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 <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
git-mirror · Jan 30, 2008 · 0fa376e · 0fa376e
1 parent 1ecc798
commit 0fa376e
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diff --git 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
@@ -78,4 +78,6 @@
 # define PTRACE_SYSEMU_SINGLESTEP 32
 #endif
 
+#define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
+
 #endif
-Original file line number
+Diff line change
@@ Expand Up / @@ -78,4 +78,6 @@ @@
     # define PTRACE_SYSEMU_SINGLESTEP 32
     #endif
+    #define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
     #endif