mirror of
https://github.com/jart/cosmopolitan.git
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108 lines
4.4 KiB
C
108 lines
4.4 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2024 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/sig.internal.h"
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#include "libc/intrin/pushpop.internal.h"
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#include "libc/nt/enum/signal.h"
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#include "libc/nt/enum/status.h"
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#include "libc/nt/struct/ntexceptionpointers.h"
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// this is all a mandatory dependency of winmain
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// so, we trade away maintanibility for tininess
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// see libc/sysv/consts.sh for canonical magnums
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#define SIGILL_ pushpop(4)
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#define SIGTRAP_ pushpop(5)
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#define SIGABRT_ pushpop(6)
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#define SIGFPE_ pushpop(8)
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#define SIGSEGV_ pushpop(11)
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#define SIGSYS_ pushpop(31)
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#define TRAP_BRKPT_ pushpop(1)
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#define ILL_ILLOPC_ pushpop(1)
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#define ILL_PRVOPC_ pushpop(5)
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#define SEGV_MAPERR_ pushpop(1)
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#define SEGV_ACCERR_ pushpop(2)
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#define SI_USER_ pushpop(0)
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#define FPE_FLTDIV_ pushpop(3)
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#define FPE_FLTOVF_ pushpop(4)
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#define FPE_INTOVF_ pushpop(2)
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#define FPE_FLTUND_ pushpop(5)
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#define FPE_FLTRES_ pushpop(6)
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#define FPE_FLTINV_ pushpop(7)
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#define SI_KERNEL_ 0x80
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textwindows int __sig_crash_sig(struct NtExceptionPointers *ep, int *code) {
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switch (ep->ExceptionRecord->ExceptionCode) {
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case kNtSignalBreakpoint:
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*code = TRAP_BRKPT_;
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return SIGTRAP_;
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case kNtSignalIllegalInstruction:
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*code = ILL_ILLOPC_;
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return SIGILL_;
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case kNtSignalPrivInstruction:
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*code = ILL_PRVOPC_;
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return SIGILL_;
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case kNtSignalInPageError:
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case kNtStatusStackOverflow:
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*code = SEGV_MAPERR_;
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return SIGSEGV_;
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case kNtSignalGuardPage:
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case kNtSignalAccessViolation:
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*code = SEGV_ACCERR_;
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return SIGSEGV_;
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case kNtSignalInvalidHandle:
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case kNtSignalInvalidParameter:
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case kNtSignalAssertionFailure:
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*code = SI_USER_;
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return SIGABRT_;
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case kNtStatusIntegerOverflow:
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*code = FPE_INTOVF_;
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return SIGFPE_;
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case kNtSignalFltDivideByZero:
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*code = FPE_FLTDIV_;
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return SIGFPE_;
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case kNtSignalFltOverflow:
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*code = FPE_FLTOVF_;
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return SIGFPE_;
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case kNtSignalFltUnderflow:
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*code = FPE_FLTUND_;
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return SIGFPE_;
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case kNtSignalFltInexactResult:
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*code = FPE_FLTRES_;
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return SIGFPE_;
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case kNtSignalFltDenormalOperand:
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case kNtSignalFltInvalidOperation:
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case kNtSignalFltStackCheck:
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case kNtSignalIntegerDivideByZero:
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case kNtSignalFloatMultipleFaults:
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case kNtSignalFloatMultipleTraps:
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*code = FPE_FLTINV_;
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return SIGFPE_;
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case kNtSignalDllNotFound:
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case kNtSignalOrdinalNotFound:
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case kNtSignalEntrypointNotFound:
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case kNtSignalDllInitFailed:
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*code = SI_KERNEL_;
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return SIGSYS_;
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default:
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*code = ep->ExceptionRecord->ExceptionCode;
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return SIGSEGV_;
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}
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}
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