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 C bindings for libLLVMTarget.a, which implements
11 // target information.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "llvm-c/Target.h"
16 #include "llvm/PassManager.h"
17 #include "llvm/Target/TargetData.h"
18 #include "llvm/LLVMContext.h"
19 #include <cstring>
20 
21 using namespace llvm;
22 
23 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
24   return wrap(new TargetData(StringRep));
25 }
26 
27 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
28   unwrap(PM)->add(new TargetData(*unwrap(TD)));
29 }
30 
31 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
32   std::string StringRep = unwrap(TD)->getStringRepresentation();
33   return strdup(StringRep.c_str());
34 }
35 
36 LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
37   return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
38 }
39 
40 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
41   return unwrap(TD)->getPointerSize();
42 }
43 
44 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
45   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
46 }
47 
48 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
49   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
50 }
51 
52 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
53   return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
54 }
55 
56 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
57   return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
58 }
59 
60 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
61   return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
62 }
63 
64 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
65   return unwrap(TD)->getCallFrameTypeAlignment(unwrap(Ty));
66 }
67 
68 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
69   return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
70 }
71 
72 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
73                                         LLVMValueRef GlobalVar) {
74   return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
75 }
76 
77 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
78                              unsigned long long Offset) {
79   const StructType *STy = unwrap<StructType>(StructTy);
80   return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
81 }
82 
83 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
84                                        unsigned Element) {
85   const StructType *STy = unwrap<StructType>(StructTy);
86   return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
87 }
88 
89 void LLVMInvalidateStructLayout(LLVMTargetDataRef TD, LLVMTypeRef StructTy) {
90   unwrap(TD)->InvalidateStructLayoutInfo(unwrap<StructType>(StructTy));
91 }
92 
93 void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
94   delete unwrap(TD);
95 }
96