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If there's enough memory (half a gig per processor), use 1.5x as many CPUs to try to keep 'em busy.
author Rob Landley <rob@landley.net>
date Tue, 24 Nov 2009 03:19:07 -0600
parents 850da666acc6
children f1671488c740
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1 #!/bin/echo "This file is sourced, not run"
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2
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3 # Set up all the environment variables and functions for a build stage.
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4 # This file is sourced, not run.
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7dffe9648a56 Installing bash but not using it. Yeah, there's a political agenda at work
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6 # Include config and sources/functions.sh
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4e11cfb255e2 Break config out from include.sh, so environment variables users can edit to affect the build are collected together in one place with nothing else in it.
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8 [ -e config ] && source config
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759adf5a0fe9 Refactor so include.sh mostly just sets environment variables. Move read_arch_dir to function and call it explicitly (no more need for $NO_ARCH). Make blank_tempdir a function, called explicitly by stages when needed, with some sanity checks. Insert prerequisite tests to later stages so they can detect failure early and provide an explicit erro rmessage, and have those tests happen before blanking $WORK dir, to preserve debugging info. Make buildall.sh depend on prerequisite tests rather than trying to avoid calling later stages (and thus do flow control from asynchronous context). Add FAIL_QUIET option so buildall.sh doesn't spam the log with the new prerequisite error messages.
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10 source sources/functions.sh
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a7daae215647 Implement unstable package download logic, with examples. (Try "USE_UNSTABLE=uClibc,linux ./download.sh" for example.)
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12 # Where are our working directories?
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14 TOP=`pwd`
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15 export SOURCES="$TOP/sources"
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16 export SRCDIR="$TOP/packages"
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17 export BUILD="$TOP/build"
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18 export HOSTTOOLS="$BUILD/host"
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19 export WRAPDIR="$BUILD/wrapdir"
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21 # Set a default non-arch
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23 export WORK="${BUILD}/host-temp"
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24 export ARCH_NAME=host
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25
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26 # What host compiler should we use?
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27
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104e8a35ea2e Move more stuff towards using "cc" instead of "gcc".
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28 [ -z "$CC" ] && export CC=cc
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29
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30 # How many processors should make -j use?
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31
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32 MEMTOTAL="$(awk '/MemTotal:/{print $2}' /proc/meminfo)"
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33 if [ -z "$CPUS" ]
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34 then
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80f3356577fc Move kernel building from mini-native to package-mini-native in preparation for initramfs packaging option.
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35 export CPUS=$(echo /sys/devices/system/cpu/cpu[0-9]* | wc -w)
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36 [ "$CPUS" -lt 1 ] && CPUS=1
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38 # If there's enough memory, try to make CPUs stay busy.
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40 [ $(($CPUS*512*1024)) -le $MEMTOTAL ] && CPUS=$((($CPUS*3)/2))
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41 fi
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42
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43 [ -z "$STAGE_NAME" ] && STAGE_NAME=`echo $0 | sed 's@.*/\(.*\)\.sh@\1@'`
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44 [ ! -z "$BUILD_VERBOSE" ] && VERBOSITY="V=1"
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7523d1f3b818 Some slight paranoia against multiple host-tools.sh runs that get interrupted in the middle. (Yeah, in general that's not guaranteed to work, but still...)
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46 # Adjust $PATH
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48 export OLDPATH="$PATH"
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49 PATH="$(hosttools_path)"
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51 # If record-commands.sh set up a wrapper directory, adjust $PATH again.
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52 if [ -f "$WRAPDIR/wrappy" ]
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53 then
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54 export WRAPPY_LOGPATH="$BUILD/logs/cmdlines.$ARCH_NAME.early"
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55 OLDPATH="$PATH:$OLDPATH"
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56 PATH="$WRAPDIR"
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57 elif [ ! -f "$HOSTTOOLS/busybox" ]
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58 then
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parents: 854
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59 PATH="$PATH:$OLDPATH"
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60 fi
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61
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62 # Create files with known permissions
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63 umask 022
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ab76d4cdd392 Jean Wolter pointed out that running RECORD_COMMANDS=1 twice could create circular symlinks. Hopefully fixed now, and some related cleanups/clarifications.
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64
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65 # Tell bash not to cache the $PATH because we modify it. (Without this, bash
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66 # won't find new executables added after startup.)
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67 set +h
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68
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69 # Disable internationalization so sort and sed and such can cope with ASCII.
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71 export LC_ALL=C