# PHP for embedded device: reduce size - Thread: https://externals.io/message/51474 - Original archive: https://news-web.php.net/php.internals/51474 - Started by Martin Herrman on 2011-02-19T18:24:35+00:00 - Messages: 16 - Reply by email to internals@lists.php.net - More for agents: search with https://externals.io/search.md?q={query} · JSON API at https://externals.io/api · documentation at https://externals.io/llms.txt --- ## #51474 — Martin Herrman — 2011-02-19T18:24:35+00:00 URL: https://externals.io/message/51474#51474 All, I have cross-compiled php-cgi for a MIPS device (mediaplayer), but the binary is quite large, more than 3MB. I'm using: ./configure --prefix=../result/php-5.3.5 --host=i686-pc-linux-gnu --target=mipsel-linux-gnu --build=mipsel-linux-gnu --enable-cgi --disable-all --without-pear --with-config-file-path=/etc/ Which options do I have to reduce size of the binary? E.g. can I remove the zend engine? Thanks in advance, Martin --- ## #51475 — Alexey Zakhlestin — 2011-02-20T10:07:41+00:00 URL: https://externals.io/message/51474#51475 · In reply to: #51474 > All, > > I have cross-compiled php-cgi for a MIPS device (mediaplayer), but the > binary is quite large, more than 3MB. I'm using: > > ./configure --prefix=../result/php-5.3.5 --host=i686-pc-linux-gnu > --target=mipsel-linux-gnu --build=mipsel-linux-gnu --enable-cgi > --disable-all --without-pear --with-config-file-path=/etc/ > > Which options do I have to reduce size of the binary? E.g. can I > remove the zend engine? what do you mean by "remove the zend engine"? zend engine is the core, upon which php is built. -- Alexey Zakhlestin, http://twitter.com/jimi_dini http://www.milkfarmsoft.com/ --- ## #51476 — Martin Herrman — 2011-02-20T10:09:55+00:00 URL: https://externals.io/message/51474#51476 · In reply to: #51475 2011/2/20 Alexey Zakhlestin : > what do you mean by "remove the zend engine"? > zend engine is the core, upon which php is built. Ah, that explains a lot :-) I thought zend engine is an additional engine for performance reasons.. Is there any other way to decrease binary size? (workaround is to put php-cgi on external storage) --- ## #51477 — Patrick E. — 2011-02-20T13:06:00+00:00 URL: https://externals.io/message/51474#51477 · In reply to: #51476 > Is there any other way to decrease binary size? (workaround is to put > php-cgi on external storage) php-cgi 5.2.x = ~2.4mb "./configure" without : ... --without-iconv \ --without-pear \ --without-gd \ --disable-bcmath \ --disable-libxml --disable-dom --disable-simplexml --disable-xml --disable-xmlreader --disable-xmlwriter --without-pear \ --with-sqlite \ --without-pdo-sqlite -- freundliche Grüsse / best Regards, Patrick C. Engel --- ## #51478 — Reindl Harald — 2011-02-20T13:10:58+00:00 URL: https://externals.io/message/51474#51478 · In reply to: #51476 Am 20.02.2011 11:09, schrieb Martin Herrman: > 2011/2/20 Alexey Zakhlestin : > > > […] > > Ah, that explains a lot :-) I thought zend engine is an additional > engine for performance reasons.. > > Is there any other way to decrease binary size? (workaround is to put > php-cgi on external storage) ./configure --help disable all things you do not need, but be careful as long you do not know what you doing since "I thought zend engine is an additional engine" sounds like you are missing basics --- ## #51479 — Martin Herrman — 2011-02-20T14:52:59+00:00 URL: https://externals.io/message/51474#51479 · In reply to: #51477 2011/2/20 Patrick E. : > php-cgi 5.2.x = ~2.4mb "./configure" without : > ... > --without-iconv \ > --without-pear  \ > --without-gd \ > --disable-bcmath  \ > --disable-libxml --disable-dom --disable-simplexml --disable-xml > --disable-xmlreader --disable-xmlwriter --without-pear  \ > --with-sqlite \ > --without-pdo-sqlite For latest 5.3.x it still results in a 3+ MB php-cgi binary. --- ## #51480 — Martin Herrman — 2011-02-20T14:55:07+00:00 URL: https://externals.io/message/51474#51480 · In reply to: #51478 2011/2/20 Reindl Harald : > ./configure --help > > disable all things you do not need, but be careful as long you > do not know what you doing since "I thought zend engine is an > additional engine" sounds like you are missing basics I'll go through the list of options again and disable everything possible. I am aware of the fact that you must think that I'm a noob, which is partly true. I do have some PHP programming experience and sometimes tried to use a function that was not available because it was not compiled in. But I just tried to have some really basic functionality included, I can rebuild again when needed. But still: thanks for the warning :-) --- ## #51481 — Lytochkin Boris — 2011-02-20T15:00:13+00:00 URL: https://externals.io/message/51474#51481 · In reply to: #51474 > All, > > I have cross-compiled php-cgi for a MIPS device (mediaplayer), but the > binary is quite large, more than 3MB. I'm using: > > ./configure --prefix=../result/php-5.3.5 --host=i686-pc-linux-gnu > --target=mipsel-linux-gnu --build=mipsel-linux-gnu --enable-cgi > --disable-all --without-pear --with-config-file-path=/etc/ > > Which options do I have to reduce size of the binary? Check Makefile and correct cc's -O setting to -Os before compiling. Is your binary stripped? -- Boris --- ## #51482 — Reindl Harald — 2011-02-20T15:01:18+00:00 URL: https://externals.io/message/51474#51482 · In reply to: #51479 Am 20.02.2011 15:52, schrieb Martin Herrman: > 2011/2/20 Patrick E. : > > > […] > > For latest 5.3.x it still results in a 3+ MB php-cgi binary. There are some more swicthes --disable-all Disable all extensions which are enabled by default What about "--disable-all" followed by "--enable-feature" for all you want to have? The follwoing are not needed in most cases --disable-ipv6 --disable-posix --disable-phar --disable-json __________________________________ --disable-ipv6 Disable IPv6 support --disable-libxml Disable LIBXML support --disable-ctype Disable ctype functions --disable-inifile DBA: INI support (bundled) --disable-flatfile DBA: FlatFile support (bundled) --disable-dom Disable DOM support --disable-fileinfo Disable fileinfo support --disable-filter Disable input filter support --disable-hash Disable hash support --disable-json Disable JavaScript Object Serialization support --disable-mbregex MBSTRING: Disable multibyte regex support --disable-pdo Disable PHP Data Objects support --disable-phar Disable phar support --disable-posix Disable POSIX-like functions --disable-session Disable session support --disable-simplexml Disable SimpleXML support --disable-tokenizer Disable tokenizer support --disable-xml Disable XML support --disable-xmlreader Disable XMLReader support --disable-xmlwriter Disable XMLWriter support --- ## #51483 — Martin Herrman — 2011-02-20T15:42:28+00:00 URL: https://externals.io/message/51474#51483 · In reply to: #51482 2011/2/20 Reindl Harald : > There are some more swicthes > --disable-all   Disable all extensions which are enabled by default > > What about "--disable-all" followed by "--enable-feature" for all > you want to have? > > The follwoing are not needed in most cases > --disable-ipv6 > --disable-posix > --disable-phar > --disable-json > __________________________________ > >  --disable-ipv6          Disable IPv6 support >  --disable-libxml        Disable LIBXML support >  --disable-ctype         Disable ctype functions >  --disable-inifile       DBA: INI support (bundled) >  --disable-flatfile      DBA: FlatFile support (bundled) >  --disable-dom           Disable DOM support >  --disable-fileinfo      Disable fileinfo support >  --disable-filter        Disable input filter support >  --disable-hash          Disable hash support >  --disable-json          Disable JavaScript Object Serialization support >  --disable-mbregex       MBSTRING: Disable multibyte regex support >  --disable-pdo           Disable PHP Data Objects support >  --disable-phar          Disable phar support >  --disable-posix         Disable POSIX-like functions >  --disable-session       Disable session support >  --disable-simplexml     Disable SimpleXML support >  --disable-tokenizer     Disable tokenizer support >  --disable-xml           Disable XML support >  --disable-xmlreader     Disable XMLReader support >  --disable-xmlwriter     Disable XMLWriter support I already had --disabled-all. I have now tested with -Os instead of -O2 which results in a 2.8MB executable. So that helps a bit :-) --- ## #51484 — Rasmus Lerdorf — 2011-02-20T15:50:44+00:00 URL: https://externals.io/message/51474#51484 · In reply to: #51483 > 2011/2/20 Reindl Harald : > > > […] > > I already had --disabled-all. I have now tested with -Os instead of > -O2 which results in a 2.8MB executable. So that helps a bit :-) 2.8M? My php binary with just about everything compiled in is around 1MB. Do this: file php See how it says "not stripped" ? That means you have left all the debugging symbols in. Now do this: strip php Then check the file size. Magic! -Rasmus --- ## #51485 — Ferenc Kovacs — 2011-02-20T15:52:06+00:00 URL: https://externals.io/message/51474#51485 · In reply to: #51482 On Sun, Feb 20, 2011 at 4:01 PM, Reindl Harald wrote: > > > Am 20.02.2011 15:52, schrieb Martin Herrman: > > […] > > There are some more swicthes > --disable-all Disable all extensions which are enabled by default > > What about "--disable-all" followed by "--enable-feature" for all > you want to have? > > The follwoing are not needed in most cases > --disable-ipv6 > --disable-posix > --disable-phar > --disable-json > __________________________________ > > --disable-ipv6 Disable IPv6 support > --disable-libxml Disable LIBXML support > --disable-ctype Disable ctype functions > --disable-inifile DBA: INI support (bundled) > --disable-flatfile DBA: FlatFile support (bundled) > --disable-dom Disable DOM support > --disable-fileinfo Disable fileinfo support > --disable-filter Disable input filter support > --disable-hash Disable hash support > --disable-json Disable JavaScript Object Serialization support > --disable-mbregex MBSTRING: Disable multibyte regex support > --disable-pdo Disable PHP Data Objects support > --disable-phar Disable phar support > --disable-posix Disable POSIX-like functions > --disable-session Disable session support > --disable-simplexml Disable SimpleXML support > --disable-tokenizer Disable tokenizer support > --disable-xml Disable XML support > --disable-xmlreader Disable XMLReader support > --disable-xmlwriter Disable XMLWriter support > > did you bother to read his first email? he exactly did that: --disable-all and --enable-cgi Tyrael --- ## #51486 — Daniel Brown — 2011-02-20T15:53:07+00:00 URL: https://externals.io/message/51474#51486 · In reply to: #51483 > > I already had --disabled-all. I have now tested with -Os instead of > -O2 which results in a 2.8MB executable. So that helps a bit :-) Try running `strip` on there to take out the excess symbols. -- Network Infrastructure Manager Documentation, Webmaster Teams http://www.php.net/ --- ## #51487 — jvlad — 2011-02-20T16:10:19+00:00 URL: https://externals.io/message/51474#51487 · In reply to: #51474 > All, > > I have cross-compiled php-cgi for a MIPS device (mediaplayer), but the > binary is quite large, more than 3MB. I'm using: > > ./configure --prefix=../result/php-5.3.5 --host=i686-pc-linux-gnu > --target=mipsel-linux-gnu --build=mipsel-linux-gnu --enable-cgi > --disable-all --without-pear --with-config-file-path=/etc/ > > Which options do I have to reduce size of the binary? E.g. can I > remove the zend engine? you may want to re-generate zend_vm_execute.h php zend_vm_gen.php --without-specializer It will save ~300k. also you may want to try to remove Reflection, SPL and Date extensions and optimize for size: -O1 instead of performance (-O2) Don't forget to strip off debug info from the binary. regards, j --- ## #51488 — Martin Herrman — 2011-02-20T16:17:17+00:00 URL: https://externals.io/message/51474#51488 · In reply to: #51486 2011/2/20 Daniel Brown : > > > […] > >    Try running `strip` on there to take out the excess symbols. This is my cross-compile script for -O2: #!/bin/sh # Set variables export CFLAGS="-EL -O2" export CXXFLAGS="-EL -O2" export CC="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-gcc" export CXX="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-g++" export PATH=/opt/Sourcery_G++_Lite/bin:$PATH export AR="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-ar" export LDFLAGS=" -s -Xlinker -rpath /lib -Xlinker -rpath-link /opt/Sourcery_G++_Lite/lib/gcc/mips-linux-gnu/4.3.3/el" export STRIP="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-strip" export RANLIB="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-ranlib" export AS="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-as" export LD="/opt/Sourcery_G++_Lite/bin/mips-linux-gnu-ld" # Cleanup previous compilations rm -rf /home/martin/result/php-5.3.5 rm -rf /home/martin/work/php* # Download source and configure, compile, install cd /home/martin/work wget http://nl.php.net/get/php-5.3.5.tar.gz/from/this/mirror -O php-5.3.5.tar.gz tar -zxvf php-5.3.5.tar.gz cd php-5.3.5 #./configure --help ./configure --prefix=/home/martin/result/php-5.3.5 --host=i686-pc-linux-gnu --target=mipsel-linux-gnu --build=mipsel-linux-gnu --enable-cgi --disable-all --without-pear make make install This is the result: martin@martindesktop ~/ $ ls -ltr result/php-5.3.5/bin/php-cgi -rwxr-xr-x 1 martin users 3142772 Feb 20 16:58 result/php-5.3.5/bin/php-cgi martin@martindesktop ~/ $ file result/php-5.3.5/bin/php-cgi result/php-5.3.5/bin/php-cgi: ELF 32-bit LSB executable, MIPS, MIPS32 rel2 version 1, dynamically linked (uses shared libs), for GNU/Linux 2.6.12, with unknown capability 0xf41 = 0x756e6700, with unknown capability 0x70100 = 0x1040000, stripped martin@martindesktop ~/ $ /opt/Sourcery_G++_Lite/bin/mips-linux-gnu-strip result/php-5.3.5/bin/php-cgi martin@martindesktop ~/ $ file result/php-5.3.5/bin/php-cgi result/php-5.3.5/bin/php-cgi: ELF 32-bit LSB executable, MIPS, MIPS32 rel2 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.12, with unknown capability 0xf41 = 0x756e6700, with unknown capability 0x70100 = 0x1040000, stripped martin@martindesktop ~/ $ ls -ltr result/php-5.3.5/bin/php-cgi -rwxr-xr-x 1 martin users 3142772 Feb 20 17:07 result/php-5.3.5/bin/php-cgi martin@martindesktop ~/ $ Now for -Os: martin@martindesktop ~/ $ ls -ltr result/php-5.3.5/bin/php-cgi -rwxr-xr-x 1 martin users 2813508 Feb 20 17:10 result/php-5.3.5/bin/php-cgi martin@martindesktop ~/ $ file result/php-5.3.5/bin/php-cgi result/php-5.3.5/bin/php-cgi: ELF 32-bit LSB executable, MIPS, MIPS32 rel2 version 1, dynamically linked (uses shared libs), for GNU/Linux 2.6.12, with unknown capability 0xf41 = 0x756e6700, with unknown capability 0x70100 = 0x1040000, stripped martin@martindesktop ~/ $ /opt/Sourcery_G++_Lite/bin/mips-linux-gnu-strip result/php-5.3.5/bin/php-cgi martin@martindesktop ~/ $ ls -ltr result/php-5.3.5/bin/php-cgi -rwxr-xr-x 1 martin users 2813508 Feb 20 17:16 result/php-5.3.5/bin/php-cgi martin@martindesktop ~/ $ file result/php-5.3.5/bin/php-cgi result/php-5.3.5/bin/php-cgi: ELF 32-bit LSB executable, MIPS, MIPS32 rel2 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.12, with unknown capability 0xf41 = 0x756e6700, with unknown capability 0x70100 = 0x1040000, stripped martin@martindesktop ~/ $ --- ## #51494 — Andi Gutmans — 2011-02-22T04:21:29+00:00 URL: https://externals.io/message/51474#51494 · In reply to: #51474 HI Martin, Is it only file size you worry about or also memory footprint? I assume it'd also be the latter. If so, we can share a patch we've worked on which could allow you to reduce the memory footprint at compile time somewhat more (on the expense of performance, ...). We were going to send it out for review anyway so this could be it :) Andi -----Original Message----- From: martin.herrman@gmail.com [mailto:martin.herrman@gmail.com] On Behalf Of Martin Herrman Sent: Saturday, February 19, 2011 10:25 AM To: internals@lists.php.net Subject: [PHP-DEV] PHP for embedded device: reduce size All, I have cross-compiled php-cgi for a MIPS device (mediaplayer), but the binary is quite large, more than 3MB. I'm using: ./configure --prefix=../result/php-5.3.5 --host=i686-pc-linux-gnu --target=mipsel-linux-gnu --build=mipsel-linux-gnu --enable-cgi --disable-all --without-pear --with-config-file-path=/etc/ Which options do I have to reduce size of the binary? E.g. can I remove the zend engine? Thanks in advance, Martin