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| author | Tsukasa OI <research_trasio@irq.a4lg.com> | 2023-07-24 05:01:12 +0000 |
|---|---|---|
| committer | Tsukasa OI <research_trasio@irq.a4lg.com> | 2023-07-24 23:42:35 +0000 |
| commit | 766f6d170c56d1d7b03e81f64d069386d0a7c5dd (patch) | |
| tree | bb3300ea74d92af8092c7fded0ec45a8a8c84ae0 /bfd/elfxx-riscv.c | |
| parent | 6badd1020f5bebd3f60a780b8e41a1b581046087 (diff) | |
| download | gdb-766f6d170c56d1d7b03e81f64d069386d0a7c5dd.zip gdb-766f6d170c56d1d7b03e81f64d069386d0a7c5dd.tar.gz gdb-766f6d170c56d1d7b03e81f64d069386d0a7c5dd.tar.bz2 | |
RISC-V: Prohibit the 'Zcf' extension on RV64
As per:
<https://github.com/riscv/riscv-code-size-reduction/issues/221>,
the 'Zcf' extension does not exist on RV64. This is reflected on the
version 1.0.4-1 of the code size reduction specification:
<https://github.com/riscv/riscv-code-size-reduction/releases/tag/v1.0.4-1>.
This commit prohibits the combination: RV64 (or any ISA with XLEN > 32)
and the 'Zcf' extension.
bfd/ChangeLog:
* elfxx-riscv.c (riscv_parse_check_conflicts): Prohibit
combination of RV64 and 'Zcf'.
gas/ChangeLog:
* testsuite/gas/riscv/march-fail-rv64i_zcf.d: New test.
* testsuite/gas/riscv/march-fail-rv64i_zcf.l: Likewise.
Diffstat (limited to 'bfd/elfxx-riscv.c')
| -rw-r--r-- | bfd/elfxx-riscv.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c index ee96608..eaf4966 100644 --- a/bfd/elfxx-riscv.c +++ b/bfd/elfxx-riscv.c @@ -1946,6 +1946,13 @@ riscv_parse_check_conflicts (riscv_parse_subset_t *rps) rps->error_handler (_("rv%d does not support the `q' extension"), xlen); no_conflict = false; } + if (riscv_lookup_subset (rps->subset_list, "zcf", &subset) + && xlen > 32) + { + rps->error_handler + (_("rv%d does not support the `zcf' extension"), xlen); + no_conflict = false; + } if (riscv_lookup_subset (rps->subset_list, "zfinx", &subset) && riscv_lookup_subset (rps->subset_list, "f", &subset)) { |