107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* Minimal addr2line using folly::symbolizer. Used for tests.
|
|
*
|
|
* folly-addr2line -e objectfile --demangle <addr1> [<addr2> ...]
|
|
*/
|
|
|
|
#include <algorithm>
|
|
#include <array>
|
|
#include <iostream>
|
|
|
|
#include <folly/Range.h>
|
|
#include <folly/experimental/symbolizer/Dwarf.h>
|
|
#include <folly/experimental/symbolizer/Elf.h>
|
|
#include <folly/experimental/symbolizer/SymbolizedFrame.h>
|
|
#include <folly/experimental/symbolizer/Symbolizer.h>
|
|
#include <folly/init/Init.h>
|
|
#include <folly/portability/GFlags.h>
|
|
|
|
#if FOLLY_HAVE_DWARF && FOLLY_HAVE_ELF
|
|
|
|
DEFINE_string(e, "", "Path to ELF object file (.so, binary)");
|
|
DEFINE_bool(demangle, false, "Degmangle symbols");
|
|
|
|
using namespace folly::symbolizer;
|
|
|
|
void addr2line(std::shared_ptr<ElfFile> elfFile, uintptr_t address) {
|
|
if (elfFile->getSectionContainingAddress(address) == nullptr) {
|
|
std::cout << "0x" << std::hex << address << std::dec << "\n??\n??:0\n";
|
|
return;
|
|
}
|
|
|
|
auto sym = elfFile->getDefinitionByAddress(address);
|
|
if (sym.first == nullptr) {
|
|
std::cout << "0x" << std::hex << address << std::dec << "\n??\n??:0\n";
|
|
return;
|
|
}
|
|
|
|
std::array<SymbolizedFrame, 100> frames;
|
|
frames[0].found = true;
|
|
frames[0].addr = address;
|
|
frames[0].file = elfFile;
|
|
frames[0].name = elfFile->getSymbolName(sym);
|
|
|
|
Dwarf(elfFile.get())
|
|
.findAddress(
|
|
address,
|
|
LocationInfoMode::FULL_WITH_INLINE,
|
|
frames[0].location,
|
|
/* extraInlineFrames */ folly::range(frames).subpiece(1));
|
|
|
|
size_t n = 0;
|
|
while (frames[n].found) {
|
|
n++;
|
|
}
|
|
|
|
// Inlined frames [1,n) are filled in deepest call first order,
|
|
// but frames[0] is used for the non-inlined caller.
|
|
// Move frames[0] to the end so the entire array is ordered.
|
|
std::rotate(&frames[0], &frames[1], &frames[0] + n);
|
|
|
|
CHECK_NE(n, 0);
|
|
std::cout << "0x" << std::hex << address << std::dec << '\n';
|
|
for (size_t i = 0; i < n; i++) {
|
|
const auto& f = frames[i];
|
|
std::cout << (f.name ? (FLAGS_demangle ? folly::demangle(f.name) : f.name)
|
|
: "??")
|
|
<< '\n';
|
|
auto path = f.location.file.toString();
|
|
path = path.empty() ? "??" : path;
|
|
std::cout << path << ":" << f.location.line << '\n';
|
|
}
|
|
}
|
|
|
|
int main(int argc, char* argv[]) {
|
|
folly::Init init(&argc, &argv);
|
|
auto elfFile = std::make_shared<ElfFile>(FLAGS_e.c_str());
|
|
|
|
for (int i = 1; i < argc; i++) {
|
|
addr2line(elfFile, folly::to<uintptr_t>(argv[i]));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#else // FOLLY_HAVE_DWARF && FOLLY_HAVE_ELF
|
|
|
|
int main(int, char*[]) {
|
|
return 1;
|
|
}
|
|
|
|
#endif // FOLLY_HAVE_DWARF && FOLLY_HAVE_ELF
|