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[kvm-unit-tests,v3,1/5] riscv: Drop mstrict-align

Message ID 20240911091406.134240-8-andrew.jones@linux.dev (mailing list archive)
State New, archived
Headers show
Series Support cross compiling with clang | expand

Commit Message

Andrew Jones Sept. 11, 2024, 9:14 a.m. UTC 
The spec says unaligned accesses are supported, so this isn't required
and clang doesn't support it. A platform might have slow unaligned
accesses, but kvm-unit-tests isn't about speed anyway.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Andrew Jones <andrew.jones@linux.dev>
---
 riscv/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/riscv/Makefile b/riscv/Makefile
index 179a373dbacf..22fd273acac3 100644
--- a/riscv/Makefile
+++ b/riscv/Makefile
@@ -76,7 +76,9 @@  LDFLAGS += -melf32lriscv
 endif
 CFLAGS += -DCONFIG_RELOC
 CFLAGS += -mcmodel=medany
-CFLAGS += -mstrict-align
+# Unaligned accesses are allowed, but may be emulated by M-mode.
+# Enable -mstrict-align if that's troublesome (only supported by gcc).
+#CFLAGS += -mstrict-align
 CFLAGS += -std=gnu99
 CFLAGS += -ffreestanding
 CFLAGS += -O2