Text file src/make.rc

     1  #!/bin/rc -e
     2  # Copyright 2012 The Go Authors. All rights reserved.
     3  # Use of this source code is governed by a BSD-style
     4  # license that can be found in the LICENSE file.
     5  
     6  # See golang.org/s/go15bootstrap for an overview of the build process.
     7  
     8  # Environment variables that control make.rc:
     9  #
    10  # GOHOSTARCH: The architecture for host tools (compilers and
    11  # binaries).  Binaries of this type must be executable on the current
    12  # system, so the only common reason to set this is to set
    13  # GOHOSTARCH=386 on an amd64 machine.
    14  #
    15  # GOARCH: The target architecture for installed packages and tools.
    16  #
    17  # GOOS: The target operating system for installed packages and tools.
    18  #
    19  # GO_GCFLAGS: Additional go tool compile arguments to use when
    20  # building the packages and commands.
    21  #
    22  # GO_LDFLAGS: Additional go tool link arguments to use when
    23  # building the commands.
    24  #
    25  # CGO_ENABLED: Controls cgo usage during the build. Set it to 1
    26  # to include all cgo related files, .c and .go file with "cgo"
    27  # build directive, in the build. Set it to 0 to ignore them.
    28  
    29  rfork e
    30  if(! test -f run.rc){
    31  	echo 'make.rc must be run from $GOROOT/src' >[1=2]
    32  	exit wrongdir
    33  }
    34  
    35  # Clean old generated file that will cause problems in the build.
    36  rm -f ./runtime/runtime_defs.go
    37  
    38  # Determine the host compiler toolchain.
    39  eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
    40  
    41  vflag=()
    42  if(~ $1 -v) {
    43  	vflag=(-v)
    44  	shift
    45  }
    46  
    47  fn nogoenv {
    48  	GO111MODULE=off GOENV=off GOOS=() GOARCH=() GOEXPERIMENT=() GOFLAGS=() $*
    49  }
    50  
    51  bootgo = 1.20.6
    52  GOROOT = `{cd .. && pwd}
    53  goroot_bootstrap_set = 'true'
    54  if(! ~ $#GOROOT_BOOTSTRAP 1){
    55  	goroot_bootstrap_set = 'false'
    56  	GOROOT_BOOTSTRAP = $home/go1.4
    57  	for(d in sdk/go$bootgo go$bootgo)
    58  		if(test -d $home/$d)
    59  			GOROOT_BOOTSTRAP = $home/$d
    60  }
    61  for(p in $path){
    62  	if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    63  		if(go_exe = `{path=$p whatis go}){
    64  			goroot = `{GOROOT=() nogoenv $go_exe env GOROOT}
    65  			if(! ~ $goroot $GOROOT){
    66  				if(~ $goroot_bootstrap_set 'true'){
    67  					echo 'WARNING: '$GOROOT_BOOTSTRAP'/bin/go does not exist, found '$go_exe' from env' >[1=2]
    68  					echo 'WARNING: set '$goroot' as GOROOT_BOOTSTRAP' >[1=2]
    69  				}
    70  				GOROOT_BOOTSTRAP = $goroot
    71  			}
    72  		}
    73  	}
    74  }
    75  if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    76  	echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
    77  	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go '$bootgo'.' >[1=2]
    78  	exit bootstrap
    79  }
    80  if(~ $GOROOT_BOOTSTRAP $GOROOT){
    81  	echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
    82  	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go '$bootgo'.' >[1=2]
    83  	exit bootstrap
    84  }
    85  
    86  # Get the exact bootstrap toolchain version to help with debugging.
    87  # We clear GOOS and GOARCH to avoid an ominous but harmless warning if
    88  # the bootstrap doesn't support them.
    89  GOROOT_BOOTSTRAP_VERSION=`{nogoenv $GOROOT_BOOTSTRAP/bin/go version | sed 's/go version //'}
    90  echo 'Building Go cmd/dist using '$GOROOT_BOOTSTRAP'. ('$"GOROOT_BOOTSTRAP_VERSION')'
    91  if(~ $#vflag 1)
    92  	echo cmd/dist
    93  GOROOT=$GOROOT_BOOTSTRAP nogoenv $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
    94  
    95  eval `{./cmd/dist/dist env -9}
    96  if(~ $#vflag 1)
    97  	echo
    98  
    99  if(~ $1 --dist-tool){
   100  	# Stop after building dist tool.
   101  	mkdir -p $GOTOOLDIR
   102  	if(! ~ $2 '')
   103  		cp cmd/dist/dist $2
   104  	mv cmd/dist/dist $GOTOOLDIR/dist
   105  	exit
   106  }
   107  
   108  # Run dist bootstrap to complete make.bash.
   109  # Bootstrap installs a proper cmd/dist, built with the new toolchain.
   110  # Throw ours, built with the bootstrap toolchain, away after bootstrap.
   111  ./cmd/dist/dist bootstrap -a $vflag $*
   112  rm -f ./cmd/dist/dist
   113  
   114  # DO NOT ADD ANY NEW CODE HERE.
   115  # The bootstrap+rm above are the final step of make.rc.
   116  # If something must be added, add it to cmd/dist's cmdbootstrap,
   117  # to avoid needing three copies in three different shell languages
   118  # (make.bash, make.bat, make.rc).
   119  

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