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authorUlrich Drepper <drepper@redhat.com>2003-05-10 05:36:37 +0000
committerUlrich Drepper <drepper@redhat.com>2003-05-10 05:36:37 +0000
commit949ec7640747878988b3f8019a7b7f98c10ab3ac (patch)
tree35994dc52f7f30189e655666a5de0f37cb1a23e4 /nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
parent880867a475b1016f892a1248a3fce693406bf1f1 (diff)
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO. * sysdeps/generic/sched_getaffinity.c: Adjust definition. * sysdeps/generic/sched_setaffinity.c: Likewise. * sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS, __CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET, __CPU_CLR, and __CPU_ISSET. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. * sysdeps/unix/sysv/linux/sched_getaffinity.c: New file. * sysdeps/unix/sysv/linux/sched_setaffinity.c: New file. * include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange. (atomic_exchange_rel): New #define. * sysdeps/ia64/bits/atomic.h: Likewise. * sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange. * sysdeps/m68k/m68020/bits/atomic.h: Likewise. * sysdeps/powerpc/bits/atomic.h: Likewise. * sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise. * sysdeps/sparc/sparc64/bits/atomic.h: Likewise. * sysdeps/x86_64/bits/atomic.h: Likewise. * csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h60
1 files changed, 30 insertions, 30 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
index 2318edfcdb..5fd50b97db 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -41,17 +41,34 @@
#define LLL_MUTEX_LOCK_INITIALIZER (0)
-#define LLL_ENTER_KERNEL "int $0x80\n\t"
+#ifdef PIC
+# define LLL_EBX_LOAD "xchgl %2, %%ebx\n"
+# define LLL_EBX_REG "D"
+#else
+# define LLL_EBX_LOAD
+# define LLL_EBX_REG "b"
+#endif
+
+#ifdef I386_USE_SYSENTER
+# ifdef SHARED
+# define LLL_ENTER_KERNEL "call *%%gs:%P6\n\t"
+# else
+# define LLL_ENTER_KERNEL "call *_dl_sysinfo\n\t"
+# endif
+#else
+# define LLL_ENTER_KERNEL "int $0x80\n\t"
+#endif
+
#define lll_futex_wait(futex, val) \
do { \
int __ignore; \
register __typeof (val) _val asm ("edx") = (val); \
- __asm __volatile ("xchgl %2, %%ebx\n\t" \
+ __asm __volatile (LLL_EBX_LOAD \
LLL_ENTER_KERNEL \
- "xchgl %2, %%ebx" \
+ LLL_EBX_LOAD \
: "=a" (__ignore) \
- : "0" (SYS_futex), "D" (&futex), "S" (0), \
+ : "0" (SYS_futex), LLL_EBX_REG (&futex), "S" (0), \
"c" (FUTEX_WAIT), "d" (_val), \
"i" (offsetof (tcbhead_t, sysinfo))); \
} while (0)
@@ -61,12 +78,13 @@
do { \
int __ignore; \
register __typeof (nr) _nr asm ("edx") = (nr); \
- __asm __volatile ("xchgl %2, %%ebx\n\t" \
+ __asm __volatile (LLL_EBX_LOAD \
LLL_ENTER_KERNEL \
- "xchgl %2, %%ebx" \
+ LLL_EBX_LOAD \
: "=a" (__ignore) \
- : "0" (SYS_futex), "D" (&futex), "c" (FUTEX_WAKE), \
- "d" (_nr), "i" (0), \
+ : "0" (SYS_futex), LLL_EBX_REG (&futex), \
+ "c" (FUTEX_WAKE), "d" (_nr), \
+ "i" (0) /* phony, to align next arg's number */, \
"i" (offsetof (tcbhead_t, sysinfo))); \
} while (0)
@@ -277,37 +295,19 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
afterwards.
The macro parameter must not have any side effect. */
-#ifdef PIC
-# define LLL_TID_EBX_LOAD "xchgl %2, %%ebx\n"
-# define LLL_TID_EBX_REG "D"
-#else
-# define LLL_TID_EBX_LOAD
-# define LLL_TID_EBX_REG "b"
-#endif
-
-#ifdef I386_USE_SYSENTER
-# ifdef SHARED
-# define LLL_TID_ENTER_KERNEL "call *%%gs:%P6\n\t"
-# else
-# define LLL_TID_ENTER_KERNEL "call *_dl_sysinfo\n\t"
-# endif
-#else
-# define LLL_TID_ENTER_KERNEL "int $0x80\n\t"
-#endif
-
#define lll_wait_tid(tid) \
do { \
int __ignore; \
register __typeof (tid) _tid asm ("edx") = (tid); \
if (_tid != 0) \
- __asm __volatile (LLL_TID_EBX_LOAD \
+ __asm __volatile (LLL_EBX_LOAD \
"1:\tmovl %1, %%eax\n\t" \
- LLL_TID_ENTER_KERNEL \
+ LLL_ENTER_KERNEL \
"cmpl $0, (%%ebx)\n\t" \
"jne,pn 1b\n\t" \
- LLL_TID_EBX_LOAD \
+ LLL_EBX_LOAD \
: "=&a" (__ignore) \
- : "i" (SYS_futex), LLL_TID_EBX_REG (&tid), "S" (0), \
+ : "i" (SYS_futex), LLL_EBX_REG (&tid), "S" (0), \
"c" (FUTEX_WAIT), "d" (_tid), \
"i" (offsetof (tcbhead_t, sysinfo))); \
} while (0)