patch-uclinux-2.4.17-ptrace

来自「uClinux里自带的gdbserver在arm7tdmi下不能正常工作」· 17-PTRACE 代码 · 共 27 行

--- ptrace.c.orig	Mon Jul  1 04:17:20 2002
+++ ptrace.c	Fri Sep 20 15:58:45 2002
@@ -468,9 +468,23 @@
 			if ((addr & 3) || addr < 0 || addr >= sizeof(struct user))
 				break;
 
+#if 0
 			tmp = 0;  /* Default return condition */
 			if (addr < sizeof(struct pt_regs))
 				tmp = get_stack_long(child, (int)addr >> 2);
+#else
+			tmp = 0;  /* Default return condition */
+			if (addr < sizeof(struct pt_regs)) {
+			        tmp = get_stack_long(child, (int)addr >> 2);
+			} else if (addr == 4*49) {
+			        tmp = child->mm->start_code;
+                        } else if (addr == 4*50) {
+			        tmp = child->mm->start_data;
+                        } else if (addr == 4*51) {
+                                tmp = child->mm->end_code;
+                        } else
+                                break;
+#endif
 			ret = put_user(tmp, (unsigned long *)data);
 			break;