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Message-ID: <1382520685-11609-4-git-send-email-tiejun.chen@windriver.com> Date: Wed, 23 Oct 2013 17:31:23 +0800 From: Tiejun Chen <tiejun.chen@...driver.com> To: <scottwood@...escale.com> CC: <benh@...nel.crashing.org>, <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org> Subject: [v6][PATCH 3/5] powerpc/book3e: support kgdb for kernel space Currently we need to skip this for supporting KGDB. Signed-off-by: Tiejun Chen <tiejun.chen@...driver.com> --- arch/powerpc/kernel/exceptions-64e.S | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index a55cf62..0b750c6 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -597,11 +597,13 @@ kernel_dbg_exc: rfdi /* Normal debug exception */ +1: andi. r14,r11,MSR_PR; /* check for userspace again */ +#ifndef CONFIG_KGDB /* XXX We only handle coming from userspace for now since we can't * quite save properly an interrupted kernel state yet */ -1: andi. r14,r11,MSR_PR; /* check for userspace again */ beq kernel_dbg_exc; /* if from kernel mode */ +#endif /* Now we mash up things to make it look like we are coming on a * normal exception -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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