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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 /ld/testsuite/ld-riscv-elf | |
| 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 'ld/testsuite/ld-riscv-elf')
| -rw-r--r-- | ld/testsuite/ld-riscv-elf/attr-phdr.d | 19 | ||||
| -rw-r--r-- | ld/testsuite/ld-riscv-elf/attr-phdr.s | 9 | ||||
| -rw-r--r-- | ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp | 1 |
3 files changed, 29 insertions, 0 deletions
diff --git a/ld/testsuite/ld-riscv-elf/attr-phdr.d b/ld/testsuite/ld-riscv-elf/attr-phdr.d new file mode 100644 index 0000000..43f2ea5 --- /dev/null +++ b/ld/testsuite/ld-riscv-elf/attr-phdr.d @@ -0,0 +1,19 @@ +#name: PT_RISCV_ATTRIBUTES check +#source: attr-phdr.s +#as: -march=rv32ic +#ld: -m[riscv_choose_ilp32_emul] +#readelf: -l + +Elf file type is EXEC \(Executable file\) +Entry point .* +There are .* program headers, starting at offset .* + +Program Headers: + Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align + RISCV_ATTRIBUT .* + LOAD .* + + Section to Segment mapping: + Segment Sections... + 00 .riscv.attributes + 01 .text diff --git a/ld/testsuite/ld-riscv-elf/attr-phdr.s b/ld/testsuite/ld-riscv-elf/attr-phdr.s new file mode 100644 index 0000000..f075248 --- /dev/null +++ b/ld/testsuite/ld-riscv-elf/attr-phdr.s @@ -0,0 +1,9 @@ + .attribute arch, "rv32i2p0_m2p0" + .option nopic + .text + .align 1 + .globl _start + .type _start, @function +_start: + ret + .size _start, .-_start diff --git a/ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp b/ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp index 1f1245a..1f6eceb 100644 --- a/ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp +++ b/ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp @@ -112,6 +112,7 @@ if [istarget "riscv*-*-*"] { run_dump_test "attr-merge-priv-spec-failed-04" run_dump_test "attr-merge-priv-spec-failed-05" run_dump_test "attr-merge-priv-spec-failed-06" + run_dump_test "attr-phdr" run_ld_link_tests [list \ [list "Weak reference 32" "-T weakref.ld -m[riscv_choose_ilp32_emul]" "" \ "-march=rv32i -mabi=ilp32" {weakref32.s} \ |