| From 165b597e3003c6870f5980e8902014d9344e6cf3 Mon Sep 17 00:00:00 2001 |
| From: Peter Xu <peterx@redhat.com> |
| Date: Thu, 1 Oct 2020 14:47:26 -0400 |
| Subject: [PATCH] rt-tests: oslat: Allow build for not supported archs |
| |
| Now rt-tests won't build for archs other than x86/i386/ppc64 after oslat is |
| merged. Instead of failing the build, let's make it pass. However, whenever |
| oslat is executed, instead of running the real program, dump an error message, |
| so that people can try to implement the frc() function for it when there's a |
| real need for the new arch. |
| |
| Upstream-Status: Backport [https://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git/commit/?id=165b597e3003c6870f5980e8902014d9344e6cf3] |
| |
| Signed-off-by: Peter Xu <peterx@redhat.com> |
| Signed-off-by: John Kacur <jkacur@redhat.com> |
| Signed-off-by: Peter Bergin <peter@berginkonsult.se> |
| |
| --- |
| src/oslat/oslat.c | 10 +++++++++- |
| 1 file changed, 9 insertions(+), 1 deletion(-) |
| |
| diff --git a/src/oslat/oslat.c b/src/oslat/oslat.c |
| index f1a82f2..a8b6155 100644 |
| --- a/src/oslat/oslat.c |
| +++ b/src/oslat/oslat.c |
| @@ -69,7 +69,9 @@ static inline void frc(uint64_t *pval) |
| __asm__ __volatile__("mfspr %0, 268\n" : "=r" (*pval)); |
| } |
| # else |
| -# error Need frc() for this platform. |
| +# define relax() do { } while (0) |
| +# define frc(x) |
| +# define FRC_MISSING |
| # endif |
| #else |
| # error Need to add support for this compiler. |
| @@ -810,6 +812,12 @@ int main(int argc, char *argv[]) |
| int i, n_cores; |
| cpu_set_t cpu_set; |
| |
| +#ifdef FRC_MISSING |
| + printf("This architecture is not yet supported. " |
| + "Please implement frc() function first for %s.\n", argv[0]); |
| + return 0; |
| +#endif |
| + |
| CPU_ZERO(&cpu_set); |
| |
| g.app_name = argv[0]; |
| -- |
| 2.25.1 |
| |