fixup! doc,test: add documentation and test on how to use addons in SEA

Author: joyeecheung

doc/api/single-executable-applications.md

@@ -508,6 +508,11 @@ console.log(myaddon.exports);
 fs.rmSync(addonPath);
 ```
 
+Known caveat: if the single-executable application is produced by postject running on a Linux arm64 docker container,
+[the produced ELF binary does not have the correct hash table to load the addons][postject-linux-arm64-issue] and
+will crash on `process.dlopen()`. Build the single-executable application on other platforms, or at least on
+a non-container Linux arm64 environment to work around this issue.
+
 ## Notes
 
 ### Single executable application creation process
@@ -560,6 +565,7 @@ to help us document them.
 [documentation about startup snapshot support in Node.js]: cli.md#--build-snapshot
 [fuse]: https://www.electronjs.org/docs/latest/tutorial/fuses
 [postject]: https://github.com/nodejs/postject
+[postject-linux-arm64-issue]: https://github.com/nodejs/postject/issues/105
 [signtool]: https://learn.microsoft.com/en-us/windows/win32/seccrypto/signtool
 [single executable applications]: https://github.com/nodejs/single-executable
 [supported by Node.js]: https://github.com/nodejs/node/blob/main/BUILDING.md#platform-list

test/node-api/node-api.status

@@ -16,3 +16,7 @@ test_fatal/test_threads_report: PASS,FLAKY
 [$system==linux && $arch==ppc64]
 # https://github.com/nodejs/node/issues/59561
 test_sea_addon/test: SKIP
+
+[$system==linux && $arch==arm]
+# https://github.com/nodejs/postject/issues/105
+test_sea_addon/test: SKIP

test/node-api/sea_addon

@@ -29,7 +29,7 @@ const sea = require('node:sea');
 const fs = require('fs');
 const path = require('path');
 
-const addonPath = path.join(process.cwd(), 'hello.node');
+const addonPath = path.join(${JSON.stringify(tmpdir.path)}, 'hello.node');
 fs.writeFileSync(addonPath, new Uint8Array(sea.getRawAsset('hello.node')));
 const mod = {exports: {}}
 process.dlopen(mod, addonPath);