refactor(build): better handle old glibc (#16238)

Follow-up to #16208.

- Refactors build.rs behaviour to use `-exported_symbols_list` /
`--export-dynamic-symbol-list`
- Since all build systems now rely on a symbols list file, I have added
`generate_exported_symbols_list`, which derives the symbol list file
depending on the platform, which makes `tools/napi/generate_link_win.js`
redundant.
- Fixes a missed instance of `i8` being used instead of `c_char`

Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/tools/napi/generate_symbols_lists.js b/tools/napi/generate_symbols_lists.js
new file mode 100755
index 000000000..3e41c3f06
--- /dev/null
+++ b/tools/napi/generate_symbols_lists.js
@@ -0,0 +1,20 @@
+#!/usr/bin/env -S deno run --unstable --allow-read --allow-write
+// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+
+import exports from "../../cli/napi_sym/symbol_exports.json" assert {
+  type: "json",
+};
+
+for await (const os of ["linux", "macos", "windows"]) {
+  let def = os === "windows" ? "LIBRARY\nEXPORTS\n" : "";
+  const prefix = os === "windows" ? "  " : os === "macos" ? "_" : "";
+  for (const symbol of exports.symbols) {
+    def += `${prefix}${symbol}\n`;
+  }
+
+  const defUrl = new URL(
+    `../../cli/generated_symbol_exports_list_${os}.def`,
+    import.meta.url,
+  );
+  await Deno.writeTextFile(defUrl.pathname, def, { create: true });
+}