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On Mon, Mar 23, 2015 at 06:18:46PM -0400, Mike Gilbert wrote |
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> You will probably need to add -m32 to CFLAGS to avoid building 64-bit |
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> objects on the 64-bit machine. |
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How could i686-pc-linux-gnu-gcc build 64-bit stuff in the first place? |
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I followed the instructions, and ran the following on the host 64-bit |
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machine... |
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[d531][root][~] crossdev -t -S i686-pc-linux-gnu |
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[d531][root][~] i686-pc-linux-gnu-gcc --version |
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i686-pc-linux-gnu-gcc (Gentoo 4.9.2 p1.2, pie-0.6.2) 4.9.2 |
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Copyright (C) 2014 Free Software Foundation, Inc. |
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This is free software; see the source for copying conditions. There is NO |
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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[d531][root][~] echo 'int main(){return 0;}' > ctest.c |
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[d531][root][~] i686-pc-linux-gnu-gcc -Wall ctest.c -o ctest |
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[d531][root][~] file ctest |
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ctest: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), |
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dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux |
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2.6.32, not stripped |
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Here's how far I've gotten with the setup. Let me know if I'm missing |
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anything... |
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========================================================================= |
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On the host; 64-bit Gentoo on Core2; IP address 192.168.123.251 |
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# emerge crossdev |
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# crossdev -t -S i686-pc-linux-gnu |
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# emerge distcc |
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edit /etc/conf.d/distccd to indicate allowed client(s). Change the |
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DISTCCD_OPTS line to... |
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DISTCCD_OPTS="--port 3632 --log-level notice --log-file /var/log/distccd.log -N 15 --allow 192.168.123.253 |
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get distccd service running now and every boot up (OpenRC)... |
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# rc-update add distccd default |
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# rc-service distccd start |
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I believe it's OK to leave "-march=native" in the host's make.conf |
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========================================================================= |
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On the client; underpowered ancient 32-bit Atom netbook; 192.168.123.253 |
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# emerge distcc |
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specify host(s) |
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# /usr/bin/distcc-config --set-hosts "192.168.123.251" |
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This modifies /etc/distcc/hosts |
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In make.conf make the following changes |
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MAKEOPTS="-j1 -l2" |
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add "distcc distcc-pump" to FEATURES variable |
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Replace "-march=native" in CFLAGS with output of... |
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# gcc -v -E -x c -march=native -mtune=native - < /dev/null 2>&1 | grep cc1 | perl -pe 's/ -mno-\S+//g; s/^.* - //g;' |
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Note that the distcc wiki page gives different instructions here than |
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the crossdev wiki page. The command goes out of its way to remove the |
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"-mno-<whatever>" compiler flags. This results in (one long line)... |
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CFLAGS="-O2 -march=atom -msahf -mmovbe -mfxsr --param l1-cache-size=24 |
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--param l1-cache-line-size=64 --param l2-cache-size=512 -mtune=atom |
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-fstack-protector -mfpmath=sse -fomit-frame-pointer -pipe |
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-fno-unwind-tables -fno-asynchronous-unwind-tables" |
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Note that I include "-mfpmath=sse -fomit-frame-pointer -pipe |
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-fno-unwind-tables -fno-asynchronous-unwind-tables" myself. |
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========================================================================= |
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Now for the questions... |
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1) https://wiki.gentoo.org/wiki/Distcc#Using_distcc_with_automake |
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mentions adding... |
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export PATH="/usr/lib/ccache/bin:/usr/lib/distcc/bin:${PATH}" |
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...to /etc/env.d/ Is this necessary for Portage/emerge/etc, or is |
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"automake" something separate? (You can tell I'm not a programmer, let |
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alone a developer.) |
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2) The docs mention running emerge on the client with the command... |
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# pump emerge -u world |
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Is that all there is, or am I missing something? Does it |
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"automagically" install properly? Can I assume that... |
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a) The "pump" command does the lookup in /etc/distcc/hosts for the |
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appropriate server |
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b) The line... |
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CHOST="i686-pc-linux-gnu" |
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...in the client's make.conf is sufficient to tell emerge to use |
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"/usr/bin/i686-pc-linux-gnu-gcc" on the host and not "/usr/bin/gcc"? |
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3) Is this supposed to happen on the host... |
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===================================================== |
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[d531][waltdnes][~] gcc-config -l |
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[1] i686-pc-linux-gnu-4.9.2 * |
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[2] x86_64-pc-linux-gnu-4.8.3 * |
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===================================================== |
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Note that the asterisk after "x86_64-pc-linux-gnu-4.8.3" is green. |
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4) Is the command... |
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# DISTCC_DIR="" distccmon-text 5 |
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Or: |
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# DISTCC_DIR="" distccmon-gnome |
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...supposed to be run from a seprate terminal? |
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-- |
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Walter Dnes <waltdnes@××××××××.org> |
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I don't run "desktop environments"; I run useful applications |
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