- Normalize arch string would help the multi-lib handling, e.g. rv64gc and
rv64g_c are both valid and same arch, but latter one would confuse
the detection of multi-lib, earlier normalize can resolve this issue.
gcc/ChangeLog:
* config/riscv/riscv.h (DRIVER_SELF_SPECS): New.
---
gcc/config/riscv/riscv.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/gcc/config/riscv/riscv.h b/gcc/config/riscv/riscv.h
index 6119e6350620..1f2fe7e10e05 100644
--- a/gcc/config/riscv/riscv.h
+++ b/gcc/config/riscv/riscv.h
@@ -68,6 +68,10 @@ extern const char *riscv_expand_arch (int argc, const char
**argv);
%{mabi=*} \
%(subtarget_asm_spec)"
+#undef DRIVER_SELF_SPECS
+#define DRIVER_SELF_SPECS \
+"%{march=*:-march=%:riscv_expand_arch(%*)}"
+
#define TARGET_DEFAULT_CMODEL CM_MEDLOW
#define LOCAL_LABEL_PREFIX "."
--
2.27.0
