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authorYury Usishchev <y.usishchev@samsung.com>2015-12-22 15:50:13 +0000
committerNick Clifton <nickc@redhat.com>2015-12-22 15:50:13 +0000
commit491d01d3da18fb61fa6c7c61c091b4cb8c5773f7 (patch)
tree4f325fdc33925c18aa4db39125a2f91ef8d39e7c /bfd/elf-bfd.h
parent4abd5ed2221c826bcb843794286777452de5c50b (diff)
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ARM: Fix exidx coverage for relocatable builds.
bfd * elf-bfd.h: Add callback to count additional relocations. * elf32-arm.c (_arm_elf_section_data): Add new counter. (insert_cantunwind_after): Increment relocations counter. (elf32_arm_fix_exidx_coverage): Remove exidx entries and add terminating CANTUNWIND entry only in final builds. (elf32_arm_add_relocation): New function. (elf32_arm_write_section): Add relocations in relocatable builds. (elf32_arm_count_additional_relocs): New function. (elf_backend_count_additional_relocs): New define. * bfd/elflink.c (bfd_elf_final_link): Use callback and adjust size of .rel section. * bfd/elfxx-target.h (elf_backend_count_additional_relocs): New define. ld * emultempl/armelf.em (gld${EMULATION_NAME}_after_allocation): Call elf32_arm_fix_exidx_coverage for relocatable builds. ld/testsuite * ld-arm/arm-elf.exp: New test. * ld-arm/unwind-rel.d: New file. * ld-arm/unwind-rel1.s: New file. * ld-arm/unwind-rel2.s: New file. * ld-arm/unwind-rel3.s: New file.
Diffstat (limited to 'bfd/elf-bfd.h')
-rw-r--r--bfd/elf-bfd.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 70e3327..129aa64 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1170,6 +1170,11 @@ struct elf_backend_data
unsigned int (*elf_backend_count_relocs)
(struct bfd_link_info *, asection *);
+ /* Count additionals relocations. Called for relocatable links if
+ additional relocations needs to be created. */
+ unsigned int (*elf_backend_count_additional_relocs)
+ (asection *);
+
/* Say whether to sort relocs output by ld -r and ld --emit-relocs,
by r_offset. If NULL, default to true. */
bfd_boolean (*sort_relocs_p)