GNU C Library master sources branch, roland/systemtap, updated. glibc-2.13-18-g37494cb

roland@sourceware.org roland@sourceware.org
Thu Feb 10 03:52:00 GMT 2011


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      from  dadd34187c5c29eee8916f0d0163fcadca04ee90 (commit)

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- Log -----------------------------------------------------------------
http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=37494cbd145a9adcae52ae51b3f30a1a3cfe20ed

commit 37494cbd145a9adcae52ae51b3f30a1a3cfe20ed
Author: Roland McGrath <roland@redhat.com>
Date:   Wed Feb 9 19:51:46 2011 -0800

    Add systemtap static probe points in setjmp/longjmp on x86.

diff --git a/ChangeLog b/ChangeLog
index bfdc424..2e65f33 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2011-02-09  Roland McGrath  <roland@redhat.com>
+
+	* sysdeps/x86_64/__longjmp.S: Add a static probe here.
+	* sysdeps/x86_64/setjmp.S: Likewise.
+	* sysdeps/i386/bsd-setjmp.S: Likewise.
+	* sysdeps/i386/bsd-_setjmp.S: Likewise.
+	* sysdeps/i386/setjmp.S: Likewise.
+	* sysdeps/i386/__longjmp.S: Likewise.
+
 2011-02-08  Roland McGrath  <roland@redhat.com>
 
 	* include/stap-probe.h: New file.
diff --git a/sysdeps/i386/__longjmp.S b/sysdeps/i386/__longjmp.S
index 5ff7a73..6630217 100644
--- a/sysdeps/i386/__longjmp.S
+++ b/sysdeps/i386/__longjmp.S
@@ -1,5 +1,5 @@
 /* longjmp for i386.
-   Copyright (C) 1995-1998,2000,2002,2005,2006,2009
+   Copyright (C) 1995-1998,2000,2002,2005,2006,2009,2011
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -21,6 +21,7 @@
 #include <sysdep.h>
 #include <jmpbuf-offsets.h>
 #include <asm-syntax.h>
+#include <stap-probe.h>
 
 	.text
 ENTRY (__longjmp)
@@ -33,6 +34,7 @@ ENTRY (__longjmp)
 	movl (JB_SP*4)(%eax), %ecx
 	PTR_DEMANGLE (%edx)
 	PTR_DEMANGLE (%ecx)
+	LIBC_PROBE (longjmp, 3, 4@%eax, -4@8(%esp), 4@%edx)
 	cfi_def_cfa(%eax, 0)
 	cfi_register(%eip, %edx)
 	cfi_register(%esp, %ecx)
@@ -50,6 +52,7 @@ ENTRY (__longjmp)
 	cfi_restore(%edi)
 	cfi_restore(%ebp)
 
+	LIBC_PROBE (longjmp_target, 3, 4@%eax, -4@8(%esp), 4@%edx)
 	movl 8(%esp), %eax	/* Second argument is return value.  */
 	movl %ecx, %esp
 #else
@@ -57,12 +60,14 @@ ENTRY (__longjmp)
 	movl 8(%esp), %eax	/* Second argument is return value.  */
 	/* Save the return address now.  */
 	movl (JB_PC*4)(%ecx), %edx
+	LIBC_PROBE (longjmp, 3, 4@%ecx, -4@%eax, 4@%edx)
      	/* Restore registers.  */
 	movl (JB_BX*4)(%ecx), %ebx
 	movl (JB_SI*4)(%ecx), %esi
 	movl (JB_DI*4)(%ecx), %edi
 	movl (JB_BP*4)(%ecx), %ebp
 	movl (JB_SP*4)(%ecx), %esp
+	LIBC_PROBE (longjmp_target, 3, 4@%ecx, -4@%ecx, 4@%edx)
 #endif
 	/* Jump to saved PC.  */
      	jmp *%edx
diff --git a/sysdeps/i386/bsd-_setjmp.S b/sysdeps/i386/bsd-_setjmp.S
index ee329ee..9de5a08 100644
--- a/sysdeps/i386/bsd-_setjmp.S
+++ b/sysdeps/i386/bsd-_setjmp.S
@@ -1,5 +1,6 @@
 /* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'.  i386 version.
-   Copyright (C) 1994-1997,2000-2002,2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1994-1997,2000-2002,2005,2006,2011
+	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,6 +26,7 @@
 #include <jmpbuf-offsets.h>
 #include "bp-sym.h"
 #include "bp-asm.h"
+#include <stap-probe.h>
 
 #define PARMS	LINKAGE		/* no space for saved regs */
 #define JMPBUF	PARMS
@@ -47,6 +49,7 @@ ENTRY (BP_SYM (_setjmp))
 #endif
      	movl %ecx, (JB_SP*4)(%edx)
 	movl PCOFF(%esp), %ecx	/* Save PC we are returning to now.  */
+	LIBC_PROBE (setjmp, 3, 4@%edx, -4@$0, 4@%ecx)
 #ifdef PTR_MANGLE
 	PTR_MANGLE (%ecx)
 #endif
diff --git a/sysdeps/i386/bsd-setjmp.S b/sysdeps/i386/bsd-setjmp.S
index c9af0e1..c7804d0 100644
--- a/sysdeps/i386/bsd-setjmp.S
+++ b/sysdeps/i386/bsd-setjmp.S
@@ -1,5 +1,6 @@
 /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'.  i386 version.
-   Copyright (C) 1994-1997,2000,2001,2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1994-1997,2000,2001,2005,2006,2011
+	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,6 +26,7 @@
 #include <jmpbuf-offsets.h>
 #include "bp-sym.h"
 #include "bp-asm.h"
+#include <stap-probe.h>
 
 #define PARMS  LINKAGE		/* no space for saved regs */
 #define JMPBUF PARMS
@@ -49,6 +51,7 @@ ENTRY (BP_SYM (setjmp))
 #endif
      	movl %ecx, (JB_SP*4)(%eax)
 	movl PCOFF(%esp), %ecx	/* Save PC we are returning to now.  */
+	LIBC_PROBE (setjmp, 3, 4@%eax, -4@$1, 4@%ecx)
 #ifdef PTR_MANGLE
 	PTR_MANGLE (%ecx)
 #endif
diff --git a/sysdeps/i386/setjmp.S b/sysdeps/i386/setjmp.S
index 56c3994..2b5fab9 100644
--- a/sysdeps/i386/setjmp.S
+++ b/sysdeps/i386/setjmp.S
@@ -1,5 +1,5 @@
 /* setjmp for i386.
-   Copyright (C) 1995,1996,1997,2000,2001,2005,2006
+   Copyright (C) 1995,1996,1997,2000,2001,2005,2006,2011
 	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -23,6 +23,7 @@
 #include <asm-syntax.h>
 #include "bp-sym.h"
 #include "bp-asm.h"
+#include <stap-probe.h>
 
 #define PARMS	LINKAGE		/* no space for saved regs */
 #define JMPBUF	PARMS
@@ -44,6 +45,7 @@ ENTRY (BP_SYM (__sigsetjmp))
 #endif
      	movl %ecx, (JB_SP*4)(%eax)
 	movl PCOFF(%esp), %ecx	/* Save PC we are returning to now.  */
+	LIBC_PROBE (setjmp, 3, 4@%eax, -4@SIGMSK(%esp), 4@%ecx)
 #ifdef PTR_MANGLE
 	PTR_MANGLE (%ecx)
 #endif
diff --git a/sysdeps/x86_64/__longjmp.S b/sysdeps/x86_64/__longjmp.S
index b045c04..38b801e 100644
--- a/sysdeps/x86_64/__longjmp.S
+++ b/sysdeps/x86_64/__longjmp.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001,2004,2005,2006,2009 Free Software Foundation, Inc.
+/* Copyright (C) 2001,2004,2005,2006,2009,2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,6 +19,7 @@
 #include <sysdep.h>
 #include <jmpbuf-offsets.h>
 #include <asm-syntax.h>
+#include <stap-probe.h>
 
 /* Jump to the position specified by ENV, causing the
    setjmp call there to return VAL, or 1 if VAL is 0.
@@ -34,6 +35,7 @@ ENTRY(__longjmp)
 	PTR_DEMANGLE (%r9)
 	PTR_DEMANGLE (%rdx)
 #endif
+	LIBC_PROBE (longjmp, 3, 8@%rdi, -4@%esi, 8@%rdx)
 	/* We add unwind information for the target here.  */
 	cfi_def_cfa(%rdi, 0)
 	cfi_register(%rsp,%r8)
@@ -53,5 +55,6 @@ ENTRY(__longjmp)
 	mov %esi, %eax
 	movq %r8,%rsp
 	movq %r9,%rbp
+	LIBC_PROBE (longjmp_target, 3, 8@%rdi, -4@%eax, 8@%rdx)
 	jmpq *%rdx
 END (__longjmp)
diff --git a/sysdeps/x86_64/setjmp.S b/sysdeps/x86_64/setjmp.S
index a66b0e6..58d5b17 100644
--- a/sysdeps/x86_64/setjmp.S
+++ b/sysdeps/x86_64/setjmp.S
@@ -1,5 +1,5 @@
 /* setjmp for x86-64.
-   Copyright (C) 2001, 2003, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2001,2003,2005,2006,2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,6 +20,7 @@
 #include <sysdep.h>
 #include <jmpbuf-offsets.h>
 #include <asm-syntax.h>
+#include <stap-probe.h>
 
 ENTRY (__sigsetjmp)
 	/* Save registers.  */
@@ -41,6 +42,7 @@ ENTRY (__sigsetjmp)
 #endif
 	movq %rdx, (JB_RSP*8)(%rdi)
 	movq (%rsp), %rax	/* Save PC we are returning to now.  */
+	LIBC_PROBE (setjmp, 3, 8@%rdi, -4@%esi, 8@%rax)
 #ifdef PTR_MANGLE
 	PTR_MANGLE (%rax)
 #endif

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                  |    9 +++++++++
 sysdeps/i386/__longjmp.S   |    7 ++++++-
 sysdeps/i386/bsd-_setjmp.S |    5 ++++-
 sysdeps/i386/bsd-setjmp.S  |    5 ++++-
 sysdeps/i386/setjmp.S      |    4 +++-
 sysdeps/x86_64/__longjmp.S |    5 ++++-
 sysdeps/x86_64/setjmp.S    |    4 +++-
 7 files changed, 33 insertions(+), 6 deletions(-)


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