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authorpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
commitb64793999546ed8adebaeebd9d8345d18db8927d (patch)
tree4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
parentAdd support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff)
downloadwireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz
wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp')
-rw-r--r--gnu/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp234
1 files changed, 0 insertions, 234 deletions
diff --git a/gnu/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp b/gnu/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
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--- a/gnu/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
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-//===-- llvm-symbolizer.cpp - Simple addr2line-like symbolizer ------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This utility works much like "addr2line". It is able of transforming
-// tuples (module name, module offset) to code locations (function name,
-// file, line number, column number). It is targeted for compiler-rt tools
-// (especially AddressSanitizer and ThreadSanitizer) that can use it
-// to symbolize stack traces in their error reports.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/StringRef.h"
-#include "llvm/DebugInfo/Symbolize/DIPrinter.h"
-#include "llvm/DebugInfo/Symbolize/Symbolize.h"
-#include "llvm/Support/COM.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/InitLLVM.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/raw_ostream.h"
-#include <cstdio>
-#include <cstring>
-#include <string>
-
-using namespace llvm;
-using namespace symbolize;
-
-static cl::opt<bool>
-ClUseSymbolTable("use-symbol-table", cl::init(true),
- cl::desc("Prefer names in symbol table to names "
- "in debug info"));
-
-static cl::opt<FunctionNameKind> ClPrintFunctions(
- "functions", cl::init(FunctionNameKind::LinkageName),
- cl::desc("Print function name for a given address:"),
- cl::values(clEnumValN(FunctionNameKind::None, "none", "omit function name"),
- clEnumValN(FunctionNameKind::ShortName, "short",
- "print short function name"),
- clEnumValN(FunctionNameKind::LinkageName, "linkage",
- "print function linkage name")));
-
-static cl::opt<bool>
- ClUseRelativeAddress("relative-address", cl::init(false),
- cl::desc("Interpret addresses as relative addresses"),
- cl::ReallyHidden);
-
-static cl::opt<bool>
- ClPrintInlining("inlining", cl::init(true),
- cl::desc("Print all inlined frames for a given address"));
-
-// -demangle, -C
-static cl::opt<bool>
-ClDemangle("demangle", cl::init(true), cl::desc("Demangle function names"));
-static cl::alias
-ClDemangleShort("C", cl::desc("Alias for -demangle"),
- cl::NotHidden, cl::aliasopt(ClDemangle));
-
-static cl::opt<std::string> ClDefaultArch("default-arch", cl::init(""),
- cl::desc("Default architecture "
- "(for multi-arch objects)"));
-
-// -obj, -exe, -e
-static cl::opt<std::string>
-ClBinaryName("obj", cl::init(""),
- cl::desc("Path to object file to be symbolized (if not provided, "
- "object file should be specified for each input line)"));
-static cl::alias
-ClBinaryNameAliasExe("exe", cl::desc("Alias for -obj"),
- cl::NotHidden, cl::aliasopt(ClBinaryName));
-static cl::alias
-ClBinaryNameAliasE("e", cl::desc("Alias for -obj"),
- cl::NotHidden, cl::aliasopt(ClBinaryName));
-
-
-static cl::opt<std::string>
- ClDwpName("dwp", cl::init(""),
- cl::desc("Path to DWP file to be use for any split CUs"));
-
-static cl::list<std::string>
-ClDsymHint("dsym-hint", cl::ZeroOrMore,
- cl::desc("Path to .dSYM bundles to search for debug info for the "
- "object files"));
-
-// -print-address, -addresses, -a
-static cl::opt<bool>
-ClPrintAddress("print-address", cl::init(false),
- cl::desc("Show address before line information"));
-static cl::alias
-ClPrintAddressAliasAddresses("addresses", cl::desc("Alias for -print-address"),
- cl::NotHidden, cl::aliasopt(ClPrintAddress));
-static cl::alias
-ClPrintAddressAliasA("a", cl::desc("Alias for -print-address"),
- cl::NotHidden, cl::aliasopt(ClPrintAddress));
-
-// -pretty-print, -p
-static cl::opt<bool>
- ClPrettyPrint("pretty-print", cl::init(false),
- cl::desc("Make the output more human friendly"));
-static cl::alias ClPrettyPrintShort("p", cl::desc("Alias for -pretty-print"),
- cl::NotHidden,
- cl::aliasopt(ClPrettyPrint));
-
-static cl::opt<int> ClPrintSourceContextLines(
- "print-source-context-lines", cl::init(0),
- cl::desc("Print N number of source file context"));
-
-static cl::opt<bool> ClVerbose("verbose", cl::init(false),
- cl::desc("Print verbose line info"));
-
-static cl::list<std::string> ClInputAddresses(cl::Positional,
- cl::desc("<input addresses>..."),
- cl::ZeroOrMore);
-
-template<typename T>
-static bool error(Expected<T> &ResOrErr) {
- if (ResOrErr)
- return false;
- logAllUnhandledErrors(ResOrErr.takeError(), errs(),
- "LLVMSymbolizer: error reading file: ");
- return true;
-}
-
-static bool parseCommand(StringRef InputString, bool &IsData,
- std::string &ModuleName, uint64_t &ModuleOffset) {
- const char kDelimiters[] = " \n\r";
- ModuleName = "";
- if (InputString.consume_front("CODE ")) {
- IsData = false;
- } else if (InputString.consume_front("DATA ")) {
- IsData = true;
- } else {
- // If no cmd, assume it's CODE.
- IsData = false;
- }
- const char *pos = InputString.data();
- // Skip delimiters and parse input filename (if needed).
- if (ClBinaryName.empty()) {
- pos += strspn(pos, kDelimiters);
- if (*pos == '"' || *pos == '\'') {
- char quote = *pos;
- pos++;
- const char *end = strchr(pos, quote);
- if (!end)
- return false;
- ModuleName = std::string(pos, end - pos);
- pos = end + 1;
- } else {
- int name_length = strcspn(pos, kDelimiters);
- ModuleName = std::string(pos, name_length);
- pos += name_length;
- }
- } else {
- ModuleName = ClBinaryName;
- }
- // Skip delimiters and parse module offset.
- pos += strspn(pos, kDelimiters);
- int offset_length = strcspn(pos, kDelimiters);
- return !StringRef(pos, offset_length).getAsInteger(0, ModuleOffset);
-}
-
-static void symbolizeInput(StringRef InputString, LLVMSymbolizer &Symbolizer,
- DIPrinter &Printer) {
- bool IsData = false;
- std::string ModuleName;
- uint64_t ModuleOffset = 0;
- if (!parseCommand(StringRef(InputString), IsData, ModuleName, ModuleOffset)) {
- outs() << InputString;
- return;
- }
-
- if (ClPrintAddress) {
- outs() << "0x";
- outs().write_hex(ModuleOffset);
- StringRef Delimiter = ClPrettyPrint ? ": " : "\n";
- outs() << Delimiter;
- }
- if (IsData) {
- auto ResOrErr = Symbolizer.symbolizeData(ModuleName, ModuleOffset);
- Printer << (error(ResOrErr) ? DIGlobal() : ResOrErr.get());
- } else if (ClPrintInlining) {
- auto ResOrErr =
- Symbolizer.symbolizeInlinedCode(ModuleName, ModuleOffset, ClDwpName);
- Printer << (error(ResOrErr) ? DIInliningInfo() : ResOrErr.get());
- } else {
- auto ResOrErr =
- Symbolizer.symbolizeCode(ModuleName, ModuleOffset, ClDwpName);
- Printer << (error(ResOrErr) ? DILineInfo() : ResOrErr.get());
- }
- outs() << "\n";
- outs().flush();
-}
-
-int main(int argc, char **argv) {
- InitLLVM X(argc, argv);
-
- llvm::sys::InitializeCOMRAII COM(llvm::sys::COMThreadingMode::MultiThreaded);
-
- cl::ParseCommandLineOptions(argc, argv, "llvm-symbolizer\n");
- LLVMSymbolizer::Options Opts(ClPrintFunctions, ClUseSymbolTable, ClDemangle,
- ClUseRelativeAddress, ClDefaultArch);
-
- for (const auto &hint : ClDsymHint) {
- if (sys::path::extension(hint) == ".dSYM") {
- Opts.DsymHints.push_back(hint);
- } else {
- errs() << "Warning: invalid dSYM hint: \"" << hint <<
- "\" (must have the '.dSYM' extension).\n";
- }
- }
- LLVMSymbolizer Symbolizer(Opts);
-
- DIPrinter Printer(outs(), ClPrintFunctions != FunctionNameKind::None,
- ClPrettyPrint, ClPrintSourceContextLines, ClVerbose);
-
- if (ClInputAddresses.empty()) {
- const int kMaxInputStringLength = 1024;
- char InputString[kMaxInputStringLength];
-
- while (fgets(InputString, sizeof(InputString), stdin))
- symbolizeInput(InputString, Symbolizer, Printer);
- } else {
- for (StringRef Address : ClInputAddresses)
- symbolizeInput(Address, Symbolizer, Printer);
- }
-
- return 0;
-}