about summary refs log tree commit diff
path: root/linuxthreads
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>2002-09-18 01:18:08 +0000
committerRoland McGrath <roland@gnu.org>2002-09-18 01:18:08 +0000
commit1d0ad7736265961192d5f7db11d55b49392c0936 (patch)
tree2f0beed71291665ad25cc03c572964b4d7753afc /linuxthreads
parentc843e065a1658d1a6d55a0f0b3befd200c3ec595 (diff)
downloadglibc-1d0ad7736265961192d5f7db11d55b49392c0936.tar.gz
glibc-1d0ad7736265961192d5f7db11d55b49392c0936.tar.xz
glibc-1d0ad7736265961192d5f7db11d55b49392c0936.zip
* elf/dl-lookup.c (_dl_debug_bindings): Print TLS lookups always.
	* elf/elf.h (R_386_TLS_TPOFF, R_386_TLS_IE, R_386_TLS_GOTIE,
	R_386_TLS_LE): Define.
	(R_386_TLS_IE_32, R_386_TLS_LE_32, R_386_TLS_TPOFF32): Update
	comments.
	* sysdeps/i386/dl-machine.h (elf_machine_type_class): Return
	ELF_RTYPE_CLASS_PLT for R_386_TLS_TPOFF.
	(elf_machine_rel): Handle R_386_TLS_TPOFF.
	(elf_machine_rela): Likewise.
	Remove unnecessary RTLD_BOOTSTRAP #ifdefs.
Diffstat (limited to 'linuxthreads')
-rw-r--r--linuxthreads/ChangeLog7
-rw-r--r--linuxthreads/sysdeps/i386/tls.h8
-rw-r--r--linuxthreads/sysdeps/i386/useldt.h26
3 files changed, 24 insertions, 17 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index fd23cfff66..40913b630b 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,10 @@
+2002-09-17  Roland McGrath  <roland@redhat.com>
+
+	* sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT, TLS_DO_SET_THREAD_AREA):
+	Set the descriptor limit to the full 4GB, so %gs:OFFSET works for any
+	offset (positive or negative) relative to the thread struct.
+	* sysdeps/i386/useldt.h (DO_MODIFY_LDT, DO_SET_THREAD_AREA): Likewise.
+
 2002-09-12  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Move...
diff --git a/linuxthreads/sysdeps/i386/tls.h b/linuxthreads/sysdeps/i386/tls.h
index a0c822759f..7715303d95 100644
--- a/linuxthreads/sysdeps/i386/tls.h
+++ b/linuxthreads/sysdeps/i386/tls.h
@@ -99,8 +99,8 @@ typedef struct
 #  define TLS_DO_MODIFY_LDT(descr, nr)					      \
 ({									      \
   struct modify_ldt_ldt_s ldt_entry =					      \
-    { nr, (unsigned long int) (descr), sizeof (struct _pthread_descr_struct), \
-      1, 0, 0, 0, 0, 1, 0 };						      \
+    { nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */,	      \
+      1, 0, 0, 1, 0, 1, 0 };						      \
   int result;								      \
   asm volatile (TLS_LOAD_EBX						      \
 		"int $0x80\n\t"						      \
@@ -118,8 +118,8 @@ typedef struct
 #  define TLS_DO_SET_THREAD_AREA(descr, secondcall)			      \
 ({									      \
   struct modify_ldt_ldt_s ldt_entry =					      \
-    { -1, (unsigned long int) (descr), sizeof (struct _pthread_descr_struct), \
-      1, 0, 0, 0, 0, 1, 0 };						      \
+    { -1, (unsigned long int) (descr), 0xfffff /* 4GB in pages */,	      \
+      1, 0, 0, 1, 0, 1, 0 };						      \
   int result;								      \
   if (secondcall)							      \
     ldt_entry.entry_number = ({ int _gs;				      \
diff --git a/linuxthreads/sysdeps/i386/useldt.h b/linuxthreads/sysdeps/i386/useldt.h
index 2b30cafa9e..31893b4013 100644
--- a/linuxthreads/sysdeps/i386/useldt.h
+++ b/linuxthreads/sysdeps/i386/useldt.h
@@ -11,22 +11,22 @@
 
    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
+   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; see the file COPYING.LIB.  If not,
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   Boston, MA 02111-1307, USA.	*/
 
 #ifndef __ASSEMBLER__
 #include <stddef.h>	/* For offsetof.  */
-#include <stdlib.h>	/* For abort().  */
-#include <sysdep.h>	/* For INLINE_SYSCALL.  */
+#include <stdlib.h>	/* For abort().	 */
+#include <sysdep.h>	/* For INLINE_SYSCALL.	*/
 
 
-/* We don't want to include the kernel header.  So duplicate the
-   information.  */
+/* We don't want to include the kernel header.	So duplicate the
+   information.	 */
 
 /* Structure passed on `modify_ldt' call.  */
 struct modify_ldt_ldt_s
@@ -63,13 +63,13 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
 })
 
 
-/* Initialize the thread-unique value.  Two possible ways to do it.  */
+/* Initialize the thread-unique value.	Two possible ways to do it.  */
 
 #define DO_MODIFY_LDT(descr, nr)					      \
 ({									      \
   struct modify_ldt_ldt_s ldt_entry =					      \
-    { nr, (unsigned long int) descr, sizeof (struct _pthread_descr_struct),   \
-      1, 0, 0, 0, 0, 1, 0 };						      \
+    { nr, (unsigned long int) (descr), 0xfffff /* 4GB in pages */,	      \
+      1, 0, 0, 1, 0, 1, 0 };						      \
   if (__modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0)		      \
     abort ();								      \
   asm ("movw %w0, %%gs" : : "q" (nr * 8 + 7));				      \
@@ -93,8 +93,8 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
       asm ("movw %%gs, %w0" : "=q" (__gs));				      \
       struct modify_ldt_ldt_s ldt_entry =				      \
 	{ (__gs & 0xffff) >> 3,						      \
-	  (unsigned long int) descr, sizeof (struct _pthread_descr_struct),   \
-	  1, 0, 0, 0, 0, 1, 0 };					      \
+	  (unsigned long int) (descr), 0xfffff /* 4GB in pages */,	      \
+	  1, 0, 0, 1, 0, 1, 0 };					      \
       if (__builtin_expect (INLINE_SYSCALL (set_thread_area, 1, &ldt_entry),  \
 			    0) == 0)					      \
 	asm ("movw %w0, %%gs" :: "q" (__gs));				      \
@@ -105,8 +105,8 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
     {									      \
       struct modify_ldt_ldt_s ldt_entry =				      \
 	{ -1,								      \
-	  (unsigned long int) descr, sizeof (struct _pthread_descr_struct),   \
-	  1, 0, 0, 0, 0, 1, 0 };					      \
+	  (unsigned long int) (descr), 0xfffff /* 4GB in pages */,	      \
+	  1, 0, 0, 1, 0, 1, 0 };					      \
       if (__builtin_expect (INLINE_SYSCALL (set_thread_area, 1, &ldt_entry),  \
 			    0) == 0)					      \
 	{								      \