[PATCH 1/3] selftests/powerpc: Add a helper for checking if we're on ppc64le
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STALE2986d
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2018-07-26 12:25:06
Subsystem:
kernel selftest framework, the rest · Maintainers:
Shuah Khan, Shuah Khan, Linus Torvalds
Some of our selftests have only been tested on ppc64le and crash or behave weirdly on ppc64/ppc32. So add a helper for checking the UTS machine. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- tools/testing/selftests/powerpc/include/utils.h | 2 ++ tools/testing/selftests/powerpc/utils.c | 17 +++++++++++++++++ 2 files changed, 19 insertions(+)
diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h
index 735815b3ad7f..c58c370828b4 100644
--- a/tools/testing/selftests/powerpc/include/utils.h
+++ b/tools/testing/selftests/powerpc/include/utils.h@@ -48,6 +48,8 @@ static inline bool have_hwcap2(unsigned long ftr2) } #endif +bool is_ppc64le(void); + /* Yes, this is evil */ #define FAIL_IF(x) \ do { \
diff --git a/tools/testing/selftests/powerpc/utils.c b/tools/testing/selftests/powerpc/utils.c
index d46916867a6f..aa8fc1e6365b 100644
--- a/tools/testing/selftests/powerpc/utils.c
+++ b/tools/testing/selftests/powerpc/utils.c@@ -11,8 +11,10 @@ #include <link.h> #include <sched.h> #include <stdio.h> +#include <string.h> #include <sys/stat.h> #include <sys/types.h> +#include <sys/utsname.h> #include <unistd.h> #include "utils.h"
@@ -104,3 +106,18 @@ int pick_online_cpu(void) printf("No cpus in affinity mask?!\n"); return -1; } + +bool is_ppc64le(void) +{ + struct utsname uts; + int rc; + + errno = 0; + rc = uname(&uts); + if (rc) { + perror("uname"); + return false; + } + + return strcmp(uts.machine, "ppc64le") == 0; +}
--
2.14.1