91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
/*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* Copyright:
|
|
* 2012-2019, Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#include "backtrace.hpp"
|
|
|
|
#include "win32/error.hpp"
|
|
#include "win32/handle.hpp"
|
|
#include "win32/windows.hpp"
|
|
#include "debug.hpp"
|
|
#include "except.hpp"
|
|
|
|
#include <cstdlib>
|
|
#include <dbghelp.h>
|
|
|
|
using cruft::backtrace;
|
|
|
|
static constexpr std::size_t DEFAULT_DEPTH = 16;
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
backtrace::backtrace (void)
|
|
{
|
|
m_frames.resize (DEFAULT_DEPTH);
|
|
|
|
auto process = GetCurrentProcess();
|
|
if (!SymInitialize (process, NULL, TRUE))
|
|
cruft::win32::error::throw_code ();
|
|
|
|
while (true) {
|
|
auto const res = CaptureStackBackTrace (1, m_frames.size (), m_frames.data (), NULL);
|
|
if (res < m_frames.size ()) {
|
|
m_frames.resize (res);
|
|
break;
|
|
}
|
|
|
|
m_frames.resize (m_frames.size () * 2);
|
|
}
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
fmt::format_context::iterator
|
|
fmt::formatter<cruft::backtrace>::format (
|
|
cruft::backtrace const &obj,
|
|
fmt::format_context &ctx
|
|
) {
|
|
static auto process = GetCurrentProcess ();
|
|
CHECK (ready);
|
|
|
|
static constexpr size_t MAX_LENGTH = 255;
|
|
struct {
|
|
SYMBOL_INFO info;
|
|
char name[MAX_LENGTH + 1];
|
|
} symbol;
|
|
|
|
symbol.info.MaxNameLen = MAX_LENGTH;
|
|
symbol.info.SizeOfStruct = sizeof (SYMBOL_INFO);
|
|
|
|
fmt::format_to (ctx.out (), "[ ");
|
|
for (void *frame: rhs.frames ()) {
|
|
symbol.name[0] = '\0';
|
|
SymFromAddr (process, (DWORD64)frame, 0, &symbol.info);
|
|
symbol.name[MAX_LENGTH] = '\0';
|
|
|
|
fmt::format_to (
|
|
ctx.out (),
|
|
"{{ addr: {}, name: '{}' }}, ",
|
|
frame,
|
|
symbol.name
|
|
);
|
|
}
|
|
|
|
return fmt::format_to (ctx.out (), " ]");
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
std::ostream&
|
|
debug::operator <<(std::ostream &os, ::cruft::backtrace const &rhs)
|
|
{
|
|
fmt::print (os, "{}", rhs);
|
|
return os;
|
|
}
|