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Always keep SHT_NOTE sections

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bfd/

2010-01-07  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/11143
	* elflink.c (elf_gc_sweep): Keep SHT_NOTE section.

ld/testsuite/

2010-01-07  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/11143
	* ld-gc/gc.exp: Run abi-note.

	* ld-gc/abi-note.d: New.
	* ld-gc/abi-note.s: Likewise.
This commit is contained in:
H.J. Lu 2010-01-07 13:44:37 +00:00
parent 089b4803bf
commit 16583161e1
6 changed files with 41 additions and 4 deletions
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5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11143
* elflink.c (elf_gc_sweep): Keep SHT_NOTE section.
2010-01-04 Daniel Gutson <dgutson@codesourcery.com>
* bfd.m4 (BFD_HAVE_SYS_PROCFS_TYPE): Define _STRUCTURE_PROC

7
bfd/elflink.c
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@ -1,6 +1,6 @@
/* ELF linking support for BFD.
Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008, 2009
2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@ -11527,9 +11527,10 @@ elf_gc_sweep (bfd *abfd, struct bfd_link_info *info)
o->gc_mark = first->gc_mark;
}
else if ((o->flags & (SEC_DEBUGGING | SEC_LINKER_CREATED)) != 0
|| (o->flags & (SEC_ALLOC | SEC_LOAD | SEC_RELOC)) == 0)
|| (o->flags & (SEC_ALLOC | SEC_LOAD | SEC_RELOC)) == 0
|| elf_section_data (o)->this_hdr.sh_type == SHT_NOTE)
{
/* Keep debug and special sections. */
/* Keep debug, special and SHT_NOTE sections. */
o->gc_mark = 1;
}

7
ld/testsuite/ChangeLog
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@ -1,3 +1,10 @@
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11143
* ld-gc/gc.exp: Run abi-note.
* ld-gc/abi-note.d: New.
* ld-gc/abi-note.s: Likewise.
For older changes see ChangeLog-2009

8
ld/testsuite/ld-gc/abi-note.d Normal file
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@ -0,0 +1,8 @@
#name: --gc-sections with note section
#ld: --gc-sections -e _start
#readelf: -S --wide
#target: *-*-linux*
#...
.* .note.ABI-tag[ ]+NOTE.*
#...

15
ld/testsuite/ld-gc/abi-note.s Normal file
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@ -0,0 +1,15 @@
.text
.global _start
_start:
.long 1
.section ".note.ABI-tag", "a"
.p2align 2
.long 1f - 0f /* name length */
.long 3f - 2f /* data length */
.long 1 /* note type */
0: .asciz "GNU" /* vendor name */
1: .p2align 2
2: .long 1
.long 2
3: .p2align 2 /* pad out section */

3
ld/testsuite/ld-gc/gc.exp
View File

@ -1,5 +1,5 @@
# Expect script for ld-gc tests
# Copyright 2008, 2009
# Copyright 2008, 2009, 2010
# Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
@ -90,3 +90,4 @@ test_gc "Check --gc-section/-r/-e" "gcrel" $ld "-r --gc-sections -e main"
test_gc "Check --gc-section/-r/-u" "gcrel" $ld "-r --gc-sections -u used_func"
run_dump_test "noent"
run_dump_test "abi-note"