mirror of
https://github.com/xomboverlord/ldc.git
synced 2026-01-12 02:43:14 +01:00
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
#include <cassert>
|
|
|
|
#include "gen/llvm.h"
|
|
#include "llvm/Module.h"
|
|
#include "llvm/Bitcode/ReaderWriter.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
|
|
#include "root.h"
|
|
#include "mars.h"
|
|
|
|
#include "gen/runtime.h"
|
|
#include "gen/logger.h"
|
|
|
|
static llvm::Module* M = NULL;
|
|
static bool runtime_failed = false;
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool LLVM_D_InitRuntime()
|
|
{
|
|
Logger::println("*** Loading D runtime ***");
|
|
LOG_SCOPE;
|
|
|
|
if (!global.params.runtimeImppath) {
|
|
error("You must set the runtime import path with -E");
|
|
fatal();
|
|
}
|
|
std::string filename(global.params.runtimeImppath);
|
|
filename.append("/llvmdcore.bc");
|
|
llvm::MemoryBuffer* buffer = llvm::MemoryBuffer::getFile(filename.c_str(), filename.length());
|
|
if (!buffer) {
|
|
Logger::println("Failed to load runtime library from disk");
|
|
runtime_failed = true;
|
|
return false;
|
|
}
|
|
|
|
std::string errstr;
|
|
bool retval = false;
|
|
M = llvm::ParseBitcodeFile(buffer, &errstr);
|
|
if (M) {
|
|
retval = true;
|
|
}
|
|
else {
|
|
Logger::println("Failed to load runtime: %s", errstr.c_str());
|
|
runtime_failed = true;
|
|
}
|
|
|
|
delete buffer;
|
|
return retval;
|
|
}
|
|
|
|
void LLVM_D_FreeRuntime()
|
|
{
|
|
if (M) {
|
|
Logger::println("*** Freeing D runtime ***");
|
|
delete M;
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
llvm::Function* LLVM_D_GetRuntimeFunction(llvm::Module* target, const char* name)
|
|
{
|
|
// TODO maybe check the target module first, to allow overriding the runtime on a pre module basis?
|
|
// could be done and seems like it could be neat too :)
|
|
|
|
if (global.params.noruntime) {
|
|
error("No implicit runtime calls allowed with -noruntime option enabled");
|
|
fatal();
|
|
}
|
|
|
|
if (!M) {
|
|
assert(!runtime_failed);
|
|
LLVM_D_InitRuntime();
|
|
}
|
|
|
|
llvm::Function* fn = M->getFunction(name);
|
|
if (!fn) {
|
|
error("Runtime function '%s' was not found", name);
|
|
fatal();
|
|
//return NULL;
|
|
}
|
|
|
|
const llvm::FunctionType* fnty = fn->getFunctionType();
|
|
return llvm::cast<llvm::Function>(target->getOrInsertFunction(name, fnty));
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
llvm::GlobalVariable* LLVM_D_GetRuntimeGlobal(llvm::Module* target, const char* name)
|
|
{
|
|
// TODO maybe check the target module first, to allow overriding the runtime on a pre module basis?
|
|
// could be done and seems like it could be neat too :)
|
|
|
|
if (global.params.noruntime) {
|
|
error("No implicit runtime calls allowed with -noruntime option enabled");
|
|
fatal();
|
|
}
|
|
|
|
if (!M) {
|
|
assert(!runtime_failed);
|
|
LLVM_D_InitRuntime();
|
|
}
|
|
|
|
llvm::GlobalVariable* g = M->getNamedGlobal(name);
|
|
if (!g) {
|
|
error("Runtime global '%s' was not found", name);
|
|
fatal();
|
|
//return NULL;
|
|
}
|
|
|
|
const llvm::PointerType* t = g->getType();
|
|
return new llvm::GlobalVariable(t->getElementType(),g->isConstant(),g->getLinkage(),NULL,g->getName(),target);
|
|
}
|