xref: /freebsd/contrib/llvm-project/llvm/lib/BinaryFormat/Wasm.cpp (revision 19fae0f66023a97a9b464b3beeeabb2081f575b3)
1 //===-- llvm/BinaryFormat/Wasm.cpp -------------------------------*- C++-*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "llvm/BinaryFormat/Wasm.h"
10 
11 llvm::StringRef llvm::wasm::toString(wasm::WasmSymbolType Type) {
12   switch (Type) {
13   case wasm::WASM_SYMBOL_TYPE_FUNCTION:
14     return "WASM_SYMBOL_TYPE_FUNCTION";
15   case wasm::WASM_SYMBOL_TYPE_GLOBAL:
16     return "WASM_SYMBOL_TYPE_GLOBAL";
17   case wasm::WASM_SYMBOL_TYPE_TABLE:
18     return "WASM_SYMBOL_TYPE_TABLE";
19   case wasm::WASM_SYMBOL_TYPE_DATA:
20     return "WASM_SYMBOL_TYPE_DATA";
21   case wasm::WASM_SYMBOL_TYPE_SECTION:
22     return "WASM_SYMBOL_TYPE_SECTION";
23   case wasm::WASM_SYMBOL_TYPE_TAG:
24     return "WASM_SYMBOL_TYPE_TAG";
25   }
26   llvm_unreachable("unknown symbol type");
27 }
28 
29 llvm::StringRef llvm::wasm::relocTypetoString(uint32_t Type) {
30   switch (Type) {
31 #define WASM_RELOC(NAME, VALUE)                                                \
32   case VALUE:                                                                  \
33     return #NAME;
34 #include "llvm/BinaryFormat/WasmRelocs.def"
35 #undef WASM_RELOC
36   default:
37     llvm_unreachable("unknown reloc type");
38   }
39 }
40 
41 llvm::StringRef llvm::wasm::sectionTypeToString(uint32_t Type) {
42 #define ECase(X)                                                               \
43   case wasm::WASM_SEC_##X:                                                     \
44     return #X;
45   switch (Type) {
46     ECase(CUSTOM);
47     ECase(TYPE);
48     ECase(IMPORT);
49     ECase(FUNCTION);
50     ECase(TABLE);
51     ECase(MEMORY);
52     ECase(GLOBAL);
53     ECase(EXPORT);
54     ECase(START);
55     ECase(ELEM);
56     ECase(CODE);
57     ECase(DATA);
58     ECase(DATACOUNT);
59     ECase(TAG);
60   default:
61     llvm_unreachable("unknown section type");
62   }
63 #undef ECase
64 }
65 
66 bool llvm::wasm::relocTypeHasAddend(uint32_t Type) {
67   switch (Type) {
68   case R_WASM_MEMORY_ADDR_LEB:
69   case R_WASM_MEMORY_ADDR_LEB64:
70   case R_WASM_MEMORY_ADDR_SLEB:
71   case R_WASM_MEMORY_ADDR_SLEB64:
72   case R_WASM_MEMORY_ADDR_REL_SLEB:
73   case R_WASM_MEMORY_ADDR_REL_SLEB64:
74   case R_WASM_MEMORY_ADDR_I32:
75   case R_WASM_MEMORY_ADDR_I64:
76   case R_WASM_MEMORY_ADDR_TLS_SLEB:
77   case R_WASM_MEMORY_ADDR_TLS_SLEB64:
78   case R_WASM_FUNCTION_OFFSET_I32:
79   case R_WASM_FUNCTION_OFFSET_I64:
80   case R_WASM_SECTION_OFFSET_I32:
81   case R_WASM_MEMORY_ADDR_LOCREL_I32:
82     return true;
83   default:
84     return false;
85   }
86 }
87