2.5-18.1

3 files changed, 54 insertions, 36 deletions

diff --git a/nptl/sysdeps/sparc/sparc32/jmpbuf-unwind.h b/nptl/sysdeps/sparc/sparc32/jmpbuf-unwind.h
deleted file mode 100644
index 5cef8b1cf5..0000000000
--- a/nptl/sysdeps/sparc/sparc32/jmpbuf-unwind.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <setjmp.h>
-#include <stdint.h>
-#include <unwind.h>
-
-#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
-  _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
-
-#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
-  ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_SP] - (_adj))
-
-/* We use the normal lobngjmp for unwinding.  */
-#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/nptl/sysdeps/sparc/tcb-offsets.sym b/nptl/sysdeps/sparc/tcb-offsets.sym
index 237f975b25..923af8a5b7 100644
--- a/nptl/sysdeps/sparc/tcb-offsets.sym
+++ b/nptl/sysdeps/sparc/tcb-offsets.sym
@@ -2,5 +2,6 @@
 #include <tls.h>
 
 MULTIPLE_THREADS_OFFSET		offsetof (tcbhead_t, multiple_threads)
+POINTER_GUARD			offsetof (tcbhead_t, pointer_guard)
 PID				offsetof (struct pthread, pid)
 TID				offsetof (struct pthread, tid)
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h
index 8980f9fc0c..a008f29055 100644
--- a/nptl/sysdeps/sparc/tls.h
+++ b/nptl/sysdeps/sparc/tls.h
@@ -1,5 +1,5 @@
 /* Definitions for thread-local data handling.  NPTL/sparc version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,6 +22,7 @@
 
 #include <dl-sysdep.h>
 #ifndef __ASSEMBLER__
+# include <stdbool.h>
 # include <stddef.h>
 # include <stdint.h>
 # include <stdlib.h>
@@ -31,7 +32,11 @@
 typedef union dtv
 {
   size_t counter;
-  void *pointer;
+  struct
+  {
+    void *val;
+    bool is_static;
+  } pointer;
 } dtv_t;
 
 typedef struct
@@ -41,6 +46,9 @@ typedef struct
   dtv_t *dtv;
   void *self;
   int multiple_threads;
+  uintptr_t sysinfo;
+  uintptr_t stack_guard;
+  uintptr_t pointer_guard;
 } tcbhead_t;
 
 #else /* __ASSEMBLER__ */
@@ -64,11 +72,13 @@ typedef struct
 
 register struct pthread *__thread_self __asm__("%g7");
 
-/* This is the size of the initial TCB.  */
-# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+/* This is the size of the initial TCB.  Can't be just sizeof (tcbhead_t),
+   because NPTL getpid, __libc_alloca_cutoff etc. need (almost) the whole
+   struct pthread even when not linked with -lpthread.  */
+# define TLS_INIT_TCB_SIZE sizeof (struct pthread)
 
 /* Alignment requirements for the initial TCB.  */
-# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
 
 /* This is the size of the TCB.  */
 # define TLS_TCB_SIZE sizeof (struct pthread)
@@ -119,6 +129,44 @@ register struct pthread *__thread_self __asm__("%g7");
 #define THREAD_SETMEM_NC(descr, member, idx, value) \
   descr->member[idx] = (value)
 
+/* Set the stack guard field in TCB head.  */
+#define THREAD_SET_STACK_GUARD(value) \
+  THREAD_SETMEM (THREAD_SELF, header.stack_guard, value)
+# define THREAD_COPY_STACK_GUARD(descr) \
+  ((descr)->header.stack_guard \
+   = THREAD_GETMEM (THREAD_SELF, header.stack_guard))
+
+/* Get/set the stack guard field in TCB head.  */
+#define THREAD_GET_POINTER_GUARD() \
+  THREAD_GETMEM (THREAD_SELF, header.pointer_guard)
+#define THREAD_SET_POINTER_GUARD(value) \
+  THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value)
+# define THREAD_COPY_POINTER_GUARD(descr) \
+  ((descr)->header.pointer_guard = THREAD_GET_POINTER_GUARD ())
+
+/* Get and set the global scope generation counter in struct pthread.  */
+#define THREAD_GSCOPE_FLAG_UNUSED 0
+#define THREAD_GSCOPE_FLAG_USED   1
+#define THREAD_GSCOPE_FLAG_WAIT   2
+#define THREAD_GSCOPE_RESET_FLAG() \
+  do									     \
+    { int __res								     \
+	= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag,	     \
+			       THREAD_GSCOPE_FLAG_UNUSED);		     \
+      if (__res == THREAD_GSCOPE_FLAG_WAIT)				     \
+	lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1);		     \
+    }									     \
+  while (0)
+#define THREAD_GSCOPE_SET_FLAG() \
+  do									     \
+    {									     \
+      THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED;	     \
+      atomic_write_barrier ();						     \
+    }									     \
+  while (0)
+#define THREAD_GSCOPE_WAIT() \
+  GL(dl_wait_lookup_done) ()
+
 #endif /* !ASSEMBLER */
 
 #endif	/* tls.h */