From d78efd9f369a8fc46229fc9224e10e3781eecc43 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Wed, 1 Mar 2006 06:18:49 +0000
Subject: * elf/tst-tls-dlinfo.c: New file.

	* elf/Makefile (tests): Add it.
	($(objpfx)tst-tls-dlinfo): Depend on $(libdl).
	($(objpfx)tst-tls-dlinfo.out): Depend on $(objpfx)tst-tlsmod2.so.

	* dlfcn/dlfcn.h (RTLD_DI_PROFILENAME, RTLD_DI_PROFILEOUT): New enum
	values, reserve unsupported requested names used on Solaris.
	(RTLD_DI_TLS_MODID, RTLD_DI_TLS_DATA): New enum values.
	(RTLD_DI_MAX): Likewise.
	* dlfcn/dlinfo.c (dlinfo_doit): Handle RTLD_DI_TLS_MODID and
	RTLD_DI_TLS_DATA.

	* elf/dl-tls.c (_dl_tls_get_addr_soft): New function.
	* sysdeps/generic/ldsodefs.h: Declare it.
	* elf/Versions (ld: GLIBC_PRIVATE): Add it.
	* elf/link.h (struct dl_phdr_info): New members dlpi_tls_modid,
	dlpi_tls_data.
	* elf/dl-iteratephdr.c (__dl_iterate_phdr): Fill them in.

	* include/link.h: Don't copy contents from elf/link.h.
	Instead, #include it while #define'ing around link_map.
	* elf/dl-debug.c (_dl_debug_initialize): Add a cast.
	Add bogus extern decl to verify link_map members.
	* elf/loadtest.c (MAPS): New macro, cast _r_debug._r_map.
	(OUT, main): Use it in place of _r_debug._r_map.
	* elf/unload.c: Likewise.
	* elf/unload2.c: Likewise.
	* elf/neededtest.c (check_loaded_objects): Likewise.
	* elf/neededtest2.c (check_loaded_objects): Likewise.
	* elf/neededtest3.c (check_loaded_objects): Likewise.
	* elf/neededtest4.c (check_loaded_objects): Likewise.
	* elf/circleload1.c (check_loaded_objects): Likewise.
---
 elf/tst-tls-dlinfo.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 elf/tst-tls-dlinfo.c

(limited to 'elf/tst-tls-dlinfo.c')

diff --git a/elf/tst-tls-dlinfo.c b/elf/tst-tls-dlinfo.c
new file mode 100644
index 0000000000..e97b5081fd
--- /dev/null
+++ b/elf/tst-tls-dlinfo.c
@@ -0,0 +1,92 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <tls.h>
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+#ifdef USE_TLS
+  static const char modname[] = "tst-tlsmod2.so";
+  int result = 0;
+  int *foop;
+  int (*fp) (int, int *);
+  void *h;
+
+  h = dlopen (modname, RTLD_LAZY);
+  if (h == NULL)
+    {
+      printf ("cannot open '%s': %s\n", modname, dlerror ());
+      exit (1);
+    }
+
+  fp = dlsym (h, "in_dso");
+  if (fp == NULL)
+    {
+      printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
+      exit (1);
+    }
+
+  size_t modid = -1;
+  if (dlinfo (h, RTLD_DI_TLS_MODID, &modid))
+    {
+      printf ("dlinfo RTLD_DI_TLS_MODID failed: %s\n", dlerror ());
+      result = 1;
+    }
+  else
+    printf ("dlinfo says TLS module ID %Zu\n", modid);
+
+  void *block;
+  if (dlinfo (h, RTLD_DI_TLS_DATA, &block))
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA failed: %s\n", dlerror ());
+      result = 1;
+    }
+  else if (block != NULL)
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be unallocated\n",
+	      block);
+      result = 1;
+    }
+
+  result |= fp (0, NULL);
+
+  foop = dlsym (h, "foo");
+  if (foop == NULL)
+    {
+      printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
+      exit (1);
+    }
+  if (*foop != 16)
+    {
+      puts ("foo != 16");
+      result = 1;
+    }
+
+  /* Now the module's TLS block has been used and should appear.  */
+  if (dlinfo (h, RTLD_DI_TLS_DATA, &block))
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA failed the second time: %s\n",
+	      dlerror ());
+      result = 1;
+    }
+  else if (block != foop)
+    {
+      printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be %p\n",
+	      block, foop);
+      result = 1;
+    }
+
+  dlclose (h);
+
+  return result;
+#else
+  return 0;
+#endif
+}
+
+
+#include "../test-skeleton.c"
-- 
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