[linuxsh-dev] ptrace fixes

[NIIBE Y. <gn...@ch...>]

ptrace does not work yet.  We need following patch.  But still GDB not worked.

--------------------------
2000-06-08  NIIBE Yutaka  <gn...@m1...>

	* arch/sh/kernel/ptrace.c (sys_ptrace): Bug fix.  Change the
	last argument of access_process_vm.

	(ubc_set_tracing): Handle SH7709's UBC. I don't know it's right.
	I see SH7729 manual.

Index: arch/sh/kernel/ptrace.c
===================================================================
RCS file: /cvsroot/linuxsh/kernel/arch/sh/kernel/ptrace.c,v
retrieving revision 1.5
diff -u -r1.5 ptrace.c
--- arch/sh/kernel/ptrace.c	2000/05/09 01:42:21	1.5
+++ arch/sh/kernel/ptrace.c	2000/06/08 09:21:46
@@ -10,6 +10,7 @@
  *
  */
 
+#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
@@ -121,13 +122,21 @@
 {
 	ctrl_outl(nextpc1, UBC_BARA);
 	ctrl_outb(asid, UBC_BASRA);
+#if defined(CONFIG_CPU_SUBTYPE_SH7709)
+	ctrl_outl(0x0fff, UBC_BAMRA);
+#else
 	ctrl_outb(BAMR_12, UBC_BAMRA);
+#endif
 	ctrl_outw(BBR_INST | BBR_READ, UBC_BBRA);
 
 	if (nextpc2 != (unsigned long) -1) {
 		ctrl_outl(nextpc2, UBC_BARB);
 		ctrl_outb(asid, UBC_BASRB);
+#if defined(CONFIG_CPU_SUBTYPE_SH7709)
+		ctrl_outl(0x0fff, UBC_BAMRA);
+#else
 		ctrl_outb(BAMR_12, UBC_BAMRB);
+#endif
 		ctrl_outw(BBR_INST | BBR_READ, UBC_BBRB);
 	}
 	ctrl_outw(BRCR_PCBA | BRCR_PCBB, UBC_BRCR);
@@ -322,7 +331,7 @@
 		/* Compute next pc.  */
 		pc = get_stack_long(child, (long)&dummy->pc);
 		regs = (struct pt_regs *)((unsigned long)child + THREAD_SIZE - sizeof(struct pt_regs));
-		if (access_process_vm(child, pc&~3, &tmp, sizeof(tmp), 1) != sizeof(data))
+		if (access_process_vm(child, pc&~3, &tmp, sizeof(tmp), 0) != sizeof(tmp))
 			break;
  
 #ifdef  __LITTLE_ENDIAN__