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   initializeTargetLibraryInfoPass(Registry);
28 }
29 
30 void LLVMInitializeTarget(LLVMPassRegistryRef R) {
31   initializeTarget(*unwrap(R));
32 }
33 
34 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
35   return wrap(new TargetData(StringRep));
36 }
37 
38 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
39   unwrap(PM)->add(new TargetData(*unwrap(TD)));
40 }
41 
42 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
43   std::string StringRep = unwrap(TD)->getStringRepresentation();
44   return strdup(StringRep.c_str());
45 }
46 
47 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
48   return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
49 }
50 
51 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
52   return unwrap(TD)->getPointerSize();
53 }
54 
55 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
56   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
57 }
58 
59 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
60   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
61 }
62 
63 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
64   return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
65 }
66 
67 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
68   return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
69 }
70 
71 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
72   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
73 }
74 
75 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
76   return unwrap(TD)->getCallFrameTypeAlignment(unwrap(Ty));
77 }
78 
79 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
80   return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
81 }
82 
83 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
84                                         LLVMValueRef GlobalVar) {
85   return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
86 }
87 
88 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
89                              unsigned long long Offset) {
90   const StructType *STy = unwrap<StructType>(StructTy);
91   return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
92 }
93 
94 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
95                                        unsigned Element) {
96   const StructType *STy = unwrap<StructType>(StructTy);
97   return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
98 }
99 
100 void LLVMInvalidateStructLayout(LLVMTargetDataRef TD, LLVMTypeRef StructTy) {
101   unwrap(TD)->InvalidateStructLayoutInfo(unwrap<StructType>(StructTy));
102 }
103 
104 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
105   delete unwrap(TD);
106 }
107