derek.holloway
7502bf64a4
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50 lines
1.2 KiB
Bash
Executable File
50 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2020-2024 Yury Gribov
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#
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# The MIT License (MIT)
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#
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# Use of this source code is governed by MIT license that can be
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# found in the LICENSE.txt file.
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# This is an example for https://stackoverflow.com/questions/64489128/automated-function-redirection-via-library-wrappers-in-c/64495628#64495628
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# It generates a single libC.so which redirects calls to libA.so and libB.so
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set -eu
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cd $(dirname $0)
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if test -n "${1:-}"; then
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ARCH="$1"
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fi
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. ../common.sh
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export LD_LIBRARY_PATH=.:${LD_LIBRARY_PATH:-}
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LIB_CFLAGS='-shared -fPIC -fvisibility=hidden'
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# Compile wrapped libs
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$CC $CFLAGS $LIB_CFLAGS a.c -o libA.so
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$CC $CFLAGS $LIB_CFLAGS b.c -o libB.so
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# Generate and compile wrapper
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${PYTHON:-} ../../implib-gen.py -q --target $TARGET --symbol-list libA_syms.txt libA.so
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${PYTHON:-} ../../implib-gen.py -q --target $TARGET --symbol-list libB_syms.txt libB.so
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$CC $CFLAGS $LIB_CFLAGS -DIMPLIB_EXPORT_SHIMS libA.so.* libB.so.* -o libC.so
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# Use it in final app
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$CC $CFLAGS main.c -L. -lC $LIBS
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$INTERP ./a.out >out.log 2>&1
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if ! diff out.ref out.log; then
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echo 'Creating unified wrapper for several libraries does not work'
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exit 1
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fi
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echo SUCCESS
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