diff options
Diffstat (limited to 'ldso/dynlink.c')
| -rw-r--r-- | ldso/dynlink.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ldso/dynlink.c b/ldso/dynlink.c index 63e7b81f..cea5f452 100644 --- a/ldso/dynlink.c +++ b/ldso/dynlink.c @@ -134,6 +134,9 @@ static struct dso *const nodeps_dummy; struct debug *_dl_debug_addr = &debug; __attribute__((__visibility__("hidden"))) +extern int __malloc_replaced; + +__attribute__((__visibility__("hidden"))) void (*const __init_array_start)(void)=0, (*const __fini_array_start)(void)=0; __attribute__((__visibility__("hidden"))) @@ -1691,6 +1694,12 @@ _Noreturn void __dls3(size_t *sp) if (ldso_fail) _exit(127); if (ldd_mode) _exit(0); + /* Determine if malloc was interposed by a replacement implementation + * so that calloc and the memalign family can harden against the + * possibility of incomplete replacement. */ + if (find_sym(head, "malloc", 1).dso != &ldso) + __malloc_replaced = 1; + /* Switch to runtime mode: any further failures in the dynamic * linker are a reportable failure rather than a fatal startup * error. */ |