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Replace PrintStackTrace(FILE*) with PrintStackTrace(raw_ostream&)

Browse Source 
This will be followed by a change on the clang side to update
the only user of this function with the new version.

Differential Revision: http://reviews.llvm.org/D8074
Reviewed By: Reid Kleckner

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zachary Turner 2015-03-05 19:10:52 +00:00
parent 7d02b353ab
commit 387cf215c0
3 changed files with 47 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/llvm/Support/Signals.h
View File

@ -19,6 +19,8 @@
#include <cstdio>
namespace llvm {
class raw_ostream;
namespace sys {
/// This function runs all the registered interrupt handlers, including the
@ -42,8 +44,8 @@ namespace sys {
/// Disable all system dialog boxes that appear when the process crashes.
void DisableSystemDialogsOnCrash();
/// \brief Print the stack trace using the given \c FILE object.
void PrintStackTrace(FILE *);
/// \brief Print the stack trace using the given \c raw_ostream object.
void PrintStackTrace(raw_ostream &OS);
/// AddSignalHandler - Add a function to be called when an abort/kill signal
/// is delivered to the process. The handler can have a cookie passed to it

42
lib/Support/Unix/Signals.inc
View File

@ -14,6 +14,7 @@
#include "Unix.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/ManagedStatic.h"
@ -324,7 +325,8 @@ static bool findModulesAndOffsets(void **StackTrace, int Depth,
}
#endif
static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
static bool printSymbolizedStackTrace(void **StackTrace, int Depth,
llvm::raw_ostream &OS) {
// FIXME: Subtract necessary number from StackTrace entries to turn return addresses
// into actual instruction addresses.
// Use llvm-symbolizer tool to symbolize the stack traces.
@ -382,7 +384,7 @@ static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
int frame_no = 0;
for (int i = 0; i < Depth; i++) {
if (!Modules[i]) {
fprintf(FD, "#%d %p\n", frame_no++, StackTrace[i]);
OS << format("#%d %p\n", frame_no++, StackTrace[i]);
continue;
}
// Read pairs of lines (function name and file/line info) until we
@ -393,17 +395,17 @@ static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
StringRef FunctionName = *CurLine++;
if (FunctionName.empty())
break;
fprintf(FD, "#%d %p ", frame_no++, StackTrace[i]);
OS << format("#%d %p ", frame_no++, StackTrace[i]);
if (!FunctionName.startswith("??"))
fprintf(FD, "%s ", FunctionName.str().c_str());
OS << format("%s ", FunctionName.str().c_str());
if (CurLine == Lines.end())
return false;
StringRef FileLineInfo = *CurLine++;
if (!FileLineInfo.startswith("??"))
fprintf(FD, "%s", FileLineInfo.str().c_str());
OS << format("%s", FileLineInfo.str().c_str());
else
fprintf(FD, "(%s+%p)", Modules[i], (void *)Offsets[i]);
fprintf(FD, "\n");
OS << format("(%s+%p)", Modules[i], (void *)Offsets[i]);
OS << "\n";
}
}
return true;
@ -415,13 +417,13 @@ static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
//
// On glibc systems we have the 'backtrace' function, which works nicely, but
// doesn't demangle symbols.
void llvm::sys::PrintStackTrace(FILE *FD) {
void llvm::sys::PrintStackTrace(raw_ostream &OS) {
#if defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)
static void* StackTrace[256];
// Use backtrace() to output a backtrace on Linux systems with glibc.
int depth = backtrace(StackTrace,
static_cast<int>(array_lengthof(StackTrace)));
if (printSymbolizedStackTrace(StackTrace, depth, FD))
if (printSymbolizedStackTrace(StackTrace, depth, OS))
return;
#if HAVE_DLFCN_H && __GNUG__
int width = 0;
@ -441,34 +443,34 @@ void llvm::sys::PrintStackTrace(FILE *FD) {
Dl_info dlinfo;
dladdr(StackTrace[i], &dlinfo);
fprintf(FD, "%-2d", i);
OS << format("%-2d", i);
const char* name = strrchr(dlinfo.dli_fname, '/');
if (!name) fprintf(FD, " %-*s", width, dlinfo.dli_fname);
else fprintf(FD, " %-*s", width, name+1);
if (!name) OS << format(" %-*s", width, dlinfo.dli_fname);
else OS << format(" %-*s", width, name+1);
fprintf(FD, " %#0*lx",
(int)(sizeof(void*) * 2) + 2, (unsigned long)StackTrace[i]);
OS << format(" %#0*lx", (int)(sizeof(void*) * 2) + 2,
(unsigned long)StackTrace[i]);
if (dlinfo.dli_sname != nullptr) {
fputc(' ', FD);
OS << ' ';
# if HAVE_CXXABI_H
int res;
char* d = abi::__cxa_demangle(dlinfo.dli_sname, nullptr, nullptr, &res);
# else
char* d = NULL;
# endif
if (!d) fputs(dlinfo.dli_sname, FD);
else fputs(d, FD);
if (!d) OS << dlinfo.dli_sname;
else OS << d;
free(d);
// FIXME: When we move to C++11, use %t length modifier. It's not in
// C++03 and causes gcc to issue warnings. Losing the upper 32 bits of
// the stack offset for a stack dump isn't likely to cause any problems.
fprintf(FD, " + %u",(unsigned)((char*)StackTrace[i]-
OS << format(" + %u",(unsigned)((char*)StackTrace[i]-
(char*)dlinfo.dli_saddr));
}
fputc('\n', FD);
OS << '\n';
}
#else
backtrace_symbols_fd(StackTrace, depth, STDERR_FILENO);
@ -477,7 +479,7 @@ void llvm::sys::PrintStackTrace(FILE *FD) {
}
static void PrintStackTraceSignalHandler(void *) {
PrintStackTrace(stderr);
PrintStackTrace(llvm::errs());
}
void llvm::sys::DisableSystemDialogsOnCrash() {}

35
lib/Support/Windows/Signals.inc
View File

@ -16,6 +16,9 @@
#include <stdio.h>
#include <vector>
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
// The Windows.h header must be after LLVM and standard headers.
#include "WindowsSupport.h"
@ -172,7 +175,7 @@ static PTOP_LEVEL_EXCEPTION_FILTER OldFilter = NULL;
// globals which this critical section addresses.
static CRITICAL_SECTION CriticalSection;
static void PrintStackTraceForThread(FILE *File, HANDLE hProcess,
static void PrintStackTraceForThread(llvm::raw_ostream &OS, HANDLE hProcess,
HANDLE hThread, STACKFRAME64 &StackFrame,
CONTEXT *Context) {
DWORD machineType;
@ -195,21 +198,22 @@ static void PrintStackTraceForThread(FILE *File, HANDLE hProcess,
if (StackFrame.AddrFrame.Offset == 0)
break;
using namespace llvm;
// Print the PC in hexadecimal.
DWORD64 PC = StackFrame.AddrPC.Offset;
#if defined(_M_X64)
fprintf(File, "0x%016llX", PC);
OS << format("0x%016llX", PC);
#elif defined(_M_IX86)
fprintf(File, "0x%08lX", static_cast<DWORD>(PC));
OS << format("0x%08lX", static_cast<DWORD>(PC));
#endif
// Print the parameters. Assume there are four.
#if defined(_M_X64)
fprintf(File, " (0x%016llX 0x%016llX 0x%016llX 0x%016llX)",
OS << format(" (0x%016llX 0x%016llX 0x%016llX 0x%016llX)",
StackFrame.Params[0], StackFrame.Params[1], StackFrame.Params[2],
StackFrame.Params[3]);
#elif defined(_M_IX86)
fprintf(File, " (0x%08lX 0x%08lX 0x%08lX 0x%08lX)",
OS << format(" (0x%08lX 0x%08lX 0x%08lX 0x%08lX)",
static_cast<DWORD>(StackFrame.Params[0]),
static_cast<DWORD>(StackFrame.Params[1]),
static_cast<DWORD>(StackFrame.Params[2]),
@ -217,7 +221,7 @@ static void PrintStackTraceForThread(FILE *File, HANDLE hProcess,
#endif
// Verify the PC belongs to a module in this process.
if (!SymGetModuleBase64(hProcess, PC)) {
fputs(" <unknown module>\n", File);
OS << " <unknown module>\n";
continue;
}
@ -230,15 +234,16 @@ static void PrintStackTraceForThread(FILE *File, HANDLE hProcess,
DWORD64 dwDisp;
if (!SymGetSymFromAddr64(hProcess, PC, &dwDisp, symbol)) {
fputc('\n', File);
OS << '\n';
continue;
}
buffer[511] = 0;
if (dwDisp > 0)
fprintf(File, ", %s() + 0x%llX bytes(s)", symbol->Name, dwDisp);
OS << format(", %s() + 0x%llX bytes(s)", (const char*)symbol->Name,
dwDisp);
else
fprintf(File, ", %s", symbol->Name);
OS << format(", %s", (const char*)symbol->Name);
// Print the source file and line number information.
IMAGEHLP_LINE64 line;
@ -246,12 +251,12 @@ static void PrintStackTraceForThread(FILE *File, HANDLE hProcess,
memset(&line, 0, sizeof(line));
line.SizeOfStruct = sizeof(line);
if (SymGetLineFromAddr64(hProcess, PC, &dwLineDisp, &line)) {
fprintf(File, ", %s, line %lu", line.FileName, line.LineNumber);
OS << format(", %s, line %lu", line.FileName, line.LineNumber);
if (dwLineDisp > 0)
fprintf(File, " + 0x%lX byte(s)", dwLineDisp);
OS << format(" + 0x%lX byte(s)", dwLineDisp);
}
fputc('\n', File);
OS << '\n';
}
}
@ -381,7 +386,7 @@ void sys::PrintStackTraceOnErrorSignal() {
LeaveCriticalSection(&CriticalSection);
}
void llvm::sys::PrintStackTrace(FILE *File) {
void llvm::sys::PrintStackTrace(raw_ostream &OS) {
STACKFRAME64 StackFrame = {};
CONTEXT Context = {0};
@ -398,7 +403,7 @@ void llvm::sys::PrintStackTrace(FILE *File) {
StackFrame.AddrPC.Mode = AddrModeFlat;
StackFrame.AddrStack.Mode = AddrModeFlat;
StackFrame.AddrFrame.Mode = AddrModeFlat;
PrintStackTraceForThread(File, GetCurrentProcess(), GetCurrentThread(),
PrintStackTraceForThread(OS, GetCurrentProcess(), GetCurrentThread(),
StackFrame, &Context);
}
@ -473,7 +478,7 @@ static LONG WINAPI LLVMUnhandledExceptionFilter(LPEXCEPTION_POINTERS ep) {
HANDLE hProcess = GetCurrentProcess();
HANDLE hThread = GetCurrentThread();
PrintStackTraceForThread(stderr, hProcess, hThread, StackFrame,
PrintStackTraceForThread(llvm::errs(), hProcess, hThread, StackFrame,
ep->ContextRecord);
_exit(ep->ExceptionRecord->ExceptionCode);