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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)
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* 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) \
{ \