llvm/lib/BinaryFormat/Wasm.cpp

   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 }