BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=1764
Some compiler flags restrict the compiler from making arbitrary decisions while handling undefined C/C++ behaviors. Therefore they can be used to fix some issues caused by undefined behavior. For example, for GCC, the following flags are available: -fno-delete-null-pointer-checks tells the compiler NOT to assume that null pointer deference does not exist. -fwrapv tells the compiler that signed overflow always wraps. This patch is going to add these 2 build options to BaseTool GCC build option. Signed-off-by: Bob Feng <bob.c.f...@intel.com> Cc: Liming Gao <liming....@intel.com> --- BaseTools/Source/C/Makefiles/header.makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/BaseTools/Source/C/Makefiles/header.makefile b/BaseTools/Source/C/Makefiles/header.makefile index c2397b796c..eac295b4dd 100644 --- a/BaseTools/Source/C/Makefiles/header.makefile +++ b/BaseTools/Source/C/Makefiles/header.makefile @@ -69,11 +69,12 @@ BUILD_OPTFLAGS = -O2 $(EXTRA_OPTFLAGS) ifeq ($(DARWIN),Darwin) # assume clang or clang compatible flags on OS X BUILD_CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror \ -Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result -nostdlib -g else -BUILD_CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror \ +BUILD_CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -fwrapv \ +-fno-delete-null-pointer-checks -Wall -Werror \ -Wno-deprecated-declarations -Wno-stringop-truncation -Wno-restrict \ -Wno-unused-result -nostdlib -g endif BUILD_LFLAGS = BUILD_CXXFLAGS = -Wno-unused-result -- 2.20.1.windows.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#39843): https://edk2.groups.io/g/devel/message/39843 Mute This Topic: https://groups.io/mt/31418842/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
