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selftests/powerpc: Add a helper for checking if we're on ppc64le

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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>
This commit is contained in:
Michael Ellerman 2018-07-26 22:24:57 +10:00
parent 7cd129b4b5
commit 95f9b3af40
2 changed files with 19 additions and 0 deletions
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2
tools/testing/selftests/powerpc/include/utils.h
View File

@ -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 { \

17
tools/testing/selftests/powerpc/utils.c
View File

@ -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;
}