Now get_frame_info() wants to detect move sp instruction first. It
assumes that the save ra in the stack instruction can't happen
before allocating frame size space into the stack.
Signed-off-by: Franck Bui-Huu <vagabon.xyz@xxxxxxxxx>
---
arch/mips/kernel/process.c | 14 ++++++--------
1 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 8d0e4fa..333f0bb 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -317,17 +317,15 @@ static int get_frame_info(struct mips_fr
if (is_jal_jalr_jr_ins(ip))
break;
- if (is_sp_move_ins(ip)) {
- if (info->frame_size)
- continue;
- info->frame_size = - ip->i_format.simmediate;
+ if (!info->frame_size) {
+ if (is_sp_move_ins(ip))
+ info->frame_size = - ip->i_format.simmediate;
+ continue;
}
-
- if (is_ra_save_ins(ip)) {
- if (info->pc_offset != -1)
- continue;
+ if (info->pc_offset == -1 && is_ra_save_ins(ip)) {
info->pc_offset =
ip->i_format.simmediate / sizeof(long);
+ break;
}
}
if (info->frame_size && info->pc_offset >= 0) /* nested */
--
1.4.2.rc2
