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| author | Shihua <shihua@iscas.ac.cn> | 2022-09-20 17:45:04 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson@rivosinc.com> | 2022-09-21 11:43:35 +0800 |
| commit | 96462b012988d35ebb1137a2ad9fd0a96547d79a (patch) | |
| tree | 8e820046375df2c8c492e665dcbed2576728894d /bfd/elfnn-riscv.c | |
| parent | 70f35d72ef04cd23771875c1661c9975044a749c (diff) | |
| download | gdb-96462b012988d35ebb1137a2ad9fd0a96547d79a.zip gdb-96462b012988d35ebb1137a2ad9fd0a96547d79a.tar.gz gdb-96462b012988d35ebb1137a2ad9fd0a96547d79a.tar.bz2 | |
RISC-V: Implement Ztso extension
This patch support ZTSO extension. It will turn on the tso flag for elf_flags
once we have enabled Ztso extension. This is intended to implement v0.1 of
the proposed specification which can be found in Chapter 25 of,
https://github.com/riscv/riscv-isa-manual/releases/download/draft-20220723-10eea63/riscv-spec.pdf.
bfd\ChangeLog:
* elfnn-riscv.c (_bfd_riscv_elf_merge_private_bfd_data): Set TSO flag.
* elfxx-riscv.c: Add Ztso's arch.
binutils\ChangeLog:
* readelf.c (get_machine_flags): Set TSO flag.
gas\ChangeLog:
* config/tc-riscv.c (riscv_set_tso): Ditto.
(riscv_set_arch): Ditto.
* testsuite/gas/riscv/ztso.d: New test.
include\ChangeLog:
* elf/riscv.h (EF_RISCV_TSO): Ditto.
Diffstat (limited to 'bfd/elfnn-riscv.c')
| -rw-r--r-- | bfd/elfnn-riscv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/bfd/elfnn-riscv.c b/bfd/elfnn-riscv.c index 0e0a0b0..3d2ddf4 100644 --- a/bfd/elfnn-riscv.c +++ b/bfd/elfnn-riscv.c @@ -3872,6 +3872,9 @@ _bfd_riscv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) /* Allow linking RVC and non-RVC, and keep the RVC flag. */ elf_elfheader (obfd)->e_flags |= new_flags & EF_RISCV_RVC; + /* Allow linking TSO and non-TSO, and keep the TSO flag. */ + elf_elfheader (obfd)->e_flags |= new_flags & EF_RISCV_TSO; + return true; fail: |