[FFmpeg-cvslog] checkasm: improve Linux perf error message

[Rémi Denis-Courmont]

ffmpeg | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Fri Jul 14 20:08:37 2023 +0300| [f25ad0fe022a8daeb654bd67e6b4433f66ee5642] | committer: Rémi Denis-Courmont

checkasm: improve Linux perf error message

Report the failing system call name, as is convention, rather than just
a rather unhelpful "syscall".

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f25ad0fe022a8daeb654bd67e6b4433f66ee5642
---

 tests/checkasm/checkasm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index 30e2dc6fed..f521d30b7c 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -667,7 +667,7 @@ static int bench_init_linux(void)
 
     state.sysfd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0);
     if (state.sysfd == -1) {
-        perror("syscall");
+        perror("perf_event_open");
         return -1;
     }
     return 0;