Patrick Georgi has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32814
Change subject: build system: Add various compiler flags that enable warnings on UB ......................................................................
build system: Add various compiler flags that enable warnings on UB
Some types of Undefined Behavior can be determined statically at compile time and gcc now has a set of flags that make it emit warnings in that case instead of doing the __builtin_trap() / optimize / UD2-opcode dance that silently breaks the resulting binary.
Change-Id: I3aa5ca00c9838cc7517160069310a1ef85372027 Signed-off-by: Patrick Georgi pgeorgi@google.com --- M Makefile.inc 1 file changed, 2 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/14/32814/1
diff --git a/Makefile.inc b/Makefile.inc index 9860da1..f2e010c 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -410,6 +410,8 @@ ifeq ($(CCC_ANALYZER_OUTPUT_FORMAT),) CFLAGS_common += -Wno-packed-not-aligned CFLAGS_common += -fconserve-stack +CFLAGS_common += -pedantic-errors -Wnull-dereference +CFLAGS_common += -Wno-aggressive-loop-optimizations -Wreturn-type # cf. commit f69a99db (coreboot: x86: enable gc-sections) CFLAGS_common += -Wno-unused-but-set-variable endif