Commit 27707d3e authored by Sonic Zhang's avatar Sonic Zhang Committed by Bryan Wu
Browse files

Blackfin arch: Fix bug - kernel build with config kernel debugging with remote gdb fails 



 Add some comment and fix duplicated VEC_EXCPT02

Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent 5e9e7687

arch/blackfin/kernel/traps.c

+9 −12
Original line number Diff line number Diff line
@@ -284,15 +284,6 @@ asmlinkage void trap_c(struct pt_regs *fp) 
			return;

		else

			break;

#ifdef CONFIG_KGDB

	case VEC_EXCPT02 :		 /* gdb connection */

		info.si_code = TRAP_ILLTRAP;

		sig = SIGTRAP;

		CHK_DEBUGGER_TRAP();

		return;

#else

	/* 0x02 - User Defined, Caught by default */

#endif

	/* 0x03 - User Defined, userspace stack overflow */

	case VEC_EXCPT03:

		info.si_code = SEGV_STACKFLOW;
@@ -300,6 +291,14 @@ asmlinkage void trap_c(struct pt_regs *fp) 
		printk(KERN_NOTICE EXC_0x03(KERN_NOTICE));

		CHK_DEBUGGER_TRAP_MAYBE();

		break;

	/* 0x02 - KGDB initial connection and break signal trap */

	case VEC_EXCPT02:

#ifdef CONFIG_KGDB

		info.si_code = TRAP_ILLTRAP;

		sig = SIGTRAP;

		CHK_DEBUGGER_TRAP();

		return;

#endif

	/* 0x04 - User Defined */

	/* 0x05 - User Defined */

	/* 0x06 - User Defined */
@@ -312,11 +311,9 @@ asmlinkage void trap_c(struct pt_regs *fp) 
	/* 0x0D - User Defined */

	/* 0x0E - User Defined */

	/* 0x0F - User Defined */

	/*

	 * If we got here, it is most likely that someone was trying to use a

	/* If we got here, it is most likely that someone was trying to use a

	 * custom exception handler, and it is not actually installed properly

	 */

	case VEC_EXCPT02:

	case VEC_EXCPT04 ... VEC_EXCPT15:

		info.si_code = ILL_ILLPARAOP;

		sig = SIGILL;