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-rw-r--r--ChangeLog11
-rw-r--r--linuxthreads/ChangeLog6
-rw-r--r--linuxthreads/sysdeps/mips/pspinlock.c17
-rw-r--r--linuxthreads/sysdeps/mips/pt-machine.h8
-rw-r--r--sysdeps/mips/atomicity.h45
-rw-r--r--sysdeps/unix/sysv/linux/configure2
-rw-r--r--sysdeps/unix/sysv/linux/configure.in2
-rw-r--r--sysdeps/unix/sysv/linux/mips/sys/tas.h17
8 files changed, 36 insertions, 72 deletions
diff --git a/ChangeLog b/ChangeLog
index 2b8d53a762..43ee14c897 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,16 @@
+2002-07-02 H.J. Lu <hjl@gnu.org>
+
+ * sysdeps/mips/atomicity.h: Don't include <sgidefs.h>. Always
+ use ll/sc.
+ * sysdeps/unix/sysv/linux/mips/sys/tas.h: Likewise.
+
+ * sysdeps/unix/sysv/linux/configure.in: Set arch_minimum_kernel
+ to 2.4.0 for mips.
+
2002-07-15 Ulrich Drepper <drepper@redhat.com>
* elf/dl-load.c (_dl_map_object_from_fd): If loaded object uses
- TLS fail is USE_TLS is not defined.
+ TLS fail if USE_TLS is not defined.
* libio/wfileops.c (_IO_wfile_seekoff): Reposition wide pointers
and adjust state for seek position. [PR libc/4070]
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index ec04411bbe..e70be81c13 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,9 @@
+2002-07-02 H.J. Lu <hjl@gnu.org>
+
+ * sysdeps/mips/pspinlock.c: Don't include <sgidefs.h>. Always
+ use ll/sc.
+ * sysdeps/mips/pt-machine.h: Likewise.
+
2002-07-14 Ulrich Drepper <drepper@redhat.com>
* manager.c (pthread_handle_create): Initialize self-reference in
diff --git a/linuxthreads/sysdeps/mips/pspinlock.c b/linuxthreads/sysdeps/mips/pspinlock.c
index 1aa372b4b8..7dd66af2c4 100644
--- a/linuxthreads/sysdeps/mips/pspinlock.c
+++ b/linuxthreads/sysdeps/mips/pspinlock.c
@@ -19,12 +19,9 @@
#include <errno.h>
#include <pthread.h>
-#include <sgidefs.h>
#include <sys/tas.h>
#include "internals.h"
-#if (_MIPS_ISA >= _MIPS_ISA_MIPS2)
-
/* This implementation is similar to the one used in the Linux kernel. */
int
__pthread_spin_lock (pthread_spinlock_t *lock)
@@ -34,10 +31,13 @@ __pthread_spin_lock (pthread_spinlock_t *lock)
asm volatile
("\t\t\t# spin_lock\n"
"1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
"ll %1,%3\n\t"
"li %2,1\n\t"
"bnez %1,1b\n\t"
"sc %2,%0\n\t"
+ ".set pop\n\t"
"beqz %2,1b"
: "=m" (*lock), "=&r" (tmp1), "=&r" (tmp2)
: "m" (*lock)
@@ -46,17 +46,6 @@ __pthread_spin_lock (pthread_spinlock_t *lock)
return 0;
}
-#else /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
- while (_test_and_set ((int *) lock, 1));
- return 0;
-}
-
-#endif /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
weak_alias (__pthread_spin_lock, pthread_spin_lock)
diff --git a/linuxthreads/sysdeps/mips/pt-machine.h b/linuxthreads/sysdeps/mips/pt-machine.h
index 31a3421fba..2bad9427ef 100644
--- a/linuxthreads/sysdeps/mips/pt-machine.h
+++ b/linuxthreads/sysdeps/mips/pt-machine.h
@@ -23,7 +23,6 @@
#ifndef _PT_MACHINE_H
#define _PT_MACHINE_H 1
-#include <sgidefs.h>
#include <sys/tas.h>
#ifndef PT_EI
@@ -51,8 +50,6 @@ register char * stack_pointer __asm__ ("$29");
/* Compare-and-swap for semaphores. */
-#if (_MIPS_ISA >= _MIPS_ISA_MIPS2)
-
#define HAS_COMPARE_AND_SWAP
PT_EI int
__compare_and_swap (long int *p, long int oldval, long int newval)
@@ -62,11 +59,14 @@ __compare_and_swap (long int *p, long int oldval, long int newval)
__asm__ __volatile__
("/* Inline compare & swap */\n"
"1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
"ll %1,%5\n\t"
"move %0,$0\n\t"
"bne %1,%3,2f\n\t"
"move %0,%4\n\t"
"sc %0,%2\n\t"
+ ".set pop\n\t"
"beqz %0,1b\n"
"2:\n\t"
"/* End compare & swap */"
@@ -77,6 +77,4 @@ __compare_and_swap (long int *p, long int oldval, long int newval)
return ret;
}
-#endif /* (_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
#endif /* pt-machine.h */
diff --git a/sysdeps/mips/atomicity.h b/sysdeps/mips/atomicity.h
index b4b7b64dd0..bccacd9c90 100644
--- a/sysdeps/mips/atomicity.h
+++ b/sysdeps/mips/atomicity.h
@@ -20,11 +20,8 @@
#ifndef _MIPS_ATOMICITY_H
#define _MIPS_ATOMICITY_H 1
-#include <sgidefs.h>
#include <inttypes.h>
-#if (_MIPS_ISA >= _MIPS_ISA_MIPS2)
-
static inline int
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, int val)
@@ -34,9 +31,12 @@ exchange_and_add (volatile uint32_t *mem, int val)
__asm__ __volatile__
("/* Inline exchange & add */\n"
"1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
"ll %0,%3\n\t"
"addu %1,%4,%0\n\t"
"sc %1,%2\n\t"
+ ".set pop\n\t"
"beqz %1,1b\n\t"
"/* End exchange & add */"
: "=&r"(result), "=&r"(tmp), "=m"(*mem)
@@ -55,9 +55,12 @@ atomic_add (volatile uint32_t *mem, int val)
__asm__ __volatile__
("/* Inline atomic add */\n"
"1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
"ll %0,%2\n\t"
"addu %0,%3,%0\n\t"
"sc %0,%1\n\t"
+ ".set pop\n\t"
"beqz %0,1b\n\t"
"/* End atomic add */"
: "=&r"(result), "=m"(*mem)
@@ -74,11 +77,14 @@ compare_and_swap (volatile long int *p, long int oldval, long int newval)
__asm__ __volatile__
("/* Inline compare & swap */\n"
"1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
"ll %1,%5\n\t"
"move %0,$0\n\t"
"bne %1,%3,2f\n\t"
"move %0,%4\n\t"
"sc %0,%2\n\t"
+ ".set pop\n\t"
"beqz %0,1b\n"
"2:\n\t"
"/* End compare & swap */"
@@ -89,37 +95,4 @@ compare_and_swap (volatile long int *p, long int oldval, long int newval)
return ret;
}
-#else /* (_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
-#warning MIPS I atomicity functions are not atomic
-
-static inline int
-__attribute__ ((unused))
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- int result = *mem;
- *mem += val;
- return result;
-}
-
-static inline void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
- *mem += val;
-}
-
-static inline int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- if (*p != oldval)
- return 0;
-
- *p = newval;
- return 1;
-}
-
-#endif /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
#endif /* atomicity.h */
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index b08bbb2973..3b30a9ce62 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -72,7 +72,7 @@ case "$machine" in
libc_cv_gcc_unwind_find_fde=yes
;;
mips*)
- arch_minimum_kernel=2.2.15
+ arch_minimum_kernel=2.4.0
libc_cv_gcc_unwind_find_fde=yes
;;
powerpc*)
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index 5362d45aab..c5aa4e81cf 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.in
@@ -59,7 +59,7 @@ case "$machine" in
libc_cv_gcc_unwind_find_fde=yes
;;
mips*)
- arch_minimum_kernel=2.2.15
+ arch_minimum_kernel=2.4.0
libc_cv_gcc_unwind_find_fde=yes
;;
powerpc*)
diff --git a/sysdeps/unix/sysv/linux/mips/sys/tas.h b/sysdeps/unix/sysv/linux/mips/sys/tas.h
index 2a1a04546e..7ad916c3c9 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/tas.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/tas.h
@@ -21,8 +21,6 @@
#define _SYS_TAS_H 1
#include <features.h>
-#include <sgidefs.h>
-#include <sys/sysmips.h>
__BEGIN_DECLS
@@ -34,8 +32,6 @@ extern int _test_and_set (int *p, int v) __THROW;
# define _EXTERN_INLINE extern __inline
# endif
-# if (_MIPS_ISA >= _MIPS_ISA_MIPS2)
-
_EXTERN_INLINE int
_test_and_set (int *p, int v) __THROW
{
@@ -44,10 +40,13 @@ _test_and_set (int *p, int v) __THROW
__asm__ __volatile__
("/* Inline test and set */\n"
"1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
"ll %0,%3\n\t"
"move %1,%4\n\t"
"beq %0,%4,2f\n\t"
"sc %1,%2\n\t"
+ ".set pop\n\t"
"beqz %1,1b\n"
"2:\n\t"
"/* End test and set */"
@@ -58,16 +57,6 @@ _test_and_set (int *p, int v) __THROW
return r;
}
-# else /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
-_EXTERN_INLINE int
-_test_and_set (int *p, int v) __THROW
-{
- return sysmips (MIPS_ATOMIC_SET, (int) p, v, 0);
-}
-
-# endif /* !(_MIPS_ISA >= _MIPS_ISA_MIPS2) */
-
#endif /* __USE_EXTERN_INLINES */
__END_DECLS
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 23:19:06 +0000