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| author | Steve MacLean <Steve.MacLean@Microsoft.com> | 2020-05-21 18:04:59 -0400 |
|---|---|---|
| committer | Steve MacLean <Steve.MacLean@Microsoft.com> | 2020-05-21 18:04:59 -0400 |
| commit | 45fc222a00f239a16f1420c4446113e8a730b75a (patch) | |
| tree | 780d7a25a4a94411f4769a6b6ef9d6fb5c64f794 /src/s390x | |
| parent | da8dc856ab5646e04160060aae9425db3f5428ce (diff) | |
| download | libunwind-45fc222a00f239a16f1420c4446113e8a730b75a.tar.gz | |
Use C11 atomics
Diffstat (limited to 'src/s390x')
| -rw-r--r-- | src/s390x/Gglobal.c | 6 | ||||
| -rw-r--r-- | src/s390x/Ginit_local.c | 2 | ||||
| -rw-r--r-- | src/s390x/Ginit_remote.c | 2 |
3 files changed, 5 insertions, 5 deletions
diff --git a/src/s390x/Gglobal.c b/src/s390x/Gglobal.c index e2abe89d..be49c3f6 100644 --- a/src/s390x/Gglobal.c +++ b/src/s390x/Gglobal.c @@ -31,7 +31,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "dwarf_i.h" HIDDEN define_lock (s390x_lock); -HIDDEN int tdep_init_done; +HIDDEN atomic_bool tdep_init_done = 0; /* The API register numbers are exactly the same as the .eh_frame registers, for now at least. */ @@ -81,7 +81,7 @@ tdep_init (void) lock_acquire (&s390x_lock, saved_mask); { - if (tdep_init_done) + if (atomic_load(&tdep_init_done)) /* another thread else beat us to it... */ goto out; @@ -94,7 +94,7 @@ tdep_init (void) #ifndef UNW_REMOTE_ONLY s390x_local_addr_space_init (); #endif - tdep_init_done = 1; /* signal that we're initialized... */ + atomic_store(&tdep_init_done, 1); /* signal that we're initialized... */ } out: lock_release (&s390x_lock, saved_mask); diff --git a/src/s390x/Ginit_local.c b/src/s390x/Ginit_local.c index 5eaead0f..06a7c497 100644 --- a/src/s390x/Ginit_local.c +++ b/src/s390x/Ginit_local.c @@ -43,7 +43,7 @@ unw_init_local_common (unw_cursor_t *cursor, ucontext_t *uc, unsigned use_prev_i { struct cursor *c = (struct cursor *) cursor; - if (unlikely (!tdep_init_done)) + if (unlikely (!atomic_load(&tdep_init_done))) tdep_init (); Debug (1, "(cursor=%p)\n", c); diff --git a/src/s390x/Ginit_remote.c b/src/s390x/Ginit_remote.c index efd61d64..9ab1d6df 100644 --- a/src/s390x/Ginit_remote.c +++ b/src/s390x/Ginit_remote.c @@ -36,7 +36,7 @@ unw_init_remote (unw_cursor_t *cursor, unw_addr_space_t as, void *as_arg) #else /* !UNW_LOCAL_ONLY */ struct cursor *c = (struct cursor *) cursor; - if (!tdep_init_done) + if (!atomic_load(&tdep_init_done)) tdep_init (); Debug (1, "(cursor=%p)\n", c); |