From 421665c40ae002f74130eb4e0b19cb22d97860cf Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 4 Aug 2009 11:03:46 -0700 Subject: Optimize x86-64 syscall cancellation handling. The syscall wrappers had to save and restore the syscall parameter values and return value when calling the functions to enable/disable cancellation were called. Not anymore. The called functions are special and don't modify any unexpected registers. --- nptl/sysdeps/x86_64/tcb-offsets.sym | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'nptl/sysdeps/x86_64') diff --git a/nptl/sysdeps/x86_64/tcb-offsets.sym b/nptl/sysdeps/x86_64/tcb-offsets.sym index 51f35c61cf..cf863752ee 100644 --- a/nptl/sysdeps/x86_64/tcb-offsets.sym +++ b/nptl/sysdeps/x86_64/tcb-offsets.sym @@ -16,3 +16,13 @@ VGETCPU_CACHE_OFFSET offsetof (tcbhead_t, vgetcpu_cache) PRIVATE_FUTEX offsetof (tcbhead_t, private_futex) #endif RTLD_SAVESPACE_SSE offsetof (tcbhead_t, rtld_savespace_sse) + +-- Not strictly offsets, but these values are also used in the TCB. +TCB_CANCELSTATE_BITMASK CANCELSTATE_BITMASK +TCB_CANCELTYPE_BITMASK CANCELTYPE_BITMASK +TCB_CANCELING_BITMASK CANCELING_BITMASK +TCB_CANCELED_BITMASK CANCELED_BITMASK +TCB_EXITING_BITMASK EXITING_BITMASK +TCB_CANCEL_RESTMASK CANCEL_RESTMASK +TCB_TERMINATED_BITMASK TERMINATED_BITMASK +TCB_PTHREAD_CANCELED PTHREAD_CANCELED -- cgit 1.4.1