Updated to fedora-glibc-20050627T0850

5 files changed, 51 insertions, 8 deletions

diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h
index c0331140f4..65566ff7a7 100644
--- a/nptl/sysdeps/i386/tls.h
+++ b/nptl/sysdeps/i386/tls.h
@@ -49,6 +49,7 @@ typedef struct
   void *self;		/* Pointer to the thread descriptor.  */
   int multiple_threads;
   uintptr_t sysinfo;
+  uintptr_t stack_guard;
 } tcbhead_t;
 
 # define TLS_MULTIPLE_THREADS_IN_TCB 1
@@ -416,6 +417,14 @@ union user_desc_init
      __res; })
 
 
+/* 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))
+
+
 #endif /* __ASSEMBLER__ */
 
 #endif	/* tls.h */
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h
index a7f69074e9..b2322b09bd 100644
--- a/nptl/sysdeps/powerpc/tls.h
+++ b/nptl/sysdeps/powerpc/tls.h
@@ -65,11 +65,11 @@ typedef union dtv
 /* Get the thread descriptor definition.  */
 # include <nptl/descr.h>
 
-/* This layout is actually wholly private and not affected by the ABI.
-   Nor does it overlap the pthread data structure, so we need nothing
-   extra here at all.  */
+/* The stack_guard is accessed directly by GCC -fstack-protector code,
+   so it is a part of public ABI.  The dtv field is private.  */
 typedef struct
 {
+  uintptr_t stack_guard;
   dtv_t *dtv;
 } tcbhead_t;
 
@@ -127,7 +127,7 @@ register void *__thread_register __asm__ ("r13");
 
 /* Return the address of the dtv for the current thread.  */
 # define THREAD_DTV() \
-     (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET))[-1].dtv)
+    (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET))[-1].dtv)
 
 /* Return the thread descriptor for the current thread.  */
 # define THREAD_SELF \
@@ -136,9 +136,9 @@ register void *__thread_register __asm__ ("r13");
 
 /* Magic for libthread_db to know how to do THREAD_SELF.  */
 # define DB_THREAD_SELF							      \
-  REGISTER (32, 32, PT_THREAD_POINTER * 4,					      \
+  REGISTER (32, 32, PT_THREAD_POINTER * 4,				      \
 	    - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)			      \
-  REGISTER (64, 64, PT_THREAD_POINTER * 8,					      \
+  REGISTER (64, 64, PT_THREAD_POINTER * 8,				      \
 	    - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
 
 /* Read member of the thread descriptor directly.  */
@@ -156,6 +156,16 @@ register void *__thread_register __asm__ ("r13");
 # define THREAD_SETMEM_NC(descr, member, idx, value) \
     ((void)(descr), (THREAD_SELF)->member[idx] = (value))
 
+/* Set the stack guard field in TCB head.  */
+# define THREAD_SET_STACK_GUARD(value) \
+    (((tcbhead_t *) ((char *) __thread_register				      \
+		     - TLS_TCB_OFFSET))[-1].stack_guard = (value))
+# define THREAD_COPY_STACK_GUARD(descr) \
+    (((tcbhead_t *) ((char *) (descr)					      \
+		     + TLS_PRE_TCB_SIZE))[-1].stack_guard		      \
+     = ((tcbhead_t *) ((char *) __thread_register			      \
+		       - TLS_TCB_OFFSET))[-1].stack_guard)
+
 /* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some
    different value to mean unset l_tls_offset.  */
 # define NO_TLS_OFFSET		-1
diff --git a/nptl/sysdeps/s390/tls.h b/nptl/sysdeps/s390/tls.h
index 060dde39df..f90b35b1e5 100644
--- a/nptl/sysdeps/s390/tls.h
+++ b/nptl/sysdeps/s390/tls.h
@@ -48,9 +48,8 @@ typedef struct
   dtv_t *dtv;
   void *self;		/* Pointer to the thread descriptor.  */
   int multiple_threads;
-# ifdef NEED_DL_SYSINFO
   uintptr_t sysinfo;
-# endif
+  uintptr_t stack_guard;
 } tcbhead_t;
 
 # ifndef __s390x__
@@ -158,6 +157,13 @@ typedef struct
 #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))
+
 #endif /* __ASSEMBLER__ */
 
 #endif	/* tls.h */
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h
index 54b54859d9..ddc4848554 100644
--- a/nptl/sysdeps/sparc/tls.h
+++ b/nptl/sysdeps/sparc/tls.h
@@ -46,6 +46,8 @@ typedef struct
   dtv_t *dtv;
   void *self;
   int multiple_threads;
+  uintptr_t sysinfo;
+  uintptr_t stack_guard;
 } tcbhead_t;
 
 #else /* __ASSEMBLER__ */
@@ -126,6 +128,13 @@ 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))
+
 #endif /* !ASSEMBLER */
 
 #endif	/* tls.h */
diff --git a/nptl/sysdeps/x86_64/tls.h b/nptl/sysdeps/x86_64/tls.h
index 3fc9b384aa..516827b8e1 100644
--- a/nptl/sysdeps/x86_64/tls.h
+++ b/nptl/sysdeps/x86_64/tls.h
@@ -47,6 +47,8 @@ typedef struct
   dtv_t *dtv;
   void *self;		/* Pointer to the thread descriptor.  */
   int multiple_threads;
+  uintptr_t sysinfo;
+  uintptr_t stack_guard;
 } tcbhead_t;
 
 #else /* __ASSEMBLER__ */
@@ -320,6 +322,13 @@ typedef struct
      __res; })
 
 
+/* 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))
+
 #endif /* __ASSEMBLER__ */
 
 #endif	/* tls.h */