mirror of
https://github.com/FFmpeg/FFmpeg.git
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bad7ce1d82
This avoids having to use either "dumpbin -headers" to find out the current architecture, or pass $ARCH from configure to deduce it. When configuring with --disable-asm, ARCH is equal to "c", which doesn't give any indication of what symbol prefix is to be used. Signed-off-by: Martin Storsjö <martin@martin.st>
130 lines
3.1 KiB
Bash
Executable File
130 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (c) 2013, Derek Buitenhuis
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# mktemp isn't POSIX, so supply an implementation
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mktemp() {
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echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
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}
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if [ $# -lt 2 ]; then
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echo "Usage: makedef <version_script> <objects>" >&2
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exit 0
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fi
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vscript=$1
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shift
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if [ ! -f "$vscript" ]; then
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echo "Version script does not exist" >&2
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exit 1
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fi
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for object in "$@"; do
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if [ ! -f "$object" ]; then
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echo "Object does not exist: ${object}" >&2
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exit 1
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fi
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done
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# Create a lib temporarily to dump symbols from.
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# It's just much easier to do it this way
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libname=$(mktemp -u "library").lib
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trap 'rm -f -- $libname' EXIT
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if [ -n "$AR" ]; then
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$AR rcs ${libname} $@ >/dev/null
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else
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lib -out:${libname} $@ >/dev/null
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fi
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if [ $? != 0 ]; then
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echo "Could not create temporary library." >&2
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exit 1
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fi
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IFS='
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'
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prefix="$EXTERN_PREFIX"
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started=0
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regex="none"
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for line in $(cat ${vscript} | tr '\t' ' '); do
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# We only care about global symbols
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echo "${line}" | grep -q '^ \+global:'
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if [ $? = 0 ]; then
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started=1
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line=$(echo "${line}" | sed -e 's/^ \{1,\}global: *//')
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else
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echo "${line}" | grep -q '^ \+local:'
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if [ $? = 0 ]; then
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started=0
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fi
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fi
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if [ ${started} = 0 ]; then
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continue
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fi
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# Handle multiple symbols on one line
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IFS=';'
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# Work around stupid expansion to filenames
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line=$(echo "${line}" | sed -e 's/\*/.\\+/g')
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for exp in ${line}; do
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# Remove leading and trailing whitespace
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exp=$(echo "${exp}" | sed -e 's/^ *//' -e 's/ *$//')
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if [ "${regex}" = "none" ]; then
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regex="${exp}"
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else
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regex="${regex};${exp}"
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fi
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done
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IFS='
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'
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done
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if [ -n "$NM" ]; then
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# Use eval, since NM="nm -g"
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dump=$(eval "$NM --defined-only -g ${libname}" |
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grep -v : |
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grep -v ^$ |
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cut -d' ' -f3 |
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sed -e "s/^${prefix}//")
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else
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dump=$(dumpbin -linkermember:1 ${libname} |
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sed -e '/public symbols/,$!d' -e '/^ \{1,\}Summary/,$d' -e "s/ \{1,\}${prefix}/ /" -e 's/ \{1,\}/ /g' |
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tail -n +2 |
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cut -d' ' -f3)
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fi
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rm ${libname}
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IFS=';'
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list=""
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for exp in ${regex}; do
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list="${list}"'
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'$(echo "${dump}" |
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grep "^${exp}" |
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sed -e 's/^/ /')
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done
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echo "EXPORTS"
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echo "${list}" | sort | uniq | tail -n +2
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