diff options
Diffstat (limited to 'arch/alpha/kernel/traps.c')
| -rw-r--r-- | arch/alpha/kernel/traps.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 7004397937cf..7631129ac914 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -30,6 +30,12 @@ #include "proto.h" +static __always_inline void alpha_snapshot_usp(struct pt_regs *regs) +{ + if (user_mode(regs)) + regs->usp = rdusp(); +} + void dik_show_regs(struct pt_regs *regs, unsigned long *r9_15) { @@ -180,6 +186,7 @@ do_entArith(unsigned long summary, unsigned long write_mask, { long si_code = FPE_FLTINV; + alpha_snapshot_usp(regs); if (summary & 1) { /* Software-completion summary bit is set, so try to emulate the instruction. If the processor supports @@ -201,6 +208,7 @@ do_entIF(unsigned long type, struct pt_regs *regs) { int signo, code; + alpha_snapshot_usp(regs); if (type == 3) { /* FEN fault */ /* Irritating users can call PAL_clrfen to disable the FPU for the process. The kernel will then trap in |