本文整理汇总了C++中UnwindInfo类的典型用法代码示例。如果您正苦于以下问题:C++ UnwindInfo类的具体用法?C++ UnwindInfo怎么用?C++ UnwindInfo使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了UnwindInfo类的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: printUnwindCode
// Prints one unwind code. Because an unwind code can occupy up to 3 slots in
// the unwind codes array, this function requires that the correct number of
// slots is provided.
void Dumper::printUnwindCode(const UnwindInfo& UI, ArrayRef<UnwindCode> UC) {
assert(UC.size() >= getNumUsedSlots(UC[0]));
SW.startLine() << format("0x%02X: ", unsigned(UC[0].u.CodeOffset))
<< getUnwindCodeTypeName(UC[0].getUnwindOp());
switch (UC[0].getUnwindOp()) {
case UOP_PushNonVol:
OS << " reg=" << getUnwindRegisterName(UC[0].getOpInfo());
break;
case UOP_AllocLarge:
OS << " size="
<< ((UC[0].getOpInfo() == 0) ? UC[1].FrameOffset * 8
: getLargeSlotValue(UC));
break;
case UOP_AllocSmall:
OS << " size=" << (UC[0].getOpInfo() + 1) * 8;
break;
case UOP_SetFPReg:
if (UI.getFrameRegister() == 0)
OS << " reg=<invalid>";
else
OS << " reg=" << getUnwindRegisterName(UI.getFrameRegister())
<< format(", offset=0x%X", UI.getFrameOffset() * 16);
break;
case UOP_SaveNonVol:
OS << " reg=" << getUnwindRegisterName(UC[0].getOpInfo())
<< format(", offset=0x%X", UC[1].FrameOffset * 8);
break;
case UOP_SaveNonVolBig:
OS << " reg=" << getUnwindRegisterName(UC[0].getOpInfo())
<< format(", offset=0x%X", getLargeSlotValue(UC));
break;
case UOP_SaveXMM128:
OS << " reg=XMM" << static_cast<uint32_t>(UC[0].getOpInfo())
<< format(", offset=0x%X", UC[1].FrameOffset * 16);
break;
case UOP_SaveXMM128Big:
OS << " reg=XMM" << static_cast<uint32_t>(UC[0].getOpInfo())
<< format(", offset=0x%X", getLargeSlotValue(UC));
break;
case UOP_PushMachFrame:
OS << " errcode=" << (UC[0].getOpInfo() == 0 ? "no" : "yes");
break;
}
OS << "\n";
}
开发者ID:IanLee1521,项目名称:ares,代码行数:59,代码来源:Win64EHDumper.cpp
示例2: UIS
void Dumper::printUnwindInfo(const Context &Ctx, const coff_section *Section,
off_t Offset, const UnwindInfo &UI) {
DictScope UIS(SW, "UnwindInfo");
SW.printNumber("Version", UI.getVersion());
SW.printFlags("Flags", UI.getFlags(), makeArrayRef(UnwindFlags));
SW.printNumber("PrologSize", UI.PrologSize);
if (UI.getFrameRegister()) {
SW.printEnum("FrameRegister", UI.getFrameRegister(),
makeArrayRef(UnwindOpInfo));
SW.printHex("FrameOffset", UI.getFrameOffset());
} else {
SW.printString("FrameRegister", StringRef("-"));
SW.printString("FrameOffset", StringRef("-"));
}
SW.printNumber("UnwindCodeCount", UI.NumCodes);
{
ListScope UCS(SW, "UnwindCodes");
ArrayRef<UnwindCode> UC(&UI.UnwindCodes[0], UI.NumCodes);
for (const UnwindCode *UCI = UC.begin(), *UCE = UC.end(); UCI < UCE; ++UCI) {
unsigned UsedSlots = getNumUsedSlots(*UCI);
if (UsedSlots > UC.size()) {
errs() << "corrupt unwind data";
return;
}
printUnwindCode(UI, ArrayRef<UnwindCode>(UCI, UCE));
UCI = UCI + UsedSlots - 1;
}
}
uint64_t LSDAOffset = Offset + getOffsetOfLSDA(UI);
if (UI.getFlags() & (UNW_ExceptionHandler | UNW_TerminateHandler)) {
SW.printString("Handler",
formatSymbol(Ctx, Section, LSDAOffset,
UI.getLanguageSpecificHandlerOffset()));
} else if (UI.getFlags() & UNW_ChainInfo) {
if (const RuntimeFunction *Chained = UI.getChainedFunctionEntry()) {
DictScope CS(SW, "Chained");
printRuntimeFunctionEntry(Ctx, Section, LSDAOffset, *Chained);
}
}
}
开发者ID:IanLee1521,项目名称:ares,代码行数:43,代码来源:Win64EHDumper.cpp
示例3: next_int
Object* VMMethod::interpreter(STATE,
VMMethod* const vmm,
InterpreterCallFrame* const call_frame)
{
#include "vm/gen/instruction_locations.hpp"
if(unlikely(state == 0)) {
VMMethod::instructions = const_cast<void**>(insn_locations);
return NULL;
}
InterpreterState is;
GCTokenImpl gct;
register void** ip_ptr = vmm->addresses;
Object** stack_ptr = call_frame->stk - 1;
int current_unwind = 0;
UnwindInfo unwinds[kMaxUnwindInfos];
continue_to_run:
try {
#undef DISPATCH
#define DISPATCH goto **ip_ptr++
#undef next_int
#define next_int ((opcode)(*ip_ptr++))
#define cache_ip(which) ip_ptr = vmm->addresses + which
#define flush_ip() call_frame->calculate_ip(ip_ptr)
#include "vm/gen/instruction_implementations.hpp"
} catch(TypeError& e) {
flush_ip();
Exception* exc =
Exception::make_type_error(state, e.type, e.object, e.reason);
exc->locations(state, Location::from_call_stack(state, call_frame));
state->raise_exception(exc);
call_frame->scope->flush_to_heap(state);
return NULL;
} catch(const RubyException& exc) {
exc.exception->locations(state,
Location::from_call_stack(state, call_frame));
state->raise_exception(exc.exception);
return NULL;
}
// There is no reason to be here. Either the bytecode loop exits,
// or it jumps to exception;
rubinius::bug("Control flow error in interpreter");
// If control finds it's way down here, there is an exception.
exception:
ThreadState* th = state->vm()->thread_state();
//
switch(th->raise_reason()) {
case cException:
if(current_unwind > 0) {
UnwindInfo* info = &unwinds[--current_unwind];
stack_position(info->stack_depth);
call_frame->set_ip(info->target_ip);
cache_ip(info->target_ip);
goto continue_to_run;
} else {
call_frame->scope->flush_to_heap(state);
return NULL;
}
case cBreak:
// If we're trying to break to here, we're done!
if(th->destination_scope() == call_frame->scope->on_heap()) {
stack_push(th->raise_value());
th->clear_break();
goto continue_to_run;
// Don't return here, because we want to loop back to the top
// and keep running this method.
}
// Otherwise, fall through and run the unwinds
case cReturn:
case cCatchThrow:
// Otherwise, we're doing a long return/break unwind through
// here. We need to run ensure blocks.
while(current_unwind > 0) {
UnwindInfo* info = &unwinds[--current_unwind];
if(info->for_ensure()) {
stack_position(info->stack_depth);
call_frame->set_ip(info->target_ip);
cache_ip(info->target_ip);
// Don't reset ep here, we're still handling the return/break.
goto continue_to_run;
}
}
//.........这里部分代码省略.........
开发者ID:jstepien,项目名称:rubinius,代码行数:101,代码来源:instructions.cpp
示例4: next_int
/* The debugger interpreter loop is used to run a method when a breakpoint
* has been set. It has additional overhead, since it needs to inspect
* each opcode for the breakpoint flag. It is installed on the VMMethod when
* a breakpoint is set on compiled method.
*/
Object* VMMethod::debugger_interpreter(STATE,
VMMethod* const vmm,
InterpreterCallFrame* const call_frame)
{
#include "vm/gen/instruction_locations.hpp"
opcode* stream = vmm->opcodes;
InterpreterState is;
int current_unwind = 0;
UnwindInfo unwinds[kMaxUnwindInfos];
// TODO: ug, cut and paste of the whole interpreter above. Needs to be fast,
// maybe could use a function template?
//
// The only thing different is the DISPATCH macro, to check for debugging
// instructions.
Object** stack_ptr = call_frame->stk - 1;
continue_to_run:
try {
#undef DISPATCH
#define DISPATCH \
if(Object* bp = call_frame->find_breakpoint(state)) { \
if(!Helpers::yield_debugger(state, call_frame, bp)) goto exception; \
} \
goto *insn_locations[stream[call_frame->inc_ip()]];
#undef next_int
#undef cache_ip
#undef flush_ip
#define next_int ((opcode)(stream[call_frame->inc_ip()]))
#define cache_ip(which)
#define flush_ip()
#include "vm/gen/instruction_implementations.hpp"
} catch(TypeError& e) {
flush_ip();
Exception* exc =
Exception::make_type_error(state, e.type, e.object, e.reason);
exc->locations(state, Location::from_call_stack(state, call_frame));
state->thread_state()->raise_exception(exc);
call_frame->scope->flush_to_heap(state);
return NULL;
} catch(const RubyException& exc) {
exc.exception->locations(state,
Location::from_call_stack(state, call_frame));
state->thread_state()->raise_exception(exc.exception);
return NULL;
}
// no reason to be here!
abort();
// If control finds it's way down here, there is an exception.
exception:
ThreadState* th = state->thread_state();
//
switch(th->raise_reason()) {
case cException:
if(current_unwind > 0) {
UnwindInfo* info = &unwinds[--current_unwind];
stack_position(info->stack_depth);
call_frame->set_ip(info->target_ip);
cache_ip(info->target_ip);
goto continue_to_run;
} else {
call_frame->scope->flush_to_heap(state);
return NULL;
}
case cBreak:
// If we're trying to break to here, we're done!
if(th->destination_scope() == call_frame->scope->on_heap()) {
stack_push(th->raise_value());
th->clear_break();
goto continue_to_run;
// Don't return here, because we want to loop back to the top
// and keep running this method.
}
// Otherwise, fall through and run the unwinds
case cReturn:
case cCatchThrow:
// Otherwise, we're doing a long return/break unwind through
// here. We need to run ensure blocks.
while(current_unwind > 0) {
UnwindInfo* info = &unwinds[--current_unwind];
stack_position(info->stack_depth);
//.........这里部分代码省略.........
开发者ID:FunkyFortune,项目名称:rubinius,代码行数:101,代码来源:instructions.cpp
示例5: getOffsetOfLSDA
static uint64_t getOffsetOfLSDA(const UnwindInfo& UI) {
return static_cast<const char*>(UI.getLanguageSpecificData())
- reinterpret_cast<const char*>(&UI);
}
开发者ID:IanLee1521,项目名称:ares,代码行数:4,代码来源:Win64EHDumper.cpp
注:本文中的UnwindInfo类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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