/[gentoo-x86]/eclass/eutils.eclass
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1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2005 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.173 2005/05/24 03:17:19 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.174 2005/05/24 05:10:19 vapier Exp $
4# 4#
5# Author: Martin Schlemmer <azarah@gentoo.org> 5# Author: Martin Schlemmer <azarah@gentoo.org>
6# 6#
7# This eclass is for general purpose functions that most ebuilds 7# This eclass is for general purpose functions that most ebuilds
8# have to implement themselves. 8# have to implement themselves.
366 fi 366 fi
367 done 367 done
368 if [ "${SINGLE_PATCH}" = "no" ] 368 if [ "${SINGLE_PATCH}" = "no" ]
369 then 369 then
370 einfo "Done with patching" 370 einfo "Done with patching"
371 fi
372}
373
374# This function check how many cpu's are present, and then set
375# -j in MAKEOPTS accordingly.
376#
377# Thanks to nall <nall@gentoo.org> for this.
378#
379get_number_of_jobs() {
380 local jobs=0
381
382 if [ ! -r /proc/cpuinfo ]
383 then
384 return 1
385 fi
386
387 # This bit is from H?kan Wessberg <nacka-gentoo@refug.org>, bug #13565.
388 if [ "`egrep "^[[:space:]]*MAKEOPTS=" /etc/make.conf | wc -l`" -gt 0 ]
389 then
390 ADMINOPTS="`egrep "^[[:space:]]*MAKEOPTS=" /etc/make.conf | cut -d= -f2 | sed 's/\"//g'`"
391 ADMINPARAM="`echo ${ADMINOPTS} | gawk '{match($0, /-j *[0-9]*/, opt); print opt[0]}'`"
392 ADMINPARAM="${ADMINPARAM/-j}"
393 fi
394
395 export MAKEOPTS="`echo ${MAKEOPTS} | sed -e 's:-j *[0-9]*::g'`"
396
397 if [ "${ARCH}" = "amd64" -o "${ARCH}" = "x86" -o "${ARCH}" = "hppa" -o \
398 "${ARCH}" = "arm" -o "${ARCH}" = "mips" -o "${ARCH}" = "ia64" ]
399 then
400 # these archs will always have "[Pp]rocessor"
401 jobs="$((`grep -c ^[Pp]rocessor /proc/cpuinfo` * 2))"
402
403 elif [ "${ARCH}" = "sparc" -o "${ARCH}" = "sparc64" ]
404 then
405 # sparc always has "ncpus active"
406 jobs="$((`grep "^ncpus active" /proc/cpuinfo | sed -e "s/^.*: //"` * 2))"
407
408 elif [ "${ARCH}" = "alpha" ]
409 then
410 # alpha has "cpus active", but only when compiled with SMP
411 if [ "`grep -c "^cpus active" /proc/cpuinfo`" -eq 1 ]
412 then
413 jobs="$((`grep "^cpus active" /proc/cpuinfo | sed -e "s/^.*: //"` * 2))"
414 else
415 jobs=2
416 fi
417
418 elif [ "${ARCH}" = "ppc" -o "${ARCH}" = "ppc64" ]
419 then
420 # ppc has "processor", but only when compiled with SMP
421 if [ "`grep -c "^processor" /proc/cpuinfo`" -eq 1 ]
422 then
423 jobs="$((`grep -c ^processor /proc/cpuinfo` * 2))"
424 else
425 jobs=2
426 fi
427 elif [ "${ARCH}" = "s390" ]
428 then
429 # s390 has "# processors : "
430 jobs="$((`grep "^\# processors" /proc/cpuinfo | sed -e "s/^.*: //"` * 2))"
431 else
432 jobs="$((`grep -c ^cpu /proc/cpuinfo` * 2))"
433 die "Unknown ARCH -- ${ARCH}!"
434 fi
435
436 # Make sure the number is valid ...
437 if [ "${jobs}" -lt 1 ]
438 then
439 jobs=1
440 fi
441
442 if [ -n "${ADMINPARAM}" ]
443 then
444 if [ "${jobs}" -gt "${ADMINPARAM}" ]
445 then
446 einfo "Setting make jobs to \"-j${ADMINPARAM}\" to ensure successful merge ..."
447 export MAKEOPTS="${MAKEOPTS} -j${ADMINPARAM}"
448 else
449 einfo "Setting make jobs to \"-j${jobs}\" to ensure successful merge ..."
450 export MAKEOPTS="${MAKEOPTS} -j${jobs}"
451 fi
452 fi 371 fi
453} 372}
454 373
455# Cheap replacement for when debianutils (and thus mktemp) 374# Cheap replacement for when debianutils (and thus mktemp)
456# does not exist on the users system 375# does not exist on the users system

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