47 lines
1.3 KiB
Bash
Executable File
47 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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if [ $# -lt 2 ]
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then
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echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]"
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echo
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echo "Prepares kernel header files for use by user space, by removing"
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echo "all compiler.h definitions and #includes, removing any"
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echo "#ifdef __KERNEL__ sections, and putting __underscores__ around"
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echo "asm/inline/volatile keywords."
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echo
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echo "OUTDIR: directory to write each userspace header FILE to."
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echo "SRCDIR: source directory where files are picked."
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echo "FILES: list of header files to operate on."
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exit 1
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fi
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# Grab arguments
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OUTDIR="$1"
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shift
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SRCDIR="$1"
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shift
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# Iterate through files listed on command line
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FILE=
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trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT
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for i in "$@"
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do
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FILE="$(basename "$i")"
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sed -r \
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-e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \
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-e 's/__attribute_const__([ \t]|$)/\1/g' \
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-e 's@^#include <linux/compiler.h>@@' \
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-e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
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-e 's/(^|[ \t(])(inline|asm|volatile)([ \t(]|$)/\1__\2__\3/g' \
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-e 's@#(ifndef|define|endif[ \t]*/[*])[ \t]*_UAPI@#\1 @' \
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"$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1
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scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \
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> "$OUTDIR/$FILE"
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[ $? -gt 1 ] && exit 1
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rm -f "$OUTDIR/$FILE.sed"
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done
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trap - EXIT
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