diff options
Diffstat (limited to 'source/l/glibc/glibc-2.15-revert-c5a0802a.diff')
| -rw-r--r-- | source/l/glibc/glibc-2.15-revert-c5a0802a.diff | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/source/l/glibc/glibc-2.15-revert-c5a0802a.diff b/source/l/glibc/glibc-2.15-revert-c5a0802a.diff new file mode 100644 index 00000000..b53581b3 --- /dev/null +++ b/source/l/glibc/glibc-2.15-revert-c5a0802a.diff @@ -0,0 +1,226 @@ +diff -rup a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S 2011-12-22 18:04:12.937212834 +0000 ++++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S 2011-12-22 18:04:42.104222278 +0000 +@@ -137,7 +137,6 @@ __pthread_cond_wait: + cmpl $PI_BIT, %eax + jne 18f + +-90: + movl $(FUTEX_WAIT_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %ecx + movl %ebp, %edx + xorl %esi, %esi +@@ -151,9 +150,6 @@ __pthread_cond_wait: + sete 16(%esp) + je 19f + +- cmpl $-EAGAIN, %eax +- je 91f +- + /* Normal and PI futexes dont mix. Use normal futex functions only + if the kernel does not support the PI futex functions. */ + cmpl $-ENOSYS, %eax +@@ -398,78 +394,6 @@ __pthread_cond_wait: + #endif + call __lll_unlock_wake + jmp 11b +- +-91: +-.LcleanupSTART2: +- /* FUTEX_WAIT_REQUEUE_PI returned EAGAIN. We need to +- call it again. */ +- +- /* Get internal lock. */ +- movl $1, %edx +- xorl %eax, %eax +- LOCK +-#if cond_lock == 0 +- cmpxchgl %edx, (%ebx) +-#else +- cmpxchgl %edx, cond_lock(%ebx) +-#endif +- jz 92f +- +-#if cond_lock == 0 +- movl %ebx, %edx +-#else +- leal cond_lock(%ebx), %edx +-#endif +-#if (LLL_SHARED-LLL_PRIVATE) > 255 +- xorl %ecx, %ecx +-#endif +- cmpl $-1, dep_mutex(%ebx) +- setne %cl +- subl $1, %ecx +- andl $(LLL_SHARED-LLL_PRIVATE), %ecx +-#if LLL_PRIVATE != 0 +- addl $LLL_PRIVATE, %ecx +-#endif +- call __lll_lock_wait +- +-92: +- /* Increment the cond_futex value again, so it can be used as a new +- expected value. */ +- addl $1, cond_futex(%ebx) +- movl cond_futex(%ebx), %ebp +- +- /* Unlock. */ +- LOCK +-#if cond_lock == 0 +- subl $1, (%ebx) +-#else +- subl $1, cond_lock(%ebx) +-#endif +- je 93f +-#if cond_lock == 0 +- movl %ebx, %eax +-#else +- leal cond_lock(%ebx), %eax +-#endif +-#if (LLL_SHARED-LLL_PRIVATE) > 255 +- xorl %ecx, %ecx +-#endif +- cmpl $-1, dep_mutex(%ebx) +- setne %cl +- subl $1, %ecx +- andl $(LLL_SHARED-LLL_PRIVATE), %ecx +-#if LLL_PRIVATE != 0 +- addl $LLL_PRIVATE, %ecx +-#endif +- call __lll_unlock_wake +- +-93: +- /* Set the rest of SYS_futex args for FUTEX_WAIT_REQUEUE_PI. */ +- xorl %ecx, %ecx +- movl dep_mutex(%ebx), %edi +- jmp 90b +-.LcleanupEND2: +- + .size __pthread_cond_wait, .-__pthread_cond_wait + versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, + GLIBC_2_3_2) +@@ -642,10 +566,6 @@ __condvar_w_cleanup: + .long .LcleanupEND-.Lsub_cond_futex + .long __condvar_w_cleanup-.LSTARTCODE + .uleb128 0 +- .long .LcleanupSTART2-.LSTARTCODE +- .long .LcleanupEND2-.LcleanupSTART2 +- .long __condvar_w_cleanup-.LSTARTCODE +- .uleb128 0 + .long .LcallUR-.LSTARTCODE + .long .LENDCODE-.LcallUR + .long 0 +Only in b/nptl/sysdeps/unix/sysv/linux/i386/i486: pthread_cond_wait.S.orig +diff -rup a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S +--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S 2011-12-22 18:04:12.941212837 +0000 ++++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S 2011-12-22 18:05:05.155229737 +0000 +@@ -23,7 +23,6 @@ + #include <lowlevelcond.h> + #include <tcb-offsets.h> + #include <pthread-pi-defines.h> +-#include <pthread-errnos.h> + + #include <kernel-features.h> + +@@ -137,14 +136,11 @@ __pthread_cond_wait: + cmpl $PI_BIT, %eax + jne 61f + +-90: + movl $(FUTEX_WAIT_REQUEUE_PI|FUTEX_PRIVATE_FLAG), %esi + movl $SYS_futex, %eax + syscall + + movl $1, %r8d +- cmpq $-EAGAIN, %rax +- je 91f + #ifdef __ASSUME_REQUEUE_PI + jmp 62f + #else +@@ -331,70 +327,6 @@ __pthread_cond_wait: + + 13: movq %r10, %rax + jmp 14b +- +-91: +-.LcleanupSTART2: +- /* FUTEX_WAIT_REQUEUE_PI returned EAGAIN. We need to +- call it again. */ +- movq 8(%rsp), %rdi +- +- /* Get internal lock. */ +- movl $1, %esi +- xorl %eax, %eax +- LOCK +-#if cond_lock == 0 +- cmpxchgl %esi, (%rdi) +-#else +- cmpxchgl %esi, cond_lock(%rdi) +-#endif +- jz 92f +- +-#if cond_lock != 0 +- addq $cond_lock, %rdi +-#endif +- cmpq $-1, dep_mutex-cond_lock(%rdi) +- movl $LLL_PRIVATE, %eax +- movl $LLL_SHARED, %esi +- cmovne %eax, %esi +- callq __lll_lock_wait +-#if cond_lock != 0 +- subq $cond_lock, %rdi +-#endif +-92: +- /* Increment the cond_futex value again, so it can be used as a new +- expected value. */ +- incl cond_futex(%rdi) +- movl cond_futex(%rdi), %edx +- +- /* Release internal lock. */ +- LOCK +-#if cond_lock == 0 +- decl (%rdi) +-#else +- decl cond_lock(%rdi) +-#endif +- jz 93f +- +-#if cond_lock != 0 +- addq $cond_lock, %rdi +-#endif +- cmpq $-1, dep_mutex-cond_lock(%rdi) +- movl $LLL_PRIVATE, %eax +- movl $LLL_SHARED, %esi +- cmovne %eax, %esi +- /* The call preserves %rdx. */ +- callq __lll_unlock_wake +-#if cond_lock != 0 +- subq $cond_lock, %rdi +-#endif +-93: +- /* Set the rest of SYS_futex args for FUTEX_WAIT_REQUEUE_PI. */ +- xorq %r10, %r10 +- movq dep_mutex(%rdi), %r8 +- leaq cond_futex(%rdi), %rdi +- jmp 90b +-.LcleanupEND2: +- + .size __pthread_cond_wait, .-__pthread_cond_wait + versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, + GLIBC_2_3_2) +@@ -547,15 +479,11 @@ __condvar_cleanup1: + .uleb128 .LcleanupSTART-.LSTARTCODE + .uleb128 .LcleanupEND-.LcleanupSTART + .uleb128 __condvar_cleanup1-.LSTARTCODE +- .uleb128 0 +- .uleb128 .LcleanupSTART2-.LSTARTCODE +- .uleb128 .LcleanupEND2-.LcleanupSTART2 +- .uleb128 __condvar_cleanup1-.LSTARTCODE +- .uleb128 0 ++ .uleb128 0 + .uleb128 .LcallUR-.LSTARTCODE + .uleb128 .LENDCODE-.LcallUR + .uleb128 0 +- .uleb128 0 ++ .uleb128 0 + .Lcstend: + |