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authorRoland McGrath <roland@gnu.org>2006-03-19 07:48:05 +0000
committerRoland McGrath <roland@gnu.org>2006-03-19 07:48:05 +0000
commitcafdfdb65b38a14653854c3f6b535235614e0b3e (patch)
tree0fedb701658f8f39f07e73d620082deabfb0e1f6 /elf/tst-audit2.c
parent1903f2ec29d8f29ae55ac1d7172862e418e80183 (diff)
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* elf/rtld.c (dl_main): Run final self-relocation after setting up TLS.
From Alexandre Oliva <aoliva@redhat.com>. * elf/tst-audit2.c: New file. * elf/Makefile (tests): Add it. ($(objpfx)tst-audit2.out): New target. (tst-audit2-ENV): New variable. * elf/tst-leaks1.c: Include <stdio.h>.
Diffstat (limited to 'elf/tst-audit2.c')
-rw-r--r--elf/tst-audit2.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/elf/tst-audit2.c b/elf/tst-audit2.c
new file mode 100644
index 0000000000..fd089b6f64
--- /dev/null
+++ b/elf/tst-audit2.c
@@ -0,0 +1,50 @@
+/* Test case for early TLS initialization in dynamic linker. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if HAVE___THREAD
+# define MAGIC1 0xabcdef72
+# define MAGIC2 0xd8675309
+static __thread unsigned int magic[] = { MAGIC1, MAGIC2 };
+#endif
+
+#undef calloc
+
+/* This calloc definition will be called by the dynamic linker itself.
+ We test that it has initialized our TLS block by the time it does so. */
+
+void *
+calloc (size_t n, size_t m)
+{
+#if HAVE___THREAD
+ if (magic[0] != MAGIC1 || magic[1] != MAGIC2)
+ {
+ printf ("{%x, %x} != {%x, %x}\n", magic[0], magic[1], MAGIC1, MAGIC2);
+ abort ();
+ }
+ magic[0] = MAGIC2;
+ magic[1] = MAGIC1;
+#endif
+
+ n *= m;
+ void *ptr = malloc (n);
+ if (ptr != NULL)
+ memset (ptr, '\0', n);
+ return ptr;
+}
+
+int
+main (void)
+{
+#if HAVE___THREAD
+ if (magic[1] != MAGIC1 || magic[0] != MAGIC2)
+ {
+ printf ("{%x, %x} != {%x, %x}\n", magic[0], magic[1], MAGIC2, MAGIC1);
+ return 1;
+ }
+#endif
+
+ return 0;
+}