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#
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# Patch provided by Ulrich Drepper in BZ#919562.
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#
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# Patch has not been sent upstream.
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#
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# 2013-03-08  Ulrich Drepper  <drepper@gmail.com>
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#
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#	* elf/rtld.c (dl_main): Correctly determine when the application
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#	required DSOs with TLS and bump the generation counter in that
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#	case.  The current condition does not account for an audit
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#	module using TLS.
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#	* elf/dl-tls.c (_dl_count_modids): New function.
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#	(_dl_allocate_tls_init): Add assertion to check TLS
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#	generation.
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#	* sysdeps/generic/ldsodefs.h: Declare _dl_count_modids.
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#	* elf/Makefile: Add rules to build and run tst-audit9.
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#	* elf/tst-audit9.c: New file.
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#	* elf/tst-auditmod9a.c: New file.
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#	* elf/tst-auditmod9b.c: New file.
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#
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diff -urN glibc-2.12-2-gc4ccff1.orig/elf/dl-tls.c glibc-2.12-2-gc4ccff1/elf/dl-tls.c
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--- glibc-2.12-2-gc4ccff1.orig/elf/dl-tls.c	2013-04-24 16:06:10.410756438 -0400
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+++ glibc-2.12-2-gc4ccff1/elf/dl-tls.c	2013-04-24 16:06:49.092604707 -0400
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@@ -109,6 +109,28 @@
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 }
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+size_t
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+internal_function
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+_dl_count_modids (void)
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+{
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+  if (! __builtin_expect (GL(dl_tls_dtv_gaps), true))
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+    return GL(dl_tls_max_dtv_idx);
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+
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+  size_t n = 0;
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+  struct dtv_slotinfo_list *runp = GL(dl_tls_dtv_slotinfo_list);
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+  while (runp != NULL)
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+    {
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+      for (size_t i = 0; i < runp->len; ++i)
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+	if (runp->slotinfo[i].map != NULL)
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+	  ++n;
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+
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+      runp = runp->next;
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+    }
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+
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+  return n;
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+}
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+
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+
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 #ifdef SHARED
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 void
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 internal_function
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@@ -411,6 +433,7 @@
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 	  /* Keep track of the maximum generation number.  This might
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 	     not be the generation counter.  */
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+	  assert (listp->slotinfo[cnt].gen <= GL(dl_tls_generation));
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 	  maxgen = MAX (maxgen, listp->slotinfo[cnt].gen);
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 	  if (map->l_tls_offset == NO_TLS_OFFSET
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diff -urN glibc-2.12-2-gc4ccff1.orig/elf/Makefile glibc-2.12-2-gc4ccff1/elf/Makefile
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--- glibc-2.12-2-gc4ccff1.orig/elf/Makefile	2013-04-24 16:06:10.408756448 -0400
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+++ glibc-2.12-2-gc4ccff1/elf/Makefile	2013-04-24 16:07:29.475457962 -0400
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@@ -198,7 +200,7 @@
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 	 tst-dlmodcount tst-dlopenrpath tst-deep1 \
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 	 tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
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 	 unload3 unload4 unload5 unload6 unload7 unload8 tst-global1 order2 \
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-	 tst-audit1 tst-audit2 tst-audit8 \
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+	 tst-audit1 tst-audit2 tst-audit8 tst-audit9 \
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 	 tst-stackguard1 tst-addr1 tst-thrlock \
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 	 tst-unique1 tst-unique2 tst-unique3 tst-unique4 \
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 	 tst-initorder tst-initorder2 tst-relsort1
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@@ -251,7 +253,8 @@
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 		unload8mod1 unload8mod1x unload8mod2 unload8mod3 \
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 		order2mod1 order2mod2 order2mod3 order2mod4 \
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 		tst-unique1mod1 tst-unique1mod2 \
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-		tst-unique2mod1 tst-unique2mod2 \
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+		tst-unique2mod1 tst-unique2mod2 \
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+		tst-auditmod9a tst-auditmod9b \
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 		tst-unique3lib tst-unique3lib2 \
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 		tst-unique4lib \
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 		tst-initordera1 tst-initorderb1 \
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@@ -574,6 +577,8 @@
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 ifuncmod1.so-no-z-defs = yes
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 ifuncmod5.so-no-z-defs = yes
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 ifuncmod6.so-no-z-defs = yes
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+tst-auditmod9a.so-no-z-defs = yes
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+tst-auditmod9b.so-no-z-defs = yes
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 ifeq ($(build-shared),yes)
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 # Build all the modules even when not actually running test programs.
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@@ -1015,6 +1020,10 @@
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 $(objpfx)tst-audit7.out: $(objpfx)tst-auditmod7b.so
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 tst-audit7-ENV = LD_AUDIT=$(objpfx)tst-auditmod7b.so
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+$(objpfx)tst-audit9: $(libdl)
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+$(objpfx)tst-audit9.out: $(objpfx)tst-auditmod9a.so $(objpfx)tst-auditmod9b.so
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+tst-audit9-ENV = LD_AUDIT=$(objpfx)tst-auditmod9a.so
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+
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 $(objpfx)tst-audit8: $(common-objpfx)math/libm.so
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 $(objpfx)tst-audit8.out: $(objpfx)tst-auditmod1.so
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 tst-audit8-ENV = LD_AUDIT=$(objpfx)tst-auditmod1.so
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diff -urN glibc-2.12-2-gc4ccff1.orig/elf/rtld.c glibc-2.12-2-gc4ccff1/elf/rtld.c
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--- glibc-2.12-2-gc4ccff1.orig/elf/rtld.c	2013-04-24 16:06:10.410756438 -0400
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+++ glibc-2.12-2-gc4ccff1/elf/rtld.c	2013-04-24 16:06:49.096604693 -0400
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@@ -1637,6 +1637,10 @@
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 	}
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     }
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+  /* Keep track of the currently loaded modules to count how many
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+     non-audit modules which use TLS are loaded.  */
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+  size_t count_modids = _dl_count_modids ();
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+
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   /* Set up debugging before the debugger is notified for the first time.  */
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 #ifdef ELF_MACHINE_DEBUG_SETUP
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   /* Some machines (e.g. MIPS) don't use DT_DEBUG in this way.  */
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@@ -2281,7 +2285,8 @@
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 # define NONTLS_INIT_TP do { } while (0)
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 #endif
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-  if (!was_tls_init_tp_called && GL(dl_tls_max_dtv_idx) > 0)
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+  if ((!was_tls_init_tp_called && GL(dl_tls_max_dtv_idx) > 0)
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+      || count_modids != _dl_count_modids ())
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     ++GL(dl_tls_generation);
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   /* Now that we have completed relocation, the initializer data
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diff -urN glibc-2.12-2-gc4ccff1.orig/elf/tst-audit9.c glibc-2.12-2-gc4ccff1/elf/tst-audit9.c
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--- glibc-2.12-2-gc4ccff1.orig/elf/tst-audit9.c	1969-12-31 19:00:00.000000000 -0500
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+++ glibc-2.12-2-gc4ccff1/elf/tst-audit9.c	2013-04-24 16:06:49.096604693 -0400
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@@ -0,0 +1,8 @@
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+#include <dlfcn.h>
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+
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+int main(void)
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+{
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+  void *h = dlopen("$ORIGIN/tst-auditmod9b.so", RTLD_LAZY);
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+  int (*fp)(void) = dlsym(h, "f");
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+  return fp() - 1;
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+}
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diff -urN glibc-2.12-2-gc4ccff1.orig/elf/tst-auditmod9a.c glibc-2.12-2-gc4ccff1/elf/tst-auditmod9a.c
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--- glibc-2.12-2-gc4ccff1.orig/elf/tst-auditmod9a.c	1969-12-31 19:00:00.000000000 -0500
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+++ glibc-2.12-2-gc4ccff1/elf/tst-auditmod9a.c	2013-04-24 16:06:49.097604689 -0400
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@@ -0,0 +1,16 @@
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+#include <stdint.h>
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+
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+__thread int var;
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+
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+unsigned int
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+la_version (unsigned int v)
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+{
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+  return v;
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+}
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+
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+void
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+la_activity (uintptr_t *cookie, unsigned int flag)
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+{
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+  ++var;
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+}
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+
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diff -urN glibc-2.12-2-gc4ccff1.orig/elf/tst-auditmod9b.c glibc-2.12-2-gc4ccff1/elf/tst-auditmod9b.c
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--- glibc-2.12-2-gc4ccff1.orig/elf/tst-auditmod9b.c	1969-12-31 19:00:00.000000000 -0500
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+++ glibc-2.12-2-gc4ccff1/elf/tst-auditmod9b.c	2013-04-24 16:06:49.097604689 -0400
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@@ -0,0 +1,6 @@
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+__thread int a;
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+
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+int f(void)
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+{
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+  return ++a;
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+}
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diff -urN glibc-2.12-2-gc4ccff1.orig/sysdeps/generic/ldsodefs.h glibc-2.12-2-gc4ccff1/sysdeps/generic/ldsodefs.h
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--- glibc-2.12-2-gc4ccff1.orig/sysdeps/generic/ldsodefs.h	2013-04-24 16:06:10.545755798 -0400
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+++ glibc-2.12-2-gc4ccff1/sysdeps/generic/ldsodefs.h	2013-04-24 16:06:49.098604686 -0400
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@@ -1031,6 +1031,9 @@
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 /* Determine next available module ID.  */
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 extern size_t _dl_next_tls_modid (void) internal_function attribute_hidden;
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+/* Count the modules with TLS segments.  */
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+extern size_t _dl_count_modids (void) internal_function attribute_hidden;
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+
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 /* Calculate offset of the TLS blocks in the static TLS block.  */
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 extern void _dl_determine_tlsoffset (void) internal_function attribute_hidden;
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