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| author | Jojo R <rjiejie@linux.alibaba.com> | 2022-07-14 00:28:09 +0800 |
|---|---|---|
| committer | Jojo R <rjiejie@linux.alibaba.com> | 2022-11-04 10:30:18 +0800 |
| commit | 853ba67882805f415c9816ca13d738295cf54f48 (patch) | |
| tree | a6b9c55e2d4d7a40c4c904e395a84d3d4cbef98b /gas/dw2gencfi.h | |
| parent | a494349e806417d4dc7d217500225e515a777811 (diff) | |
| download | gdb-853ba67882805f415c9816ca13d738295cf54f48.zip gdb-853ba67882805f415c9816ca13d738295cf54f48.tar.gz gdb-853ba67882805f415c9816ca13d738295cf54f48.tar.bz2 | |
Support multiple .eh_frame sections
This patch is based on MULTIPLE_FRAME_SECTIONS and EH_FRAME_LINKONCE,
it allows backend to enable this feature and use '--gc-sections' simply.
* gas/dw2gencfi.h (TARGET_MULTIPLE_EH_FRAME_SECTIONS): New.
(MULTIPLE_FRAME_SECTIONS): Add TARGET_MULTIPLE_EH_FRAME_SECTIONS.
* gas/dw2gencfi.c (EH_FRAME_LINKONCE): Add TARGET_MULTIPLE_EH_FRAME_SECTIONS.
(is_now_linkonce_segment): Likewise.
(get_cfi_seg): Create relocation info between .eh_frame.* and .text.* section.
* bfd/elf-bfd.h (elf_backend_can_make_multiple_eh_frame): New.
* bfd/elfxx-target.h (elf_backend_can_make_multiple_eh_frame): Likewise.
* bfd/elflink.c (_bfd_elf_default_action_discarded): Add checking for
elf_backend_can_make_multiple_eh_frame.
Diffstat (limited to 'gas/dw2gencfi.h')
| -rw-r--r-- | gas/dw2gencfi.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gas/dw2gencfi.h b/gas/dw2gencfi.h index d570cdb..0f5ae77 100644 --- a/gas/dw2gencfi.h +++ b/gas/dw2gencfi.h @@ -66,7 +66,12 @@ extern void cfi_add_CFA_restore_state (void); #define SUPPORT_COMPACT_EH 0 #endif -#define MULTIPLE_FRAME_SECTIONS (SUPPORT_FRAME_LINKONCE || SUPPORT_COMPACT_EH) +#ifndef TARGET_MULTIPLE_EH_FRAME_SECTIONS +#define TARGET_MULTIPLE_EH_FRAME_SECTIONS 0 +#endif + +#define MULTIPLE_FRAME_SECTIONS (SUPPORT_FRAME_LINKONCE || SUPPORT_COMPACT_EH \ + || TARGET_MULTIPLE_EH_FRAME_SECTIONS) struct cfi_insn_data { |