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From: Jason Wessel <jason.wessel@windriver.com>
To: linux-kernel@vger.kernel.org
Cc: kgdb-bugreport@lists.sourceforge.net, mingo@elte.hu,
	Michal Simek <monstr@monstr.eu>,
	Jason Wessel <jason.wessel@windriver.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linuxppc-dev@ozlabs.org
Subject: [PATCH 10/15] powerpc: Replace hardcoded offset by BREAK_INSTR_SIZE
Date: Fri, 30 Jul 2010 14:17:31 -0500	[thread overview]
Message-ID: <1280517456-1167-11-git-send-email-jason.wessel@windriver.com> (raw)
In-Reply-To: <1280517456-1167-1-git-send-email-jason.wessel@windriver.com>

From: Michal Simek <monstr@monstr.eu>

kgdb_handle_breakpoint checks the first arch_kgdb_breakpoint
which is not known by gdb that's why is necessary jump over
it. The jump lenght is equal to BREAK_INSTR_SIZE that's
why is cleaner to use defined macro instead of hardcoded
non-described offset.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: linuxppc-dev@ozlabs.org
---
 arch/powerpc/kernel/kgdb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index 82a7b22..7f61a3a 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -129,7 +129,7 @@ static int kgdb_handle_breakpoint(struct pt_regs *regs)
 		return 0;
 
 	if (*(u32 *) (regs->nip) == *(u32 *) (&arch_kgdb_ops.gdb_bpt_instr))
-		regs->nip += 4;
+		regs->nip += BREAK_INSTR_SIZE;
 
 	return 1;
 }
-- 
1.6.4.rc1


  parent reply	other threads:[~2010-07-30 19:18 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-30 19:17 [PATCH 0/15] kgdb,kdb: proposed merge set for 2.6.36 Jason Wessel
2010-07-30 19:17 ` [PATCH 01/15] kgdb: remove custom hex_to_bin()implementation Jason Wessel
2010-07-30 19:17 ` [PATCH 02/15] gdbstub: Optimize kgdb's "thread:" response for the gdb serial protocol Jason Wessel
2010-07-30 19:17 ` [PATCH 03/15] kgdb,kdb: individual register set and and get API Jason Wessel
2010-07-30 19:17 ` [PATCH 04/15] x86,kgdb: Individual register get/set for x86 Jason Wessel
2010-07-30 23:29   ` H. Peter Anvin
2010-07-30 19:17 ` [PATCH 05/15] mips,kgdb: Individual register get/set for mips Jason Wessel
2010-08-02 13:30   ` Ralf Baechle
2010-07-30 19:17 ` [PATCH 06/15] arm,kgdb: Individual register get/set for arm Jason Wessel
2010-07-30 19:17 ` [PATCH 07/15] gdbstub,x86: Implement gdbserial 'p' and 'P' packets Jason Wessel
2010-07-30 19:17 ` [PATCH 08/15] gdbstub: do not directly use dbg_reg_def[] in gdb_cmd_reg_set() Jason Wessel
2010-07-30 19:17 ` [PATCH 09/15] arm,kgdb: Add ability to trap into debugger on notify_die Jason Wessel
2010-07-30 19:17 ` Jason Wessel [this message]
2010-07-30 23:44   ` [PATCH 10/15] powerpc: Replace hardcoded offset by BREAK_INSTR_SIZE Benjamin Herrenschmidt
2010-07-30 19:17 ` [PATCH 11/15] ftrace,kdb: Extend kdb to be able to dump the ftrace buffer Jason Wessel
2010-07-30 19:17 ` [PATCH 12/15] ftrace,kdb: Allow dumping a specific cpu's buffer with ftdump Jason Wessel
2010-07-30 19:17 ` [PATCH 13/15] KGDB: Remove set but unused newPC Jason Wessel
2010-07-30 19:17 ` [PATCH 14/15] sunhv,kgdboc: Add sunhv console poll hooks for kgdboc Jason Wessel
2010-07-30 19:17 ` [PATCH 15/15] mm,kdb,kgdb: Add a debug reference for the kdb kmap usage Jason Wessel

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