forked from pool/glibc
26 lines
675 B
Diff
26 lines
675 B
Diff
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diff --git a/malloc/mcheck.c b/malloc/mcheck.c
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index 9213740..7491c49 100644
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--- a/malloc/mcheck.c
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+++ b/malloc/mcheck.c
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@@ -370,6 +370,12 @@ mabort (enum mcheck_status status)
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#endif
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}
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+#ifndef malloc_opt_barrier
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+#define malloc_opt_barrier(x) \
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+({ __typeof (x) __x = x; __asm ("" : "+m" (__x)); __x; })
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+#define malloc_force_eval(x) __asm __volatile ("" : : "m" (x))
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+#endif
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+
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int
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mcheck (func)
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void (*func) (enum mcheck_status);
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@@ -381,6 +387,7 @@ mcheck (func)
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{
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/* We call malloc() once here to ensure it is initialized. */
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void *p = malloc (0);
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+ p = malloc_opt_barrier (p);
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free (p);
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old_free_hook = __free_hook;
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