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1c20e684f3
check-symbols.sh fails the build if undefined __cx_guard_* symbols are found in LibC. This will help us catch port breakage sooner.
22 lines
934 B
Bash
Executable file
22 lines
934 B
Bash
Executable file
#!/bin/sh
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script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
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cd "$script_path/.."
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# The __cxa_guard_* calls are generated for (non trivial) initialzation of local static objects.
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# These symbols are OK to use within serenity code, but they are problematic in LibC because their
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# existence breaks ports (the implementation of these symbols resides in libstdc++.a which we do not link against in ports).
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# To eliminate the need for these symbols, avoid doing non-trivial construction of local statics in LibC.
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FORBIDDEN_SYMBOLS="__cxa_guard_acquire __cxa_guard_release"
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LIBC_PATH="Build/Libraries/LibC/libc.a"
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for forbidden_symbol in $FORBIDDEN_SYMBOLS; do
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# check if symbol is undefined
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nm $LIBC_PATH | grep "U $forbidden_symbol"
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if [ $? -eq 0 ]; then
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echo "Forbidden undefined symbol in LibC: $forbidden_symbol"
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echo "See comment in Meta/check-symbols.sh for more info"
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exit 1
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fi
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done
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