1 //===-- Target.cpp --------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the common infrastructure (including C bindings) for
11 // libLLVMTarget.a, which implements target information.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "llvm-c/Target.h"
16 #include "llvm-c/Initialization.h"
17 #include "llvm/InitializePasses.h"
18 #include "llvm/PassManager.h"
19 #include "llvm/Target/TargetData.h"
20 #include "llvm/LLVMContext.h"
21 #include <cstring>
22 
23 using namespace llvm;
24 
25 void llvm::initializeTarget(PassRegistry &Registry) {
26   initializeTargetDataPass(Registry);
27 }
28 
29 void LLVMInitializeTarget(LLVMPassRegistryRef R) {
30   initializeTarget(*unwrap(R));
31 }
32 
33 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
34   return wrap(new TargetData(StringRep));
35 }
36 
37 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
38   unwrap(PM)->add(new TargetData(*unwrap(TD)));
39 }
40 
41 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
42   std::string StringRep = unwrap(TD)->getStringRepresentation();
43   return strdup(StringRep.c_str());
44 }
45 
46 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
47   return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
48 }
49 
50 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
51   return unwrap(TD)->getPointerSize();
52 }
53 
54 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
55   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
56 }
57 
58 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
59   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
60 }
61 
62 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
63   return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
64 }
65 
66 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
67   return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
68 }
69 
70 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
71   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
72 }
73 
74 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
75   return unwrap(TD)->getCallFrameTypeAlignment(unwrap(Ty));
76 }
77 
78 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
79   return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
80 }
81 
82 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
83                                         LLVMValueRef GlobalVar) {
84   return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
85 }
86 
87 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
88                              unsigned long long Offset) {
89   const StructType *STy = unwrap<StructType>(StructTy);
90   return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
91 }
92 
93 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
94                                        unsigned Element) {
95   const StructType *STy = unwrap<StructType>(StructTy);
96   return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
97 }
98 
99 void LLVMInvalidateStructLayout(LLVMTargetDataRef TD, LLVMTypeRef StructTy) {
100   unwrap(TD)->InvalidateStructLayoutInfo(unwrap<StructType>(StructTy));
101 }
102 
103 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
104   delete unwrap(TD);
105 }
106