From: H.J. Lu Date: Tue, 15 May 2012 17:19:11 +0000 (-0700) Subject: Use LP_OP(mov) and RDI_LP on pointer X-Git-Tag: glibc-2.16-tps~325 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=289ac4352aa9ac63474e03022a5ad395d8346ee5;p=thirdparty%2Fglibc.git Use LP_OP(mov) and RDI_LP on pointer --- diff --git a/nptl/ChangeLog b/nptl/ChangeLog index d1ca1617426..68bae39e743 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,8 @@ +2012-05-15 H.J. Lu + + * sysdeps/unix/sysv/linux/x86_64/cancellation.S: Use LP_OP(mov) + to update pointer in memory. Load pointer into RDI_LP. + 2012-05-15 H.J. Lu * sysdeps/unix/sysv/linux/x86_64/lowlevellock.h diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S b/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S index d7c7e80cef2..31bb08b376a 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S @@ -72,10 +72,10 @@ ENTRY(__pthread_enable_asynccancel) 3: subq $8, %rsp cfi_adjust_cfa_offset(8) - movq $TCB_PTHREAD_CANCELED, %fs:RESULT + LP_OP(mov) $TCB_PTHREAD_CANCELED, %fs:RESULT lock orl $TCB_EXITING_BITMASK, %fs:CANCELHANDLING - movq %fs:CLEANUP_JMP_BUF, %rdi + mov %fs:CLEANUP_JMP_BUF, %RDI_LP #ifdef SHARED call __pthread_unwind@PLT #else @@ -106,7 +106,7 @@ ENTRY(__pthread_disable_asynccancel) /* Performance doesn't matter in this loop. We will delay until the thread is canceled. And we will unlikely enter the loop twice. */ -4: movq %fs:0, %rdi +4: mov %fs:0, %RDI_LP movl $__NR_futex, %eax xorq %r10, %r10 addq $CANCELHANDLING, %rdi