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Date: Tue, 4 Aug 2015 17:38:01 -0700 From: Petri Gynther <pgynther@...gle.com> To: Peter Zijlstra <a.p.zijlstra@...llo.nl>, Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org> Cc: linux-kernel@...r.kernel.org, Petri Gynther <pgynther@...gle.com> Subject: [PATCH] perf tools: Fix build errors with mipsel-linux-uclibc compiler linux/tools$ make ARCH=mips CROSS_COMPILE=mipsel-linux- perf ... config/Makefile:256: *** No gnu/libc-version.h found, please install glibc-dev[el]. Stop. make[1]: *** [all] Error 2 make: *** [perf] Error 2 ... In file included from builtin-sched.c:13:0: util/cloexec.h:8:12: error: redundant redeclaration of ‘sched_getcpu’ [-Werror=redundant-decls] extern int sched_getcpu(void) __THROW; mipsel-buildroot-linux-uclibc/sysroot/usr/include/bits/sched.h:88:12: note: previous declaration of ‘sched_getcpu’ was here extern int sched_getcpu (void) __THROW; uclibc info: sysroot/usr/include/bits/uClibc_config.h __UCLIBC_MAJOR__ 0 __UCLIBC_MINOR__ 9 __UCLIBC_SUBLEVEL__ 33 sysroot/usr/include/features.h __UCLIBC__ 1 __GLIBC__ 2 __GLIBC_MINOR__ 2 Signed-off-by: Petri Gynther <pgynther@...gle.com> --- tools/build/feature/test-glibc.c | 11 +++++++++++ tools/perf/util/cloexec.h | 2 +- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/tools/build/feature/test-glibc.c b/tools/build/feature/test-glibc.c index b082034..9367f75 100644 --- a/tools/build/feature/test-glibc.c +++ b/tools/build/feature/test-glibc.c @@ -1,8 +1,19 @@ +#include <stdlib.h> + +#if !defined(__UCLIBC__) #include <gnu/libc-version.h> +#else +#define XSTR(s) STR(s) +#define STR(s) #s +#endif int main(void) { +#if !defined(__UCLIBC__) const char *version = gnu_get_libc_version(); +#else + const char *version = XSTR(__GLIBC__) "." XSTR(__GLIBC_MINOR__); +#endif return (long)version; } diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h index 68888c2..3bee677 100644 --- a/tools/perf/util/cloexec.h +++ b/tools/perf/util/cloexec.h @@ -4,7 +4,7 @@ unsigned long perf_event_open_cloexec_flag(void); #ifdef __GLIBC_PREREQ -#if !__GLIBC_PREREQ(2, 6) +#if !__GLIBC_PREREQ(2, 6) && !defined(__UCLIBC__) extern int sched_getcpu(void) __THROW; #endif #endif -- 2.5.0.rc2.392.g76e840b -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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