When building against older kernel headers, currently the tm-syscall
test fails to build because PPC_FEATURE2_HTM_NOSC is not defined.
Tweak the test so that if PPC_FEATURE2_HTM_NOSC is not defined it still
builds, but prints a warning at run time and marks the test as skipped.
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
tools/testing/selftests/powerpc/tm/tm-syscall.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall.c
b/tools/testing/selftests/powerpc/tm/tm-syscall.c
index 1276e23da63b..e835bf7ec7ae 100644
--- a/tools/testing/selftests/powerpc/tm/tm-syscall.c
+++ b/tools/testing/selftests/powerpc/tm/tm-syscall.c
@@ -77,13 +77,23 @@ pid_t getppid_tm(bool suspend)
exit(-1);
}
+static inline bool have_htm_nosc(void)
+{
+#ifdef PPC_FEATURE2_HTM_NOSC
+ return ((long)get_auxv_entry(AT_HWCAP2) & PPC_FEATURE2_HTM_NOSC);
+#else
+ printf("PPC_FEATURE2_HTM_NOSC not defined, can't check AT_HWCAP2\n");
+ return false;
+#endif
+}
+
int tm_syscall(void)
{
unsigned count = 0;
struct timeval end, now;
- SKIP_IF(!((long)get_auxv_entry(AT_HWCAP2)
- & PPC_FEATURE2_HTM_NOSC));
+ SKIP_IF(!have_htm_nosc());
+
setbuf(stdout, NULL);
printf("Testing transactional syscalls for %d seconds...\n",
TEST_DURATION);
--
2.1.4
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