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core/binutils to 2.31.1-4

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This commit is contained in:
Kevin Mihelich 2018-12-29 01:25:22 +00:00
parent 430312be75
commit 7f6d1506b3
3 changed files with 516 additions and 4 deletions
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316
core/binutils/0007-PR23919-Handle-ELF-compressed-header-alignment.patch Normal file
View file

@ -0,0 +1,316 @@
commit 4207142d6a5d2359170c5f9a140fc1a2351fbda9
Author: Mark Wielaard <mark@klomp.org>
Date: Tue Nov 27 11:59:10 2018 +0000
Handle ELF compressed header alignment correctly by setting up the section alignment correctly for the Elf32_Chdr or Elf64_Chdr type and respect the ch_addralign field when decompressing the section data.
PR binutils/23919
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.
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.
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index ee8cd7ef0b..6d92c51cb9 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -7419,7 +7419,8 @@ void bfd_update_compression_header
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);
@@ -8006,7 +8007,8 @@ void bfd_cache_section_contents
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 15becd7ae8..2b658298ea 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -2332,6 +2332,8 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
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_update_compression_header (bfd *abfd, bfd_byte *contents,
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 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
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 +2374,14 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
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 +2390,8 @@ RETURNS
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 +2413,10 @@ bfd_check_compression_header (bfd *abfd, bfd_byte *contents,
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 53e566e498..97ea624eb8 100644
--- a/bfd/compress.c
+++ b/bfd/compress.c
@@ -84,11 +84,13 @@ bfd_compress_section_contents (bfd *abfd, sec_ptr sec,
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 +155,9 @@ bfd_compress_section_contents (bfd *abfd, sec_ptr sec,
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 +369,24 @@ SYNOPSIS
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;
@@ -412,7 +421,8 @@ bfd_is_section_compressed_with_header (bfd *abfd, sec_ptr sec,
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 +459,11 @@ bfd_is_section_compressed (bfd *abfd, sec_ptr sec)
{
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 +492,7 @@ bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec)
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 +521,8 @@ bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec)
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 +530,7 @@ bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec)
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 bebda20195..604971dd4c 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1177,11 +1177,12 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
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)
{
/* Compressed section. Check if we should decompress. */
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 39744009ab..afb039f7b7 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -13397,12 +13397,6 @@ dump_section_as_strings (Elf_Internal_Shdr * section, Filedata * filedata)
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;
@@ -13544,12 +13538,6 @@ dump_section_as_bytes (Elf_Internal_Shdr * section,
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;
@@ -13719,12 +13707,6 @@ load_specific_debug_section (enum dwarf_section_display_enum debug,
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 f1637e9149..86bc73d9a2 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 f59cbaa22b..74e7f8deca 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

187
core/binutils/0008-PR23919-gold-Get-alignment-of-uncompressed-section.patch Normal file
View file

@ -0,0 +1,187 @@
commit 5f6c22aee74f17393b82934a5682d985672e011a
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Dec 2 05:42:36 2018 -0800
gold: Get alignment of uncompressed section from ch_addralign
The ELF compression header has a field (ch_addralign) that is set to
the alignment of the uncompressed section. This way the section itself
can have a different alignment than the decompressed section. Update
decompress_input_section to get alignment of the decompressed section
and use it when merging decompressed strings.
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.
diff --git a/gold/merge.cc b/gold/merge.cc
index de00ee9ae9..d7de11789f 100644
--- a/gold/merge.cc
+++ b/gold/merge.cc
@@ -440,9 +440,11 @@ Output_merge_string<Char_type>::do_add_input_section(Relobj* object,
{
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 @@ Output_merge_string<Char_type>::do_add_input_section(Relobj* object,
// 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 @@ Output_merge_string<Char_type>::do_add_input_section(Relobj* object,
// 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 cbeddb9158..7930de66fe 100644
--- a/gold/object.cc
+++ b/gold/object.cc
@@ -751,11 +751,13 @@ build_compressed_section_map(
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 @@ build_compressed_section_map(
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;
@@ -3064,7 +3066,8 @@ const unsigned char*
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,
@@ -3091,6 +3094,8 @@ Object::decompressed_section_contents(
{
*plen = uncompressed_size;
*is_new = false;
+ if (palign != NULL)
+ *palign = p->second.addralign;
return p->second.contents;
}
@@ -3112,6 +3117,8 @@ Object::decompressed_section_contents(
// 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 0b786a5471..b99548463d 100644
--- a/gold/object.h
+++ b/gold/object.h
@@ -373,6 +373,7 @@ struct Compressed_section_info
{
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 @@ class Object
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 @@ class Object
{
if (uncompressed_size != NULL)
*uncompressed_size = p->second.size;
+ if (palign != NULL)
+ *palign = p->second.addralign;
return true;
}
return false;
@@ -828,7 +832,7 @@ class Object
// 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 1701db1c99..75ac3bcf97 100644
--- a/gold/output.cc
+++ b/gold/output.cc
@@ -2448,7 +2448,13 @@ Output_section::add_input_section(Layout* layout,
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 +2504,6 @@ Output_section::add_input_section(Layout* layout,
}
}
- 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())

17
core/binutils/PKGBUILD
View file

@ -1,4 +1,3 @@
# $Id$
# Maintainer: Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
# Contributor: Allan McRae <allan@archlinux.org>
@ -12,7 +11,7 @@ noautobuild=1
pkgname=binutils
pkgver=2.31.1
pkgrel=3
pkgrel=4
pkgdesc='A set of programs to assemble and manipulate binary and object files'
arch=(x86_64)
url='http://www.gnu.org/software/binutils/'
@ -27,7 +26,10 @@ source=(https://ftp.gnu.org/gnu/binutils/binutils-$pkgver.tar.xz{,.sig}
0003-PR23460-Add-a-testcase-for-PR-binutils-23460.patch
0004-PR23486-Properly-merge-GNU_PROPERTY_X86_ISA_1_USED-x86_64.patch
0005-PR23486-x86-Properly-merge-GNU_PROPERTY_X86_ISA_1_USED.patch
0006-PR23428-x86-Properly-add-X86_ISA_1_NEEDED-property.patch)
0006-PR23428-x86-Properly-add-X86_ISA_1_NEEDED-property.patch
0007-PR23919-Handle-ELF-compressed-header-alignment.patch
0008-PR23919-gold-Get-alignment-of-uncompressed-section.patch
)
validpgpkeys=(3A24BC1E8FB409FA9F14371813FCEF89DD9E3C4F)
md5sums=('5b7c9d4ce96f507d95c1b9a255e52418'
'SKIP'
@ -36,7 +38,9 @@ md5sums=('5b7c9d4ce96f507d95c1b9a255e52418'
'dd2284134542efe8e38137f5c829a371'
'5e4aecddbea729fd045d001e8e8db14e'
'02247a5f1c06f8a9ade689b7e68629ce'
'2764b8760bdc8d5c20698202d22b7fcf')
'2764b8760bdc8d5c20698202d22b7fcf'
'5db54b24fb9de56d66111f63aea3b809'
'201036d5806b7b037eb53bf796219525')
prepare() {
mkdir -p binutils-build
@ -55,6 +59,11 @@ prepare() {
patch -Np1 -i ../0002-PR23460-Close-resource-leaks-in-the-BFD-library-s-plugin-han.patch
patch -Np1 -i ../0003-PR23460-Add-a-testcase-for-PR-binutils-23460.patch
# FS#61151
# https://sourceware.org/bugzilla/show_bug.cgi?id=23919
patch -Np1 -i ../0007-PR23919-Handle-ELF-compressed-header-alignment.patch
patch -Np1 -i ../0008-PR23919-gold-Get-alignment-of-uncompressed-section.patch
# hack! - libiberty configure tests for header files using "$CPP $CPPFLAGS"
sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" libiberty/configure
}