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author | Ulrich Drepper <drepper@redhat.com> | 2003-05-10 05:36:37 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2003-05-10 05:36:37 +0000 |
commit | 949ec7640747878988b3f8019a7b7f98c10ab3ac (patch) | |
tree | 35994dc52f7f30189e655666a5de0f37cb1a23e4 /nptl/sysdeps/unix/sysv/linux/i386 | |
parent | 880867a475b1016f892a1248a3fce693406bf1f1 (diff) | |
download | glibc-949ec7640747878988b3f8019a7b7f98c10ab3ac.tar.gz glibc-949ec7640747878988b3f8019a7b7f98c10ab3ac.tar.xz glibc-949ec7640747878988b3f8019a7b7f98c10ab3ac.zip |
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')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h | 60 |
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) |