mirror of
https://github.com/Gator96100/ProxSpace.git
synced 2025-07-16 02:03:02 -07:00
203 lines
6.8 KiB
Bash
203 lines
6.8 KiB
Bash
#!/usr/bin/bash
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#
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# strip.sh - Strip debugging symbols from binary files
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#
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# Copyright (c) 2007-2018 Pacman Development Team <pacman-dev@archlinux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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[[ -n "$LIBMAKEPKG_TIDY_STRIP_SH" ]] && return
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LIBMAKEPKG_TIDY_STRIP_SH=1
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LIBRARY=${LIBRARY:-'/usr/share/makepkg'}
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source "$LIBRARY/util/message.sh"
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source "$LIBRARY/util/option.sh"
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packaging_options+=('strip' 'debug')
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tidy_modify+=('tidy_strip')
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source_files() {
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LANG=C readelf "$1" --debug-dump | \
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awk '/DW_AT_name +:/{name=$8}/DW_AT_comp_dir +:/{{if (name !~ /^\//) {printf "%s/", $8}}{print name}}'
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}
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strip_file() {
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local binary=$1; shift
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case "$(file -bi "$binary")" in
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*application/x-dosexec*)
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if check_option "debug" "y"; then
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if [[ -f "$dbgdir/$binary.debug" ]]; then
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return
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fi
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# copy source files to debug directory
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local f t
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while read -r t; do
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f=${t/${dbgsrcdir}/"$srcdir"}
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mkdir -p "${dbgsrc/"$dbgsrcdir"/}${t%/*}"
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cp -- "$f" "${dbgsrc/"$dbgsrcdir"/}$t"
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done < <(source_files "$binary")
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# copy debug symbols to debug directory
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mkdir -p "$dbgdir/${binary%/*}"
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msg2 "Separating debug info from $binary into $dbgdir/$binary.debug"
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# create a dbg file with proper debug info:
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objcopy --only-keep-debug "$binary" "$dbgdir/$binary.debug"
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msg2 "Creating a debuginfo link to $dbgdir/$binary.debug in $binary"
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objcopy --add-gnu-debuglink="$dbgdir/${binary#/}.debug" "$binary"
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msg2 "Separating (again) debug info from $binary into $dbgdir/$binary.debug"
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objcopy --only-keep-debug "$binary" "$dbgdir/$binary.debug"
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msg2 "Removing old .gnu_debuglink section from $binary"
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objcopy --remove-section=.gnu_debuglink "$binary"
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# strip debug-info from the original file
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objcopy --strip-debug "$binary"
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msg2 "Creating (again) a debuginfo link to $dbgdir/$binary.debug in $binary"
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objcopy --add-gnu-debuglink="$dbgdir/${binary#/}.debug" "$binary"
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# This way dbg file gets a .gnu_debuglink section (doesn't matter where
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# it's pointing), and its contents pass the CRC32 check
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# create any needed hardlinks
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while read -rd '' file ; do
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if [[ "${binary}" -ef "${file}" && ! -f "$dbgdir/${file}.debug" ]]; then
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mkdir -p "$dbgdir/${file%/*}"
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ln "$dbgdir/${binary}.debug" "$dbgdir/${file}.debug"
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fi
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done < <(find . -type f -perm -u+w -print0 2>/dev/null)
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fi
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;;
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esac
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strip $@ "$binary"
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}
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tidy_strip() {
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if check_option "strip" "y"; then
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msg2 "$(gettext "Stripping unneeded symbols from binaries and libraries...")"
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# make sure library stripping variables are defined to prevent excess stripping
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[[ -z ${STRIP_SHARED+x} ]] && STRIP_SHARED="-S"
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[[ -z ${STRIP_STATIC+x} ]] && STRIP_STATIC="-S"
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if check_option "debug" "y"; then
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dbgdir="$pkgdirbase/$pkgbase-debug"
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dbgsrcdir="${DBGSRCDIR:-/usr/src/debug}"
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dbgsrc="$pkgdirbase/$pkgbase-debug$dbgsrcdir"
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mkdir -p "$dbgdir" "$dbgsrc"
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fi
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local binary strip_flags
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# *.so: Apache2 modules, OCaml stublibs, Ruby modules
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# *.oct: Octave modules
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# *.cmxs: OCaml natdynlink modules: http://gallium.inria.fr/~frisch/ndl.txt
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find * -type f ! -name '*.dll.a' ! -name '*.lib' \
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-a \( -name '*.a' -o -name '*.dll' -o -name '*.exe' -o -name '*.so' -o -name '*.so.*' -o -name '*.oct' -o -name '*.cmxs' \) -print0 \
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-o -type f -executable ! -name '*.dll' ! -name '*.exe' ! -name '*.so' ! -name '*.so.[0-9]*' ! -name '*.oct' ! -name '*.cmxs' ! -name '*.a' ! -name '*.la' ! -name '*.lib' ! -name '*.exe.manifest' ! -name '*.exe.config' ! -name '*.dll.config' ! -name '*.mdb' ! -name '*-config' ! -name '*.csh' ! -name '*.sh' ! -name '*.pl' ! -name '*.pm' ! -name '*.py' ! -name '*.rb' ! -name '*.tcl' -print0 | \
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while read -d $'\0' binary
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do
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# Skip thin archives from stripping
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case "${binary##*/}" in
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*.a)
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if [ "$(head -c 7 "${binary}")" = '!<thin>' ]
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then
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continue
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fi
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;;
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esac
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# assure this is actually a binary object
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if [ "$(head -c 2 "${binary}")" = '#!' ]
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then
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# sometimes .exe will be appended where it does not belong
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case "${exe}" in
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usr/lib/hevea/*.exe) ;;
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*.exe) mv "${binary}" "${binary%.exe}" ;;
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esac
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continue
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fi
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# OCaml bytecode must not be stripped
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# Magic number is at end of file:
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# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=256900#74
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# http://cygwin.com/ml/cygwin-apps/2010-10/msg00057.html
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#
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# Perl Archive (PAR) binaries must not be stripped
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# https://rt.cpan.org/Public/Bug/Display.html?id=18536
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# http://cygwin.com/ml/cygwin-apps/2012-07/msg00088.html
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case $(tail -c 12 "${binary}" | tr '\012\0' '%') in
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%PAR\.pm%) continue ;;
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Caml1999X0[0-9][0-9]) continue ;;
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esac
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# Mono assemblies must not be stripped, but remove .mdb debug symbols,
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# and make them non-executable so they're not launched by MS .NET
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if LC_ALL=C file -b "${binary}" 2>&1 | grep -q "Mono/\.Net assembly"
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then
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chmod 0644 "${binary}"
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rm -f "${binary}.mdb"
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continue
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fi
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# check for .exe from non-automake Makefile which install(1) didn't fix
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# strip(1) used to take care of this, but not anymore
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case ${CHOST} in
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*-*-cygwin*|*-*-mingw*|*-*-msys*)
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case "${binary##*/}" in
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*.dll|*.exe|*.sfx|*.so|*.so.[0-9]*|*.oct|*.cmxs) ;;
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# make sure this isn't some oddly named DLL
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*) if LANG=en_US.UTF-8 LC_ALL=C objdump -f "${binary}" | grep -Eq '^start address 0x(0000000[01])?00401[0-9a-e][0-9a-e]0'
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then
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mv "${binary}" "${binary}.exe"
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binary+=.exe
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fi ;;
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esac
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;;
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esac
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chmod 0755 "${binary}";
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case "$(file -bi "$binary")" in
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*application/x-dosexec*) # Windows executables and dlls
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strip_flags="$STRIP_SHARED";;
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*application/x-sharedlib*) # Libraries (.so)
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strip_flags="$STRIP_SHARED";;
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*application/x-archive*) # Libraries (.a)
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strip_flags="$STRIP_STATIC";;
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*application/x-object*)
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case "$binary" in
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*.ko) # Kernel module
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strip_flags="$STRIP_SHARED";;
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*)
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continue;;
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esac;;
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*application/x-executable*) # Binaries
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strip_flags="$STRIP_BINARIES";;
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*application/x-pie-executable*) # Relocatable binaries
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strip_flags="$STRIP_SHARED";;
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*)
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continue ;;
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esac
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strip_file "$binary" ${strip_flags}
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done
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fi
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}
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