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authorFlorian Weimer <fweimer@redhat.com>2016-06-10 10:46:05 +0200
committerFlorian Weimer <fweimer@redhat.com>2016-06-10 10:46:05 +0200
commit2ba3cfa1607c36613f3b30fb1ae4ec530245ce64 (patch)
tree4c215fe75ef1c016943e36821137257480097e01 /include
parentf00faa4a43706d85ad8d4d2c970d3f52f0f63bfb (diff)
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malloc: Remove __malloc_initialize_hook from the API [BZ #19564]
__malloc_initialize_hook is interposed by application code, so the usual approach to define a compatibility symbol does not work. This commit adds a new mechanism based on #pragma GCC poison in <stdc-predef.h>.
Diffstat (limited to 'include')
-rw-r--r--include/stdc-predef.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/stdc-predef.h b/include/stdc-predef.h
index f9f7f73..52cf8d1 100644
--- a/include/stdc-predef.h
+++ b/include/stdc-predef.h
@@ -57,4 +57,11 @@
/* We do not support C11 <threads.h>. */
#define __STDC_NO_THREADS__ 1
+/* Remove symbols from the API which can be interposed. */
+#if defined (__GNUC__)
+# if __GNUC__ >= 4
+# pragma GCC poison __malloc_initialize_hook
+# endif /* __GNUC__ >= 4 */
+#endif /* __GNUC__ */
+
#endif