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#include "Unix.h"
#include <cstring>
#include <signal.h>
namespace DebuggerCorePlugin {
namespace {
struct Exception {
qlonglong value;
const char *const name;
};
constexpr Exception Exceptions[] = {
#ifdef SIGABRT
{SIGABRT, "SIGABRT"},
#endif
#ifdef SIGALRM
{SIGALRM, "SIGALRM"},
#endif
#ifdef SIGVTALRM
{SIGVTALRM, "SIGVTALRM"},
#endif
#ifdef SIGPROF
{SIGPROF, "SIGPROF"},
#endif
#ifdef SIGBUS
{SIGBUS, "SIGBUS"},
#endif
#ifdef SIGCHLD
{SIGCHLD, "SIGCHLD"},
#endif
#ifdef SIGCONT
{SIGCONT, "SIGCONT"},
#endif
#ifdef SIGFPE
{SIGFPE, "SIGFPE"},
#endif
#ifdef SIGHUP
{SIGHUP, "SIGHUP"},
#endif
#ifdef SIGILL
{SIGILL, "SIGILL"},
#endif
#ifdef SIGINT
{SIGINT, "SIGINT"},
#endif
#ifdef SIGKILL
{SIGKILL, "SIGKILL"},
#endif
#ifdef SIGPIPE
{SIGPIPE, "SIGPIPE"},
#endif
#ifdef SIGQUIT
{SIGQUIT, "SIGQUIT"},
#endif
#ifdef SIGSEGV
{SIGSEGV, "SIGSEGV"},
#endif
#ifdef SIGSTOP
{SIGSTOP, "SIGSTOP"},
#endif
#ifdef SIGTERM
{SIGTERM, "SIGTERM"},
#endif
#ifdef SIGTSTP
{SIGTSTP, "SIGTSTP"},
#endif
#ifdef SIGTTIN
{SIGTTIN, "SIGTTIN"},
#endif
#ifdef SIGTTOU
{SIGTTOU, "SIGTTOU"},
#endif
#ifdef SIGUSR1
{SIGUSR1, "SIGUSR1"},
#endif
#ifdef SIGUSR2
{SIGUSR2, "SIGUSR2"},
#endif
#ifdef SIGPOLL
{SIGPOLL, "SIGPOLL"},
#endif
#ifdef SIGSYS
{SIGSYS, "SIGSYS"},
#endif
#ifdef SIGTRAP
{SIGTRAP, "SIGTRAP"},
#endif
#ifdef SIGURG
{SIGURG, "SIGURG"},
#endif
#ifdef SIGXCPU
{SIGXCPU, "SIGXCPU"},
#endif
#ifdef SIGXFSZ
{SIGXFSZ, "SIGXFSZ"},
#endif
#ifdef SIGIO
{SIGIO, "SIGIO"},
#endif
#ifdef SIGSTKFLT
{SIGSTKFLT, "SIGSTKFLT"},
#endif
#ifdef SIGWINCH
{SIGWINCH, "SIGWINCH"},
#endif
};
/**
* @brief copyString
* @param str
* @return
*/
char *copyString(const QByteArray &str) {
char *p = new char[str.length() + 1];
std::strcpy(p, str.constData());
return p;
}
}
/**
* @brief Unix::exceptions
* @return
*/
QMap<qlonglong, QString> Unix::exceptions() {
QMap<qlonglong, QString> exceptions;
for (Exception e : Exceptions) {
exceptions.insert(e.value, e.name);
}
return exceptions;
}
/**
* @brief Unix::exception_name
* @param value
* @return
*/
QString Unix::exception_name(qlonglong value) {
auto it = std::find_if(std::begin(Exceptions), std::end(Exceptions), [value](const Exception &ex) {
return ex.value == value;
});
if (it != std::end(Exceptions)) {
return it->name;
}
return QString();
}
/**
* @brief Unix::exception_value
* @param name
* @return
*/
qlonglong Unix::exception_value(const QString &name) {
auto it = std::find_if(std::begin(Exceptions), std::end(Exceptions), [&name](const Exception &ex) {
return ex.name == name;
});
if (it != std::end(Exceptions)) {
return it->value;
}
return -1;
}
/**
* @brief Unix::execute_process
* @param path
* @param cwd
* @param args
* @return
*/
Status Unix::execute_process(const QString &path, const QString &cwd, const QList<QByteArray> &args) {
QString errorString = "internal error";
// change to the desired working directory
if (::chdir(qPrintable(cwd)) == 0) {
// allocate space for all the arguments
auto argv_pointers = new char *[args.count() + 2];
char **p = argv_pointers;
*p++ = copyString(path.toLocal8Bit());
for (int i = 0; i < args.count(); ++i) {
*p++ = copyString(args[i]);
}
*p = nullptr;
// NOTE: it's a bad idea to use execvp and similar functions searching in
// $PATH. At least on Linux, if the file is corrupted/unsupported, they
// instead appear to launch shell
const int ret = execv(argv_pointers[0], argv_pointers);
// should be no need to cleanup, the process which allocated all that
// space no longer exists!
// if we get here...execv failed!
if (ret == -1) {
errorString = QString("execv() failed: %1").arg(strerror(errno));
p = argv_pointers;
while (*p) {
delete[] * p++;
}
delete[] argv_pointers;
}
}
// frankly, any return is technically an error I think
// this is only executed from a fork
return Status(errorString);
}
}
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