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tools/perf/build: Split out feature check: 'volatile-register-var' 

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-5dOevlybbwvbk3zTbcxrrqet@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2013-09-30 13:58:12 +02:00
parent 430be5ab0a
commit c25104452d
3 changed files with 12 additions and 1 deletions
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3
tools/perf/config/Makefile
View File

@ -105,6 +105,7 @@ FEATURE_TESTS = \
hello \
stackprotector-all \
stackprotector \
volatile-register-var \
libnuma
$(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@ -117,7 +118,7 @@ ifeq ($(feature-stackprotector), 1)
CFLAGS += -Wstack-protector
endif
ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wvolatile-register-var,-Wvolatile-register-var),y)
ifeq ($(feature-volatile-register-var), 1)
CFLAGS += -Wvolatile-register-var
endif

4
tools/perf/config/feature-checks/Makefile
View File

@ -3,6 +3,7 @@ FILES= \
test-hello \
test-stackprotector-all \
test-stackprotector \
test-volatile-register-var \
test-libnuma
CC := $(CC) -MD
@ -22,6 +23,9 @@ test-stackprotector-all:
test-stackprotector:
$(BUILD) -Werror -fstack-protector
test-volatile-register-var:
$(BUILD) -Werror -Wvolatile-register-var
test-libnuma:
$(BUILD) -lnuma

6
tools/perf/config/feature-checks/test-volatile-register-var.c Normal file
View File

@ -0,0 +1,6 @@
#include <stdio.h>
int main(void)
{
return puts("hi");
}