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Fix unresolved symbol in standalone debug build. #24680

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Merged
merged 2 commits into from
Jul 14, 2025
Merged

Fix unresolved symbol in standalone debug build. #24680

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e665bb4
Fix unresolved symbol in standalone debug build.
vchigrin Jul 10, 2025
38c31db
Add test for standalone binary imports.
vchigrin Jul 11, 2025
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5 changes: 5 additions & 0 deletions system/lib/standalone/standalone.c
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@

#include "lock.h"
#include "emscripten_internal.h"
#include "unwind.h"

/*
* WASI support code. These are compiled with the program, and call out
Expand Down Expand Up @@ -308,3 +309,7 @@ weak void _emscripten_get_progname(char* buf, int length) {
}

weak void _emscripten_runtime_keepalive_clear() {}

void __throw_exception_with_stack_trace(_Unwind_Exception* exception_object) {
_Unwind_RaiseException(exception_object);
}
9 changes: 9 additions & 0 deletions test/test_other.py
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Expand Up @@ -15182,6 +15182,15 @@ def test_standalone_settings(self):
err = self.expect_fail(base_cmd + ['-sMEMORY_GROWTH_LINEAR_STEP=1mb'])
self.assertContained('error: MEMORY_GROWTH_LINEAR_STEP is not compatible with STANDALONE_WASM', err)

def test_standalone_imports(self):
# Ensure standalone binary will not have __throw_exception_with_stack_trace
# debug helper dependency, caused by exception-related code.
src_path = test_file('core/test_exceptions.cpp')
self.run_process([EMXX, '-O0', '-fwasm-exceptions', '-sSTANDALONE_WASM', src_path])
imports = self.parse_wasm('a.out.wasm')[0]
for name in imports:
self.assertTrue(name.startswith('wasi_'), 'Unexpected import %s' % name)

@is_slow_test
def test_googletest(self):
# TODO(sbc): Should we package gtest as an emscripten "port"? I guess we should if
Expand Down