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authorRoland McGrath <roland@gnu.org>2003-02-16 03:55:27 +0000
committerRoland McGrath <roland@gnu.org>2003-02-16 03:55:27 +0000
commitb0104b6f8d369692d0ca8f265b631a87df7eaeed (patch)
tree555ffba82bc5007faae6c14b52a648d050e09b7d /sysdeps/mach/hurd/i386/tls.h
parent8321ef15ae777fc7e7a0716e2e931adb099f310a (diff)
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* mach/errsystems.awk: Include <errno.h> in generated output.
Diffstat (limited to 'sysdeps/mach/hurd/i386/tls.h')
-rw-r--r--sysdeps/mach/hurd/i386/tls.h26
1 files changed, 16 insertions, 10 deletions
diff --git a/sysdeps/mach/hurd/i386/tls.h b/sysdeps/mach/hurd/i386/tls.h
index 454d16472a..4b21349545 100644
--- a/sysdeps/mach/hurd/i386/tls.h
+++ b/sysdeps/mach/hurd/i386/tls.h
@@ -28,22 +28,28 @@
/* Indiciate that TLS support is available. */
# define USE_TLS 1
+/* The TCB can have any size and the memory following the address the
+ thread pointer points to is unspecified. Allocate the TCB there. */
+# define TLS_TCB_AT_TP 1
+
+# ifndef ASSEMBLER
+
/* Use i386-specific RPCs to arrange that %gs segment register prefix
addresses the TCB in each thread. */
# include <mach/i386/mach_i386.h>
-#ifndef HAVE_I386_SET_GDT
-# define __i386_set_gdt(thr, sel, desc) ((thr), (sel), (desc), MIG_BAD_ID)
-#endif
+# ifndef HAVE_I386_SET_GDT
+# define __i386_set_gdt(thr, sel, desc) ((thr), (sel), (desc), MIG_BAD_ID)
+# endif
-static inline int _hurd_tls_init (tcbhead_t *, int secondcall)
- __attribute__ ((unused));
+# include <errno.h>
+# include <assert.h>
-static inline const char *
+static inline const char * __attribute__ ((unused))
_hurd_tls_init (tcbhead_t *tcb, int secondcall)
{
const unsigned int base = (unsigned int) tcb;
- const struct descriptor desc =
+ struct descriptor desc =
{ /* low word: */
0xffff /* limit 0..15 */
| (base << 16) /* base 0..15 */
@@ -62,7 +68,7 @@ _hurd_tls_init (tcbhead_t *tcb, int secondcall)
/* Get the first available selector. */
int sel = -1;
- error_t err = __i386_set_gdt (tcb->self, &sel, &desc);
+ error_t err = __i386_set_gdt (tcb->self, &sel, desc);
if (err == MIG_BAD_ID)
{
/* Old kernel, use a per-thread LDT. */
@@ -93,7 +99,7 @@ _hurd_tls_init (tcbhead_t *tcb, int secondcall)
}
else
{
- error_t err = __i386_set_gdt (tcb->self, &sel, &desc);
+ error_t err = __i386_set_gdt (tcb->self, &sel, desc);
assert_perror (err);
return "i386_set_gdt failed";
}
@@ -116,7 +122,7 @@ _hurd_tls_init (tcbhead_t *tcb, int secondcall)
# define THREAD_DTV() \
({ void *_dtv; __asm__ ("movl %%gs:0, %0" : "=r" (_dtv)); _dtv; })
-
+# endif /* !ASSEMBLER */
#endif /* HAVE_TLS_SUPPORT */
#endif /* i386/tls.h */