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2010-02-12 Daniel Gutson <dgutson@codesourcery.com>

Browse Source 
bfd/
	* elf32-arm.c (elf32_arm_output_arch_local_syms): add
	missing mapping symbol to data only sections.

	ld/testsuite/
	* ld-arm/arm-elf.exp (armelftests): New test case added.
	* ld-arm/data-only-map.s: New file.
	* ld-arm/data-only-map.d: New file.
	* ld-arm/data-only-map.ld: New file.
This commit is contained in:
Daniel Gutson 2010-02-12 20:52:52 +00:00
parent 77551a33a8
commit 3381116249
7 changed files with 94 additions and 1 deletions
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5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2010-02-12 Daniel Gutson <dgutson@codesourcery.com>
* elf32-arm.c (elf32_arm_output_arch_local_syms): add
missing mapping symbol to data only sections.
2010-02-11 David S. Miller <davem@davemloft.net>
* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): For R_SPARC_GOTDATA_OP_HIX22

31
bfd/elf32-arm.c
View File

@ -13004,7 +13004,9 @@ arm_map_one_stub (struct bfd_hash_entry * gen_entry,
return TRUE;
}
/* Output mapping symbols for linker generated sections. */
/* Output mapping symbols for linker generated sections,
and for those data-only sections that do not have a
$d. */
static bfd_boolean
elf32_arm_output_arch_local_syms (bfd *output_bfd,
@ -13019,6 +13021,7 @@ elf32_arm_output_arch_local_syms (bfd *output_bfd,
struct elf32_arm_link_hash_table *htab;
bfd_vma offset;
bfd_size_type size;
bfd *input_bfd;
htab = elf32_arm_hash_table (info);
if (htab == NULL)
@ -13030,6 +13033,32 @@ elf32_arm_output_arch_local_syms (bfd *output_bfd,
osi.info = info;
osi.func = func;
/* Add a $d mapping symbol to data-only sections that
don't have any mapping symbol. This may result in (harmless) redundant
mapping symbols. */
for (input_bfd = info->input_bfds;
input_bfd != NULL;
input_bfd = input_bfd->link_next)
{
if ((input_bfd->flags & (BFD_LINKER_CREATED | HAS_SYMS)) == HAS_SYMS)
for (osi.sec = input_bfd->sections;
osi.sec != NULL;
osi.sec = osi.sec->next)
{
if (osi.sec->output_section != NULL
&& (osi.sec->flags & (SEC_HAS_CONTENTS | SEC_LINKER_CREATED))
== SEC_HAS_CONTENTS
&& get_arm_elf_section_data (osi.sec) != NULL
&& get_arm_elf_section_data (osi.sec)->mapcount == 0)
{
osi.sec_shndx = _bfd_elf_section_from_bfd_section
(output_bfd, osi.sec->output_section);
if (osi.sec_shndx != (int)SHN_BAD)
elf32_arm_output_map_sym (&osi, ARM_MAP_DATA, 0);
}
}
}
/* ARM->Thumb glue. */
if (htab->arm_glue_size > 0)
{

7
ld/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2010-02-12 Daniel Gutson <dgutson@codesourcery.com>
* ld-arm/arm-elf.exp (armelftests): New test case added.
* ld-arm/data-only-map.s: New file.
* ld-arm/data-only-map.d: New file.
* ld-arm/data-only-map.ld: New file.
2010-02-11 David S. Miller <davem@davemloft.net>
* ld-sparc/gotop32.s: Add local symbol case.

3
ld/testsuite/ld-arm/arm-elf.exp
View File

@ -241,6 +241,9 @@ set armelftests {
{"Relocation boundaries" "-defsym x=0 -defsym y=0 -defsym _start=0" "" {reloc-boundaries.s}
{{objdump -s reloc-boundaries.d}}
"reloc-boundaries"}
{"Data only mapping symbols" "-T data-only-map.ld -Map map" "" {data-only-map.s}
{{objdump -dr data-only-map.d}}
"data-only-map"}
}
run_ld_link_tests $armelftests

13
ld/testsuite/ld-arm/data-only-map.d Normal file
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@ -0,0 +1,13 @@
[^:]*: file format elf32-littlearm
Disassembly of section \.text:
00000000 <_start>:
0: eb01 0002 add\.w r0, r1, r2
4: eb010002 \.word 0xeb010002
8: eb01 0002 add\.w r0, r1, r2
c: eb01 0200 add\.w r2, r1, r0
10: eb010002 \.word 0xeb010002
14: eb010002 \.word 0xeb010002

16
ld/testsuite/ld-arm/data-only-map.ld Normal file
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@ -0,0 +1,16 @@
/* Script for ld testsuite */
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
.text :
{
*(.text)
*(.after1)
*(.after2)
*(.after3)
*(.after4)
*(.after5)
} =0
}

20
ld/testsuite/ld-arm/data-only-map.s Normal file
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@ -0,0 +1,20 @@
.syntax unified
.thumb
.global _start
_start:
add.w r0, r1, r2
.section .after1
.word 0xeb010002
.section .after2
add.w r0, r1, r2
.section .after3
add.w r2, r1, r0
.section .after4
.word 0xeb010002
.section .after5
.word 0xeb010002