Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0fa376e027f0bd71368e1485f863f0dff8f7c897
Commit:     0fa376e027f0bd71368e1485f863f0dff8f7c897
Parent:     1ecc798c67645e0ee6eb028cb988b71b3edf4b40
Author:     Roland McGrath <[EMAIL PROTECTED]>
AuthorDate: Wed Jan 30 13:30:55 2008 +0100
Committer:  Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Wed Jan 30 13:30:55 2008 +0100

    x86: PTRACE_SINGLEBLOCK
    
    This adds the PTRACE_SINGLEBLOCK request on x86, matching the ia64 feature.
    The implementation comes from the generic ptrace code and relies on the
    low-level machine support provided by arch_has_block_step() et al.
    
    Signed-off-by: Roland McGrath <[EMAIL PROTECTED]>
    Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
    Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]>
---
 arch/x86/ia32/ptrace32.c     |    1 +
 include/asm-x86/ptrace-abi.h |    2 ++
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/x86/ia32/ptrace32.c b/arch/x86/ia32/ptrace32.c
index 5ababea..8c6fb9d 100644
--- a/arch/x86/ia32/ptrace32.c
+++ b/arch/x86/ia32/ptrace32.c
@@ -227,6 +227,7 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 
addr, u32 data)
        case PTRACE_KILL:
        case PTRACE_CONT:
        case PTRACE_SINGLESTEP:
+       case PTRACE_SINGLEBLOCK:
        case PTRACE_DETACH:
        case PTRACE_SYSCALL:
        case PTRACE_OLDSETOPTIONS:
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h
index 7524e12..adce6b5 100644
--- a/include/asm-x86/ptrace-abi.h
+++ b/include/asm-x86/ptrace-abi.h
@@ -78,4 +78,6 @@
 # define PTRACE_SYSEMU_SINGLESTEP 32
 #endif
 
+#define PTRACE_SINGLEBLOCK     33      /* resume execution until next branch */
+
 #endif
-
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