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Debug.cpp
5452 lines (4894 loc) · 209 KB
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Debug.cpp
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/*******************************************************************************
* Copyright IBM Corp. and others 2000
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] https://openjdk.org/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
*******************************************************************************/
#include "ras/Debug.hpp"
#include <algorithm>
#include <ctype.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "codegen/BackingStore.hpp"
#include "codegen/CodeGenPhase.hpp"
#include "codegen/CodeGenerator.hpp"
#include "env/FrontEnd.hpp"
#include "codegen/GCStackAtlas.hpp"
#include "codegen/GCStackMap.hpp"
#include "codegen/InstOpCode.hpp"
#include "codegen/Instruction.hpp"
#include "env/KnownObjectTable.hpp"
#include "codegen/LinkageConventionsEnum.hpp"
#include "codegen/LiveRegister.hpp"
#include "codegen/Machine.hpp"
#include "codegen/RealRegister.hpp"
#include "codegen/Register.hpp"
#include "codegen/RegisterConstants.hpp"
#include "codegen/RegisterIterator.hpp"
#include "codegen/RegisterPair.hpp"
#include "codegen/RegisterRematerializationInfo.hpp"
#include "codegen/Snippet.hpp"
#include "compile/Compilation.hpp"
#include "compile/Method.hpp"
#include "compile/ResolvedMethod.hpp"
#include "compile/SymbolReferenceTable.hpp"
#include "compile/VirtualGuard.hpp"
#include "control/Options.hpp"
#include "control/Options_inlines.hpp"
#include "control/Recompilation.hpp"
#include "cs2/hashtab.h"
#include "env/CompilerEnv.hpp"
#include "env/IO.hpp"
#include "env/RawAllocator.hpp"
#include "env/StackMemoryRegion.hpp"
#include "env/TRMemory.hpp"
#include "env/jittypes.h"
#include "il/AutomaticSymbol.hpp"
#include "il/Block.hpp"
#include "il/DataTypes.hpp"
#include "il/ILOpCodes.hpp"
#include "il/ILOps.hpp"
#include "il/LabelSymbol.hpp"
#include "il/MethodSymbol.hpp"
#include "il/Node.hpp"
#include "il/Node_inlines.hpp"
#include "il/ParameterSymbol.hpp"
#include "il/RegisterMappedSymbol.hpp"
#include "il/ResolvedMethodSymbol.hpp"
#include "il/StaticSymbol.hpp"
#include "il/Symbol.hpp"
#include "il/SymbolReference.hpp"
#include "il/TreeTop.hpp"
#include "il/TreeTop_inlines.hpp"
#include "infra/Array.hpp"
#include "infra/Assert.hpp"
#include "infra/BitVector.hpp"
#include "infra/List.hpp"
#include "infra/SimpleRegex.hpp"
#include "infra/CfgNode.hpp"
#include "optimizer/Optimizations.hpp"
#include "optimizer/Optimizer.hpp"
#include "optimizer/PreExistence.hpp"
#include "optimizer/Structure.hpp"
#include "ras/CallStackIterator.hpp"
#include "ras/DebugCounter.hpp"
#include "runtime/Runtime.hpp"
#ifdef J9_PROJECT_SPECIFIC
#include "env/CHTable.hpp"
#include "env/VMAccessCriticalSection.hpp"
#include "env/VMJ9.h"
#endif
#ifdef AIXPPC
#include <sys/debug.h>
#endif
#ifdef TR_TARGET_ARM
#include "arm/codegen/ARMInstruction.hpp"
#endif
#ifdef LINUX
#include <arpa/inet.h>
#include <dlfcn.h>
#include <netdb.h>
#endif
#if defined(J9ZOS390) || defined(AIXPPC) || defined(LINUX)
#include <unistd.h>
#endif
#ifdef J9OS_I5
#include "Xj9I5OSJitDebug.H"
#endif
// -----------------------------------------------------------------------------
// TODO: the following would look much better as instance fields in TR_Debug
int32_t addressWidth = 0;
extern const char *pIlOpNames[]; // from Tree.cpp
const char * jitdCurrentMethodSignature(TR::Compilation *comp)
{
return comp->getCurrentMethod()->signature(comp->trMemory(), heapAlloc);
}
void * TR_Debug::operator new (size_t s, TR_HeapMemory m)
{
return m.allocate(s, TR_Memory::Debug);
}
void * TR_Debug::operator new(size_t s, TR::PersistentAllocator &allocator)
{
return allocator.allocate(s);
}
TR_Debug * createDebugObject(TR::Compilation * comp)
{
TR_Debug *dbg = NULL;
if (comp)
dbg = new (comp->trHeapMemory()) TR_Debug(comp);
else
dbg = new (TR::Compiler->regionAllocator) TR_Debug(comp);
return dbg;
}
#if defined(AIXPPC) || defined(LINUX) || defined(J9ZOS390) || defined(OMR_OS_WINDOWS)
static void stopOnCreate()
{
static int first = 1;
// only print the following message once
if (first)
{
printf("stopOnCreate is a dummy routine.\n");
first = 0;
}
}
#endif /* defined(AIXPPC) || defined(LINUX) || defined(J9ZOS390) || defined(OMR_OS_WINDOWS) */
void
TR_Debug::breakOn()
{
#if defined(TR_HOST_X86)
TR::Compiler->debug.breakPoint();
#else
static int first = 1;
// only print the following message once
if (first)
{
printf("\n");
printf("Break point encountered.\n");
printf("Start the program with a debuger, Or\n");
printf("use <debugOnCreate> option to auto attach the debugger.\n");
printf("\n");
first = 0;
}
TR::Compiler->debug.breakPoint();
#endif
}
void
TR_Debug::debugOnCreate()
{
#if defined(TR_HOST_X86)
TR::Compiler->debug.breakPoint();
#elif defined(AIXPPC)
setupDebugger((void *) *((long*)&(stopOnCreate)));
stopOnCreate();
#elif defined(LINUX) || defined(J9ZOS390) || (defined(OMR_OS_WINDOWS))
setupDebugger((void *) &stopOnCreate,(void *) &stopOnCreate,true);
stopOnCreate();
#endif /* defined(TR_HOST_X86) */
}
TR_Debug::TR_Debug( TR::Compilation * c)
: _comp(c),
_compilationFilters(0), _relocationFilters(0), _inlineFilters(0),
_lastFrequency(-1), _isCold(false), _currentParent(NULL),
_currentChildIndex(0),
_mainEntrySeen(false)
{
if (c)
{
_cg = c->cg();
_fe = c->fe();
_file = c->getOutFile();
resetDebugData();
_nodeChecklist.init(0, c->trMemory(), heapAlloc, growable);
_structureChecklist.init(0, c->trMemory(), heapAlloc, growable);
}
else // still need to initialize other fields that are being initialized inside resetDebugData()
{
_nextLabelNumber = 1;
_nextRegisterNumber = 1;
_nextNodeNumber = 1;
_nextSymbolNumber = 1;
_nextInstructionNumber = 1;
_nextStructureNumber = 1;
_nextVariableSizeSymbolNumber = 1;
_usesSingleAllocMetaData = 0;
}
// Figure out how many bytes are consumed by POINTER_PRINTF_FORMAT
if (1) // force block scope
{
char buffer[30];
addressWidth = sprintf(buffer, POINTER_PRINTF_FORMAT, this);
}
_registerAssignmentTraceFlags = 0;
}
void
TR_Debug::resetDebugData()
{
_nextLabelNumber = 1;
_nextRegisterNumber = 1;
_nextNodeNumber = 1;
_nextSymbolNumber = 1;
_nextInstructionNumber = 1;
_nextStructureNumber = 1;
_nextVariableSizeSymbolNumber = 1;
_usesSingleAllocMetaData = 0;
}
inline void roundToBoundary(uint32_t &value, uint32_t boundary)
{
uint32_t vplus = value + boundary - 1;
value = vplus - (vplus % boundary);
}
void
TR_Debug::roundAddressEnumerationCounters(uint32_t boundary)
{
roundToBoundary(_nextLabelNumber, boundary);
roundToBoundary(_nextRegisterNumber, boundary);
roundToBoundary(_nextSymbolNumber, boundary);
roundToBoundary(_nextInstructionNumber, boundary);
roundToBoundary(_nextStructureNumber, boundary);
// Note: this currently has no effect because we use node->getGlobalIndex()
// instead of _nextNodeNumber. We may want to reconsider using
// _nextNodeNumber to reduce spurious node name differences between runs.
//
roundToBoundary(_nextNodeNumber, boundary);
}
void
TR_Debug::breakOrDebugOnCreate(char *artifactName)
{
TR::SimpleRegex *regex = _comp->getOptions()->getBreakOnCreate();
if (regex && TR::SimpleRegex::match(regex, artifactName, false))
breakOn();
regex = _comp->getOptions()->getDebugOnCreate();
if (regex && TR::SimpleRegex::match(regex, artifactName, false))
debugOnCreate();
}
void
TR_Debug::newNode(TR::Node *node)
{
if (_comp->getOptions()->getBreakOnCreate() ||
_comp->getOptions()->getDebugOnCreate())
{
char buf[20];
sprintf(buf, "ND_%04x", node->getGlobalIndex());
breakOrDebugOnCreate(buf);
}
}
void
TR_Debug::newLabelSymbol(TR::LabelSymbol *labelSymbol)
{
_comp->getToNumberMap().Add((void *)labelSymbol, (intptr_t)_nextLabelNumber);
if (_comp->getOptions()->getBreakOnCreate() ||
_comp->getOptions()->getDebugOnCreate())
{
char buf[20];
sprintf(buf, "L%04x", _nextLabelNumber);
breakOrDebugOnCreate(buf);
}
_nextLabelNumber++;
}
void
TR_Debug::newInstruction(TR::Instruction *instr)
{
if (_comp->getAddressEnumerationOption(TR_EnumerateInstruction) ||
_comp->getOptions()->getBreakOnCreate() ||
_comp->getOptions()->getDebugOnCreate())
{
char buf[20];
_comp->getToNumberMap().Add((void *)instr, (intptr_t)_nextInstructionNumber);
sprintf(buf, "IN_%04x", _nextInstructionNumber);
breakOrDebugOnCreate(buf);
}
_nextInstructionNumber++;
}
void
TR_Debug::newRegister(TR::Register *reg)
{
if (_comp->getAddressEnumerationOption(TR_EnumerateRegister))
_comp->getToNumberMap().Add((void *)reg, (intptr_t)_nextRegisterNumber);
if (_comp->getOptions()->getBreakOnCreate() ||
_comp->getOptions()->getDebugOnCreate())
{
char buf[20];
sprintf(buf, "GPR_%04x", _nextRegisterNumber );
breakOrDebugOnCreate(buf);
}
_nextRegisterNumber++;
}
void
TR_Debug::newVariableSizeSymbol(TR::AutomaticSymbol *sym)
{
int32_t strLength = static_cast<int32_t>(strlen(TR_VSS_NAME)) + TR::getMaxSignedPrecision<TR::Int32>() + 7;
char *buf = (char *)_comp->trMemory()->allocateHeapMemory(strLength);
sprintf(buf, "%s_%d", TR_VSS_NAME, _nextVariableSizeSymbolNumber);
_comp->getToStringMap().Add((void *)sym, buf);
if (_comp->getOptions()->getBreakOnCreate() ||
_comp->getOptions()->getDebugOnCreate())
{
breakOrDebugOnCreate(buf);
}
_nextVariableSizeSymbolNumber++;
}
void
TR_Debug::addInstructionComment(TR::Instruction *instr, char * comment, ...)
{
TR_ASSERT(_comp, "Required compilation object is NULL.\n");
if (comment == NULL || _comp->getOutFile() == NULL )
return;
CS2::HashIndex hashIndex;
if (_comp->getToCommentMap().Locate(instr, hashIndex))
{
List<char> *comments = _comp->getToCommentMap().DataAt(hashIndex);
comments->add(comment);
}
else
{
List<char> *comments = new (_comp->trHeapMemory()) List<char>(_comp->trMemory());
comments->add(comment);
_comp->getToCommentMap().Add(instr, comments);
}
}
const char *
TR_Debug::getDiagnosticFormat(const char *format, char *buffer, int32_t length)
{
if (!_comp->getOption(TR_MaskAddresses))
return format;
bool allowedToWrite = true;
bool sawPercentP = false;
int32_t j = 0;
const char *c = format;
for (; *c; c++, j++)
{
if (j >= length)
allowedToWrite = false;
if (allowedToWrite)
buffer[j] = *c;
if (*c == '%')
{
++c; ++j;
const char *base = c;
while (*c == '*' || (*c >= '0' && *c <= '9'))
c++;
if (*c == 'p')
{
char s[] = ".0s*Masked*";
int32_t slen = sizeof(s)/sizeof(char);
if (j+slen >= length)
allowedToWrite = false;
if (allowedToWrite)
memcpy(&buffer[j], s, slen);
j+=slen-2;
sawPercentP = true;
}
else
{
if (j+c-base+1 >= length)
allowedToWrite = false;
if (allowedToWrite)
memcpy(&buffer[j], base, c-base+1);
j+=static_cast<int32_t>(c-base);
}
}
}
if (j >= length)
allowedToWrite = false;
if (allowedToWrite)
buffer[j] = 0; // null terminate
j++;
if (!sawPercentP)
return format;
if (allowedToWrite)
return buffer;
// allocate a jitMalloc buffer of the correct size
buffer = (char *) _comp->trMemory()->allocateHeapMemory(j);
return getDiagnosticFormat(format, buffer, j);
}
bool
TR_Debug::performTransformationImpl(bool canOmitTransformation, const char * format, ...)
{
int32_t optIndex = _comp->getOptIndex();
int32_t firstOptIndex = _comp->getOptions()->getFirstOptIndex();
int32_t lastOptIndex = _comp->getOptions()->getLastOptIndex();
// An opt that is marked as MustBeDone will always run.
// However, we need to omit optional transformations when the opt is supposed
// to be prohibited by firstOptIndex and lastOptIndex
//
if (canOmitTransformation && (optIndex < firstOptIndex || optIndex > lastOptIndex))
return false;
if (_comp->getOptimizer())
_comp->getOptimizer()->incOptMessageIndex();
const char *string = format; // without formattedString, we do our best with the format string itself
bool alreadyFormatted = false;
char messageBuffer[300];
// We try to avoid doing the work of formatting the string if we don't need to.
//
if ( (_comp->getOption(TR_CountOptTransformations) && _comp->getOptions()->getVerboseOptTransformationsRegex())
|| (_file != NULL && canOmitTransformation && _comp->getOptions()->getDisabledOptTransformations()))
{
va_list args;
va_start(args,format);
string = formattedString(messageBuffer, sizeof(messageBuffer), format, args);
va_end(args);
alreadyFormatted = true;
}
if (_comp->getOption(TR_CountOptTransformations))
{
TR::SimpleRegex * regex = _comp->getOptions()->getVerboseOptTransformationsRegex();
if (regex && TR::SimpleRegex::match(regex, string))
{
_comp->incVerboseOptTransformationCount();
}
}
static int32_t curTransformationIndex=0;
if (canOmitTransformation)
{
++curTransformationIndex;
_comp->incOptSubIndex();
TR::SimpleRegex * regex = _comp->getOptions()->getDisabledOptTransformations();
if (regex && (TR::SimpleRegex::match(regex, curTransformationIndex) || TR::SimpleRegex::match(regex, string)))
return false;
if (curTransformationIndex < _comp->getOptions()->getFirstOptTransformationIndex() ||
curTransformationIndex > _comp->getOptions()->getLastOptTransformationIndex())
return false;
if (optIndex == lastOptIndex
&& _comp->getOptSubIndex() > _comp->getOptions()->getLastOptSubIndex())
return false;
//
// Ok, we're doing this transformation
//
if (optIndex == comp()->getLastBegunOptIndex())
comp()->recordPerformedOptTransformation();
}
// No need to do the printing logic below if there's no log file
//
if (_file == NULL)
return true;
if (canOmitTransformation)
{
if (_registerAssignmentTraceFlags & TRACERA_IN_PROGRESS)
trfprintf(_file, "\n"); // traceRA convention is a newline at the start rather than the end
trfprintf(_file, "[%6d] ", curTransformationIndex);
if (optIndex == lastOptIndex)
{
trfprintf(_file, "%3d.%-4d ", optIndex, _comp->getOptSubIndex());
}
if ((format[0] == '%' && format[1] == 's') || (format[0] == 'O' && format[1] == '^' && format[2] == 'O'))
{
;
}
else
{
// prefix the string with O^O so that tooling can easily count transformations
// this should already be in most transformations but it could get accidentally dropped
trfprintf(_file, "O^O (Unknown Transformation):");
}
}
else if (_registerAssignmentTraceFlags & TRACERA_IN_PROGRESS)
trfprintf(_file, "\n ");
else
trfprintf(_file, " ");
char buffer[200];
va_list args;
va_start(args,format);
TR::IO::vfprintf(_file, getDiagnosticFormat(format, buffer, sizeof(buffer)/sizeof(char)), args);
va_end(args);
trfflush(_file);
roundAddressEnumerationCounters();
return true;
}
void
TR_Debug::trace(const char * format, ...)
{
if (_file != NULL)
{
va_list args;
va_start(args,format);
vtrace(format, args);
va_end(args);
}
}
void
TR_Debug::vtrace(const char * format, va_list args)
{
if (_file != NULL)
{
char buffer[256];
if ((0 != TR::Options::_traceFileLength) &&
(static_cast<int64_t>(TR::IO::ftell(_file)) > (static_cast<int64_t>(TR::Options::_traceFileLength) << 20)))
{
TR::IO::fseek(_file, 0, SEEK_SET); // rewind the trace file
TR::IO::fprintf(_file, "Rewind trace file ...\n\n\n");
}
TR::IO::vfprintf(_file, getDiagnosticFormat(format, buffer, sizeof(buffer)), args);
trfflush(_file);
}
}
void
TR_Debug::traceLnFromLogTracer(const char *preFormatted)
{
if (_file != NULL)
{
trfprintf(_file,preFormatted);
trfprintf(_file,"\n");
trfflush(_file);
}
}
void
TR_Debug::printInstruction(TR::Instruction *instr)
{
if (_file != NULL)
{
print(_file, instr);
trfflush(_file);
}
}
void
TR_Debug::printHeader()
{
if (_file == NULL)
return;
trfprintf(_file, "\n=======>%s\n", signature(_comp->getMethodSymbol()));
}
void
TR_Debug::printMethodHotness()
{
if (_file == NULL)
return;
trfprintf(_file, "\nThis method is %s", _comp->getHotnessName(_comp->getMethodHotness()));
if (_comp->getRecompilationInfo() &&
_comp->getRecompilationInfo()->isProfilingCompilation())
trfprintf(_file, " and will be profiled");
trfprintf(_file, "\n");
}
void
TR_Debug::printInstrDumpHeader(const char * title)
{
if (_file == NULL)
return;
int addressFieldWidth = TR::Compiler->debug.hexAddressFieldWidthInChars();
int codeByteColumnWidth = TR::Compiler->debug.codeByteColumnWidth();
int prefixWidth = addressFieldWidth * 2 + codeByteColumnWidth + 12; // 8 bytes of offsets, 2 spaces, and opening and closing brackets
const char *lineNumber = "";
if (strcmp(title, "Post Instruction Selection Instructions") == 0 || strcmp(title, "Post Register Assignment Instructions") == 0)
{
trfprintf(_file, "\n%*s+--------------------------------------- instruction address", addressFieldWidth-2, " ");
trfprintf(_file, "\n%*s| +------------------------------------------ %s", addressFieldWidth-2, " ",lineNumber);
trfprintf(_file, "\n%*s| | +----------------------------------------- instruction", addressFieldWidth-2, " ");
trfprintf(_file, "\n%*s| | |", addressFieldWidth-2, " ");
trfprintf(_file, "\n%*sV V V", addressFieldWidth-2, " ");
}
else
{
trfprintf(_file, "\n%*s+--------------------------------------- instruction address", addressFieldWidth - 1, " ");
trfprintf(_file, "\n%*s| +----------------------------------------- instruction offset from start of method", addressFieldWidth - 1, " ");
trfprintf(_file, "\n%*s| | %*s+------------------------------------------ corresponding TR::Instruction instance", addressFieldWidth - 1, " ", addressFieldWidth, " ");
trfprintf(_file, "\n%*s| | %*s| +-------------------------------------------------- code bytes", addressFieldWidth - 1, " ", addressFieldWidth, " ");
trfprintf(_file, "\n%*s| | %*s| |%*s+-------------------------------------- %sopcode and operands", addressFieldWidth - 1, " ", addressFieldWidth, " ", codeByteColumnWidth - 2, " ", lineNumber);
trfprintf(_file, "\n%*s| | %*s| |%*s|\t\t\t\t+----------- additional information", addressFieldWidth - 1, " ", addressFieldWidth, " ", codeByteColumnWidth - 2, " ");
trfprintf(_file, "\n%*s| | %*s| |%*s|\t\t\t\t|", addressFieldWidth - 1, " ", addressFieldWidth, " ", codeByteColumnWidth - 2, " ");
trfprintf(_file, "\n%*sV V %*sV V%*sV\t\t\t\tV", addressFieldWidth - 1, " ", addressFieldWidth, " ", codeByteColumnWidth - 2, " ");
}
}
#define MAX_PREFIX_WIDTH 80
// Prints the prefix of a dumped instruction, which includes its address in the
// code cache, its offset from the beginning of the method, the code bytes, and
// the address of the corresponding TR_Instruction object.
//
// If binary encoding has not been performend, only the last item is printed.
// The instruction address, offset and code bytes columns are compressed.
//
// If no TR_Instruction object is given (instr == NULL), the column is left blank.
//
// If it is currently the assembly generation phase, no prefix is printed.
//
// Returns the address of the last printed code byte.
//
uint8_t *
TR_Debug::printPrefix(TR::FILE *pOutFile, TR::Instruction *instr, uint8_t *cursor, uint8_t size)
{
if (cursor != NULL)
{
uint32_t offset = static_cast<uint32_t>(cursor - _comp->cg()->getCodeStart());
char prefix[MAX_PREFIX_WIDTH + 1];
int addressFieldWidth = TR::Compiler->debug.hexAddressFieldWidthInChars();
int codeByteColumnWidth = TR::Compiler->debug.codeByteColumnWidth();
int prefixWidth = addressFieldWidth * 2 + codeByteColumnWidth + 12; // 8 bytes of offsets, 2 spaces, and opening and closing brackets
if (_comp->getOption(TR_MaskAddresses))
{
if (instr)
sprintf(prefix, "%*s %08x [%s]", addressFieldWidth, "*Masked*", offset, getName(instr));
else
sprintf(prefix, "%*s %08x %*s", addressFieldWidth, "*Masked*", offset, addressFieldWidth + 2, " ");
}
else
{
if (instr)
sprintf(prefix, POINTER_PRINTF_FORMAT " %08x [%s]", cursor, offset, getName(instr));
else
sprintf(prefix, POINTER_PRINTF_FORMAT " %08x %*s", cursor, offset, addressFieldWidth + 2, " ");
}
char *p0 = prefix;
char *p1 = prefix + strlen(prefix);
// Print machine code in bytes on X86, in words on PPC,ARM,ARM64
// Stop if we try to run over the buffer.
if (_comp->target().cpu.isX86())
{
for (int i = 0; i < size && p1 - p0 + 3 < prefixWidth; i++, p1 += 3)
sprintf(p1, " %02x", *cursor++);
}
else if (_comp->target().cpu.isPower() || _comp->target().cpu.isARM() || _comp->target().cpu.isARM64())
{
for (int i = 0; i < size && p1 - p0 + 9 < prefixWidth; i += 4, p1 += 9, cursor += 4)
sprintf(p1, " %08x", *((uint32_t *)cursor));
}
else // FIXME: Need a better general form
{
for (int i = 0; i < size && p1 - p0 + 3 < prefixWidth; i++, p1 += 3)
sprintf(p1, " %02x", *cursor++);
}
int32_t leftOver = static_cast<int32_t>(p0 + prefixWidth - p1);
if (leftOver >= 1)
{
memset(p1, ' ', leftOver);
p1[leftOver] = '\0';
}
trfprintf(pOutFile, "\n%s", prefix);
}
else if (_registerAssignmentTraceFlags & TRACERA_IN_PROGRESS)
{
const char *spaces = " ";
int16_t padding = 30 - _registerAssignmentTraceCursor;
if (padding < 0)
trfprintf(_file, "\n%.*s", 30, spaces);
else if (padding > 0)
trfprintf(_file, "%.*s", padding, spaces);
_registerAssignmentTraceCursor = 30;
if (_registerAssignmentTraceFlags & TRACERA_INSTRUCTION_INSERTED)
trfprintf(pOutFile, " <%s>\t", getName(instr));
else
trfprintf(pOutFile, " [%s]\t", getName(instr));
}
else
{
trfprintf(pOutFile, "\n [%s]\t", getName(instr));
}
return cursor;
}
void
TR_Debug::printSnippetLabel(TR::FILE *pOutFile, TR::LabelSymbol *label, uint8_t *cursor, const char *comment1, const char *comment2)
{
int addressFieldWidth = TR::Compiler->debug.hexAddressFieldWidthInChars();
int codeByteColumnWidth = TR::Compiler->debug.codeByteColumnWidth();
int prefixWidth = addressFieldWidth * 2 + codeByteColumnWidth + 12; // 8 bytes of offsets, 2 spaces, and opening and closing brackets
uint32_t offset = static_cast<uint32_t>(cursor - _comp->cg()->getCodeStart());
if (_comp->getOption(TR_MaskAddresses))
{
trfprintf(pOutFile, "\n\n%*s %08x %*s", TR::Compiler->debug.hexAddressFieldWidthInChars(), "*Masked*", offset, addressFieldWidth + codeByteColumnWidth + 2, " ");
}
else
{
trfprintf(pOutFile, "\n\n" POINTER_PRINTF_FORMAT " %08x %*s", cursor, offset, addressFieldWidth + codeByteColumnWidth + 2, " ");
}
print(pOutFile, label);
trfprintf(pOutFile, ":");
if (comment1)
{
trfprintf(pOutFile, "\t\t%c %s", (_comp->target().cpu.isX86() && _comp->target().isLinux()) ? '#' : ';', comment1);
if (comment2)
trfprintf(pOutFile, " (%s)", comment2);
}
}
void
TR_Debug::print(TR::FILE *pOutFile, TR_BitVector * bv)
{
if (pOutFile == NULL) return;
trfprintf(pOutFile,"{");
bool firstOne = true;
TR_BitVectorIterator bvi(*bv);
int32_t num = 0;
while (bvi.hasMoreElements())
{
if (!firstOne)
trfprintf(pOutFile,", ");
else
firstOne = false;
trfprintf(pOutFile,"%d",bvi.getNextElement());
if (num > 30)
{
trfprintf(pOutFile,"\n");
num = 0;
}
num++;
}
trfprintf(pOutFile,"}");
}
void
TR_Debug::print(TR::FILE *pOutFile, TR_SingleBitContainer *sbc)
{
if (pOutFile == NULL) return;
if (sbc->isEmpty())
trfprintf(pOutFile,"{}");
else
trfprintf(pOutFile,"{0}");
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::BitVector * bv)
{
if (pOutFile == NULL) return;
trfprintf(pOutFile,"{");
bool firstOne = true;
int32_t num = 0;
TR::BitVector::Cursor bi(*bv);
for (bi.SetToFirstOne(); bi.Valid(); bi.SetToNextOne())
{
if (!firstOne)
trfprintf(pOutFile, ", ");
else
firstOne = false;
trfprintf(pOutFile, "%d", (uint32_t) bi);
if (num > 30)
{
trfprintf(pOutFile,"\n");
num = 0;
}
num++;
}
trfprintf(pOutFile, "}");
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::SparseBitVector * sparse)
{
if (pOutFile == NULL) return;
trfprintf(pOutFile,"{");
bool firstOne = true;
int32_t num = 0;
TR::SparseBitVector::Cursor bi(*sparse);
for (bi.SetToFirstOne(); bi.Valid(); bi.SetToNextOne())
{
if (!firstOne)
trfprintf(pOutFile, ", ");
else
firstOne = false;
trfprintf(pOutFile, "%d", (uint32_t) bi);
if (num > 30)
{
trfprintf(pOutFile,"\n");
num = 0;
}
num++;
}
trfprintf(pOutFile, "}");
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::SymbolReference * symRef)
{
if (pOutFile == NULL) return;
TR_PrettyPrinterString output(this);
print(symRef, output);
trfprintf(pOutFile, "%s", output.getStr());
trfflush(pOutFile);
}
const char *
TR_Debug::signature(TR::ResolvedMethodSymbol *s)
{
#ifdef J9_PROJECT_SPECIFIC
if (s->getRecognizedMethod() == TR::java_lang_Class_newInstancePrototype)
return s->getResolvedMethod()->newInstancePrototypeSignature(_comp->trMemory());
#endif
return s->signature(_comp->trMemory());
}
TR_OpaqueClassBlock *
TR_Debug::containingClass(TR::SymbolReference *symRef)
{
TR::Method *method = symRef->getSymbol()->castToMethodSymbol()->getMethod();
if (method)
{
char *className = method->classNameChars();
uint16_t classNameLen = method->classNameLength();
return fe()->getClassFromSignature(className, classNameLen, symRef->getOwningMethod(comp()));
}
return NULL;
}
void
TR_Debug::nodePrintAllFlags(TR::Node *node, TR_PrettyPrinterString &output)
{
// This guard info is not strictly speaking in the node flags anymore, but
// with the node flags is a good place to show it.
TR_VirtualGuard *guard = node->virtualGuardInfo();
if (guard != NULL)
{
const char *kind = getVirtualGuardKindName(guard->getKind());
const char *testType = getVirtualGuardTestTypeName(guard->getTestType());
output.appendf("%s/%s", kind, testType);
if (guard->mergedWithHCRGuard())
output.appends("+HCRGuard");
if (guard->mergedWithOSRGuard())
output.appends("+OSRGuard");
if (!guard->getInnerAssumptions().isEmpty())
output.appends("+inner");
output.appends(" ");
}
#define FLAG_IF(cond, text) do { if (cond) output.appends(text " "); } while (false)
#define FLAG(query, text) FLAG_IF(node->query(), text)
FLAG(chkFoldedImplicitNULLCHK, "foldedImplicitNULLCHK");
FLAG(chkHighWordZero, "highWordZero");
FLAG(chkUnsigned, "Unsigned");
FLAG(chkClassPointerConstant, "classPointerConstant");
FLAG(chkMethodPointerConstant, "methodPointerConstant");
FLAG(chkSafeToSkipTableBoundCheck, "safeToSkipTblBndChk");
FLAG(isProfilingCode, "profilingCode");
FLAG(isZero, "X==0");
FLAG(isNonZero, "X!=0");
FLAG(isNonNegative, "X>=0");
FLAG(isNonPositive, "X<=0");
FLAG(chkPointsToNull, "*X==null");
FLAG(nodeRequiresConditionCodes, "requiresConditionCodes");
FLAG(isUnneededConversion, "unneededConv");
FLAG(parentSupportsLazyClobber, "lazyClobber");
FLAG(isFPStrictCompliant, "FPPrecise");
FLAG(chkCannotOverflow, "cannotOverflow");
FLAG(chkPointsToNonNull, "nodePointsToNonNull");
FLAG(isInvalid8BitGlobalRegister, "invalid8BitGlobalRegister");
FLAG(isDirectMemoryUpdate, "directMemoryUpdate");
FLAG(chkTheVirtualCallNodeForAGuardedInlinedCall, "virtualCallNodeForAGuardedInlinedCall");
FLAG(chkDontTransformArrayCopyCall, "dontTransformArrayCopyCall");
FLAG(chkNodeRecognizedArrayCopyCall, "nodeRecognizedArrayCopyCall");