microblaze: Remove old user debugging gdb stub
Old gdb uses priviledged exception handler to handle
gdb exception. New gdb uses brki r16, 0x18 that's why
we can remove old gdb support.
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
index 7dd4d12..478f294 100644
--- a/arch/microblaze/kernel/exceptions.c
+++ b/arch/microblaze/kernel/exceptions.c
@@ -72,7 +72,6 @@
int fsr, int addr)
{
#ifdef CONFIG_MMU
- int code;
addr = regs->pc;
#endif
@@ -144,13 +143,7 @@
#ifdef CONFIG_MMU
case MICROBLAZE_PRIVILEGED_EXCEPTION:
pr_debug("Privileged exception\n");
- /* "brk r0,r0" - used as debug breakpoint - old toolchain */
- if (get_user(code, (unsigned long *)regs->pc) == 0
- && code == 0x980c0000) {
- _exception(SIGTRAP, regs, TRAP_BRKPT, addr);
- } else {
- _exception(SIGILL, regs, ILL_PRVOPC, addr);
- }
+ _exception(SIGILL, regs, ILL_PRVOPC, addr);
break;
#endif
default: