diff options
Diffstat (limited to 'malloc')
| -rw-r--r-- | malloc/arena.c | 17 | ||||
| -rw-r--r-- | malloc/malloc.c | 6 |
2 files changed, 22 insertions, 1 deletions
diff --git a/malloc/arena.c b/malloc/arena.c index 00f40971f3..9018a4f0e9 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -339,7 +339,16 @@ ptmalloc_init_minimal (void) mp_.pagesize = malloc_getpagesize; } + #ifdef _LIBC +# ifdef SHARED +static void * +__failing_morecore (ptrdiff_t d) +{ + return (void *) MORECORE_FAILURE; +} +# endif + # if defined SHARED && defined USE_TLS && !USE___THREAD # include <stdbool.h> @@ -419,6 +428,14 @@ ptmalloc_init (void) mutex_init(&main_arena.mutex); main_arena.next = &main_arena; +#if defined _LIBC && defined SHARED + /* In case this libc copy is in a non-default namespace, never use brk. */ + Dl_info di; + struct link_map *l; + if (_dl_addr (ptmalloc_init, &di, &l, NULL) != 0 && l->l_ns != LM_ID_BASE) + __morecore = __failing_morecore; +#endif + mutex_init(&list_lock); tsd_key_create(&arena_key, NULL); tsd_setspecific(arena_key, (Void_t *)&main_arena); diff --git a/malloc/malloc.c b/malloc/malloc.c index ad6009a198..2e91952a26 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -289,9 +289,13 @@ extern "C" { /* For writev and struct iovec. */ #include <sys/uio.h> - /* For syslog. */ +/* For syslog. */ #include <sys/syslog.h> +/* For various dynamic linking things. */ +#include <dlfcn.h> + + /* Debugging: |