;
+ *uncompressed_alignment_power = bfd_log2 (chdr.ch_addralign);
return TRUE;
}
}
diff --git a/bfd/compress.c b/bfd/compress.c
index 53e566e..38803eb 100644
--- a/bfd/compress.c
+++ b/bfd/compress.c
@@ -84,11 +84,13 @@
int zlib_size = 0;
int orig_compression_header_size;
bfd_size_type orig_uncompressed_size;
+ unsigned int orig_uncompressed_alignment_pow;
int header_size = bfd_get_compression_header_size (abfd, NULL);
bfd_boolean compressed
= bfd_is_section_compressed_with_header (abfd, sec,
&orig_compression_header_size,
- &orig_uncompressed_size);
+ &orig_uncompressed_size,
+ &orig_uncompressed_alignment_pow);
/* Either ELF compression header or the 12-byte, "ZLIB" + 8-byte size,
overhead in .zdebug* section. */
@@ -153,6 +155,8 @@
return 0;
}
free (uncompressed_buffer);
+ bfd_set_section_alignment (abfd, sec,
+ orig_uncompressed_alignment_pow);
sec->contents = buffer;
sec->compress_status = COMPRESS_SECTION_DONE;
return orig_uncompressed_size;
@@ -364,20 +368,25 @@
bfd_boolean bfd_is_section_compressed_with_header
(bfd *abfd, asection *section,
int *compression_header_size_p,
- bfd_size_type *uncompressed_size_p);
+ bfd_size_type *uncompressed_size_p,
+ unsigned int *uncompressed_alignment_power_p);
+
DESCRIPTION
Return @code{TRUE} if @var{section} is compressed. Compression
- header size is returned in @var{compression_header_size_p} and
- uncompressed size is returned in @var{uncompressed_size_p}. If
- compression is unsupported, compression header size is returned
- with -1 and uncompressed size is returned with 0.
+ header size is returned in @var{compression_header_size_p},
+ uncompressed size is returned in @var{uncompressed_size_p}
+ and the uncompressed data alignement power is returned in
+ @var{uncompressed_align_pow_p}. If compression is
+ unsupported, compression header size is returned with -1
+ and uncompressed size is returned with 0.
*/
bfd_boolean
bfd_is_section_compressed_with_header (bfd *abfd, sec_ptr sec,
int *compression_header_size_p,
- bfd_size_type *uncompressed_size_p)
+ bfd_size_type *uncompressed_size_p,
+ unsigned int *uncompressed_align_pow_p)
{
bfd_byte header[MAX_COMPRESSION_HEADER_SIZE];
int compression_header_size;
@@ -385,6 +394,8 @@
unsigned int saved = sec->compress_status;
bfd_boolean compressed;
+ *uncompressed_align_pow_p = 0;
+
compression_header_size = bfd_get_compression_header_size (abfd, sec);
if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE)
abort ();
@@ -412,7 +423,8 @@
if (compression_header_size != 0)
{
if (!bfd_check_compression_header (abfd, header, sec,
- uncompressed_size_p))
+ uncompressed_size_p,
+ uncompressed_align_pow_p))
compression_header_size = -1;
}
/* Check for the pathalogical case of a debug string section that
@@ -449,9 +461,11 @@
{
int compression_header_size;
bfd_size_type uncompressed_size;
+ unsigned int uncompressed_align_power;
return (bfd_is_section_compressed_with_header (abfd, sec,
&compression_header_size,
- &uncompressed_size)
+ &uncompressed_size,
+ &uncompressed_align_power)
&& compression_header_size >= 0
&& uncompressed_size > 0);
}
@@ -480,6 +494,7 @@
int compression_header_size;
int header_size;
bfd_size_type uncompressed_size;
+ unsigned int uncompressed_alignment_power = 0;
compression_header_size = bfd_get_compression_header_size (abfd, sec);
if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE)
@@ -508,7 +523,8 @@
uncompressed_size = bfd_getb64 (header + 4);
}
else if (!bfd_check_compression_header (abfd, header, sec,
- &uncompressed_size))
+ &uncompressed_size,
+ &uncompressed_alignment_power))
{
bfd_set_error (bfd_error_wrong_format);
return FALSE;
@@ -516,6 +532,7 @@
sec->compressed_size = sec->size;
sec->size = uncompressed_size;
+ bfd_set_section_alignment (abfd, sec, uncompressed_alignment_power);
sec->compress_status = DECOMPRESS_SECTION_SIZED;
return TRUE;
diff --git a/bfd/elf.c b/bfd/elf.c
index 0f75375..88a5d12 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1177,10 +1177,12 @@
enum { nothing, compress, decompress } action = nothing;
int compression_header_size;
bfd_size_type uncompressed_size;
+ unsigned int uncompressed_align_power;
bfd_boolean compressed
= bfd_is_section_compressed_with_header (abfd, newsect,
&compression_header_size,
- &uncompressed_size);
+ &uncompressed_size,
+ &uncompressed_align_power);
if (compressed)
{
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 4f3284a..01cc72e 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,15 @@
+2019-02-18 Nick Clifton <nickc@redhat.com>
+
+ Import from the mainline:
+ 2018-11-27 Mark Wielaard <mark@klomp.org>
+
+ PR binutils/23919
+ * readelf.c (dump_sections_as_strings): Remove bogus addralign check.
+ (dump_sections_as_bytes): Likewise.
+ (load_specific_debug_sections): Likewise.
+ * testsuite/binutils-all/dw2-3.rS: Adjust alignment.
+ * testsuite/binutils-all/dw2-3.rt: Likewise.
+
2018-07-02 Thomas Preud'homme <thomas.preudhomme@arm.com>
* NEWS: Use command-line consistently when used in a compount word.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 1b50ba7..fbeea76 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -13336,12 +13336,6 @@
printable_section_name (filedata, section), chdr.ch_type);
return FALSE;
}
- else if (chdr.ch_addralign != section->sh_addralign)
- {
- warn (_("compressed section '%s' is corrupted\n"),
- printable_section_name (filedata, section));
- return FALSE;
- }
uncompressed_size = chdr.ch_size;
start += compression_header_size;
new_size -= compression_header_size;
@@ -13483,12 +13477,6 @@
printable_section_name (filedata, section), chdr.ch_type);
return FALSE;
}
- else if (chdr.ch_addralign != section->sh_addralign)
- {
- warn (_("compressed section '%s' is corrupted\n"),
- printable_section_name (filedata, section));
- return FALSE;
- }
uncompressed_size = chdr.ch_size;
start += compression_header_size;
new_size -= compression_header_size;
@@ -13658,12 +13646,6 @@
section->name, chdr.ch_type);
return FALSE;
}
- else if (chdr.ch_addralign != sec->sh_addralign)
- {
- warn (_("compressed section '%s' is corrupted\n"),
- section->name);
- return FALSE;
- }
uncompressed_size = chdr.ch_size;
start += compression_header_size;
size -= compression_header_size;
diff --git a/binutils/testsuite/binutils-all/dw2-3.rS b/binutils/testsuite/binutils-all/dw2-3.rS
index f1637e9..86bc73d 100644
--- a/binutils/testsuite/binutils-all/dw2-3.rS
+++ b/binutils/testsuite/binutils-all/dw2-3.rS
@@ -1,3 +1,3 @@
#...
- +\[[ 0-9]+\] .debug_info +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +C +0 +0 +1
+ +\[[ 0-9]+\] .debug_info +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +C +0 +0 +(4|8)
#pass
diff --git a/binutils/testsuite/binutils-all/dw2-3.rt b/binutils/testsuite/binutils-all/dw2-3.rt
index f59cbaa..74e7f8d 100644
--- a/binutils/testsuite/binutils-all/dw2-3.rt
+++ b/binutils/testsuite/binutils-all/dw2-3.rt
@@ -1,6 +1,6 @@
#...
+\[[ 0-9]+\] .debug_info
- +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ +[0-9a-f]+ +0 +0 +1
+ +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ +[0-9a-f]+ +0 +0 +(4|8)
+\[0+800\]: COMPRESSED
+ZLIB, 0+9d, 1
#pass
diff --git a/gold/ChangeLog b/gold/ChangeLog
index 922c2ff..6d564cf 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,22 @@
+2019-02-18 Nick Clifton <nickc@redhat.com>
+
+ Import from the mainline:
+ 2018-12-02 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR binutils/23919
+ * merge.cc (Output_merge_string<Char_type>::do_add_input_section):
+ Get addralign from decompressed_section_contents.
+ * object.cc (build_compressed_section_map): Set info.addralign.
+ (Object::decompressed_section_contents): Add a palign
+ argument and store p->second.addralign in *palign if it isn't
+ NULL.
+ * object.h (Compressed_section_info): Add addralign.
+ (section_is_compressed): Add a palign argument, default it
+ to NULL, store p->second.addralign in *palign if it isn't NULL.
+ (Object::decompressed_section_contents): Likewise.
+ * output.cc (Output_section::add_input_section): Get addralign
+ from section_is_compressed.
+
2018-06-26 Nick Clifton <nickc@redhat.com>
* po/uk.po: Updated Ukranian translation.
diff --git a/gold/merge.cc b/gold/merge.cc
index de00ee9..d7de117 100644
--- a/gold/merge.cc
+++ b/gold/merge.cc
@@ -440,9 +440,11 @@
{
section_size_type sec_len;
bool is_new;
+ uint64_t addralign = this->addralign();
const unsigned char* pdata = object->decompressed_section_contents(shndx,
&sec_len,
- &is_new);
+ &is_new,
+ &addralign);
const Char_type* p = reinterpret_cast<const Char_type*>(pdata);
const Char_type* pend = p + sec_len / sizeof(Char_type);
@@ -494,7 +496,7 @@
// aligned, so each string within the section must retain the same
// modulo.
uintptr_t init_align_modulo = (reinterpret_cast<uintptr_t>(pdata)
- & (this->addralign() - 1));
+ & (addralign - 1));
bool has_misaligned_strings = false;
while (p < pend)
@@ -503,7 +505,7 @@
// Within merge input section each string must be aligned.
if (len != 0
- && ((reinterpret_cast<uintptr_t>(p) & (this->addralign() - 1))
+ && ((reinterpret_cast<uintptr_t>(p) & (addralign - 1))
!= init_align_modulo))
has_misaligned_strings = true;
diff --git a/gold/object.cc b/gold/object.cc
index 374340f..711793e 100644
--- a/gold/object.cc
+++ b/gold/object.cc
@@ -751,11 +751,13 @@
const unsigned char* contents =
obj->section_contents(i, &len, false);
uint64_t uncompressed_size;
+ Compressed_section_info info;
if (is_zcompressed)
{
// Skip over the ".zdebug" prefix.
name += 7;
uncompressed_size = get_uncompressed_size(contents, len);
+ info.addralign = shdr.get_sh_addralign();
}
else
{
@@ -763,8 +765,8 @@
name += 6;
elfcpp::Chdr<size, big_endian> chdr(contents);
uncompressed_size = chdr.get_ch_size();
+ info.addralign = chdr.get_ch_addralign();
}
- Compressed_section_info info;
info.size = convert_to_section_size_type(uncompressed_size);
info.flag = shdr.get_sh_flags();
info.contents = NULL;
@@ -3060,7 +3062,8 @@
Object::decompressed_section_contents(
unsigned int shndx,
section_size_type* plen,
- bool* is_new)
+ bool* is_new,
+ uint64_t* palign)
{
section_size_type buffer_size;
const unsigned char* buffer = this->do_section_contents(shndx, &buffer_size,
@@ -3087,6 +3090,8 @@
{
*plen = uncompressed_size;
*is_new = false;
+ if (palign != NULL)
+ *palign = p->second.addralign;
return p->second.contents;
}
@@ -3108,6 +3113,8 @@
// once in this pass.
*plen = uncompressed_size;
*is_new = true;
+ if (palign != NULL)
+ *palign = p->second.addralign;
return uncompressed_data;
}
diff --git a/gold/object.h b/gold/object.h
index 0b786a5..b995484 100644
--- a/gold/object.h
+++ b/gold/object.h
@@ -373,6 +373,7 @@
{
section_size_type size;
elfcpp::Elf_Xword flag;
+ uint64_t addralign;
const unsigned char* contents;
};
typedef std::map<unsigned int, Compressed_section_info> Compressed_section_map;
@@ -808,7 +809,8 @@
bool
section_is_compressed(unsigned int shndx,
- section_size_type* uncompressed_size) const
+ section_size_type* uncompressed_size,
+ elfcpp::Elf_Xword* palign = NULL) const
{
if (this->compressed_sections_ == NULL)
return false;
@@ -818,6 +820,8 @@
{
if (uncompressed_size != NULL)
*uncompressed_size = p->second.size;
+ if (palign != NULL)
+ *palign = p->second.addralign;
return true;
}
return false;
@@ -828,7 +832,7 @@
// by the caller.
const unsigned char*
decompressed_section_contents(unsigned int shndx, section_size_type* plen,
- bool* is_cached);
+ bool* is_cached, uint64_t* palign = NULL);
// Discard any buffers of decompressed sections. This is done
// at the end of the Add_symbols task.
diff --git a/gold/output.cc b/gold/output.cc
index 1701db1..51836db 100644
--- a/gold/output.cc
+++ b/gold/output.cc
@@ -2448,7 +2448,14 @@
unsigned int reloc_shndx,
bool have_sections_script)
{
+ section_size_type input_section_size = shdr.get_sh_size();
+ section_size_type uncompressed_size;
elfcpp::Elf_Xword addralign = shdr.get_sh_addralign();
+
+ if (object->section_is_compressed(shndx, &uncompressed_size,
+ &addralign))
+ input_section_size = uncompressed_size;
+
if ((addralign & (addralign - 1)) != 0)
{
object->error(_("invalid alignment %lu for section \"%s\""),
@@ -2498,11 +2505,6 @@
}
}
- section_size_type input_section_size = shdr.get_sh_size();
- section_size_type uncompressed_size;
- if (object->section_is_compressed(shndx, &uncompressed_size))
- input_section_size = uncompressed_size;
-
off_t offset_in_section;
if (this->has_fixed_layout())
