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SHMEM: Fix all Linux code paths to only use shm_ APIs when available

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This commit is contained in:
Mark Pizzolato 2020-07-09 08:27:57 -07:00
parent e2d0095010
commit a73ab48c0e
1 changed files with 4 additions and 1 deletions
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5
sim_fio.c
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@ -626,12 +626,14 @@ if ((*shmem)->shm_base == MAP_FAILED) {
*addr = (*shmem)->shm_base; *addr = (*shmem)->shm_base;
return SCPE_OK; return SCPE_OK;
#else #else
*shmem = NULL;
return SCPE_NOFNC; return SCPE_NOFNC;
#endif #endif
} }
void sim_shmem_close (SHMEM *shmem) void sim_shmem_close (SHMEM *shmem)
{ {
#if defined (HAVE_SHM_OPEN)
if (shmem == NULL) if (shmem == NULL)
return; return;
if (shmem->shm_base != MAP_FAILED) if (shmem->shm_base != MAP_FAILED)
@ -642,12 +644,13 @@ if (shmem->shm_fd != -1) {
} }
free (shmem->shm_name); free (shmem->shm_name);
free (shmem); free (shmem);
#endif
} }
int32 sim_shmem_atomic_add (int32 *p, int32 v) int32 sim_shmem_atomic_add (int32 *p, int32 v)
{ {
#if defined (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) #if defined (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
return __sync_add_and_fetch((int *) p, v); return __sync_add_and_fetch ((int *) p, v);
#else #else
return *p + v; return *p + v;
#endif #endif