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--- efence.c.orig 2019-02-26 17:53:52.941236000 +0100
+++ efence.c 2019-02-26 17:56:18.688752000 +0100
@@ -38,6 +38,7 @@
# include <pthread.h>
# include <semaphore.h>
#endif
+#include <errno.h>
#ifdef malloc
#undef malloc
@@ -670,6 +671,27 @@
release();
return address;
+}
+
+extern C_LINKAGE int
+posix_memalign(void **memptr, size_t alignment, size_t userSize)
+{
+ /*
+ * Per standard, posix_memalign returns EINVAL when alignment
+ * is not a power of two or power of sizeof(void*). efence
+ * doesn't check the value of alignment in memalign, but then
+ * again, memalign was never specified very well, and on some
+ * systems odd alignments could indeed have been allowed.
+ */
+ if ((alignment & (alignment - 1))
+ || alignment % sizeof (void *))
+ return EINVAL;
+
+ void *ptr = memalign (alignment, userSize);
+ if (ptr == NULL)
+ return ENOMEM;
+ *memptr = ptr;
+ return 0;
}
/*
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