From 94e3d923592fcfe5585c18a0af9b196de0a13072 Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Mon, 1 Feb 2016 17:03:25 +1100 Subject: [PATCH] powerpc: Fix kgdb on little endian ppc64le I spent some time trying to use kgdb and debugged my inability to resume from kgdb_handle_breakpoint(). NIP is not incremented and that leads to a loop in the debugger. I've tested this lightly on a virtual instance with KDB enabled. After the patch, I am able to get the "go" command to work as expected. Signed-off-by: Balbir Singh Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/kgdb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c index e77c3ccf8dcf..dbf098121ce6 100644 --- a/arch/powerpc/kernel/kgdb.c +++ b/arch/powerpc/kernel/kgdb.c @@ -445,7 +445,11 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code, * Global data */ struct kgdb_arch arch_kgdb_ops = { +#ifdef __LITTLE_ENDIAN__ + .gdb_bpt_instr = {0x08, 0x10, 0x82, 0x7d}, +#else .gdb_bpt_instr = {0x7d, 0x82, 0x10, 0x08}, +#endif }; static int kgdb_not_implemented(struct pt_regs *regs) -- 2.39.5