13bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien//===-- BitReader.cpp -----------------------------------------------------===// 23bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien// 33bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien// The LLVM Compiler Infrastructure 43bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien// 53bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien// This file is distributed under the University of Illinois Open Source 63bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien// License. See LICENSE.TXT for details. 73bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien// 83bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien//===----------------------------------------------------------------------===// 93bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 103bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien#include "llvm-c/BitReader.h" 113bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien#include "llvm/Bitcode/ReaderWriter.h" 123bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien#include "llvm/LLVMContext.h" 133bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien#include "llvm/Support/MemoryBuffer.h" 143bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien#include <string> 153bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien#include <cstring> 163bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 173bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chienusing namespace llvm; 183bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 193bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien/* Builds a module from the bitcode in the specified memory buffer, returning a 203bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien reference to the module via the OutModule parameter. Returns 0 on success. 213bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien Optionally returns a human-readable error message via OutMessage. */ 223bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan ChienLLVMBool LLVMParseBitcode(LLVMMemoryBufferRef MemBuf, 233bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMModuleRef *OutModule, char **OutMessage) { 243bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return LLVMParseBitcodeInContext(wrap(&getGlobalContext()), MemBuf, OutModule, 253bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien OutMessage); 263bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien} 273bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 283bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan ChienLLVMBool LLVMParseBitcodeInContext(LLVMContextRef ContextRef, 293bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMMemoryBufferRef MemBuf, 303bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMModuleRef *OutModule, 313bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien char **OutMessage) { 323bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien std::string Message; 333bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 343bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien *OutModule = wrap(ParseBitcodeFile(unwrap(MemBuf), *unwrap(ContextRef), 353bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien &Message)); 363bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien if (!*OutModule) { 373bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien if (OutMessage) 383bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien *OutMessage = strdup(Message.c_str()); 393bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return 1; 403bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien } 413bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 423bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return 0; 433bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien} 443bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 453bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien/* Reads a module from the specified path, returning via the OutModule parameter 463bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien a module provider which performs lazy deserialization. Returns 0 on success. 473bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien Optionally returns a human-readable error message via OutMessage. */ 483bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan ChienLLVMBool LLVMGetBitcodeModuleInContext(LLVMContextRef ContextRef, 493bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMMemoryBufferRef MemBuf, 503bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMModuleRef *OutM, 513bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien char **OutMessage) { 523bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien std::string Message; 533bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 543bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien *OutM = wrap(getLazyBitcodeModule(unwrap(MemBuf), *unwrap(ContextRef), 553bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien &Message)); 563bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien if (!*OutM) { 573bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien if (OutMessage) 583bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien *OutMessage = strdup(Message.c_str()); 593bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return 1; 603bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien } 613bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 623bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return 0; 633bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 643bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien} 653bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 663bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan ChienLLVMBool LLVMGetBitcodeModule(LLVMMemoryBufferRef MemBuf, LLVMModuleRef *OutM, 673bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien char **OutMessage) { 683bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return LLVMGetBitcodeModuleInContext(LLVMGetGlobalContext(), MemBuf, OutM, 693bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien OutMessage); 703bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien} 713bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 723bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien/* Deprecated: Use LLVMGetBitcodeModuleInContext instead. */ 733bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan ChienLLVMBool LLVMGetBitcodeModuleProviderInContext(LLVMContextRef ContextRef, 743bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMMemoryBufferRef MemBuf, 753bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMModuleProviderRef *OutMP, 763bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien char **OutMessage) { 773bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return LLVMGetBitcodeModuleInContext(ContextRef, MemBuf, 783bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien reinterpret_cast<LLVMModuleRef*>(OutMP), 793bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien OutMessage); 803bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien} 813bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien 823bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien/* Deprecated: Use LLVMGetBitcodeModule instead. */ 833bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan ChienLLVMBool LLVMGetBitcodeModuleProvider(LLVMMemoryBufferRef MemBuf, 843bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien LLVMModuleProviderRef *OutMP, 853bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien char **OutMessage) { 863bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien return LLVMGetBitcodeModuleProviderInContext(LLVMGetGlobalContext(), MemBuf, 873bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien OutMP, OutMessage); 883bdc2a8fde18e9e82a1e6ccef1c7379ef57bca35Logan Chien} 89