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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>
This commit is contained in:
Max Filippov 2016-01-25 09:57:31 +03:00 committed by Chris Zankel
parent 7de7ac785a
commit 816aa58895
2 changed files with 0 additions and 20 deletions
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1
arch/xtensa/kernel/Makefile
View File

@ -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 \ ptrace.o setup.o signal.o stacktrace.o syscall.o time.o traps.o \
vectors.o vectors.o
obj-$(CONFIG_KGDB) += xtensa-stub.o
obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o
obj-$(CONFIG_FUNCTION_TRACER) += mcount.o obj-$(CONFIG_FUNCTION_TRACER) += mcount.o

19
arch/xtensa/kernel/traps.c
View File

@ -40,11 +40,6 @@
#include <asm/processor.h> #include <asm/processor.h>
#include <asm/traps.h> #include <asm/traps.h>
#ifdef CONFIG_KGDB
extern int gdb_enter;
extern int return_from_debug_flag;
#endif
/* /*
* Machine specific interrupt handlers * Machine specific interrupt handlers
*/ */
@ -344,20 +339,6 @@ do_unaligned_user (struct pt_regs *regs)
void void
do_debug(struct pt_regs *regs) 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); __die_if_kernel("Breakpoint in kernel", regs, SIGKILL);
/* If in user mode, send SIGTRAP signal to current process */ /* If in user mode, send SIGTRAP signal to current process */