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- 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.
- Signed-off-by: Peter Xu <peterx@redhat.com>
- Signed-off-by: John Kacur <jkacur@redhat.com>
- [Taken from:
- https://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git/commit/src/oslat/oslat.c?h=unstable/devel/latest&id=165b597e3003c6870f5980e8902014d9344e6cf3]
- Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
- ---
- 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];
- --
- 2.20.1
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