On Tue, Jan 06, 2026 at 11:39:55AM +0100, Thomas Weißschuh wrote:
Since LLVM commit 39e30508a7f6 ("[Driver][Sparc] Default to -mcpu=v9 for 32-bit Linux/sparc64 (#109278)"), clang defaults to -mcpu=v9 for 32-bit SPARC builds. -mcpu=v9 generates instructions which are not recognized by qemu-sparc and qemu-system-sparc.
Explicitly enforce -mcpu=v8 to generate compatible code.
Signed-off-by: Thomas Weißschuh linux@weissschuh.net
Changes in v2:
- Use -mcpu=v8
- Link to v1: https://patch.msgid.link/20260104-nolibc-sparc32-fix-v1-1-e341b06cbdb7@weiss...
tools/testing/selftests/nolibc/Makefile.nolibc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/nolibc/Makefile.nolibc b/tools/testing/selftests/nolibc/Makefile.nolibc index b17ba2f8fb46..f5704193038f 100644 --- a/tools/testing/selftests/nolibc/Makefile.nolibc +++ b/tools/testing/selftests/nolibc/Makefile.nolibc @@ -226,7 +226,7 @@ CFLAGS_mipsn32be = -EB -mabi=n32 -march=mips64r6 CFLAGS_mips64le = -EL -mabi=64 -march=mips64r6 CFLAGS_mips64be = -EB -mabi=64 -march=mips64r2 CFLAGS_loongarch = $(if $(LLVM),-fuse-ld=lld) -CFLAGS_sparc32 = $(call cc-option,-m32) +CFLAGS_sparc32 = $(call cc-option,-m32) -mcpu=v8 CFLAGS_sh4 = -ml -m4 ifeq ($(origin XARCH),command line) CFLAGS_XARCH = $(CFLAGS_$(XARCH))
Thank you Thomas!
Acked-by: Willy Tarreau w@1wt.eu
willy