I thought this great old thread could do with an update, so I added some of the newer CPU features found in modern CPU's
The new provided script seems to work well for Intel Chips and is interesting, but it needs some enhancement on the AMD instruction set regarding CPU ID.
Hope you find it fun to use
Updated analyse-x86;
Code: Select all
#!/bin/sh
#
# Tavis Ormandy <taviso@gentoo.org> 2003
# Improvments by Will Woods <wwoods@gentoo.org>
# More Improvements by Brett Coady <bc1968au@yahoo.com.au>
# Identify instruction set used in binary.
#
##################
# ksh massively out performs bash.
if test -x /bin/ksh -a "$BASH_VERSION"; then
exec /bin/ksh "$0" "$@"
fi
# initialize everything to zero.
eval {i486,i586,ppro,mmx,sse,sse2,sse3,ssse3,sse41,sse42,sse4a,amd,amd2,cpuid}=0
# unfortunately there are mnemonic collissions between vendor sets
# so check vendor_id string, and enable relevant sets.
printf "Checking vendor_id string..."
if ! test "${1%=*}" == "--vendor"; then
case "`grep -Em1 '^vendor_id.*: ' /proc/cpuinfo | cut -d\" \" -f2`" in
*GenuineIntel*) vendor=intel; printf "GenuineIntel\n";;
*AuthenticAMD*) vendor=amd; printf "AuthenticAMD\n";;
*CyrixInstead*) vendor=cyrix; printf "CyrixInstead\n";;
*GenuineTMx86*) vendor=transmeta; printf "GenuineTMx86\n";;
*) vendor=other; printf "other\n";;
esac
else
# allow vendor to be overridden
vendor=${1#*=}; shift
printf "%s\n" $vendor
fi
# quick sanity tests.
if ! test "$1"; then
printf "usage: %s [--vendor=intel|amd|cyrix|transmeta] /path/to/binary\n" $0 1>&2
exit 1
elif ! test -e "$1"; then
printf "error: %s does not exist.\n" "$1" 1>&2
exit 1
elif ! test -r "$1"; then
printf "error: cant read %s.\n" "$1" 1>&2
exit 1
fi
printf "Disassembling %s, please wait...\n" $1
# initialize screen output
case "$vendor" in
*intel*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u sse3: %4u ssse3: %4u sse4.1: %4u sse4.2: %4u\r" \
$i486 $i586 $ppro $mmx $sse $sse2 $sse3 $ssse3 $sse41 $sse42;;
*amd*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u 3dnow: %4u sse2: %4u sse3: %4u sse4a: %4u\r" \
$i486 $i586 $ppro $mmx $sse $(($amd+$amd2)) $sse2 $sse3 $sse4a;;
*cyrix*) printf "i486: %4u i586: %4u mmx: %4u\r" \
$i486 $i586 $mmx;;
*transmeta*) printf "i486: %4u i586: %4u mmx: %4u\r" \
$i486 $i586 $mmx;;
*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u\r" \
$i486 $i586 $ppro $mmx $sse $sse2;;
esac
# do the disassembling.
# %cr{0,2,3,4} version
# objdump -d $1 | cut -f3 |
objdump -d $1 | cut -f3 | cut -d" " -f1 | (
# %cr{0,2,3,4} version
# while read instruction operands; do
while read instruction; do
case "$instruction" in
"cmpxchg"|"xadd"|"bswap"|"invd"|"wbinvd"|"invlpg") let ++i486; print=1;;
"rdmsr"|"wrmsr"|"rdtsc"|"cmpxch8B"|"rsm") let ++i586; print=1;;
"cmovcc"|"fcmovcc"|"fcomi"|"fcomip"|"fucomi"|"fucomip"|"rdpmc"|"ud2") let ++ppro; print=1;;
"emms"|"movd"|"movq"|"packsswb"|"packssdw"|"packuswb"|"paddb"|"paddw"|"paddd"|"paddsb"|"paddsw"|"paddusb"| \
"paddusw"|"pand"|"pandn"|"pcmpeqb"|"pcmpeqw"|"pcmpeqd"|"pcmpgtb"|"pcmpgtw"|"pcmpgtd"|"pmaddwd"|"pmulhw"|"pmullw"|"por"| \
"psllw"|"pslld"|"psllq"|"psraw"|"psrad"|"psrlw"|"psrld"|"psrlq"|"psubb"|"psubw"|"psubd"|"psubsb"|"psubsw"|"psubusb"|"psubusw"| \
"punpckhbw"|"punpckhwd"|"punpckhdq"|"punpcklbw"|"punpcklwd"|"punpckldq"|"pxor") let ++mmx; print=1;;
"addps"|"addss"|"andnps"|"andps"|"cmpps"|"cmpss"|"comiss"|"cvtpi2ps"|"cvtps2pi"|"cvtsi2ss"|"cvtss2si"|"cvttps2pi"|"cvttss2si"| \
"divps"|"divss"|"fxrstor"|"fxsave"|"ldmxcsr"|"maxps"|"maxss"|"minps"|"minss"|"movaps"|"movhlps"|"movhps"|"movlhps"|"movlps"| \
"movmskps"|"movss"|"movups"|"mulps"|"mulss"|"orps"|"pavgb"|"pavgw"|"psadbw"|"rcpps"|"rcpss"|"rsqrtps"|"rsqrtss"|"shufps"| \
"sqrtps"|"sqrtss"|"stmxcsr"|"subps"|"subss"|"ucomiss"|"unpckhps"|"unpcklps"|"xorps"|"pextrw"|"pinsrw"|"pmaxsw"|"pmaxub"| \
"pminsw"|"pminub"|"pmovmskb"|"pmulhuw"|"pshufw"|"maskmovq"|"movntps"|"movntq"|"prefetch"|"sfence") let ++sse; print=1;;
"addpd"|"addsd"|"andnpd"|"andpd"|"clflush"|"cmppd"|"cmpsd"|"comisd"|"cvtdq2pd"|"cvtdq2ps"|"cvtpd2pi"|"cvtpd2pq"|"cvtpd2ps"| \
"cvtpi2pd"|"cvtps2dq"|"cvtps2pd"|"cvtsd2si"|"cvtsd2ss"|"cvtsi2sd"|"cvtss2sd"|"cvttpd2pi"|"cvttpd2dq"|"cvttps2dq"|"cvttsd2si"| \
"divpd"|"divsd"|"lfence"|"maskmovdqu"|"maxpd"|"maxsd"|"mfence"|"minpd"|"minsd"|"movapd"|"movd"|"movdq2q"|"movdqa"|"movdqu"| \
"movhpd"|"movlpd"|"movmskpd"|"movntdq"|"movnti"|"movntpd"|"movq"|"movq2dq"|"movsd"|"movupd"|"mulpd"|"mulsd"|"orpd"| \
"packsswb"|"packssdw"|"packuswb"|"paddb"|"paddw"|"paddd"|"paddq"|"paddq"|"paddsb"|"paddsw"|"paddusb"|"paddusw"|"pand"| \
"pandn"|"pause"|"pavgb"|"pavgw"|"pcmpeqb"|"pcmpeqw"|"pcmpeqd"|"pcmpgtb"|"pcmpgtw"|"pcmpgtd"|"pextrw"|"pinsrw"|"pmaddwd"| \
"pmaxsw"|"pmaxub"|"pminsw"|"pminub"|"pmovmskb"|"pmulhw"|"pmulhuw"|"pmullw"|"pmuludq"|"pmuludq"|"por"|"psadbw"|"pshufd"|" \
pshufhw"|"pshuflw"|"pslldq"|"psllw"|"pslld"|"psllq"|"psraw"|"psrad"|"psrldq"|"psrlw"|"psrld"|"psrlq"|"psubb"|"psubw"|"psubd"|"psubq"| \
"psubq"|"psubsb"|"psubsw"|"psubusb"|"psubusw"|"psubsb"|"punpckhbw"|"punpckhwd"|"punpckhdq"|"punpckhqdq"|"punpcklbw"| \
"punpcklwd"|"punpckldq"|"punpcklqdq"|"pxor"|"shufpd"|"sqrtpd"|"sqrtsd"|"subpd"|"subsd"|"ucomisd"|"unpckhpd"|"unpcklpd"|"xorpd") let ++sse2; print=1;;
"addsubpd"|"addsubps"|"haddpd"|"haddps"|"hsubpd"|"hsubps"|"lddqu"|"movddup"|"movshdup"|"movsldup"|"fisttp"|"monitor"|"mwait") let ++sse3; print=1;;
"psignb"|"psignw"|"psignd"|"pabsb"|"pabsw"|"pabsd"|"palignr"|"pshufb"|"pmulhrsw"|"pmaddubsw"|"phsubw"|"phsubd"|"phsubsw"| \
"phaddw"|"phaddd"|"phaddsw") let ++ssse3; print=1;;
"mpsadbw"|"phminposuw"|"pmuldq"|"pmulld"|"dpps"|"dppd"|"blendps"|"blendpd"|"blendvps"|"blendvpd"|"pblendvb"|"pblendw"|"pminsb"| \
"pmaxsb"|"pminuw"|"pmaxuw"|"pminud"|"pmaxud"|"pminsd"|"pmaxsd"|"roundps"|"roundss"|"roundpd"|"roundsd"|"insertps"|"pinsrb"| \
"pinsrd"|"pinsrq"|"extractps"|"pextrb"|"pextrw"|"pextrd"|"pextrq"|"pmovsxbw"|"pmovzxbw"|"pmovsxbd"|"pmovzxbd"|"pmovsxbq"| \
"pmovzxbq"|"pmovsxwd"|"pmovzxwd"|"pmovsxwq"|"pmovzxwq"|"pmovsxdq"|"pmovzxdq"|"ptest"|"pcmpeqq"|"packusdw"|"movntdqa") let ++sse4.1; print=1;;
"crc32"|"pcmpestri"|"pcmpestrm"|"pcmpistri"|"pcmpistrm"|"pcmpgtq"|"popcnt")
let ++sse4.2; print=1;;
"lzcnt"|"popcnt"|"extrq"|"insertq"|"movntsd"|"movntss")
let ++sse4a; print=1;;
"pavgusb"|"pfadd"|"pfsub"|"pfsubr"|"pfacc"|"pfcmpge"|"pfcmpgt"|"pfcmpeq"|"pfmin"|"pfmax"|"pi2fw"|"pi2fd"| \
"pf2iw"|"pf2id"|"pfrcp"|"pfrsqrt"|"pfmul"|"pfrcpit1"|"pfrsqit1"|"pfrcpit2"|"pmulhrw"|"pswapw"|"femms"|"prefetch") let ++amd; print=1;;
"pf2iw"|"pfnacc"|"pfpnacc"|"pi2fw"|"pswapd"|"maskmovq"|"movntq"|"pavgb"|"pavgw"|"pextrw"|"pinsrw"|"pmaxsw"|"pmaxub"| \
"pminsw"|"pminub"|"pmovmskb"|"pmulhuw"|"prefetchnta"|"prefetcht0"|"prefetcht1"|"prefetcht2"|"psadbw"|"pshufw"|"sfence") let ++amd2; print=1;;
"cpuid") let ++cpuid ++i586; print=1;;
# %cr{0,2,3,4} version
# "mov") [[ "$operands" == *%cr[0234]* ]] && let ++i586; print=1;;
esac
# check if screen needs updating.
if test "$print"; then
case "$vendor" in
*intel*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u sse3: %4u ssse3: %4u sse4.1: %4u sse4.2: %4u\r" \
$i486 $i586 $ppro $mmx $sse $sse2 $sse3 $ssse3 $sse41 $sse42;;
*amd*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u 3dnow: %4u sse2: %4u sse3: %4u sse4a: %4u\r" \
$i486 $i586 $ppro $mmx $sse $(($amd+$amd2)) $sse2 $sse3 $sse4a;;
*cyrix*) printf "i486: %4u i586: %4u mmx: %4u\r" \
$i486 $i586 $mmx;;
*transmeta*) printf "i486: %4u i586: %4u mmx: %4u\r" \
$i486 $i586 $mmx;;
*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u\r" \
$i486 $i586 $ppro $mmx $sse $sse2;;
esac
unset print
fi
done
# print a newline
echo
# cpuid instruction could mean the application checks to see
# if an instruction is supported before executing it. This might
# mean it will work on anything over a pentium.
if test $cpuid -gt 0; then
printf "\nThis binary was found to contain the cpuid instruction.\n"
printf "It may be able to conditionally execute instructions if\n"
printf "they are supported on the host (i586+).\n\n"
fi
# print minimum required processor, if there are collissions
# use the vendor to decide what to print.
if test $sse42 -gt 0; then
subarch="Pentium Nehalem (nehalem)"
elif test $sse41 -gt 0; then
subarch="Pentium x8000+ (penryn)"
elif test $ssse3 -gt 0; then
subarch="Pentium Core (core)"
elif test $sse3 -gt 0; then
subarch="Pentium IV (prescott)"
elif test $sse2 -gt 0; then
subarch="Pentium IV (pentium4)"
elif test $sse -gt 0; then
if test "$vendor" == "intel"; then
subarch="Pentium III (pentium3)"
elif test "$vendor" == "amd"; then
subarch="AMD Athlon 4 (athlon-4)"
else
subarch="Pentium III (pentium3)"
fi
elif test "$vendor" == "amd" -a $amd2 -gt 0; then
subarch="AMD Athlon (athlon)"
elif test "$vendor" == "amd" -a $amd -gt 0; then
subarch="AMD K6 III (k6-3)"
elif test $mmx -gt 0; then
if test "$vendor" == "intel"; then
if test $ppro -gt 0; then
subarch="Pentium II (pentium2)"
else
subarch="Intel Pentium MMX [P55C] (pentium-mmx)"
fi
elif test "$vendor" == "amd"; then
subarch="AMD K6 (k6)"
elif test "$vendor" == "cyrix"; then
subarch="Cyrix 6x86MX / MII (pentium-mmx)"
else
subarch="Intel Pentium MMX [P55C] (pentium-mmx)"
fi
elif test $ppro -gt 0; then
subarch="Pentium Pro (i686 or pentiumpro)"
elif test $i586 -gt 0; then
subarch="Pentium or compatible (i586) (i586 or pentium)"
elif test $i486 -gt 0; then
subarch="80486 or comaptible (i486)"
else
subarch="80386 or compatible (i386)"
fi
# print message and exit.
printf "%s will run on %s or higher processor.\n" "$1" "$subarch"; )
Dont forget to chmod 755 the above script
Now, lets teach an old Dog some new tricks
Code: Select all
localhost / # ./analyse-x86 /usr/bin/mplayer
Checking vendor_id string...GenuineIntel
Disassembling /usr/bin/mplayer, please wait...
i486: 135 i586: 13 ppro: 3 mmx: 163948 sse: 25106 sse2: 14512 sse3: 24 ssse3: 231 sse4.1: 0 sse4.2: 0
This binary was found to contain the cpuid instruction.
It may be able to conditionally execute instructions if
they are supported on the host (i586+).
/usr/bin/mplayer will run on Pentium Core (core) or higher processor.
As you can see it does check to see if your new CPU is actually using the codes it should be.
line breaks added by NeddySeagoon
)