[WebAssembly] Define an initial set of relocation types for Wasm.

This set will likely evolve, along with the Wasm linking ABI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296177 91177308-0d34-0410-b5e6-96231b3b80d8
nedm2 · Feb 24, 2017 · 43d5d8c · 43d5d8c
1 parent e3a136c
commit 43d5d8c
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diff --git a/include/llvm/Support/Wasm.h b/include/llvm/Support/Wasm.h
@@ -81,6 +81,12 @@ enum : unsigned {
   WASM_OPCODE_F64_CONST  = 0x44,
 };
 
+#define WASM_RELOC(name, value) name = value,
+
+enum : unsigned {
+#include "WasmRelocs/WebAssembly.def"
+};
+
 } // end namespace wasm
 } // end namespace llvm
 

diff --git a/include/llvm/Support/WasmRelocs/WebAssembly.def b/include/llvm/Support/WasmRelocs/WebAssembly.def
@@ -0,0 +1,11 @@
+
+#ifndef WASM_RELOC
+#error "WASM_RELOC must be defined"
+#endif
+
+WASM_RELOC(R_WEBASSEMBLY_FUNCTION_INDEX_LEB,   0)
+WASM_RELOC(R_WEBASSEMBLY_TABLE_INDEX_SLEB,     1)
+WASM_RELOC(R_WEBASSEMBLY_TABLE_INDEX_I32,      2)
+WASM_RELOC(R_WEBASSEMBLY_GLOBAL_ADDR_LEB,      3)
+WASM_RELOC(R_WEBASSEMBLY_GLOBAL_ADDR_SLEB,     4)
+WASM_RELOC(R_WEBASSEMBLY_GLOBAL_ADDR_I32,      5)