diff options
Diffstat (limited to 'libgcc/libgcov.c')
| -rw-r--r-- | libgcc/libgcov.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/libgcc/libgcov.c b/libgcc/libgcov.c index d75ae69..fd04fb1 100644 --- a/libgcc/libgcov.c +++ b/libgcc/libgcov.c @@ -30,6 +30,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #include "coretypes.h" #include "tm.h" #include "libgcc_tm.h" +#include "gthr.h" #if defined(inhibit_libc) #define IN_LIBGCOV (-1) @@ -705,6 +706,25 @@ __gcov_init (struct gcov_info *info) info->version = 0; } +#ifdef __GTHREAD_MUTEX_INIT +ATTRIBUTE_HIDDEN __gthread_mutex_t __gcov_flush_mx = __GTHREAD_MUTEX_INIT; +#define init_mx_once() +#else +__gthread_mutex_t __gcov_flush_mx ATTRIBUTE_HIDDEN; + +static void +init_mx (void) +{ + __GTHREAD_MUTEX_INIT_FUNCTION (&mx); +} +static void +init_mx_once (void) +{ + static __gthread_once_t once = __GTHREAD_ONCE_INIT; + __gthread_once (&once, init_mx); +} +#endif + /* Called before fork or exec - write out profile information gathered so far and reset it to zero. This avoids duplication or loss of the profile information gathered so far. */ @@ -714,6 +734,9 @@ __gcov_flush (void) { const struct gcov_info *gi_ptr; + init_mx_once (); + __gthread_mutex_lock (&__gcov_flush_mx); + gcov_exit (); for (gi_ptr = gcov_list; gi_ptr; gi_ptr = gi_ptr->next) { @@ -737,6 +760,8 @@ __gcov_flush (void) } } } + + __gthread_mutex_unlock (&__gcov_flush_mx); } #endif /* L_gcov */ @@ -975,8 +1000,13 @@ __gcov_ior_profiler (gcov_type *counters, gcov_type value) pid_t __gcov_fork (void) { + pid_t pid; + extern __gthread_mutex_t __gcov_flush_mx; __gcov_flush (); - return fork (); + pid = fork (); + if (pid == 0) + __GTHREAD_MUTEX_INIT_FUNCTION (&__gcov_flush_mx); + return pid; } #endif |