mirror of
https://github.com/VectorCamp/vectorscan.git
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29 lines
902 B
Bash
Executable File
29 lines
902 B
Bash
Executable File
#!/bin/sh -e
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# This is used for renaming symbols for the fat runtime, don't call directly
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# TODO: make this a lot less fragile!
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cleanup () {
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rm -f ${SYMSFILE} ${KEEPSYMS}
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}
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PREFIX=$1
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KEEPSYMS_IN=$2
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shift 2
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# $@ contains the actual build command
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OUT=$(echo "$@" | sed 's/.* -o \(.*\.o\).*/\1/')
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trap cleanup INT QUIT EXIT
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SYMSFILE=$(mktemp -p /tmp ${PREFIX}_rename.syms.XXXXX)
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KEEPSYMS=$(mktemp -p /tmp keep.syms.XXXXX)
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# find the libc used by gcc
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LIBC_SO=$("$@" --print-file-name=libc.so.6)
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cp ${KEEPSYMS_IN} ${KEEPSYMS}
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# get all symbols from libc and turn them into patterns
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nm -f p -g -D ${LIBC_SO} | sed -s 's/\([^ ]*\).*/^\1$/' >> ${KEEPSYMS}
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# build the object
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"$@"
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# rename the symbols in the object
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nm -f p -g ${OUT} | cut -f1 -d' ' | grep -v -f ${KEEPSYMS} | sed -e "s/\(.*\)/\1\ ${PREFIX}_\1/" >> ${SYMSFILE}
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if test -s ${SYMSFILE}
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then
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objcopy --redefine-syms=${SYMSFILE} ${OUT}
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fi
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