---

yaml --- r: 160818 b: refs/heads/master c: 68b7f71 h: refs/heads/master v: v3
git-mirror · Jul 24, 2009 · 3ba2bce · 3ba2bce
1 parent 6e33358
commit 3ba2bce
Show file tree

Hide file tree

Showing 3 changed files with 16 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5d57795e26c413656725c26bd053dbee3711adee
+refs/heads/master: 68b7f7153fa58df710924fbb79722717d2d16094
diff --git a/trunk/arch/arm/include/asm/ptrace.h b/trunk/arch/arm/include/asm/ptrace.h
@@ -82,6 +82,14 @@
 #define PSR_ENDSTATE	0
 #endif
 
+/* 
+ * These are 'magic' values for PTRACE_PEEKUSR that return info about where a
+ * process is located in memory.
+ */
+#define PT_TEXT_ADDR		0x10000
+#define PT_DATA_ADDR		0x10004
+#define PT_TEXT_END_ADDR	0x10008
+
 #ifndef __ASSEMBLY__
 
 /*

diff --git a/trunk/arch/arm/kernel/ptrace.c b/trunk/arch/arm/kernel/ptrace.c
@@ -521,7 +521,13 @@ static int ptrace_read_user(struct task_struct *tsk, unsigned long off,
 		return -EIO;
 
 	tmp = 0;
-	if (off < sizeof(struct pt_regs))
+	if (off == PT_TEXT_ADDR)
+		tmp = tsk->mm->start_code;
+	else if (off == PT_DATA_ADDR)
+		tmp = tsk->mm->start_data;
+	else if (off == PT_TEXT_END_ADDR)
+		tmp = tsk->mm->end_code;
+	else if (off < sizeof(struct pt_regs))
 		tmp = get_user_reg(tsk, off >> 2);
 
 	return put_user(tmp, ret);