xtensa: remove remaining non-functional KGDB bits

KGDB is not supported on xtensa, but there are bits of related code
under arch/xtensa/kernel. Remove these bits.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile
index 4db730290d2ddc7bbf373b10b441c177017bfaf8..17fa04dce3ba3a41eb03e0acd83873a402dc7876 100644 (file)
--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -8,7 +8,6 @@ obj-y := align.o coprocessor.o entry.o irq.o pci-dma.o platform.o process.o \
         ptrace.o setup.o signal.o stacktrace.o syscall.o time.o traps.o \
         vectors.o
 
-obj-$(CONFIG_KGDB) += xtensa-stub.o
 obj-$(CONFIG_PCI) += pci.o
 obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o
 obj-$(CONFIG_FUNCTION_TRACER) += mcount.o

diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index be0cae8082c71be5d42c6b5ecf02991cd67c7ec6..a8b8dae4139a0dc50980f12face7cd8aeb33bf04 100644 (file)
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -40,11 +40,6 @@
 #include <asm/processor.h>
 #include <asm/traps.h>
 
-#ifdef CONFIG_KGDB
-extern int gdb_enter;
-extern int return_from_debug_flag;
-#endif
-
 /*
  * Machine specific interrupt handlers
  */
@@ -344,20 +339,6 @@ do_unaligned_user (struct pt_regs *regs)
 void
 do_debug(struct pt_regs *regs)
 {
-#ifdef CONFIG_KGDB
-       /* If remote debugging is configured AND enabled, we give control to
-        * kgdb.  Otherwise, we fall through, perhaps giving control to the
-        * native debugger.
-        */
-
-       if (gdb_enter) {
-               extern void gdb_handle_exception(struct pt_regs *);
-               gdb_handle_exception(regs);
-               return_from_debug_flag = 1;
-               return;
-       }
-#endif
-
        __die_if_kernel("Breakpoint in kernel", regs, SIGKILL);
 
        /* If in user mode, send SIGTRAP signal to current process */