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fix: setjmp/longjmp and stack overflow handling for WASM build

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Rawan10101
2026-06-10 14:09:16 +03:00
committed by rawan10101
parent ab4e9683f5
commit 9497a30cc6
1 changed files with 19 additions and 4 deletions
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23
build.zig
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@@ -570,6 +570,7 @@ pub fn build(b: *std.Build) !void {
if (is_windows) "-DWIN32_LEAN_AND_MEAN" else "",
if (is_windows) "-DUTF8PROC_STATIC" else "",
if (use_unibilium) "-DHAVE_UNIBILIUM" else "",
if (is_wasm) "-flto" else "",
};
nvim_mod.addCSourceFiles(.{ .files = src_paths, .flags = &flags });
@@ -610,14 +611,28 @@ pub fn build(b: *std.Build) !void {
emcc.addArgs(&.{
b.fmt("--sysroot={s}", .{s}),
"-sALLOW_MEMORY_GROWTH=1",
"-sEXPORT_ALL=1",
"-sINITIAL_MEMORY=67108864",
"--profiling-funcs",
"-sEXPORTED_FUNCTIONS=_main,_malloc,_free",
"-sEXPORTED_RUNTIME_METHODS=stringToUTF8,lengthBytesUTF8,setValue,getValue,UTF8ToString,callMain,ENV,FS",
"-sSTACK_SIZE=134217728", // 64MB — emscripten's own flag, overrides its 65536
"-sINITIAL_MEMORY=536870912", // 256MB — stack(64MB) + data(12MB) + heap room
"-sMAXIMUM_MEMORY=2147483648",
"-sFORCE_FILESYSTEM=1",
"-sNODERAWFS=0",
"-sERROR_ON_UNDEFINED_SYMBOLS=0",
"-sEXIT_RUNTIME=0",
"-sINVOKE_RUN=0",
"-sGLOBAL_BASE=134217728",
"-sMODULARIZE=1",
"-sEXPORT_NAME=createNvim",
"-Wl,--unresolved-symbols=ignore-all",
"--no-entry",
"-Wl,--export-all",
"-Wl,--no-gc-sections",
"-fexceptions",
"-flto",
"-sSTACK_OVERFLOW_CHECK=2",
"-sASSERTIONS=1",
});
emcc.addArg("-o");
const nvim_js = emcc.addOutputFileArg("nvim.js");
nvim_exe_step.dependOn(&b.addInstallFileWithDir(nvim_js, .bin, "nvim.js").step);