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//===-- LanguageRuntime.cpp -------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/LanguageRuntime.h"
#include "lldb/Target/Target.h"
#include "lldb/Core/PluginManager.h"
using namespace lldb;
using namespace lldb_private;
LanguageRuntime*
LanguageRuntime::FindPlugin (Process *process, lldb::LanguageType language)
{
std::auto_ptr<LanguageRuntime> language_runtime_ap;
LanguageRuntimeCreateInstance create_callback;
for (uint32_t idx = 0;
(create_callback = PluginManager::GetLanguageRuntimeCreateCallbackAtIndex(idx)) != NULL;
++idx)
{
language_runtime_ap.reset (create_callback(process, language));
if (language_runtime_ap.get())
return language_runtime_ap.release();
}
return NULL;
}
//----------------------------------------------------------------------
// Constructor
//----------------------------------------------------------------------
LanguageRuntime::LanguageRuntime(Process *process) :
m_process (process)
{
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
LanguageRuntime::~LanguageRuntime()
{
}
BreakpointSP
LanguageRuntime::CreateExceptionBreakpoint(
Target &target,
lldb::LanguageType language,
bool catch_bp,
bool throw_bp,
bool is_internal)
{
BreakpointSP exc_breakpt_sp;
BreakpointResolverSP resolver_sp(new ExceptionBreakpointResolver(NULL, language, catch_bp, throw_bp));
SearchFilterSP filter_sp(target.GetSearchFilterForModule(NULL));
exc_breakpt_sp = target.CreateBreakpoint (filter_sp, resolver_sp, is_internal);
if (is_internal)
exc_breakpt_sp->SetBreakpointKind("exception");
return exc_breakpt_sp;
}
LanguageRuntime::ExceptionBreakpointResolver::ExceptionBreakpointResolver (Breakpoint *bkpt,
LanguageType language,
bool catch_bp,
bool throw_bp) :
BreakpointResolver (bkpt, BreakpointResolver::ExceptionResolver),
m_language (language),
m_catch_bp (catch_bp),
m_throw_bp (throw_bp)
{
}
void
LanguageRuntime::ExceptionBreakpointResolver::GetDescription (Stream *s)
{
s->Printf ("Exception breakpoint (catch: %s throw: %s)",
m_catch_bp ? "on" : "off",
m_throw_bp ? "on" : "off");
SetActualResolver();
if (m_actual_resolver_sp)
{
s->Printf (" using: ");
m_actual_resolver_sp->GetDescription (s);
}
else
s->Printf (" the correct runtime exception handler will be determined when you run");
}
bool
LanguageRuntime::ExceptionBreakpointResolver::SetActualResolver()
{
ProcessSP process_sp = m_process_wp.lock();
// See if our process weak pointer is still good:
if (!process_sp)
{
// If not, our resolver is no good, so chuck that. Then see if we can get the
// target's new process.
m_actual_resolver_sp.reset();
if (m_breakpoint)
{
Target &target = m_breakpoint->GetTarget();
process_sp = target.GetProcessSP();
if (process_sp)
{
m_process_wp = process_sp;
process_sp = m_process_wp.lock();
}
}
}
if (process_sp)
{
if (m_actual_resolver_sp)
return true;
else
{
// If we have a process but not a resolver, set one now.
LanguageRuntime *runtime = process_sp->GetLanguageRuntime(m_language);
if (runtime)
{
m_actual_resolver_sp = runtime->CreateExceptionResolver (m_breakpoint, m_catch_bp, m_throw_bp);
return (bool) m_actual_resolver_sp;
}
else
return false;
}
}
else
return false;
}
Searcher::CallbackReturn
LanguageRuntime::ExceptionBreakpointResolver::SearchCallback (SearchFilter &filter,
SymbolContext &context,
Address *addr,
bool containing)
{
if (!SetActualResolver())
{
return eCallbackReturnStop;
}
else
return m_actual_resolver_sp->SearchCallback (filter, context, addr, containing);
}
Searcher::Depth
LanguageRuntime::ExceptionBreakpointResolver::GetDepth ()
{
if (!SetActualResolver())
return eDepthTarget;
else
return m_actual_resolver_sp->GetDepth();
}
/*
typedef enum LanguageType
{
eLanguageTypeUnknown = 0x0000, ///< Unknown or invalid language value.
eLanguageTypeC89 = 0x0001, ///< ISO C:1989.
eLanguageTypeC = 0x0002, ///< Non-standardized C, such as K&R.
eLanguageTypeAda83 = 0x0003, ///< ISO Ada:1983.
eLanguageTypeC_plus_plus = 0x0004, ///< ISO C++:1998.
eLanguageTypeCobol74 = 0x0005, ///< ISO Cobol:1974.
eLanguageTypeCobol85 = 0x0006, ///< ISO Cobol:1985.
eLanguageTypeFortran77 = 0x0007, ///< ISO Fortran 77.
eLanguageTypeFortran90 = 0x0008, ///< ISO Fortran 90.
eLanguageTypePascal83 = 0x0009, ///< ISO Pascal:1983.
eLanguageTypeModula2 = 0x000a, ///< ISO Modula-2:1996.
eLanguageTypeJava = 0x000b, ///< Java.
eLanguageTypeC99 = 0x000c, ///< ISO C:1999.
eLanguageTypeAda95 = 0x000d, ///< ISO Ada:1995.
eLanguageTypeFortran95 = 0x000e, ///< ISO Fortran 95.
eLanguageTypePLI = 0x000f, ///< ANSI PL/I:1976.
eLanguageTypeObjC = 0x0010, ///< Objective-C.
eLanguageTypeObjC_plus_plus = 0x0011, ///< Objective-C++.
eLanguageTypeUPC = 0x0012, ///< Unified Parallel C.
eLanguageTypeD = 0x0013, ///< D.
eLanguageTypePython = 0x0014 ///< Python.
} LanguageType;
*/
struct language_name_pair {
const char *name;
LanguageType type;
};
struct language_name_pair language_names[] =
{
// To allow GetNameForLanguageType to be a simple array lookup, the first
// part of this array must follow enum LanguageType exactly.
{ "unknown", eLanguageTypeUnknown },
{ "c89", eLanguageTypeC89 },
{ "c", eLanguageTypeC },
{ "ada83", eLanguageTypeAda83 },
{ "c++", eLanguageTypeC_plus_plus },
{ "cobol74", eLanguageTypeCobol74 },
{ "cobol85", eLanguageTypeCobol85 },
{ "fortran77", eLanguageTypeFortran77 },
{ "fortran90", eLanguageTypeFortran90 },
{ "pascal83", eLanguageTypePascal83 },
{ "modula2", eLanguageTypeModula2 },
{ "java", eLanguageTypeJava },
{ "c99", eLanguageTypeC99 },
{ "ada95", eLanguageTypeAda95 },
{ "fortran95", eLanguageTypeFortran95 },
{ "pli", eLanguageTypePLI },
{ "objective-c", eLanguageTypeObjC },
{ "objective-c++", eLanguageTypeObjC_plus_plus },
{ "upc", eLanguageTypeUPC },
{ "d", eLanguageTypeD },
{ "python", eLanguageTypePython },
// Now synonyms, in arbitrary order
{ "objc", eLanguageTypeObjC },
{ "objc++", eLanguageTypeObjC_plus_plus }
};
static uint32_t num_languages = sizeof(language_names) / sizeof (struct language_name_pair);
LanguageType
LanguageRuntime::GetLanguageTypeFromString (const char *string)
{
for (uint32_t i = 0; i < num_languages; i++)
{
if (strcasecmp (language_names[i].name, string) == 0)
return (LanguageType) language_names[i].type;
}
return eLanguageTypeUnknown;
}
const char *
LanguageRuntime::GetNameForLanguageType (LanguageType language)
{
if (language < num_languages)
return language_names[language].name;
else
return language_names[eLanguageTypeUnknown].name;
}
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