Old non-mainline Linux and current non-mainline qemu-user use different syscall numbers than mainline Linux. __NR_getppid and __NR_rt_sigreturn are swapped. As the runtime environment can't be determined during compilation, sidestep the whole issue by skipping the test. Link: https://lore.kernel.org/linux-csky/2fa3151f-5aab-406c-95d9-add398ae58b3@xxxxxxxx/ Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx> --- tools/testing/selftests/nolibc/nolibc-test.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 6fba7025c5e3c002085862fdf6fa950da6000d6c..daf6a9b84a3051413cbb1d01918f745c3b83426c 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -995,7 +995,7 @@ int run_syscall(int min, int max) int tmp; int ret = 0; void *p1, *p2; - int has_gettid = 1; + int has_gettid = 1, has_getppid = 1; int has_brk; /* <proc> indicates whether or not /proc is mounted */ @@ -1009,6 +1009,11 @@ int run_syscall(int min, int max) has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30); #endif + /* qemu-user and non-mainline Linux use different syscall number */ +#if defined(__csky__) + has_getppid = 0; +#endif + /* on musl setting brk()/sbrk() always fails */ has_brk = brk(0) == 0; @@ -1020,7 +1025,7 @@ int run_syscall(int min, int max) */ switch (test + __LINE__ + 1) { CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break; - CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break; + CASE_TEST(getppid); EXPECT_SYSNE(has_getppid, getppid(), -1); break; CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break; CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break; CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break; -- 2.46.2
