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Ensure that compressed sections that have an ELF compression header structure at the start are correctly aligned.

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PR 26428
bfd	* bfd.c (bfd_update_compression_header): Also set the sh_addralign
	field in the ELF header of the compressed sections.

ld	* testsuite/ld-elf/zlibbegin.rS: Update expected output.
	* testsuite/ld-elf/zlibnormal.rS: Likewise.
This commit is contained in:
Nick Clifton
2020-08-20 15:03:21 +01:00
parent 33bf4c5c10
commit 01147b2082
5 changed files with 17 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2020-08-20 Nick Clifton <nickc@redhat.com>
PR 26428
* bfd.c (bfd_update_compression_header): Also set the sh_addralign
field in the ELF header of the compressed sections.
2020-08-20 Nick Clifton <nickc@redhat.com> 2020-08-20 Nick Clifton <nickc@redhat.com>
PR 26406 PR 26406

3
bfd/bfd.c
View File

@ -2558,6 +2558,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
if ((abfd->flags & BFD_COMPRESS_GABI) != 0) if ((abfd->flags & BFD_COMPRESS_GABI) != 0)
{ {
const struct elf_backend_data *bed = get_elf_backend_data (abfd); const struct elf_backend_data *bed = get_elf_backend_data (abfd);
struct bfd_elf_section_data * esd = elf_section_data (sec);
/* Set the SHF_COMPRESSED bit. */ /* Set the SHF_COMPRESSED bit. */
elf_section_flags (sec) |= SHF_COMPRESSED; elf_section_flags (sec) |= SHF_COMPRESSED;
@ -2571,6 +2572,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
&echdr->ch_addralign); &echdr->ch_addralign);
/* bfd_log2 (alignof (Elf32_Chdr)) */ /* bfd_log2 (alignof (Elf32_Chdr)) */
bfd_set_section_alignment (sec, 2); bfd_set_section_alignment (sec, 2);
esd->this_hdr.sh_addralign = 4;
} }
else else
{ {
@ -2582,6 +2584,7 @@ bfd_update_compression_header (bfd *abfd, bfd_byte *contents,
&echdr->ch_addralign); &echdr->ch_addralign);
/* bfd_log2 (alignof (Elf64_Chdr)) */ /* bfd_log2 (alignof (Elf64_Chdr)) */
bfd_set_section_alignment (sec, 3); bfd_set_section_alignment (sec, 3);
esd->this_hdr.sh_addralign = 8;
} }
break; break;
} }

6
ld/ChangeLog
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@ -1,3 +1,9 @@
2020-08-20 Nick Clifton <nickc@redhat.com>
PR 26428
* testsuite/ld-elf/zlibbegin.rS: Update expected output.
* testsuite/ld-elf/zlibnormal.rS: Likewise.
2020-08-16 Alan Modra <amodra@gmail.com> 2020-08-16 Alan Modra <amodra@gmail.com>
* testsuite/ld-powerpc/inline.s, * testsuite/ld-powerpc/inline.s,

2
ld/testsuite/ld-elf/zlibbegin.rS
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@ -1,3 +1,3 @@
#... #...
+\[[ 0-9]+\] .debug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +G?C +0 +0 +1 +\[[ 0-9]+\] .debug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +G?C +0 +0 +[48]
#pass #pass

2
ld/testsuite/ld-elf/zlibnormal.rS
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@ -1,3 +1,3 @@
#... #...
+\[[ 0-9]+\] .debug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +G?C +0 +0 +1 +\[[ 0-9]+\] .debug_.* +(PROGBITS|MIPS_DWARF) +0+ +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +G?C +0 +0 +[48]
#pass #pass