================
@@ -1200,6 +1225,36 @@ void Writer::createSyntheticInitFunctions() {
}
}
+void Writer::createMemoryGrowFunction() {
+ LLVM_DEBUG(dbgs() << "createMemoryGrowFunction\n");
+ assert(ctx.sym.memoryGrow);
+ std::string bodyContent;
+ {
+ raw_string_ostream os(bodyContent);
+ writeUleb128(os, 0, "num locals");
+ writeU8(os, WASM_OPCODE_LOCAL_GET, "local.get");
+ writeUleb128(os, 0, "local 0");
+ writeU8(os, WASM_OPCODE_MEMORY_GROW, "memory grow");
+ writeUleb128(os, 0, "reserved memory byte");
+ writeU8(os, WASM_OPCODE_END, "END");
+ }
+ createFunction(ctx.sym.memoryGrow, bodyContent);
+}
+
+void Writer::createMemorySizeFunction() {
+ LLVM_DEBUG(dbgs() << "createMemorySizeFunction\n");
+ assert(ctx.sym.memorySize);
+ std::string bodyContent;
+ {
+ raw_string_ostream os(bodyContent);
+ writeUleb128(os, 0, "num locals");
+ writeU8(os, WASM_OPCODE_MEMORY_SIZE, "memory size");
+ writeUleb128(os, 0, "reserved memory byte");
+ writeU8(os, WASM_OPCODE_END, "END");
+ }
+ createFunction(ctx.sym.memorySize, bodyContent);
----------------
sbc100 wrote:
I would hope you could include these functions in some kind of compiler-rt /
libc that could be included when needed. I'm not sure the linker needed to
create these, unless I'm missing something.
https://github.com/llvm/llvm-project/pull/156087
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