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authorRoland McGrath <roland@hack.frob.com>2012-05-25 13:31:57 -0700
committerRoland McGrath <roland@hack.frob.com>2012-05-25 13:41:03 -0700
commit8422c9a560e6e3c854739c8a13ecb1c6714f930f (patch)
tree145ab8a248defdcdc064755032eecb0eb69a4e97 /sysdeps/unix/sysv/linux/x86_64
parent3a097cc7a18309c864186c1b864b90889d2a45e9 (diff)
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Add systemtap static probe points in setjmp/longjmp on x86.
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64')
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S7
1 files changed, 6 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S b/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S
index c392820cd0..d9bdb67d52 100644
--- a/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S
+++ b/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S
@@ -18,6 +18,7 @@
#include <sysdep.h>
#include <jmpbuf-offsets.h>
#include <asm-syntax.h>
+#include <stap-probe.h>
#include <sigaltstack-offsets.h>
@@ -103,7 +104,9 @@ ENTRY(____longjmp_chk)
movl %ebx, %esi
cfi_restore (%rsi)
-.Lok: /* We add unwind information for the target here. */
+.Lok:
+ LIBC_PROBE (longjmp, 3, LP_SIZE@%RDI_LP, -4@%esi, LP_SIZE@%RDX_LP)
+ /* We add unwind information for the target here. */
cfi_def_cfa(%rdi, 0)
cfi_register(%rsp,%r8)
cfi_register(%rbp,%r9)
@@ -122,5 +125,7 @@ ENTRY(____longjmp_chk)
movl %esi, %eax
mov %R8_LP, %RSP_LP
movq %r9,%rbp
+ LIBC_PROBE (longjmp_target, 3,
+ LP_SIZE@%RDI_LP, -4@%eax, LP_SIZE@%RDX_LP)
jmpq *%rdx
END (____longjmp_chk)