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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
/* Support code for standard wait macros in gdb_wait.h.
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Copyright (C) 2019-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "common-defs.h"
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#include "gdb_wait.h"
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#ifdef __MINGW32__
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/* The underlying idea is that when a Windows program is terminated by
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a fatal exception, its exit code is the value of that exception, as
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defined by the various EXCEPTION_* symbols in the Windows API
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headers. We thus emulate WTERMSIG etc. by translating the fatal
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exception codes to more-or-less equivalent Posix signals.
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The translation below is not perfect, because a program could
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legitimately exit normally with a status whose value happens to
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have the high bits set, but that's extremely rare, to say the
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least, and it is deemed such a negligibly small probability of
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false positives is justified by the utility of reporting the
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terminating signal in the "normal" cases. */
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# include <signal.h>
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h> /* for EXCEPTION_* constants */
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struct xlate_status
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{
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/* The exit status (actually, fatal exception code). */
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DWORD status;
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/* The corresponding signal value. */
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int sig;
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};
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int
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windows_status_to_termsig (unsigned long status)
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{
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static const xlate_status status_xlate_tbl[] =
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{
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{EXCEPTION_ACCESS_VIOLATION, SIGSEGV},
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{EXCEPTION_IN_PAGE_ERROR, SIGSEGV},
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{EXCEPTION_INVALID_HANDLE, SIGSEGV},
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{EXCEPTION_ILLEGAL_INSTRUCTION, SIGILL},
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{EXCEPTION_NONCONTINUABLE_EXCEPTION, SIGILL},
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{EXCEPTION_ARRAY_BOUNDS_EXCEEDED, SIGSEGV},
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{EXCEPTION_FLT_DENORMAL_OPERAND, SIGFPE},
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{EXCEPTION_FLT_DIVIDE_BY_ZERO, SIGFPE},
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{EXCEPTION_FLT_INEXACT_RESULT, SIGFPE},
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{EXCEPTION_FLT_INVALID_OPERATION, SIGFPE},
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{EXCEPTION_FLT_OVERFLOW, SIGFPE},
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{EXCEPTION_FLT_STACK_CHECK, SIGFPE},
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{EXCEPTION_FLT_UNDERFLOW, SIGFPE},
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{EXCEPTION_INT_DIVIDE_BY_ZERO, SIGFPE},
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{EXCEPTION_INT_OVERFLOW, SIGFPE},
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{EXCEPTION_PRIV_INSTRUCTION, SIGILL},
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{EXCEPTION_STACK_OVERFLOW, SIGSEGV},
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{CONTROL_C_EXIT, SIGTERM}
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};
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for (const xlate_status &x : status_xlate_tbl)
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if (x.status == status)
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return x.sig;
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return -1;
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}
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#endif /* __MINGW32__ */
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