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| author | David Carrillo-Cisneros <davidcc@google.com> | 2017-08-27 00:54:40 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-08-28 16:44:46 -0300 |
| commit | 3866058ef15b6ae6f4ff48e088428b46bcc43fa1 (patch) | |
| tree | 821ab268db308660fd5aaf91b47103e8316df132 | |
| parent | 12024aacb0170779cd0b976b06d2e9b1767cf142 (diff) | |
| download | lwn-3866058ef15b6ae6f4ff48e088428b46bcc43fa1.tar.gz lwn-3866058ef15b6ae6f4ff48e088428b46bcc43fa1.zip | |
perf tools: Robustify detection of clang binary
Prior to this patch, make scripts tested for CLANG with ifeq ($(CC),
clang), failing to detect CLANG binaries with different names. Fix it by
testing for the existence of __clang__ macro in the list of compiler
defined macros.
Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Paul Turner <pjt@google.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20170827075442.108534-5-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/lib/api/Makefile | 2 | ||||
| -rw-r--r-- | tools/lib/subcmd/Makefile | 2 | ||||
| -rw-r--r-- | tools/perf/Makefile.config | 4 | ||||
| -rw-r--r-- | tools/perf/util/intel-pt-decoder/Build | 2 | ||||
| -rw-r--r-- | tools/scripts/Makefile.include | 4 |
5 files changed, 8 insertions, 6 deletions
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile index 2538675731c7..4563ba7ede6f 100644 --- a/tools/lib/api/Makefile +++ b/tools/lib/api/Makefile @@ -19,7 +19,7 @@ LIBFILE = $(OUTPUT)libapi.a CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC -ifeq ($(CC), clang) +ifeq ($(CC_NO_CLANG), 0) CFLAGS += -O3 else CFLAGS += -O6 diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile index 3d1c3b5b5150..7e9f03c97e4c 100644 --- a/tools/lib/subcmd/Makefile +++ b/tools/lib/subcmd/Makefile @@ -21,7 +21,7 @@ LIBFILE = $(OUTPUT)libsubcmd.a CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC -ifeq ($(CC), clang) +ifeq ($(CC_NO_CLANG), 0) CFLAGS += -O3 else CFLAGS += -O6 diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 6a64c6bbd9a5..63f534a0902f 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -148,7 +148,7 @@ ifndef DEBUG endif ifeq ($(DEBUG),0) -ifeq ($(CC), clang) +ifeq ($(CC_NO_CLANG), 0) CFLAGS += -O3 else CFLAGS += -O6 @@ -184,7 +184,7 @@ ifdef PYTHON_CONFIG PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null) - ifeq ($(CC), clang) + ifeq ($(CC_NO_CLANG), 1) PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS)) endif FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) diff --git a/tools/perf/util/intel-pt-decoder/Build b/tools/perf/util/intel-pt-decoder/Build index 7aca5d6d7e1f..10e0814bb8d2 100644 --- a/tools/perf/util/intel-pt-decoder/Build +++ b/tools/perf/util/intel-pt-decoder/Build @@ -25,6 +25,6 @@ $(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/in CFLAGS_intel-pt-insn-decoder.o += -I$(OUTPUT)util/intel-pt-decoder -ifneq ($(CC), clang) +ifeq ($(CC_NO_CLANG), 1) CFLAGS_intel-pt-insn-decoder.o += -Wno-override-init endif diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index ccad8ce925e4..1e8b6116ba3c 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -39,7 +39,9 @@ EXTRA_WARNINGS += -Wundef EXTRA_WARNINGS += -Wwrite-strings EXTRA_WARNINGS += -Wformat -ifneq ($(CC), clang) +CC_NO_CLANG := $(shell $(CC) -dM -E -x c /dev/null | grep -Fq "__clang__"; echo $$?) + +ifeq ($(CC_NO_CLANG), 1) EXTRA_WARNINGS += -Wstrict-aliasing=3 endif |