Use (anonymous) mmap() when available.
Should fix (SELinux related segfault)
@@ -82,8 +82,11 @@ static int mprotect(void *buffer, size_t len, int prot)
return 0 != VirtualProtect(buffer, len, newProt, &oldProt);
}
-#endif // _WIN32
-
+#else
+# ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+# endif
+#endif
#define PAGE_SIZE 4096
@@ -163,7 +166,7 @@ static struct trampoline_set *alloc_trampolines(char *start, char *end)
#if _WIN32
metadata->buffers = VirtualAlloc(NULL, sizeof(struct trampoline_buffers), MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
#else
- posix_memalign((void **)&metadata->buffers, getpagesize(), sizeof(struct trampoline_buffers));
+ metadata->buffers = mmap(NULL, sizeof(struct trampoline_buffers), PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
#endif
for (int i=0 ; i<HEADERS_PER_PAGE ; i++)
{
