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| -rwxr-xr-x | bin/check-opcodes | 86 |
diff --git a/bin/check-opcodes b/bin/check-opcodes index bd96cc6..b8ad89c 100755 --- a/bin/check-opcodes +++ b/bin/check-opcodes @@ -2,32 +2,42 @@ # shellcheck disable=SC2086 -# shellcheck source=conf/default.conf +# shellcheck source=../conf/default.conf . "${0%/*}/../conf/default.conf" usage( ) { >&2 cat <<EOF -check_opcodes: [ -a <arch> ] <package> +check_opcodes: [options] [ -a <arch> ] <package> possible optons: -h|--help: Show this help page - -v|--verbose: Verbose output -a|--architecture: architecture family to check against, one of - i486, i686, pentium4 + i486, i686, pentium3 (meaning target architecture + the package should be runnable on) + -v|--verbose: Verbose output, print result of check for logs + -d|--debug: Debug output, used for development and testing EOF exit 1 } VERBOSE=0 +DEBUG=0 EXIT_CODE=0 -log( ) { + +verbose( ) { if test $VERBOSE = 1; then echo "$@" fi } +debug( ) { + if test $DEBUG = 1; then + echo "$@" + fi +} + err( ) { echo "ERROR: $*" EXIT_CODE=1 @@ -38,7 +48,7 @@ trap 'rm -rf --one-file-system "${tmp_dir:?}"' EXIT ARCH=i686 -while getopts ":va:h-:" opt; do +while getopts ":vda:h-:" opt; do case $opt in -) case "$OPTARG" in @@ -48,6 +58,9 @@ while getopts ":va:h-:" opt; do verbose) VERBOSE=1 ;; + debug) + DEBUG=1 + ;; *) echo "ERROR: Invalid option: --$OPTARG" >&2 usage @@ -60,6 +73,9 @@ while getopts ":va:h-:" opt; do v) VERBOSE=1 ;; + d) + DEBUG=1 + ;; a) ARCH=$OPTARG ;; @@ -83,29 +99,42 @@ fi OPCODE_ARGS="" case $ARCH in i486) - OPCODE_ARGS='-r -a 486 -v' + OPCODE_ARGS='-r -a 386 -v' ;; - i686) - OPCODE_ARGS='-s MMX -s SSE -s SSE2' + i686) + OPCODE_ARGS='-s MMX -s SSE' ;; - pentium4) - OPCODE_ARGS='-s SSE3 -s SSSE3 -s AVX' + pentium3) + OPCODE_ARGS='-s SSE2 -s SSE3' ;; - *) + *) echo "ERROR: architecture must currently be one of i486 and i686" >&2 usage exit 1 esac -log "Checking for architecture: $ARCH ($OPCODE_ARGS)" +debug "Unpacking $PACKAGE to $tmp_dir.." bsdtar --no-fflags -x -C $tmp_dir -f $PACKAGE +debug "Checking for architecture: $ARCH ($OPCODE_ARGS).." + # shellcheck disable=SC2044 -for absfile in $(find $tmp_dir -regextype grep -regex '.*\.so\(\.[0-9.]\+\)\?' -type f); do - file=$(basename $absfile) - log "Checking shared library: $file" - readelf -a $absfile > $tmp_dir/$file.elf - objdump -f $absfile > $tmp_dir/$file.objdump +for absfile in $(find $tmp_dir \( -regextype grep -regex '.*\.so\(\.[0-9.]\+\)\?' -type f \) -o \( -executable -type f \) ); do + file=$(basename $absfile) + relfile=${absfile#$tmp_dir} + debug "Checking file: $relfile" + set +e + readelf -a $absfile > $tmp_dir/$file.elf 2>/dev/null + if test $? != 0; then + debug "readelf failed, ignoring file" + continue + fi + objdump -f $absfile > $tmp_dir/$file.objdump 2>/dev/null + if test $? != 0; then + debug "objdump failed, ignoring file" + continue + fi + set -e file $absfile > $tmp_dir/$file.file arch=$(grep ^architecture $tmp_dir/$file.objdump | sed 's/^architecture: //g' | cut -f 1 -d ,) @@ -120,7 +149,7 @@ for absfile in $(find $tmp_dir -regextype grep -regex '.*\.so\(\.[0-9.]\+\)\?' - arch='unknown' ;; esac - log " Objdump architecture: $arch" + debug " Objdump architecture: $arch" archelf=$(grep '^ \+Class' $tmp_dir/$file.elf | cut -f 2 -d : | tr -d ' ') case $archelf in @@ -134,14 +163,14 @@ for absfile in $(find $tmp_dir -regextype grep -regex '.*\.so\(\.[0-9.]\+\)\?' - archelf='unknown' ;; esac - log " Readelf architecture: $archelf" + debug " Readelf architecture: $archelf" if test $arch != $archelf; then - err "$file ambigous architecture information (objdump: $arch, ELF: $archelf)" + err "ERROR: $file ambigous architecture information (objdump: $arch, ELF: $archelf)" fi if test $arch = "x86_64"; then - err "$file is a 64-bit library!" + err "ERROR: $file is a 64-bit library!" continue fi @@ -150,18 +179,21 @@ for absfile in $(find $tmp_dir -regextype grep -regex '.*\.so\(\.[0-9.]\+\)\?' - if test $bad_opcodes != 0; then case $ARCH in i486) - err "$file is not built for plain i486 opcodes" + err "$relfile is not built for plain i486 opcodes" ;; i686) - err "$file contains MMX, SSE or SSE2 opcodes" + err "$relfile contains MMX, SSE or newer opcodes" ;; - pentium4) - err "$file contains SSE3 or newer opcodes" + pentium3) + err "$relfile contains SSE2 or newer opcodes" ;; esac + if test $DEBUG = 1; then + ${base_dir}/bin/opcode $OPCODE_ARGS -B 2 -A 2 < $tmp_dir/$file.asm + fi else if test $VERBOSE = 1; then - log "$file fullfills architecture constraint for $ARCH" + verbose "OK: $relfile fullfills architecture constraint for $ARCH" fi fi |