diff options
Diffstat (limited to 'lld/wasm/Symbols.h')
| -rw-r--r-- | lld/wasm/Symbols.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lld/wasm/Symbols.h b/lld/wasm/Symbols.h index c17b720a90fa..32e75a69c5f8 100644 --- a/lld/wasm/Symbols.h +++ b/lld/wasm/Symbols.h @@ -538,11 +538,14 @@ struct WasmSym { // Symbol marking the end of the data and bss. static DefinedData *dataEnd; - // __heap_base - // Symbol marking the end of the data, bss and explicit stack. Any linear - // memory following this address is not used by the linked code and can - // therefore be used as a backing store for brk()/malloc() implementations. + // __heap_base/__heap_end + // Symbols marking the beginning and end of the "heap". It starts at the end + // of the data, bss and explicit stack, and extends to the end of the linear + // memory allocated by wasm-ld. This region of memory is not used by the + // linked code, so it may be used as a backing store for `sbrk` or `malloc` + // implementations. static DefinedData *heapBase; + static DefinedData *heapEnd; // __wasm_init_memory_flag // Symbol whose contents are nonzero iff memory has already been initialized. |