diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/exc2signal.c')
-rw-r--r-- | sysdeps/mach/hurd/i386/exc2signal.c | 95 |
1 files changed, 47 insertions, 48 deletions
diff --git a/sysdeps/mach/hurd/i386/exc2signal.c b/sysdeps/mach/hurd/i386/exc2signal.c index 19f845a49e..10fe500f82 100644 --- a/sysdeps/mach/hurd/i386/exc2signal.c +++ b/sysdeps/mach/hurd/i386/exc2signal.c @@ -1,5 +1,5 @@ /* Translate Mach exception codes into signal numbers. i386 version. -Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc. +Copyright (C) 1991, 1992, 1994, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -25,48 +25,47 @@ Cambridge, MA 02139, USA. */ into a signal number and signal subcode. */ void -_hurd_exception2signal (int exception, int code, int subcode, - int *signo, long int *sigcode, int *error) +_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo) { - *error = 0; + detail->error = 0; - switch (exception) + switch (detail->exc) { default: *signo = SIGIOT; - *sigcode = exception; + detail->code = detail->exc; break; - + case EXC_BAD_ACCESS: - if (code == KERN_PROTECTION_FAILURE) + if (detail->exc_code == KERN_PROTECTION_FAILURE) *signo = SIGSEGV; else *signo = SIGBUS; - *sigcode = subcode; - *error = code; + detail->code = detail->exc_subcode; + detail->error = detail->exc_code; break; case EXC_BAD_INSTRUCTION: *signo = SIGILL; - if (code == EXC_I386_INVOP) - *sigcode = ILL_INVOPR_FAULT; - else if (code == EXC_I386_STKFLT) - *sigcode = ILL_STACK_FAULT; + if (detail->exc_code == EXC_I386_INVOP) + detail->code = ILL_INVOPR_FAULT; + else if (detail->exc_code == EXC_I386_STKFLT) + detail->code = ILL_STACK_FAULT; else - *sigcode = 0; + detail->code = 0; break; - + case EXC_ARITHMETIC: - switch (code) + switch (detail->exc_code) { case EXC_I386_DIV: /* integer divide by zero */ *signo = SIGFPE; - *sigcode = FPE_INTDIV_FAULT; + detail->code = FPE_INTDIV_FAULT; break; - + case EXC_I386_INTO: /* integer overflow */ *signo = SIGFPE; - *sigcode = FPE_INTOVF_TRAP; + detail->code = FPE_INTOVF_TRAP; break; /* These aren't anywhere documented or used in Mach 3.0. */ @@ -74,92 +73,92 @@ _hurd_exception2signal (int exception, int code, int subcode, case EXC_I386_EXTOVR: default: *signo = SIGFPE; - *sigcode = 0; + detail->code = 0; break; case EXC_I386_EXTERR: /* Subcode is the fp_status word saved by the hardware. Give an error code corresponding to the first bit set. */ - if (subcode & FPS_IE) + if (detail->exc_subcode & FPS_IE) { *signo = SIGILL; - *sigcode = ILL_FPEOPR_FAULT; + detail->code = ILL_FPEOPR_FAULT; } - else if (subcode & FPS_DE) + else if (detail->exc_subcode & FPS_DE) { *signo = SIGFPE; - *sigcode = FPE_FLTDNR_FAULT; + detail->code = FPE_FLTDNR_FAULT; } - else if (subcode & FPS_ZE) + else if (detail->exc_subcode & FPS_ZE) { *signo = SIGFPE; - *sigcode = FPE_FLTDIV_FAULT; + detail->code = FPE_FLTDIV_FAULT; } - else if (subcode & FPS_OE) + else if (detail->exc_subcode & FPS_OE) { *signo = SIGFPE; - *sigcode = FPE_FLTOVF_FAULT; + detail->code = FPE_FLTOVF_FAULT; } - else if (subcode & FPS_UE) + else if (detail->exc_subcode & FPS_UE) { *signo = SIGFPE; - *sigcode = FPE_FLTUND_FAULT; + detail->code = FPE_FLTUND_FAULT; } - else if (subcode & FPS_PE) + else if (detail->exc_subcode & FPS_PE) { *signo = SIGFPE; - *sigcode = FPE_FLTINX_FAULT; + detail->code = FPE_FLTINX_FAULT; } else { *signo = SIGFPE; - *sigcode = 0; + detail->code = 0; } break; - /* These two can only be arithmetic exceptions if we + /* These two can only be arithmetic exceptions if we are in V86 mode, which sounds like emulation to me. (See Mach 3.0 i386/trap.c.) */ case EXC_I386_EMERR: *signo = SIGFPE; - *sigcode = FPE_EMERR_FAULT; + detail->code = FPE_EMERR_FAULT; break; case EXC_I386_BOUND: *signo = SIGFPE; - *sigcode = FPE_EMBND_FAULT; + detail->code = FPE_EMBND_FAULT; break; } break; - case EXC_EMULATION: + case EXC_EMULATION: /* 3.0 doesn't give this one, why, I don't know. */ *signo = SIGEMT; - *sigcode = 0; + detail->code = 0; break; case EXC_SOFTWARE: /* The only time we get this in Mach 3.0 is for an out of bounds trap. */ - if (code == EXC_I386_BOUND) + if (detail->exc_code == EXC_I386_BOUND) { *signo = SIGFPE; - *sigcode = FPE_SUBRNG_FAULT; + detail->code = FPE_SUBRNG_FAULT; } else { *signo = SIGEMT; - *sigcode = 0; + detail->code = 0; } break; - + case EXC_BREAKPOINT: *signo = SIGTRAP; - if (code == EXC_I386_SGL) - *sigcode = DBG_SINGLE_TRAP; - else if (code == EXC_I386_BPT) - *sigcode = DBG_BRKPNT_FAULT; + if (detail->exc_code == EXC_I386_SGL) + detail->code = DBG_SINGLE_TRAP; + else if (detail->exc_code == EXC_I386_BPT) + detail->code = DBG_BRKPNT_FAULT; else - *sigcode = 0; + detail->code = 0; break; } } |