From: David S. Miller <davem@sunset.davemloft.net>
Date: Sun, 2 Apr 2006 07:28:10 +0000 (-0800)
Subject: [SPARC64]: Add dummy PTRACE_PEEKUSR for gdb.
X-Git-Tag: v2.6.17-rc2~297
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1759e58ed2684b7a01cbb96864f23d18884f42ba;p=linux-2.6

[SPARC64]: Add dummy PTRACE_PEEKUSR for gdb.

GDB uses a PTRACE_PEEKUSR call with offset 0 to see
if a thread is alive, so provide a success return for
this particular special case.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index eb93e9c528..c910af5e25 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -244,6 +244,13 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
 	}
 
 	switch(request) {
+	case PTRACE_PEEKUSR:
+		if (addr != 0)
+			pt_error_return(regs, EIO);
+		else
+			pt_succ_return(regs, 0);
+		goto out_tsk;
+
 	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
 	case PTRACE_PEEKDATA: {
 		unsigned long tmp64;