mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-31 00:00:33 +05:00
253 lines
7.1 KiB
C++
253 lines
7.1 KiB
C++
#include "exception.hpp"
|
|
#include "utils.hpp"
|
|
|
|
#ifdef EMSCRIPTEN
|
|
#include <iostream>
|
|
#endif // EMSCRIPTEN
|
|
|
|
namespace ngcore
|
|
{
|
|
Exception :: Exception(const std::string& s)
|
|
: m_what(s) {
|
|
#ifdef EMSCRIPTEN
|
|
std::cout << "THROW Exception " << s << std::endl;
|
|
#endif
|
|
}
|
|
|
|
Exception :: Exception(const char* s)
|
|
: m_what(s) {
|
|
#ifdef EMSCRIPTEN
|
|
std::cout << "THROW Exception " << s << std::endl;
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
void ThrowException(const std::string & s)
|
|
{
|
|
throw Exception (s);
|
|
}
|
|
|
|
void ThrowException(const char * s)
|
|
{
|
|
throw Exception (s);
|
|
}
|
|
} // namespace ngcore
|
|
|
|
|
|
// ********* STUFF FOR GETBACKTRACE ***************************
|
|
#if defined __GNUC__ && !defined __EMSCRIPTEN__
|
|
|
|
#include <execinfo.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <iostream>
|
|
#include <dlfcn.h>
|
|
#include <array>
|
|
#include <memory>
|
|
#include <cxxabi.h>
|
|
#include <signal.h>
|
|
#include <vector>
|
|
|
|
namespace ngcore
|
|
{
|
|
namespace detail
|
|
{
|
|
static int exec(std::string cmd, std::string & out) {
|
|
std::array<char, 128> buffer;
|
|
FILE *pipe = popen(cmd.c_str(), "r");
|
|
|
|
if (!pipe)
|
|
throw std::runtime_error("popen() failed!");
|
|
|
|
out = "";
|
|
while (fgets(buffer.data(), buffer.size(), pipe) != nullptr)
|
|
out += buffer.data();
|
|
|
|
int error_code = pclose(pipe);
|
|
return error_code;
|
|
}
|
|
|
|
#ifdef __APPLE__
|
|
// Split output line from backtrace_symbols to recover function name and offset
|
|
// then use `nm` command line tool to get the address of the function
|
|
// then use `add42line` command line tool to map function address + offset to line in source code
|
|
static std::string TranslateBacktrace( std::string s, std::string libname )
|
|
{
|
|
// example line
|
|
// 1 libngcore.dylib 0x000000010ddb298c _ZL21ngcore_signal_handleri + 316
|
|
constexpr char reset_shell[] = "\033[0m";
|
|
constexpr char green[] = "\033[32m";
|
|
[[maybe_unused]] constexpr char yellow[] = "\033[33m";
|
|
|
|
std::istringstream in(s);
|
|
|
|
std::string libname1, funcname, addr, plus_sign;
|
|
size_t i,offset;
|
|
|
|
in >> i >> libname1 >> addr >> funcname >> plus_sign >> std::hex >> offset;
|
|
|
|
std::stringstream out;
|
|
|
|
if(!funcname.empty() && !libname.empty())
|
|
{
|
|
std::string nm_command = "nm " + libname + " | grep \"" + funcname + "$\" | cut -f 1 -d ' '";
|
|
std::string output;
|
|
auto exit_code = exec(nm_command, output);
|
|
auto fptr = std::strtoul(output.c_str(), 0, 16);
|
|
if(fptr == 0)
|
|
return out.str()+'\n';
|
|
std::stringstream offset_s;
|
|
offset_s << "0x" << std::hex << fptr+offset - 5;
|
|
std::string addr2line_command = std::string("atos -o ") + libname + " --fullPath " + offset_s.str();
|
|
exit_code = exec(addr2line_command, output);
|
|
if(exit_code==0)
|
|
out << " at " << green << output << reset_shell;
|
|
else
|
|
out << '\n';
|
|
}
|
|
else
|
|
out << s << '\n';
|
|
|
|
return out.str();
|
|
}
|
|
#else // __APPLE__
|
|
|
|
// Split output line from backtrace_symbols to recover function name and offset
|
|
// then use `nm` command line tool to get the address of the function
|
|
// then use `addr2line` command line tool to map function address + offset to line in source code
|
|
static std::string TranslateBacktrace( std::string s, std::string /*dummy*/ )
|
|
{
|
|
// example line:
|
|
// /home/mhochsteger/install/ngs_clang/bin/../lib/libngcore.so(_ZN6ngcore11TaskManager4LoopEi+0x1e0) [0x7f2991fe1030]
|
|
constexpr char reset_shell[] = "\033[0m";
|
|
constexpr char green[] = "\033[32m";
|
|
constexpr char yellow[] = "\033[33m";
|
|
|
|
auto brace_open_pos = s.find('(');
|
|
auto brace_close_pos = s.find(')', brace_open_pos);
|
|
auto plus_pos = s.find('+', brace_open_pos);
|
|
auto bracket_open_pos = s.find('[');
|
|
auto bracket_close_pos = s.find(']');
|
|
|
|
auto libname = s.substr(0, brace_open_pos);
|
|
auto funcname = s.substr(brace_open_pos+1, plus_pos - brace_open_pos - 1);
|
|
auto offset = std::strtoul(s.substr(plus_pos+1, brace_close_pos - plus_pos - 1).c_str(), 0, 16);
|
|
// auto position = std::strtoul(s.substr(bracket_open_pos+1, bracket_close_pos - bracket_open_pos - 1).c_str(), 0, 16);
|
|
std::stringstream out;
|
|
|
|
if(!funcname.empty())
|
|
{
|
|
std::vector<char> buffer(10240);
|
|
int status;
|
|
size_t size = buffer.size();
|
|
abi::__cxa_demangle(funcname.c_str(), &buffer[0], &size, &status);
|
|
out << "in " << yellow << &buffer[0] << reset_shell << '\n';
|
|
|
|
std::string nm_command = "nm " + libname + " | grep " + funcname + " | cut -f 1 -d ' '";
|
|
std::string output;
|
|
auto exit_code = exec(nm_command, output);
|
|
auto fptr = std::strtoul(output.c_str(), 0, 16);
|
|
|
|
std::stringstream offset_s;
|
|
offset_s << "0x" << std::hex << fptr+offset - 5;
|
|
std::string addr2line_command = std::string("addr2line -i -p -e ") + libname + " " + offset_s.str();
|
|
exit_code = exec(addr2line_command, output);
|
|
if(exit_code==0)
|
|
{
|
|
std::stringstream soutput(output);
|
|
std::string s;
|
|
while(soutput)
|
|
{
|
|
if(getline(soutput, s))
|
|
out << "\t at " << green << s << reset_shell << '\n';
|
|
}
|
|
}
|
|
else
|
|
out << '\n';
|
|
}
|
|
else
|
|
out << s << '\n';
|
|
|
|
return out.str();
|
|
}
|
|
#endif // __APPLE__
|
|
|
|
} // namespace detail
|
|
|
|
std::string GetBackTrace()
|
|
{
|
|
if(!getenv("NG_BACKTRACE"))
|
|
return "";
|
|
std::cerr << "Collecting backtrace..." << std::endl;
|
|
std::stringstream result;
|
|
void *bt[100];
|
|
int bt_size;
|
|
char **bt_syms;
|
|
int i;
|
|
|
|
bt_size = backtrace(bt, 100);
|
|
bt_syms = backtrace_symbols(bt, bt_size);
|
|
Dl_info info;
|
|
for (i = 1; i < bt_size-1; i++)
|
|
{
|
|
dladdr(bt[i], &info);
|
|
// size_t len = strlen(bt_syms[i]);
|
|
result << '#'<< i << '\t' << detail::TranslateBacktrace( bt_syms[i], info.dli_fname );
|
|
}
|
|
free(bt_syms);
|
|
return result.str();
|
|
}
|
|
|
|
} // namespace ngcore
|
|
|
|
static void ngcore_signal_handler(int sig)
|
|
{
|
|
static bool first_call = true;
|
|
if(!first_call)
|
|
exit(1); // avoid endless recursions if signals are caused by this handler
|
|
first_call = false;
|
|
|
|
switch(sig)
|
|
{
|
|
case SIGABRT:
|
|
std::cerr << "Caught SIGABRT: usually caused by abort() or assert()" << std::endl;
|
|
break;
|
|
case SIGILL:
|
|
std::cerr << "Caught SIGILL: illegal instruction" << std::endl;
|
|
break;
|
|
case SIGSEGV:
|
|
std::cerr << "Caught SIGSEGV: segmentation fault" << std::endl;
|
|
break;
|
|
}
|
|
|
|
std::cerr << ngcore::GetBackTrace() << std::endl;
|
|
exit(1);
|
|
}
|
|
|
|
// register signal handler when library is loaded
|
|
static bool dummy = []()
|
|
{
|
|
if(getenv("NG_BACKTRACE"))
|
|
{
|
|
signal(SIGABRT, ngcore_signal_handler);
|
|
signal(SIGILL, ngcore_signal_handler);
|
|
signal(SIGSEGV, ngcore_signal_handler);
|
|
}
|
|
return true;
|
|
}();
|
|
|
|
#else // __GNUC__ and not __EMSCRIPTEN__
|
|
|
|
namespace ngcore
|
|
{
|
|
std::string GetBackTrace()
|
|
{
|
|
return std::string();
|
|
}
|
|
} // namespace ngcore
|
|
|
|
#endif // __GNUC__
|