81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright:
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* 2011-2016, Danny Robson <danny@nerdcruft.net>
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*/
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#include "./debug.hpp"
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#include "./log.hpp"
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#include <unistd.h>
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#include <sys/ptrace.h>
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#include <signal.h>
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///////////////////////////////////////////////////////////////////////////////
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void
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breakpoint (void)
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{
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#if defined (__x86_64) || defined (__i386)
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__asm__ ("int $3;");
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#else
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raise (SIGINT);
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#endif
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}
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///////////////////////////////////////////////////////////////////////////////
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void
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prepare_debugger (void)
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{
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;
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}
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//-----------------------------------------------------------------------------
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void
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await_debugger (void)
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{
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if (ptrace (PTRACE_TRACEME))
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LOG_CRITICAL ("unable to wait for debugger");
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}
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///////////////////////////////////////////////////////////////////////////////
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#include <fenv.h>
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void
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enable_fpe (void)
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{
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feenableexcept (FE_DIVBYZERO | FE_INVALID);
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}
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//-----------------------------------------------------------------------------
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void
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disable_fpe (void)
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{
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feenableexcept (0);
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}
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///////////////////////////////////////////////////////////////////////////////
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void
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force_console (void)
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{
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if (!isatty (fileno (stdout))) {
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LOG_ERROR ("expected debugging under a console");
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}
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}
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