[PATCH v2 3/4] x86: disable llvm-cov instrumentation
From: Wentao Zhang <hidden>
Date: 2024-09-05 04:34:42
Also in:
linux-arch, linux-efi, linux-kbuild, linux-um, lkml, llvm
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Disable instrumentation for arch/x86/crypto/curve25519-x86_64.c. Otherwise
compilation would fail with "error: inline assembly requires more registers
than available".
Similar behavior was reported with gcov as well. See c390c452ebeb ("crypto:
x86/curve25519 - disable gcov").
Signed-off-by: Wentao Zhang <redacted>
Reviewed-by: Chuck Wolber <redacted>
Tested-by: Chuck Wolber <redacted>
---
arch/x86/crypto/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 53b4a2778..57f3d4921 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile@@ -119,5 +119,6 @@ quiet_cmd_perlasm = PERLASM $@ $(obj)/%.S: $(src)/%.pl FORCE $(call if_changed,perlasm) -# Disable GCOV in odd or sensitive code +# Disable GCOV and llvm-cov in odd or sensitive code GCOV_PROFILE_curve25519-x86_64.o := n +LLVM_COV_PROFILE_curve25519-x86_64.o := n
--
2.45.2