Blackfin arch: add supporting for kgdb

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

2 files changed, 7 insertions, 6 deletions

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 90c7397036ed..5a219b228de3 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -190,8 +190,8 @@ ENTRY(_ex_single_step)
         if cc jump .Lfind_priority_done;
         jump.s .Lfind_priority_start;
 .Lfind_priority_done:
-        p4.l = _debugger_step;
-        p4.h = _debugger_step;
+        p4.l = _kgdb_single_step;
+        p4.h = _kgdb_single_step;
         r6 = [p4];
         cc = r6 == 0;
         if cc jump .Ldo_single_step;
@@ -1071,7 +1071,12 @@ ENTRY(_ex_table)
          */
         .long _ex_syscall       /* 0x00 - User Defined - Linux Syscall */
         .long _ex_soft_bp       /* 0x01 - User Defined - Software breakpoint */
+#ifdef  CONFIG_KGDB
+        .long _ex_trap_c        /* 0x02 - User Defined - KGDB initial connection
+                                                         and break signal trap */
+#else
         .long _ex_replaceable   /* 0x02 - User Defined */
+#endif
         .long _ex_trap_c        /* 0x03 - User Defined - userspace stack overflow */
         .long _ex_trap_c        /* 0x04 - User Defined - dump trace buffer */
         .long _ex_replaceable   /* 0x05 - User Defined */
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 5fa536727c61..ff4d5c2879a5 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -1136,8 +1136,4 @@ void do_irq(int vec, struct pt_regs *fp)
                 vec = ivg->irqno;
         }
         asm_do_IRQ(vec, fp);
-
-#ifdef CONFIG_KGDB
-        kgdb_process_breakpoint();
-#endif
 }