diff options
| -rw-r--r-- | include/asm-sparc/sfp-machine.h | 6 | ||||
| -rw-r--r-- | include/asm-sparc64/sfp-machine.h | 2 | ||||
| -rw-r--r-- | include/math-emu/op-common.h | 5 | ||||
| -rw-r--r-- | include/math-emu/soft-fp.h | 7 |
4 files changed, 19 insertions, 1 deletions
diff --git a/include/asm-sparc/sfp-machine.h b/include/asm-sparc/sfp-machine.h index ecfc86a..266a42b 100644 --- a/include/asm-sparc/sfp-machine.h +++ b/include/asm-sparc/sfp-machine.h @@ -203,4 +203,10 @@ extern struct task_struct *last_task_used_math; #define FP_INHIBIT_RESULTS ((last_task_used_math->thread.fsr >> 23) & _fex) #endif +#ifdef CONFIG_SMP +#define FP_TRAPPING_EXCEPTIONS ((current->thread.fsr >> 23) & 0x1f) +#else +#define FP_TRAPPING_EXCEPTIONS ((last_task_used_math->thread.fsr >> 23) & 0x1f) +#endif + #endif diff --git a/include/asm-sparc64/sfp-machine.h b/include/asm-sparc64/sfp-machine.h index 89d4243..c9331b0 100644 --- a/include/asm-sparc64/sfp-machine.h +++ b/include/asm-sparc64/sfp-machine.h @@ -88,4 +88,6 @@ #define FP_INHIBIT_RESULTS ((current_thread_info()->xfsr[0] >> 23) & _fex) +#define FP_TRAPPING_EXCEPTIONS ((current_thread_info()->xfsr[0] >> 23) & 0x1f) + #endif diff --git a/include/math-emu/op-common.h b/include/math-emu/op-common.h index 93780ab..bb46e76 100644 --- a/include/math-emu/op-common.h +++ b/include/math-emu/op-common.h @@ -145,13 +145,16 @@ do { \ { \ X##_e = 1; \ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ } \ else \ { \ X##_e = 0; \ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ - FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ } \ + if ((FP_CUR_EXCEPTIONS & FP_EX_INEXACT) || \ + (FP_TRAPPING_EXCEPTIONS & FP_EX_UNDERFLOW)) \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ } \ else \ { \ diff --git a/include/math-emu/soft-fp.h b/include/math-emu/soft-fp.h index d02eb64..a0721ef 100644 --- a/include/math-emu/soft-fp.h +++ b/include/math-emu/soft-fp.h @@ -97,12 +97,19 @@ #define FP_INHIBIT_RESULTS 0 #endif +#ifndef FP_TRAPPING_EXCEPTIONS +#define FP_TRAPPING_EXCPETIONS 0 +#endif + #define FP_SET_EXCEPTION(ex) \ _fex |= (ex) #define FP_UNSET_EXCEPTION(ex) \ _fex &= ~(ex) +#define FP_CUR_EXCEPTIONS \ + (_fex) + #define FP_CLEAR_EXCEPTIONS \ _fex = 0 |
