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Add minor improvements and cleanup

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This commit is contained in:
Justine Tunney 2020-10-27 03:39:46 -07:00
parent 9e3e985ae5
commit feed0d2b0e
163 changed files with 2286 additions and 2245 deletions
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79
libc/calls/wincrash.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/ucontext.h"
#include "libc/nt/enum/exceptionhandleractions.h"
#include "libc/nt/signals.h"
#include "libc/nt/struct/ntexceptionpointers.h"
#include "libc/nt/struct/ntexceptionrecord.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sig.h"
textwindows unsigned __wincrash(struct NtExceptionPointers *ep) {
int sig;
struct Goodies {
ucontext_t ctx;
struct siginfo si;
} g;
switch (ep->ExceptionRecord->ExceptionCode) {
case kNtSignalBreakpoint:
sig = SIGTRAP;
break;
case kNtSignalIllegalInstruction:
case kNtSignalPrivInstruction:
sig = SIGILL;
break;
case kNtSignalGuardPage:
case kNtSignalAccessViolation:
case kNtSignalInPageError:
sig = SIGSEGV;
break;
case kNtSignalInvalidHandle:
case kNtSignalInvalidParameter:
case kNtSignalAssertionFailure:
sig = SIGABRT;
break;
case kNtSignalFltDenormalOperand:
case kNtSignalFltDivideByZero:
case kNtSignalFltInexactResult:
case kNtSignalFltInvalidOperation:
case kNtSignalFltOverflow:
case kNtSignalFltStackCheck:
case kNtSignalFltUnderflow:
case kNtSignalIntegerDivideByZero:
case kNtSignalFloatMultipleFaults:
case kNtSignalFloatMultipleTraps:
sig = SIGFPE;
break;
case kNtSignalDllNotFound:
case kNtSignalOrdinalNotFound:
case kNtSignalEntrypointNotFound:
case kNtSignalDllInitFailed:
sig = SIGSYS;
break;
default:
return kNtExceptionContinueSearch;
}
memset(&g, 0, sizeof(g));
ntcontext2linux(&g.ctx, ep->ContextRecord);
return __sigenter(sig, &g.si, &g.ctx) ? kNtExceptionContinueExecution
: kNtExceptionContinueSearch;
}