Author: andrew
Date: Mon Feb 4 16:55:24 2019
New Revision: 343746
URL: https://svnweb.freebsd.org/changeset/base/343746
Log:
Only enable trace-cmp on Clang and modern GCC.
It's was only added to GCC 8.1 so don't try to enable it for earlier
releases.
Reported by: lwhsu
Sponsored by: DARPA, AFRL
Modified:
head/sys/conf/files
head/sys/conf/kern.pre.mk
Modified: head/sys/conf/files
==============================================================================
--- head/sys/conf/files Mon Feb 4 16:13:41 2019 (r343745)
+++ head/sys/conf/files Mon Feb 4 16:55:24 2019 (r343746)
@@ -3808,7 +3808,7 @@ kern/kern_idle.c standard
kern/kern_intr.c standard
kern/kern_jail.c standard
kern/kern_kcov.c optional kcov \
- compile-with "${NORMAL_C}
-fno-sanitize-coverage=trace-pc,trace-cmp"
+ compile-with "${NORMAL_C} -fno-sanitize=all"
kern/kern_khelp.c standard
kern/kern_kthread.c standard
kern/kern_ktr.c optional ktr
Modified: head/sys/conf/kern.pre.mk
==============================================================================
--- head/sys/conf/kern.pre.mk Mon Feb 4 16:13:41 2019 (r343745)
+++ head/sys/conf/kern.pre.mk Mon Feb 4 16:55:24 2019 (r343746)
@@ -120,7 +120,12 @@ SAN_CFLAGS+= -fsanitize=undefined
COVERAGE_ENABLED!= grep COVERAGE opt_global.h || true ; echo
.if !empty(COVERAGE_ENABLED)
+.if ${COMPILER_TYPE} == "clang" || \
+ (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 80100)
SAN_CFLAGS+= -fsanitize-coverage=trace-pc,trace-cmp
+.else
+SAN_CFLAGS+= -fsanitize-coverage=trace-pc
+.endif
.endif
CFLAGS+= ${SAN_CFLAGS}
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