mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-25 14:56:10 +01:00
114 lines
3.8 KiB
C++
114 lines
3.8 KiB
C++
/*
|
|
* Created by Phil on 27/12/2010.
|
|
* Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
|
|
*
|
|
* Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
*
|
|
*/
|
|
|
|
#include "catch_debugger.h"
|
|
#include "catch_errno_guard.h"
|
|
#include "catch_stream.h"
|
|
#include "catch_platform.h"
|
|
|
|
#ifdef CATCH_PLATFORM_MAC
|
|
|
|
# include <assert.h>
|
|
# include <stdbool.h>
|
|
# include <sys/types.h>
|
|
# include <unistd.h>
|
|
# include <sys/sysctl.h>
|
|
# include <cstddef>
|
|
# include <ostream>
|
|
|
|
namespace Catch {
|
|
|
|
// The following function is taken directly from the following technical note:
|
|
// http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html
|
|
|
|
// Returns true if the current process is being debugged (either
|
|
// running under the debugger or has a debugger attached post facto).
|
|
bool isDebuggerActive(){
|
|
|
|
int mib[4];
|
|
struct kinfo_proc info;
|
|
std::size_t size;
|
|
|
|
// Initialize the flags so that, if sysctl fails for some bizarre
|
|
// reason, we get a predictable result.
|
|
|
|
info.kp_proc.p_flag = 0;
|
|
|
|
// Initialize mib, which tells sysctl the info we want, in this case
|
|
// we're looking for information about a specific process ID.
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_PROC;
|
|
mib[2] = KERN_PROC_PID;
|
|
mib[3] = getpid();
|
|
|
|
// Call sysctl.
|
|
|
|
size = sizeof(info);
|
|
if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
|
|
Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
|
|
return false;
|
|
}
|
|
|
|
// We're being debugged if the P_TRACED flag is set.
|
|
|
|
return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
|
|
}
|
|
} // namespace Catch
|
|
|
|
#elif defined(CATCH_PLATFORM_LINUX)
|
|
#include <fstream>
|
|
#include <string>
|
|
|
|
namespace Catch{
|
|
// The standard POSIX way of detecting a debugger is to attempt to
|
|
// ptrace() the process, but this needs to be done from a child and not
|
|
// this process itself to still allow attaching to this process later
|
|
// if wanted, so is rather heavy. Under Linux we have the PID of the
|
|
// "debugger" (which doesn't need to be gdb, of course, it could also
|
|
// be strace, for example) in /proc/$PID/status, so just get it from
|
|
// there instead.
|
|
bool isDebuggerActive(){
|
|
// Libstdc++ has a bug, where std::ifstream sets errno to 0
|
|
// This way our users can properly assert over errno values
|
|
ErrnoGuard guard;
|
|
std::ifstream in("/proc/self/status");
|
|
for( std::string line; std::getline(in, line); ) {
|
|
static const int PREFIX_LEN = 11;
|
|
if( line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0 ) {
|
|
// We're traced if the PID is not 0 and no other PID starts
|
|
// with 0 digit, so it's enough to check for just a single
|
|
// character.
|
|
return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
} // namespace Catch
|
|
#elif defined(_MSC_VER)
|
|
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
|
|
namespace Catch {
|
|
bool isDebuggerActive() {
|
|
return IsDebuggerPresent() != 0;
|
|
}
|
|
}
|
|
#elif defined(__MINGW32__)
|
|
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
|
|
namespace Catch {
|
|
bool isDebuggerActive() {
|
|
return IsDebuggerPresent() != 0;
|
|
}
|
|
}
|
|
#else
|
|
namespace Catch {
|
|
bool isDebuggerActive() { return false; }
|
|
}
|
|
#endif // Platform
|