diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-22 23:09:07 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-22 23:09:07 +0100 |
| commit | 3ad55155b222f2a901405dea20ff7c68828ecd92 (patch) | |
| tree | 53b24c981387b037084a333dc5ae23be8e82ef4a /arch/arm/kernel/traps.c | |
| parent | 06f365acef5ca54fd5708a0d853c4a89609536f1 (diff) | |
| parent | 6645cb61f3a1186a71475385d33f875dd8fb38bf (diff) | |
Merge branch 'devel-stable' into for-next
Conflicts:
arch/arm/kernel/entry-armv.S
Diffstat (limited to 'arch/arm/kernel/traps.c')
| -rw-r--r-- | arch/arm/kernel/traps.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 6807cb1e76d..2d3436e9f71 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -355,9 +355,24 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) pc = (void __user *)instruction_pointer(regs); if (processor_mode(regs) == SVC_MODE) { - instr = *(u32 *) pc; +#ifdef CONFIG_THUMB2_KERNEL + if (thumb_mode(regs)) { + instr = ((u16 *)pc)[0]; + if (is_wide_instruction(instr)) { + instr <<= 16; + instr |= ((u16 *)pc)[1]; + } + } else +#endif + instr = *(u32 *) pc; } else if (thumb_mode(regs)) { get_user(instr, (u16 __user *)pc); + if (is_wide_instruction(instr)) { + unsigned int instr2; + get_user(instr2, (u16 __user *)pc+1); + instr <<= 16; + instr |= instr2; + } } else { get_user(instr, (u32 __user *)pc); } |