diff options
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r-- | arch/mips/kernel/traps.c | 16 | ||||
-rw-r--r-- | arch/mips/kernel/unaligned.c | 12 |
2 files changed, 16 insertions, 12 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 3f6de76d485d..353056110f2b 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c | |||
@@ -32,6 +32,7 @@ | |||
32 | #include <asm/cpu.h> | 32 | #include <asm/cpu.h> |
33 | #include <asm/dsp.h> | 33 | #include <asm/dsp.h> |
34 | #include <asm/fpu.h> | 34 | #include <asm/fpu.h> |
35 | #include <asm/fpu_emulator.h> | ||
35 | #include <asm/mipsregs.h> | 36 | #include <asm/mipsregs.h> |
36 | #include <asm/mipsmtregs.h> | 37 | #include <asm/mipsmtregs.h> |
37 | #include <asm/module.h> | 38 | #include <asm/module.h> |
@@ -722,6 +723,21 @@ static void do_trap_or_bp(struct pt_regs *regs, unsigned int code, | |||
722 | die_if_kernel("Kernel bug detected", regs); | 723 | die_if_kernel("Kernel bug detected", regs); |
723 | force_sig(SIGTRAP, current); | 724 | force_sig(SIGTRAP, current); |
724 | break; | 725 | break; |
726 | case BRK_MEMU: | ||
727 | /* | ||
728 | * Address errors may be deliberately induced by the FPU | ||
729 | * emulator to retake control of the CPU after executing the | ||
730 | * instruction in the delay slot of an emulated branch. | ||
731 | * | ||
732 | * Terminate if exception was recognized as a delay slot return | ||
733 | * otherwise handle as normal. | ||
734 | */ | ||
735 | if (do_dsemulret(regs)) | ||
736 | return; | ||
737 | |||
738 | die_if_kernel("Math emu break/trap", regs); | ||
739 | force_sig(SIGTRAP, current); | ||
740 | break; | ||
725 | default: | 741 | default: |
726 | scnprintf(b, sizeof(b), "%s instruction in kernel code", str); | 742 | scnprintf(b, sizeof(b), "%s instruction in kernel code", str); |
727 | die_if_kernel(b, regs); | 743 | die_if_kernel(b, regs); |
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index 20709669e592..bf4c4a979abb 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c | |||
@@ -499,22 +499,10 @@ sigill: | |||
499 | 499 | ||
500 | asmlinkage void do_ade(struct pt_regs *regs) | 500 | asmlinkage void do_ade(struct pt_regs *regs) |
501 | { | 501 | { |
502 | extern int do_dsemulret(struct pt_regs *); | ||
503 | unsigned int __user *pc; | 502 | unsigned int __user *pc; |
504 | mm_segment_t seg; | 503 | mm_segment_t seg; |
505 | 504 | ||
506 | /* | 505 | /* |
507 | * Address errors may be deliberately induced by the FPU emulator to | ||
508 | * retake control of the CPU after executing the instruction in the | ||
509 | * delay slot of an emulated branch. | ||
510 | */ | ||
511 | /* Terminate if exception was recognized as a delay slot return */ | ||
512 | if (do_dsemulret(regs)) | ||
513 | return; | ||
514 | |||
515 | /* Otherwise handle as normal */ | ||
516 | |||
517 | /* | ||
518 | * Did we catch a fault trying to load an instruction? | 506 | * Did we catch a fault trying to load an instruction? |
519 | * Or are we running in MIPS16 mode? | 507 | * Or are we running in MIPS16 mode? |
520 | */ | 508 | */ |