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authorJoe Fradley <joefradley@google.com>2022-11-22 14:54:49 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2022-12-02 18:12:40 +0800
commitc390c452ebeb44cb979b7374d3acc3859415e86c (patch)
tree6c787e65b7af87dfb7efc5aef346346e6313c0f1
parent3d780c8a9850ad60dee47a8d971ba7888f3d1bd3 (diff)
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crypto: x86/curve25519 - disable gcov
curve25519-x86_64.c fails to build when CONFIG_GCOV_KERNEL is enabled. The error is "inline assembly requires more registers than available" thrown from the `fsqr()` function. Therefore, excluding this file from GCOV profiling until this issue is resolved. Thereby allowing CONFIG_GCOV_PROFILE_ALL to be enabled for x86. Signed-off-by: Joe Fradley <joefradley@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--arch/x86/crypto/Makefile3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 3b1d701a4f6c..3e7a329235bd 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -107,3 +107,6 @@ quiet_cmd_perlasm = PERLASM $@
cmd_perlasm = $(PERL) $< > $@
$(obj)/%.S: $(src)/%.pl FORCE
$(call if_changed,perlasm)
+
+# Disable GCOV in odd or sensitive code
+GCOV_PROFILE_curve25519-x86_64.o := n