diff options
| author | Wang Nan <wangnan0@huawei.com> | 2016-09-26 10:26:55 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-06 01:58:51 +0300 |
| commit | f61bdc3304281e9ff9eec4f1ed9fb15bcf4d8a5e (patch) | |
| tree | 039e05791992e7c49ceadfbf52535f4d7ecef481 /tools/build | |
| parent | 2ad8327fd0013ee07f056d28faddc2e7f01dd127 (diff) | |
| download | linux-f61bdc3304281e9ff9eec4f1ed9fb15bcf4d8a5e.tar.xz | |
tools build: Support compiling C++ source file
Add new rule to compile .cpp file to .o use g++. C++ support is required
for built-in clang and LLVM support.
Linker side support will be introduced by following commits.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1474874832-134786-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build')
| -rw-r--r-- | tools/build/Build.include | 1 | ||||
| -rw-r--r-- | tools/build/Makefile.build | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/tools/build/Build.include b/tools/build/Build.include index 02489380d79b..1dcb95e76f70 100644 --- a/tools/build/Build.include +++ b/tools/build/Build.include @@ -90,6 +90,7 @@ if_changed = $(if $(strip $(any-prereq) $(arg-check)), \ # - per object C flags # - BUILD_STR macro to allow '-D"$(variable)"' constructs c_flags = -Wp,-MD,$(depfile),-MT,$@ $(CFLAGS) -D"BUILD_STR(s)=\#s" $(CFLAGS_$(basetarget).o) $(CFLAGS_$(obj)) +cxx_flags = -Wp,-MD,$(depfile),-MT,$@ $(CXXFLAGS) -D"BUILD_STR(s)=\#s" $(CXXFLAGS_$(basetarget).o) $(CXXFLAGS_$(obj)) ### ## HOSTCC C flags diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build index 190519a94ce5..99c0ccd2f176 100644 --- a/tools/build/Makefile.build +++ b/tools/build/Makefile.build @@ -61,6 +61,9 @@ quiet_cmd_cc_o_c = CC $@ quiet_cmd_host_cc_o_c = HOSTCC $@ cmd_host_cc_o_c = $(HOSTCC) $(host_c_flags) -c -o $@ $< +quiet_cmd_cxx_o_c = CXX $@ + cmd_cxx_o_c = $(CXX) $(cxx_flags) -c -o $@ $< + quiet_cmd_cpp_i_c = CPP $@ cmd_cpp_i_c = $(CC) $(c_flags) -E -o $@ $< @@ -88,6 +91,10 @@ $(OUTPUT)%.o: %.c FORCE $(call rule_mkdir) $(call if_changed_dep,$(host)cc_o_c) +$(OUTPUT)%.o: %.cpp FORCE + $(call rule_mkdir) + $(call if_changed_dep,cxx_o_c) + $(OUTPUT)%.o: %.S FORCE $(call rule_mkdir) $(call if_changed_dep,$(host)cc_o_c) |