diff options
| author | Rebecca Cran <rebecca@quicinc.com> | 2023-02-16 09:34:32 -0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-04-05 15:44:48 +0000 |
| commit | 728ff1da339695ac73e7731d1b5f1d912ab01142 (patch) | |
| tree | a80ed4b473a44f4dc3d07737f3ecbb09036835e1 /BaseTools/Source/C/Makefiles/header.makefile | |
| parent | 206168e83f0901cbc1815ef5df4ac6598ad9721b (diff) | |
| download | edk2-728ff1da339695ac73e7731d1b5f1d912ab01142.tar.gz | |
BaseTools: Allow users to build with clang using CC=clang CXX=clang++
In https://bugzilla.tianocore.org/show_bug.cgi?id=2842 clang support was
added by having users specify "make CXX=llvm" when building BaseTools.
The Makefile then sees that and sets CC=$(CLANG_BIN)clang and
CXX=$(CLANG_BIN)clang++. That requires that the executables 'clang' and
'clang++' exist and for example aren't named 'clang-17' and
'clang++-17'. Also, it's an unusual way of specifying the compiler,
since many users will expect to be able to override CC and CXX on the
make command line.
Rework the BaseTools Makefiles removing the 'BUILD_' prefix (BUILD_CC
and BUILD_CXX) and using the standard name 'LDFLAGS' instead of
'LFLAGS'. This allows clang to be used by running
'make -C BaseTools CC=clang CXX=clang++'.
Signed-off-by: Rebecca Cran <rebecca@quicinc.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Diffstat (limited to 'BaseTools/Source/C/Makefiles/header.makefile')
| -rw-r--r-- | BaseTools/Source/C/Makefiles/header.makefile | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/BaseTools/Source/C/Makefiles/header.makefile b/BaseTools/Source/C/Makefiles/header.makefile index 0fb315a25a..bcc2791998 100644 --- a/BaseTools/Source/C/Makefiles/header.makefile +++ b/BaseTools/Source/C/Makefiles/header.makefile @@ -44,18 +44,19 @@ endif CYGWIN:=$(findstring CYGWIN, $(shell uname -s))
LINUX:=$(findstring Linux, $(shell uname -s))
DARWIN:=$(findstring Darwin, $(shell uname -s))
-ifeq ($(CXX), llvm)
+CLANG:=$(shell $(CC) --version | grep clang)
+ifneq ($(CLANG),)
CC ?= $(CLANG_BIN)clang
CXX ?= $(CLANG_BIN)clang++
AS ?= $(CLANG_BIN)clang
AR ?= $(CLANG_BIN)llvm-ar
LD ?= $(CLANG_BIN)llvm-ld
-else
-CC ?= gcc
-CXX ?= g++
-AS ?= gcc
-AR ?= ar
-LD ?= ld
+else ifeq ($(origin CC),default)
+CC = gcc
+CXX = g++
+AS = gcc
+AR = ar
+LD = ld
endif
LINKER ?= $(CC)
ifeq ($(HOST_ARCH), IA32)
@@ -91,7 +92,7 @@ ifeq ($(DARWIN),Darwin) CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror \
-Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result -nostdlib -g
else
-ifeq ($(CXX), llvm)
+ifneq ($(CLANG),)
CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -fwrapv \
-fno-delete-null-pointer-checks -Wall -Werror \
-Wno-deprecated-declarations -Wno-self-assign \
@@ -103,7 +104,7 @@ CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -fwrapv \ -Wno-unused-result -nostdlib -g
endif
endif
-ifeq ($(CXX), llvm)
+ifneq ($(CLANG),)
LDFLAGS =
CXXFLAGS = -Wno-deprecated-register -Wno-unused-result
else
|