make

   1 #!/bin/sh
   2
   3 # stolen from ffmpeg configure like a pig
   4 # this is brutal and stupid... then easy and explicit
   5
   6 # Prevent locale nonsense from breaking basic text processing.
   7 LC_ALL=C
   8 export LC_ALL
   9
  10 #-------------------------------------------------------------------------------
  11 #uppercase S tells gcc assembler to run the pre-preprocessor
  12 #lowercase s tells gcc assembler _NOT_ to run the pre-preprocessor
  13 #
  14 ulinux_target_arch_asm_srcs='
  15     ulinux/arch/sysc.S
  16     ulinux/arch/utils/endian.S
  17 '
  18
  19 ulinux_c_srcs='
  20     ulinux/utils/mem.c
  21     ulinux/utils/ascii/string/vsprintf.c
  22 '
  23 #-------------------------------------------------------------------------------
  24
  25
  26 #-------------------------------------------------------------------------------
  27 lnanohttp_bin_ulinux_objs='
  28     sysc.o
  29     endian.o
  30     mem.o
  31     vsprintf.o
  32 '
  33 lnanohttp_bin_srcs='
  34     lnanohttp.c
  35 '
  36 #-------------------------------------------------------------------------------
  37
  38
  39 clean_do(){
  40     files="
  41         $lnanohttp_bin_ulinux_objs
  42     "
  43
  44     for src_file in $lnanohttp_bin_srcs
  45     do
  46         obj=${src_file%.c}
  47         obj=${obj}.o
  48         files="$obj $files"
  49     done
  50
  51     rm -f $files
  52     rm -f ulinux/arch
  53     rmdir ulinux
  54     exit 0
  55 }
  56
  57 ################################################################################
  58
  59 # find source path
  60 if test -f make; then
  61     src_path=.
  62 else
  63     src_path=$(cd $(dirname "$0"); pwd)
  64     echo "$src_path" | grep -q '[[:blank:]]' &&
  65         die "Out of tree builds are impossible with whitespace in source path."
  66     test -e "$src_path/config.h" &&
  67         die "Out of tree builds are impossible with config.h in source dir."
  68 fi
  69
  70 is_in(){
  71     value=$1
  72     shift
  73     for var in $*; do
  74         [ $var = $value ] && return 0
  75     done
  76     return 1
  77 }
  78
  79 append(){
  80     var=$1
  81     shift
  82     eval "$var=\"\$$var $*\""
  83 }
  84
  85 die(){
  86     echo "$0"
  87     exit 1
  88 }
  89
  90 die_unknown(){
  91     echo "Unknown option \"$1\"."
  92     echo "See $0 --help for available options."
  93     exit 1
  94 }
  95
  96 set_default(){
  97     for opt; do
  98         eval : \${$opt:=\$${opt}_default}
  99     done
 100 }
 101
 102 CMDLINE_SET='
 103     arch
 104     asm
 105     cc
 106     bin_ccld_tmpl
 107 '
 108
 109 #command line, set defaults
 110 arch_default=$(uname -m | sed -e s/i.86/x86/ -e s/parisc64/parisc/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/ -e s/sh.*/sh/)
 111 asm_default='gcc -c'
 112 cc_default='gcc -Wall -Wextra -Wno-missing-field-initializers -c -fpic -O0'
 113 bin_ccld_tmpl_default="ld -Bstatic -nostdlib \$objects $(gcc -print-libgcc-file-name)"
 114
 115 #(tinycc + binutils) toolchain
 116 ##asm_default='as'
 117 ##cc_default='/home/sylvain/local/tinycc/bin/tcc -c'
 118 ##bin_ccld_tmpl_default="ld \$objects"
 119
 120 set_default $CMDLINE_SET
 121
 122 show_help(){
 123     cat <<EOF
 124 Usage: make [options] [operations]
 125
 126 Operations: [default is to build the http server binary]:
 127   clean                    clean build products
 128
 129
 130 Options: [defaults in brackets after descriptions]
 131
 132 Help options:
 133   --help                   print this message
 134
 135 Advanced options (experts only):
 136   --arch=ARCH                   use ulinux target ARCH [$arch_default]
 137   --asm=ASM                     use target arch assembler command line ASM [$asm_default]
 138   --cc=CC                       use target arch C compiler command line CC [$cc_default]
 139   --bin-ccld-tmpl=BIN_CCLD_TMPL use linker command line template BIN_CCLD_TMPL for target arch binary [$bin_ccld_tmpl_default]
 140 EOF
 141   exit 0
 142 }
 143
 144 for opt do
 145     optval="${opt#*=}"
 146     case "$opt" in
 147         clean) clean_do
 148         ;;
 149         --help|-h) show_help
 150         ;;
 151         *)
 152             optname="${opt%%=*}"
 153             optname="${optname#--}"
 154             optname=$(echo "$optname" | sed 's/-/_/g')
 155             if is_in $optname $CMDLINE_SET; then
 156                 eval $optname='$optval'
 157             elif is_in $optname $CMDLINE_APPEND; then
 158                 append $optname "$optval"
 159             else
 160                 die_unknown $opt
 161             fi
 162         ;;
 163     esac
 164 done
 165
 166
 167 #-------------------------------------------------------------------------------
 168 #configure our ultra-thin linux user API abstraction layer
 169 rm -f ulinux/arch
 170 mkdir -p ulinux
 171 ln -f -s $src_path/ulinux/archs/$arch ulinux/arch
 172 #-------------------------------------------------------------------------------
 173
 174
 175 #-------------------------------------------------------------------------------
 176 #assemble src files
 177 target_arch_asm_srcs="
 178         $ulinux_target_arch_asm_srcs
 179 "
 180
 181 for src_file in $target_arch_asm_srcs
 182 do
 183     obj=${src_file%.S}
 184     obj=${obj}.o
 185     echo ASM $src_file
 186     $asm -o $(basename $obj) $src_file
 187 done
 188 #-------------------------------------------------------------------------------
 189
 190
 191 #-------------------------------------------------------------------------------
 192 #C compile src files
 193 c_srcs="
 194         $ulinux_c_srcs
 195         $lnanohttp_bin_srcs
 196 "
 197 for src_file in $c_srcs
 198 do
 199     obj=${src_file%.c}
 200     obj=${obj}.o
 201     echo CC $src_file
 202     $cc -o $(basename $obj) -I./ -I$src_path $src_path/$src_file
 203     c_objs="$obj $c_objs"
 204 done
 205 #-------------------------------------------------------------------------------
 206
 207
 208 #-------------------------------------------------------------------------------
 209 #link the lnanohttp binary
 210 for src_file in $lnanohttp_bin_srcs
 211 do
 212     obj=${src_file%.c}
 213     obj=${obj}.o
 214     lnanohttp_bin_objs="$obj $lnanohttp_bin_objs"
 215 done
 216 lnanohttp_bin_objs="$lnanohttp_bin_objs $lnanohttp_bin_ulinux_objs"
 217
 218 echo BIN_CCLD lnanohttp
 219 #resolve the template
 220 objects=$lnanohttp_bin_objs
 221 eval bin_ccld=\"$bin_ccld_tmpl\"
 222 $bin_ccld  -o lnanohttp
 223 #-------------------------------------------------------------------------------