[llvm] r357715 - [WebAssembly] Apply data relocations at runtime in shared objects

[Sam Clegg via llvm-commits]

Author: sbc
Date: Thu Apr  4 11:40:51 2019
New Revision: 357715

URL: http://llvm.org/viewvc/llvm-project?rev=357715&view=rev
Log:
[WebAssembly] Apply data relocations at runtime in shared objects

See: https://github.com/WebAssembly/tool-conventions/blob/master/DynamicLinking.md

Data section relocations in wasm shared libraries are applied by the
library itself at static constructor time.  This change adds a new
synthetic function that applies relocations to relevant memory locations
on startup.

Differential Revision: https://reviews.llvm.org/D59278

Modified:
    llvm/trunk/include/llvm/BinaryFormat/Wasm.h

Modified: llvm/trunk/include/llvm/BinaryFormat/Wasm.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/BinaryFormat/Wasm.h?rev=357715&r1=357714&r2=357715&view=diff
==============================================================================
--- llvm/trunk/include/llvm/BinaryFormat/Wasm.h (original)
+++ llvm/trunk/include/llvm/BinaryFormat/Wasm.h Thu Apr  4 11:40:51 2019
@@ -241,11 +241,14 @@ enum : unsigned {
 // Opcodes used in initializer expressions.
 enum : unsigned {
   WASM_OPCODE_END = 0x0b,
+  WASM_OPCODE_CALL = 0x10,
   WASM_OPCODE_GLOBAL_GET = 0x23,
+  WASM_OPCODE_I32_STORE = 0x36,
   WASM_OPCODE_I32_CONST = 0x41,
   WASM_OPCODE_I64_CONST = 0x42,
   WASM_OPCODE_F32_CONST = 0x43,
   WASM_OPCODE_F64_CONST = 0x44,
+  WASM_OPCODE_I32_ADD = 0x6a,
 };
 
 enum : unsigned {