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| author | Kito Cheng <kito.cheng@sifive.com> | 2021-06-29 14:36:35 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson.chu@sifive.com> | 2021-07-06 11:34:36 +0800 |
| commit | fbc95f1e11facf233e89a9c2b4dde06b9aaf4b86 (patch) | |
| tree | 810aa9b4b50933cd6e9e7f844d15886db695fd2a /include | |
| parent | 07b2745f850232e1c2fdafb0f65ea88e6127218b (diff) | |
| download | gdb-fbc95f1e11facf233e89a9c2b4dde06b9aaf4b86.zip gdb-fbc95f1e11facf233e89a9c2b4dde06b9aaf4b86.tar.gz gdb-fbc95f1e11facf233e89a9c2b4dde06b9aaf4b86.tar.bz2 | |
RISC-V: Add PT_RISCV_ATTRIBUTES and add it to PHDR.
We added PT_RISCV_ATTRIBUTES to program header to make
.riscv.attribute easier to find in dynamic loader or kernel.
Ref:
https://github.com/riscv/riscv-elf-psabi-doc/pull/71
ChangeLog:
bfd/
* elfnn-riscv.c(RISCV_ATTRIBUTES_SECTION_NAME): New.
(riscv_elf_additional_program_headers): Ditto.
(riscv_elf_modify_segment_map): Ditto.
(elf_backend_additional_program_headers): Ditto.
(elf_backend_modify_segment_map): Ditto.
(elf_backend_obj_attrs_section): Use RISCV_ATTRIBUTES_SECTION_NAME
rather than string literal.
binutils/
* readelf.c(get_riscv_segment_type): New.
(get_segment_type): Handle EM_RISCV.
include/
* elf/riscv.h (PT_RISCV_ATTRIBUTES): New.
* testsuite/ld-elf/orphan-region.ld: Discard .riscv.attributes
section for simplify testcase.
* testsuite/ld-riscv-elf/attr-phdr.d: New.
* testsuite/ld-riscv-elf/attr-phdr.s: Ditto.
* testsuite/ld-riscv-elf/ld-riscv-elf.exp: Add attr-phdr to
testcase.
Diffstat (limited to 'include')
| -rw-r--r-- | include/elf/riscv.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/elf/riscv.h b/include/elf/riscv.h index fb376a0..8082283 100644 --- a/include/elf/riscv.h +++ b/include/elf/riscv.h @@ -120,6 +120,11 @@ END_RELOC_NUMBERS (R_RISCV_max) /* Additional section types. */ #define SHT_RISCV_ATTRIBUTES 0x70000003 /* Section holds attributes. */ +/* Processor specific program header types. */ + +/* Location of RISC-V ELF attribute section. */ +#define PT_RISCV_ATTRIBUTES 0x70000003 + /* Object attributes. */ enum { |