Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
tools include linux: Guard against redefinition of some macros
When cross building to android r15c (and older versions) on Fedora 26
we notice these:
/opt/android-ndk-r15c/platforms/android-24/arch-arm/usr/include/sys/cdefs.h:332:0: note: this is the location of the previous definition
For __aligned, __packed and __noreturn, so guard those with ifdefs to
avoid drowning useful warnings in these.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-d7w3fa9c22dtmrwbedos6ie1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+6
-3
tools/include/linux/compiler-gcc.h
+6
-3
tools/include/linux/compiler-gcc.h
···
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#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
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#define noinline __attribute__((noinline))
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-
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+
#ifndef __packed
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#define __packed __attribute__((packed))
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-
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+
#endif
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+
#ifndef __noreturn
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#define __noreturn __attribute__((noreturn))
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-
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+
#endif
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+
#ifndef __aligned
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#define __aligned(x) __attribute__((aligned(x)))
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+
#endif
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#define __printf(a, b) __attribute__((format(printf, a, b)))
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#define __scanf(a, b) __attribute__((format(scanf, a, b)))