| author |  Luuk de Gram <luuk@degram.dev> 2023-11-06 17:09:42+01:00 |
| committer | Luuk de Gram <luuk@degram.dev> 2023-11-28 15:47:03+01:00 |
| log | f3626eb81662fb7519d09e14bed6e4d958c73e43 |
| tree | 8861fdc224683e84ac02d3d0d1385d46142ccecd |
| parent | 2a322645331532e22def160677a345854f00b7e2 |
| signature |  Commit is signed but in an unrecognized format. |
wasm-link: ensure TLS global when resolved
When a linked object contains references to the __tls_base symbol,
we lazily create this symbol. However, we wouldn't create the corresponding
Wasm global. This meant its address wasn't set correctly as well as fail
to output it into the `Names` section.1 files changed, 8 insertions(+), 0 deletions(-)
src- link
src/link/Wasm.zig+8
| ... | ... | @@ -1242,6 +1242,14 @@ fn resolveLazySymbols(wasm: *Wasm) !void { |
| 1242 | 1242 | if (wasm.undefs.fetchSwapRemove(name_offset)) |kv| { |
| 1243 | 1243 | const loc = try wasm.createSyntheticSymbolOffset(name_offset, .global); |
| 1244 | 1244 | try wasm.discarded.putNoClobber(wasm.base.allocator, kv.value, loc); |
| 1245 | _ = wasm.resolved_symbols.swapRemove(kv.value); | |
| 1246 | const symbol = loc.getSymbol(wasm); | |
| 1247 | symbol.setFlag(.WASM_SYM_VISIBILITY_HIDDEN); | |
| 1248 | symbol.index = @intCast(wasm.imported_globals_count + wasm.wasm_globals.items.len); | |
| 1249 | try wasm.wasm_globals.append(wasm.base.allocator, .{ | |
| 1250 | .global_type = .{ .valtype = .i32, .mutable = true }, | |
| 1251 | .init = .{ .i32_const = undefined }, | |
| 1252 | }); | |
| 1245 | 1253 | } |
| 1246 | 1254 | } |
| 1247 | 1255 | } |