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I tested your script on P4 and Athlon XP Gentoo machines |
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built from stage1 with these CFLAGS: |
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|
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P4 CFLAGS="-march=i686 -O3 -pipe" |
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AMD-XP CFLAGS="-march=athlon-xp -O3 -pipe" |
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|
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Received the same answer: |
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|
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$ bin/analyse-x86 /bin/bash |
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Checking vendor_id string... GenuineIntel ( or AuthenticAMD ) |
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Disassembling /bin/bash, please wait... |
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i486: 0 i586: 0 mmx: 0 sse: 0 3dnow: 0 ext3dnow: 0 |
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/bin/bash will run on 80386 or compatible (i386) or higher processor. |
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|
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So something is wrong ... |
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|
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noro |
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|
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|
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|
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Tavis Ormandy wrote: |
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|
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>Hey, this is an x86 port of a script i wrote (with some help from |
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>wwoods) to identify what processor an alpha binary would work on. |
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> |
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>I think its pretty cool, and had some good feedback so im posting it |
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>here :) |
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> |
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>Example: |
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> |
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>$ ./analyse-x86 /bin/ls |
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>Checking vendor_id string...GenuineIntel |
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>Disassembling /bin/ls, please wait... |
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>i486: 0 i586: 0 ppro: 15 mmx: 0 sse: 8 sse2: 0 |
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>/bin/ls will run on Pentium III (pentium3) or higher processor. |
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> |
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> |
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> |
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>------------------------------------------------------------------------ |
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> |
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>#!/bin/sh |
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># Tavis Ormandy <taviso@g.o> 2003 |
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># Improvments by Will Woods <wwoods@g.o> |
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># |
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># Identify instruction set used in binary. |
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># |
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> |
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># initialize everything to zero. |
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>eval {i486,i586,ppro,mmx,sse,sse2,amd,amd2,cpuid}=0 |
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> |
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># unfortunately there are mnemonic collissions between vendor sets |
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># so check vendor_id string, and enable relevant sets. |
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>printf "Checking vendor_id string..." |
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>if ! test "${1%=*}" == "--vendor"; then |
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> case "`grep -Em1 '^vendor_id.*: ' /proc/cpuinfo | cut -d" " -f2`" in |
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> *GenuineIntel*) vendor=intel; printf "GenuineIntel\n";; |
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> *AuthenticAMD*) vendor=amd; printf "AuthenticAMD\n";; |
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> *CyrixInstead*) vendor=cyrix; printf "CyrixInstead\n";; |
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> *GenuineTMx86*) vendor=transmeta; printf "GenuineTMx86\n";; |
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> *) vendor=other; printf "other\n";; |
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> esac |
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>else |
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> # allow vendor to be overridden |
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> vendor=${1#*=}; shift |
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> printf "%s\n" $vendor |
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>fi |
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> |
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># quick sanity tests. |
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>if ! test "$1"; then |
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> printf "usage: %s [--vendor=intel|amd|cyrix|transmeta] /path/to/binary\n" $0 1>&2 |
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> exit 1 |
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>elif ! test -e "$1"; then |
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> printf "error: %s does not exist.\n" "$1" 1>&2 |
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> exit 1 |
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>elif ! test -r "$1"; then |
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> printf "error: cant read %s.\n" "$1" 1>&2 |
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> exit 1 |
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>fi |
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> |
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>printf "Disassembling %s, please wait...\n" $1 |
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> |
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># initialize screen output |
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>case "$vendor" in |
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> *intel*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u\r" \ |
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> $i486 $i586 $ppro $mmx $sse $sse2;; |
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> *amd*) printf "i486: %4u i586: %4u mmx: %4u sse: %4u 3dnow: %4u ext3dnow: %4u\r" \ |
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> $i486 $i586 $mmx $sse $amd $amd2;; |
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> *cyrix*) printf "i486: %4u i586: %4u mmx: %4u\r" \ |
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> $i486 $i586 $mmx;; |
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> *transmeta*) printf "i486: %4u i586: %4u mmx: %4u\r" \ |
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> $i486 $i586 $mmx;; |
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> *) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u\r" \ |
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> $i486 $i586 $ppro $mmx $sse $sse2;; |
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>esac |
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> |
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># do the disassembling. |
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>objdump -d $1 | cut -f3 | cut -d" " -f1 | ( |
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> while read instruction; do |
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> case "$instruction" in |
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> "cmpxchg"|"xadd"|"bswap"|"invd"|"wbinvd"|"invlpg") let ++i486; print=1;; |
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> "rdmsr"|"wrmsr"|"rdtsc"|"cmpxch8B"|"rsm") let ++i586; print=1;; |
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> "cmovcc"|"fcmovcc"|"fcomi"|"fcomip"|"fucomi"|"fucomip"|"rdpmc"|"ud2") let ++ppro; print=1;; |
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> "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;; |
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> "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;; |
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> "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;; |
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> "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;; |
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> "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;; |
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> "cpuid") let ++cpuid ++i586; print=1;; |
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> esac |
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> # check if screen needs updating. |
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> if test "$print"; then |
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> case "$vendor" in |
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> *intel*) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u\r" \ |
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> $i486 $i586 $ppro $mmx $sse $sse2;; |
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> *amd*) printf "i486: %4u i586: %4u mmx: %4u sse: %4u 3dnow: %4u ext3dnow: %4u\r" \ |
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> $i486 $i586 $mmx $sse $amd $amd2;; |
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> *cyrix*) printf "i486: %4u i586: %4u mmx: %4u\r" \ |
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> $i486 $i586 $mmx;; |
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> *transmeta*) printf "i486: %4u i586: %4u mmx: %4u\r" \ |
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> $i486 $i586 $mmx;; |
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> *) printf "i486: %4u i586: %4u ppro: %4u mmx: %4u sse: %4u sse2: %4u\r" \ |
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> $i486 $i586 $ppro $mmx $sse $sse2;; |
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> esac |
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> unset print |
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> fi |
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> done |
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> |
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># print a newline |
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>echo |
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> |
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># cpuid instruction could mean the application checks to see |
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># if an instruction is supported before executing it. This might |
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># mean it will work on anything over a pentium. |
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>if test $cpuid -gt 0; then |
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> printf "\nThis binary was found to contain the cpuid instruction.\n" |
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> printf "It may be able to conditionally execute instructions if\n" |
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> printf "they are supported on the host (i586+).\n\n" |
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>fi |
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> |
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># print minimum required processor, if there are collissions |
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># use the vendor to decide what to print. |
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>if test $sse2 -gt 0; then |
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> subarch="Pentium IV (pentium4)" |
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>elif test $sse -gt 0; then |
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> if test "$vendor" == "intel"; then |
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> subarch="Pentium III (pentium3)" |
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> elif test "$vendor" == "amd"; then |
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> subarch="AMD Athlon 4 (athlon-4)" |
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> else |
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> subarch="Pentium III (pentium3)" |
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> fi |
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>elif test "$vendor" == "amd" -a $amd2 -gt 0; then |
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> subarch="AMD Athlon (athlon)" |
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>elif test "$vendor" == "amd" -a $amd -gt 0; then |
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> subarch="AMD K6 III (k6-3)" |
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>elif test $mmx -gt 0; then |
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> if test "$vendor" == "intel"; then |
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> if $ppro -gt 0; then |
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> subarch="Pentium II (pentium2)" |
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> else |
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> subarch="Intel Pentium MMX [P55C] (pentium-mmx)" |
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> fi |
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> elif test "$vendor" == "amd"; then |
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> subarch="AMD K6 (k6)" |
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> elif test "$vendor" == "cyrix"; then |
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> subarch="Cyrix 6x86MX / MII (pentium-mmx)" |
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> else |
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> subarch="Intel Pentium MMX [P55C] (pentium-mmx)" |
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> fi |
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>elif test $ppro -gt 0; then |
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> subarch="Pentium Pro (i686 or pentiumpro)" |
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>elif test $i586 -gt 0; then |
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> subarch="Pentium or compatible (i586) (i586 or pentium)" |
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>elif test $i486 -gt 0; then |
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> subarch="80486 or comaptible (i486)" |
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>else |
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> subarch="80386 or compatible (i386)" |
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>fi |
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> |
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># print message and exit. |
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>printf "%s will run on %s or higher processor.\n" "$1" "$subarch"; ) |
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> |
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> |
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> |
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>------------------------------------------------------------------------ |
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> |
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>-- |
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>gentoo-dev@g.o mailing list |
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> |
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|
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|
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-- |
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