sh: Add ptrace support for NOMMU debugging

Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index f7b22dd83b0c..3392e835a374 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -334,6 +334,14 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                                         [(addr - (long)&dummy->fpu) >> 2];
                 } else if (addr == (long) &dummy->u_fpvalid)
                         tmp = !!tsk_used_math(child);
+                else if (addr == PT_TEXT_ADDR)
+                        tmp = child->mm->start_code;
+                else if (addr == PT_DATA_ADDR)
+                        tmp = child->mm->start_data;
+                else if (addr == PT_TEXT_END_ADDR)
+                        tmp = child->mm->end_code;
+                else if (addr == PT_TEXT_LEN)
+                        tmp = child->mm->end_code - child->mm->start_code;
                 else
                         tmp = 0;
                 ret = put_user(tmp, datap);