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annotate scripts/make.sh @ 1458:4428d64c0c40 draft

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Don't hang for $CPUS=1. echo prints a newline if it has nothing to print, so wc -l always returns at least 1. Fix: echo -n
author Rob Landley <rob@landley.net>
date Thu, 04 Sep 2014 00:23:51 -0500
parents ab91ee85afbd
children aa0ae038e275
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of
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1 #!/bin/bash
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2
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of
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3 # Grab default values for $CFLAGS and such.
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4
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c7e7b159568d The host sort on many distros behaves stupidly, and sorts stuff in non-ascii order by default. Make it stop.
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5 export LANG=c
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0089cd84afea Another fix from Johan Bergstr?m, using the gnu/dammit version of sort on the host can be screwed up by more than one environment variable.
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6 export LC_ALL=C
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7 source ./configure
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8
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9 [ -z "$KCONFIG_CONFIG" ] && KCONFIG_CONFIG=".config"
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10
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f46ccbcf3f13 Fix parallel make not always catching errors before link time.
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11 [ -z "$CPUS" ] && CPUS=$(($(echo /sys/devices/system/cpu/cpu[0-9]* | wc -w)+1))
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2986aa63a021 Move commands into "posix", "lsb", and "other" menus/directories.
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12
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260cce6c3e35 Replace python help converter with C implementation.
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13 # Respond to V= by echoing command lines as well as running them
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14 do_loudly()
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15 {
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16 [ ! -z "$V" ] && echo "$@"
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17 "$@"
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18 }
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19
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20 echo "Make generated/config.h from $KCONFIG_CONFIG."
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21
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of
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22 # This long and roundabout sed invocation is to make old versions of sed happy.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of
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23 # New ones have '\n' so can replace one line with two without all the branches
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24 # and tedious mucking about with hold space.
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25
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d0bf1df83c04 Re-wordwrap and reorder the .config->config.h sed script. (No real changes, just one command/line in a clearer order.)
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26 sed -n \
d0bf1df83c04 Re-wordwrap and reorder the .config->config.h sed script. (No real changes, just one command/line in a clearer order.)
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27 -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
d0bf1df83c04 Re-wordwrap and reorder the .config->config.h sed script. (No real changes, just one command/line in a clearer order.)
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28 -e 't notset' \
d0bf1df83c04 Re-wordwrap and reorder the .config->config.h sed script. (No real changes, just one command/line in a clearer order.)
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29 -e 's/^CONFIG_\(.*\)=y.*/\1/' \
d0bf1df83c04 Re-wordwrap and reorder the .config->config.h sed script. (No real changes, just one command/line in a clearer order.)
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30 -e 't isset' \
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52e980b216d3 Convert non-bool config values (such as int) into config.h entries.
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31 -e 's/^CONFIG_\([^=]*\)=\(.*\)/#define CFG_\1 \2/p' \
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d0bf1df83c04 Re-wordwrap and reorder the .config->config.h sed script. (No real changes, just one command/line in a clearer order.)
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32 -e 'd' \
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33 -e ':notset' \
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34 -e 'h' \
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35 -e 's/.*/#define CFG_& 0/p' \
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36 -e 'g' \
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37 -e 's/.*/#define USE_&(...)/p' \
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38 -e 'd' \
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39 -e ':isset' \
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40 -e 'h' \
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41 -e 's/.*/#define CFG_& 1/p' \
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42 -e 'g' \
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43 -e 's/.*/#define USE_&(...) __VA_ARGS__/p' \
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44 $KCONFIG_CONFIG > generated/config.h || exit 1
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7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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47 echo "Extract configuration information from toys/*.c files..."
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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48 scripts/genconfig.sh
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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49
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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50 echo "Generate headers from toys/*/*.c..."
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51
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52 # Create a list of all the commands toybox can provide. Note that the first
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53 # entry is out of order on purpose (the toybox multiplexer command must be the
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54 # first element of the array). The rest must be sorted in alphabetical order
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7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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55 # for fast binary search.
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56
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db517206d752 Cosmetic tweak.
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57 echo -n "generated/newtoys.h "
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58
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59 echo "USE_TOYBOX(NEWTOY(toybox, NULL, TOYFLAG_STAYROOT))" > generated/newtoys.h
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60 sed -n -e 's/^USE_[A-Z0-9_]*(/&/p' toys/*/*.c \
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61 | sed 's/\(.*TOY(\)\([^,]*\),\(.*\)/\2 \1\2,\3/' | sort -k 1,1 \
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62 | sed 's/[^ ]* //' >> generated/newtoys.h
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63 sed -n -e 's/.*(NEWTOY(\([^,]*\), *\(\("[^"]*"[^,]*\)*\),.*/#define OPTSTR_\1\t\2/p' \
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0af2375a8ef8 More grep cleanup, and make OPTSTR_command macros for use with OLDTOY()
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64 generated/newtoys.h > generated/oldtoys.h
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65
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66 do_loudly $HOSTCC scripts/mkflags.c -o generated/mkflags || exit 1
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67
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68 echo -n "generated/flags.h "
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69
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70 # Process config.h and newtoys.h to generate FLAG_x macros. Note we must
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71 # always #define the relevant macro, even when it's disabled, because we
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72 # allow multiple NEWTOY() in the same C file. (When disabled the FLAG is 0,
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73 # so flags&0 becomes a constant 0 allowing dead code elimination.)
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74
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75 # Parse files through C preprocessor twice, once to get flags for current
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76 # .config and once to get flags for allyesconfig
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77 for I in A B
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78 do
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79 (
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80 # define macros and select header files with option string data
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a950dd960593 Cleanup i18n support (#ifdefectomy, move global init to process launch). Teach make.sh to emit "#define FLAG_x 0" for options inside disabled USE macros so we can unconditionally refer to them.
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81
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82 echo "#define NEWTOY(aa,bb,cc) aa $I bb"
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83 echo '#define OLDTOY(...)'
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84 if [ "$I" == A ]
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85 then
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86 cat generated/config.h
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87 else
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88 sed '/USE_.*([^)]*)$/s/$/ __VA_ARGS__/' generated/config.h
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89 fi
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90 cat generated/newtoys.h
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91
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92 # Run result through preprocessor, glue together " " gaps leftover from USE
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93 # macros, delete comment lines, print any line with a quoted optstring,
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94 # turn any non-quoted opstring (NULL or 0) into " " (because fscanf can't
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1c4c893d4e72 Fix header file generation to not be confused by empty (but non-NULL) option string.
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95 # handle "" with nothing in it, and mkflags uses that).
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96
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370f15d1ece1 Don't use $CC without $CROSS_COMPILE because $HOSTCC could be something else entirely.
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97 ) | ${CROSS_COMPILE}${CC} -E - | \
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98 sed -n -e 's/" *"//g;/^#/d;t clear;:clear;s/"/"/p;t;s/\( [AB] \).*/\1 " "/p'
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99
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100 # Sort resulting line pairs and glue them together into triplets of
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101 # command "flags" "allflags"
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102 # to feed into mkflags C program that outputs actual flag macros
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c86b1579c383 CLEANUP transitions require all the generated/flags.h stanzas always be present (even for commands disabled in the config) to avoid undefined symbol errors referencing FLAG_ macros.
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103 # If no pair (because command's disabled in config), use " " for flags
c86b1579c383 CLEANUP transitions require all the generated/flags.h stanzas always be present (even for commands disabled in the config) to avoid undefined symbol errors referencing FLAG_ macros.
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104 # so allflags can define the appropriate zero macros.
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105
1208
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106 done | sort | sed -n 's/ A / /;t pair;h;s/\([^ ]*\).*/\1 " "/;x;b single;:pair;h;n;:single;s/[^ ]* B //;H;g;s/\n/ /;p' |\
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107 generated/mkflags > generated/flags.h || exit 1
712
a950dd960593 Cleanup i18n support (#ifdefectomy, move global init to process launch). Teach make.sh to emit "#define FLAG_x 0" for options inside disabled USE macros so we can unconditionally refer to them.
Rob Landley <rob@landley.net>
parents: 705
diff changeset
108
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
109 # Extract global structure definitions and flag definitions from toys/*/*.c
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
110
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
111 function getglobals()
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
112 {
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
113 for i in toys/*/*.c
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
114 do
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
115 NAME="$(echo $i | sed 's@.*/\(.*\)\.c@\1@')"
1076
1c15ba60aa64 Switch flag generation from shell to C.
Rob Landley <rob@landley.net>
parents: 1074
diff changeset
116 DATA="$(sed -n -e '/^GLOBALS(/,/^)/b got;b;:got' \
1c15ba60aa64 Switch flag generation from shell to C.
Rob Landley <rob@landley.net>
parents: 1074
diff changeset
117 -e 's/^GLOBALS(/struct '"$NAME"'_data {/' \
1c15ba60aa64 Switch flag generation from shell to C.
Rob Landley <rob@landley.net>
parents: 1074
diff changeset
118 -e 's/^)/};/' -e 'p' $i)"
712
a950dd960593 Cleanup i18n support (#ifdefectomy, move global init to process launch). Teach make.sh to emit "#define FLAG_x 0" for options inside disabled USE macros so we can unconditionally refer to them.
Rob Landley <rob@landley.net>
parents: 705
diff changeset
119
1076
1c15ba60aa64 Switch flag generation from shell to C.
Rob Landley <rob@landley.net>
parents: 1074
diff changeset
120 [ ! -z "$DATA" ] && echo -e "// $i\n\n$DATA\n"
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
121 done
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
122 }
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
123
1172
db517206d752 Cosmetic tweak.
Rob Landley <rob@landley.net>
parents: 1149
diff changeset
124 echo -n "generated/globals.h "
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
125
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
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parents: 664
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126 GLOBSTRUCT="$(getglobals)"
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
127 (
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
128 echo "$GLOBSTRUCT"
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
129 echo
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
130 echo "extern union global_union {"
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
131 echo "$GLOBSTRUCT" | sed -n 's/struct \(.*\)_data {/ struct \1_data \1;/p'
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
132 echo "} this;"
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
133 ) > generated/globals.h
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
134
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
135 echo "generated/help.h"
1179
260cce6c3e35 Replace python help converter with C implementation.
Rob Landley <rob@landley.net>
parents: 1172
diff changeset
136 do_loudly $HOSTCC scripts/config2help.c -I . lib/xwrap.c lib/llist.c lib/lib.c \
260cce6c3e35 Replace python help converter with C implementation.
Rob Landley <rob@landley.net>
parents: 1172
diff changeset
137 -o generated/config2help && \
1194
855b706d10dc Use right config for single builds.
Rob Landley <rob@landley.net>
parents: 1179
diff changeset
138 generated/config2help Config.in $KCONFIG_CONFIG > generated/help.h || exit 1
674
7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate.
Rob Landley <rob@landley.net>
parents: 664
diff changeset
139
581
1e07220fd3b6 Probe available libraries to link --as-needed, avoiding "unknown libarary" errors.
Rob Landley <rob@landley.net>
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diff changeset
140 echo "Library probe..."
1e07220fd3b6 Probe available libraries to link --as-needed, avoiding "unknown libarary" errors.
Rob Landley <rob@landley.net>
parents: 572
diff changeset
141
653
2986aa63a021 Move commands into "posix", "lsb", and "other" menus/directories.
Rob Landley <rob@landley.net>
parents: 595
diff changeset
142 # We trust --as-needed to remove each library if we don't use any symbols
2986aa63a021 Move commands into "posix", "lsb", and "other" menus/directories.
Rob Landley <rob@landley.net>
parents: 595
diff changeset
143 # out of it, this loop is because the compiler has no way to ignore a library
2986aa63a021 Move commands into "posix", "lsb", and "other" menus/directories.
Rob Landley <rob@landley.net>
parents: 595
diff changeset
144 # that doesn't exist, so we have to detect and skip nonexistent libraries
2986aa63a021 Move commands into "posix", "lsb", and "other" menus/directories.
Rob Landley <rob@landley.net>
parents: 595
diff changeset
145 # for it.
2986aa63a021 Move commands into "posix", "lsb", and "other" menus/directories.
Rob Landley <rob@landley.net>
parents: 595
diff changeset
146
1428
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
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parents: 1343
diff changeset
147 > generated/optlibs.dat
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
148 for i in util crypt m resolv
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Rob Landley <rob@landley.net>
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diff changeset
149 do
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Rob Landley <rob@landley.net>
parents: 1343
diff changeset
150 echo "int main(int argc, char *argv[]) {return 0;}" | \
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
151 ${CROSS_COMPILE}${CC} $CFLAGS -xc - -o /dev/null -Wl,--as-needed -l$i > /dev/null 2>/dev/null &&
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
152 echo -l$i >> generated/optlibs.dat
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
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parents: 1343
diff changeset
153 done
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
154
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
155 echo -n "Compile toybox"
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
156 [ ! -z "$V" ] && echo
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
157
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
158 # Extract a list of toys/*/*.c files to compile from the data in $KCONFIG_CONFIG
581
1e07220fd3b6 Probe available libraries to link --as-needed, avoiding "unknown libarary" errors.
Rob Landley <rob@landley.net>
parents: 572
diff changeset
159
1428
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
160 # Get a list of C files in toys/* and wash it through sed to chop out the
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
161 # filename, convert - to _, and glue the result together into a new regex
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
162 # we we can feed to grep to match any one of them (whole word, not substring).
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
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parents: 1343
diff changeset
163
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
164 TOYFILES="^$(ls toys/*/*.c | sed -n 's@^.*/\(.*\)\.c$@\1@;s/-/_/g;H;${g;s/\n//;s/\n/$|^/gp}')\$"
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
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parents: 1343
diff changeset
165
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
166 # 1) Grab the XXX part of all CONFIG_XXX entries from KCONFIG
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
167 # 2) Sort the list, keeping only one of each entry.
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
168 # 3) Convert to lower case.
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
169 # 4) Remove any config symbol not recognized as a filename from step 1.
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
170 # 5) Add "toys/*/" prefix and ".c" suffix.
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
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parents: 1343
diff changeset
171
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
172 TOYFILES=$(sed -nre 's/^CONFIG_(.*)=y/\1/p' < "$KCONFIG_CONFIG" \
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
173 | sort -u | tr A-Z a-z | grep -E "$TOYFILES" | sed 's@\(.*\)@toys/\*/\1.c@')
233
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of
Rob Landley <rob@landley.net>
parents:
diff changeset
174
472
f59b4b6bde5e Add V=1 support to make.
Rob Landley <rob@landley.net>
parents: 364
diff changeset
175 do_loudly()
f59b4b6bde5e Add V=1 support to make.
Rob Landley <rob@landley.net>
parents: 364
diff changeset
176 {
1428
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
177 [ ! -z "$V" ] && echo "$@" || echo -n .
472
f59b4b6bde5e Add V=1 support to make.
Rob Landley <rob@landley.net>
parents: 364
diff changeset
178 "$@"
f59b4b6bde5e Add V=1 support to make.
Rob Landley <rob@landley.net>
parents: 364
diff changeset
179 }
f59b4b6bde5e Add V=1 support to make.
Rob Landley <rob@landley.net>
parents: 364
diff changeset
180
1428
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
181 BUILD="${CROSS_COMPILE}${CC} $CFLAGS -I . $OPTIMIZE"
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
182 FILES="$(ls lib/*.c) main.c $TOYFILES"
1451
5f9fbf75ad34 Old compilers complain about linker options passed with -c, so split out $LDOPTIMIZE.
Rob Landley <rob@landley.net>
parents: 1450
diff changeset
183 LINK="$LDOPTIMIZE -o toybox_unstripped -Wl,--as-needed $(cat generated/optlibs.dat)"
1428
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
184
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
185 # This is a parallel version of: do_loudly $BUILD $FILES $LINK || exit 1
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
186
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
187 rm -f generated/*.o
1446
f46ccbcf3f13 Fix parallel make not always catching errors before link time.
Rob Landley <rob@landley.net>
parents: 1428
diff changeset
188 PENDING=
1428
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
189 for i in $FILES
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
190 do
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
191 # build each generated/*.o file in parallel
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
192
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
193 X=${i/lib\//lib_}
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
194 X=${X##*/}
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
195 do_loudly $BUILD -c $i -o generated/${X%%.c}.o &
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
196
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
197 # ratelimit to $CPUS many parallel jobs, detecting errors
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
198
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
199 while true
e66fb422b78a Parallelize the build. (set CPUS=1 to force single processor build, or another number to override processor count autodetect.)
Rob Landley <rob@landley.net>
parents: 1343
diff changeset
200 do
1446
f46ccbcf3f13 Fix parallel make not always catching errors before link time.
Rob Landley <rob@landley.net>
parents: 1428
diff changeset
201 PENDING="$(echo $PENDING $(jobs -rp) | tr ' ' '\n' | sort -u)"
1458
4428d64c0c40 Don't hang for $CPUS=1.
Rob Landley <rob@landley.net>
parents: 1454
diff changeset
202 [ $(echo -n "$PENDING" | wc -l) -lt "$CPUS" ] && break;
1446
f46ccbcf3f13 Fix parallel make not always catching errors before link time.
Rob Landley <rob@landley.net>
parents: 1428
diff changeset
203
1454
ab91ee85afbd More parallel build tweaks.
Rob Landley <rob@landley.net>
parents: 1451
diff changeset
204 wait $(echo "$PENDING" | head -n 1) || exit 1
1446
f46ccbcf3f13 Fix parallel make not always catching errors before link time.
Rob Landley <rob@landley.net>
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205 PENDING="$(echo "$PENDING" | tail -n +2)"
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206 done
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207 done
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208
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209 # wait for all background jobs, detecting errors
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210
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f46ccbcf3f13 Fix parallel make not always catching errors before link time.
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211 for i in $PENDING
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212 do
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213 wait $i || exit 1
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214 done
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215
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216 do_loudly $BUILD generated/*.o $LINK || exit 1
512
9bcc288a1c54 Fix from Georgi Chorbadzhiyski to make cross compiling more robust.
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217 do_loudly ${CROSS_COMPILE}${STRIP} toybox_unstripped -o toybox || exit 1
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6df3ac5165fa The "strip" in gcc 4.4 doesn't set the executable bit on its output, despite what SUSv4 says it should do, so cope with buggy FSF tools.
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218 # gcc 4.4's strip command is buggy, and doesn't set the executable bit on
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219 # its output the way SUSv4 suggests it do so.
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f59b4b6bde5e Add V=1 support to make.
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220 do_loudly chmod +x toybox || exit 1
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221 echo