commit 4d55129aea65ac23a34b9053f3f1ee4d92883032
author Joe Fradley <joefradley@google.com> Tue Nov 22 14:54:49 2022 -0800
committer Ulises Mendez Martinez <umendez@google.com> Fri May 10 12:38:46 2024 +0000
tree 6d3205e30581f85eff01d02196d48ad64804f7d6
parent cf685d2b02734245c3e179f3541f67ae3feee796

UPSTREAM: 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.

Change-Id: Icbb1ed0e1b99f1cb0a21ea7a2920b3edce70c38d
Signed-off-by: Joe Fradley <joefradley@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit c390c452ebeb44cb979b7374d3acc3859415e86c)

arch/x86/crypto/Makefile

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 3b1d701..3e7a329 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -107,3 +107,6 @@
       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