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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-22 15:40:37 +0100 |
|---|---|---|
| committer | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-23 15:59:56 +0100 |
| commit | 4a07fbb689eeec30e7d71a0d144c26e0d1e424ac (patch) | |
| tree | 85d53e165fb64b144ce9ac3018cd90afdd70bf4f /sysdeps/nptl | |
| parent | d1babeb32de5dae8893c640bd925357b218d846c (diff) | |
| download | glibc-4a07fbb689eeec30e7d71a0d144c26e0d1e424ac.tar.gz glibc-4a07fbb689eeec30e7d71a0d144c26e0d1e424ac.tar.xz glibc-4a07fbb689eeec30e7d71a0d144c26e0d1e424ac.zip | |
Use C11 atomics instead of atomic_decrement_and_test
Replace atomic_decrement_and_test with atomic_fetch_add_relaxed. These are simple counters which do not protect any shared data from concurrent accesses. Also remove the unused file cond-perf.c. Passes regress on AArch64. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/nptl')
| -rw-r--r-- | sysdeps/nptl/libc_start_call_main.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/nptl/libc_start_call_main.h b/sysdeps/nptl/libc_start_call_main.h index a9e85f2b09..c10a16b2c4 100644 --- a/sysdeps/nptl/libc_start_call_main.h +++ b/sysdeps/nptl/libc_start_call_main.h @@ -65,7 +65,7 @@ __libc_start_call_main (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL), /* One less thread. Decrement the counter. If it is zero we terminate the entire process. */ result = 0; - if (! atomic_decrement_and_test (&__nptl_nthreads)) + if (atomic_fetch_add_relaxed (&__nptl_nthreads, -1) != 1) /* Not much left to do but to exit the thread, not the process. */ while (1) INTERNAL_SYSCALL_CALL (exit, 0); |