mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 04:29:21 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32340 91177308-0d34-0410-b5e6-96231b3b80d8
139 lines
4.8 KiB
C++
139 lines
4.8 KiB
C++
//===-- SourceLanguage-Unknown.cpp - Implement itf for unknown languages --===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// If the LLVM debugger does not have a module for a particular language, it
|
|
// falls back on using this one to perform the source-language interface. This
|
|
// interface is not wonderful, but it gets the job done.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Debugger/SourceLanguage.h"
|
|
#include "llvm/Debugger/ProgramInfo.h"
|
|
#include "llvm/Support/Streams.h"
|
|
#include <cassert>
|
|
#include <ostream>
|
|
using namespace llvm;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Implement the SourceLanguage cache for the Unknown language.
|
|
//
|
|
|
|
namespace {
|
|
/// SLUCache - This cache allows for efficient lookup of source functions by
|
|
/// name.
|
|
///
|
|
struct SLUCache : public SourceLanguageCache {
|
|
ProgramInfo &PI;
|
|
std::multimap<std::string, SourceFunctionInfo*> FunctionMap;
|
|
public:
|
|
SLUCache(ProgramInfo &pi);
|
|
|
|
typedef std::multimap<std::string, SourceFunctionInfo*>::const_iterator
|
|
fm_iterator;
|
|
|
|
std::pair<fm_iterator, fm_iterator>
|
|
getFunction(const std::string &Name) const {
|
|
return FunctionMap.equal_range(Name);
|
|
}
|
|
|
|
SourceFunctionInfo *addSourceFunction(SourceFunctionInfo *SF) {
|
|
FunctionMap.insert(std::make_pair(SF->getSymbolicName(), SF));
|
|
return SF;
|
|
}
|
|
};
|
|
}
|
|
|
|
SLUCache::SLUCache(ProgramInfo &pi) : PI(pi) {
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Implement SourceLanguageUnknown class, which is used to handle unrecognized
|
|
// languages.
|
|
//
|
|
|
|
namespace {
|
|
struct SLU : public SourceLanguage {
|
|
//===------------------------------------------------------------------===//
|
|
// Implement the miscellaneous methods...
|
|
//
|
|
virtual const char *getSourceLanguageName() const {
|
|
return "unknown";
|
|
}
|
|
|
|
/// lookupFunction - Given a textual function name, return the
|
|
/// SourceFunctionInfo descriptor for that function, or null if it cannot be
|
|
/// found. If the program is currently running, the RuntimeInfo object
|
|
/// provides information about the current evaluation context, otherwise it
|
|
/// will be null.
|
|
///
|
|
virtual SourceFunctionInfo *lookupFunction(const std::string &FunctionName,
|
|
ProgramInfo &PI,
|
|
RuntimeInfo *RI = 0) const;
|
|
|
|
//===------------------------------------------------------------------===//
|
|
// We do use a cache for information...
|
|
//
|
|
typedef SLUCache CacheType;
|
|
SLUCache *createSourceLanguageCache(ProgramInfo &PI) const {
|
|
return new SLUCache(PI);
|
|
}
|
|
|
|
/// createSourceFunctionInfo - Create the new object and inform the cache of
|
|
/// the new function.
|
|
virtual SourceFunctionInfo *
|
|
createSourceFunctionInfo(const GlobalVariable *Desc, ProgramInfo &PI) const;
|
|
|
|
} TheUnknownSourceLanguageInstance;
|
|
}
|
|
|
|
const SourceLanguage &SourceLanguage::getUnknownLanguageInstance() {
|
|
return TheUnknownSourceLanguageInstance;
|
|
}
|
|
|
|
|
|
SourceFunctionInfo *
|
|
SLU::createSourceFunctionInfo(const GlobalVariable *Desc,
|
|
ProgramInfo &PI) const {
|
|
SourceFunctionInfo *Result = new SourceFunctionInfo(PI, Desc);
|
|
return PI.getLanguageCache(this).addSourceFunction(Result);
|
|
}
|
|
|
|
|
|
/// lookupFunction - Given a textual function name, return the
|
|
/// SourceFunctionInfo descriptor for that function, or null if it cannot be
|
|
/// found. If the program is currently running, the RuntimeInfo object
|
|
/// provides information about the current evaluation context, otherwise it will
|
|
/// be null.
|
|
///
|
|
SourceFunctionInfo *SLU::lookupFunction(const std::string &FunctionName,
|
|
ProgramInfo &PI, RuntimeInfo *RI) const{
|
|
SLUCache &Cache = PI.getLanguageCache(this);
|
|
std::pair<SLUCache::fm_iterator, SLUCache::fm_iterator> IP
|
|
= Cache.getFunction(FunctionName);
|
|
|
|
if (IP.first == IP.second) {
|
|
if (PI.allSourceFunctionsRead())
|
|
return 0; // Nothing found
|
|
|
|
// Otherwise, we might be able to find the function if we read all of them
|
|
// in. Do so now.
|
|
PI.getSourceFunctions();
|
|
assert(PI.allSourceFunctionsRead() && "Didn't read in all functions?");
|
|
return lookupFunction(FunctionName, PI, RI);
|
|
}
|
|
|
|
SourceFunctionInfo *Found = IP.first->second;
|
|
++IP.first;
|
|
if (IP.first != IP.second)
|
|
cout << "Whoa, found multiple functions with the same name. I should"
|
|
<< " ask the user which one to use: FIXME!\n";
|
|
return Found;
|
|
}
|