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diff -pruN glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
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--- glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c 2012-12-25 08:32:13.000000000 +0530
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+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c 2014-09-05 21:50:56.982975803 +0530
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@@ -21,11 +21,13 @@
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#include <sysdep.h>
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#include <lowlevellock.h>
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#include <sys/time.h>
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+#include <stap-probe.h>
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void
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__lll_lock_wait_private (int *futex)
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{
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+ LIBC_PROBE (lll_lock_wait_private, 1, futex);
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if (*futex == 2)
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lll_futex_wait (futex, 2, LLL_PRIVATE);
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@@ -39,6 +42,7 @@ __lll_lock_wait_private (int *futex)
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void
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__lll_lock_wait (int *futex, int private)
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{
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+ LIBC_PROBE (lll_lock_wait, 2, futex, FUTEX_WAIT | private);
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if (*futex == 2)
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lll_futex_wait (futex, 2, private);
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diff -pruN glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
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--- glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h 2012-12-25 08:32:13.000000000 +0530
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+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h 2014-09-05 21:51:58.722483631 +0530
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@@ -19,6 +19,8 @@
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#ifndef _LOWLEVELLOCK_H
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#define _LOWLEVELLOCK_H 1
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+#include <stap-probe.h>
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+
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#include <time.h>
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#include <sys/param.h>
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#include <bits/pthreadtypes.h>
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@@ -106,6 +108,7 @@
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INTERNAL_SYSCALL_DECL (__err); \
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long int __ret; \
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\
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+ LIBC_PROBE (lll_futex_wake, 3, futexp, nr, private); \
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__ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
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__lll_private_flag (FUTEX_WAKE, private), \
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(nr), 0); \
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diff -pruN glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
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--- glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h 2012-12-25 08:32:13.000000000 +0530
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+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h 2014-09-05 21:51:58.722483631 +0530
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@@ -19,6 +19,8 @@
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#ifndef _LOWLEVELLOCK_H
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#define _LOWLEVELLOCK_H 1
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+#include <stap-probe.h>
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+
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#include <time.h>
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#include <sys/param.h>
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#include <bits/pthreadtypes.h>
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@@ -122,6 +124,7 @@
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register unsigned long int __r4 asm ("4") = (unsigned long int) (nr); \
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register unsigned long int __result asm ("2"); \
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\
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+ LIBC_PROBE (lll_futex_wake, 3, futex, nr, private); \
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__asm __volatile ("svc %b1" \
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: "=d" (__result) \
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: "i" (SYS_futex), "0" (__r2), "d" (__r3), "d" (__r4) \
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