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  # GOROOT_FINAL: The expected final Go root, baked into binaries.
    11  # The default is the location of the Go tree during the build.
    12  #
    13  # GOHOSTARCH: The architecture for host tools (compilers and
    14  # binaries).  Binaries of this type must be executable on the current
    15  # system, so the only common reason to set this is to set
    16  # GOHOSTARCH=386 on an amd64 machine.
    17  #
    18  # GOARCH: The target architecture for installed packages and tools.
    19  #
    20  # GOOS: The target operating system for installed packages and tools.
    21  #
    22  # GO_GCFLAGS: Additional go tool compile arguments to use when
    23  # building the packages and commands.
    24  #
    25  # GO_LDFLAGS: Additional go tool link arguments to use when
    26  # building the commands.
    27  #
    28  # CGO_ENABLED: Controls cgo usage during the build. Set it to 1
    29  # to include all cgo related files, .c and .go file with "cgo"
    30  # build directive, in the build. Set it to 0 to ignore them.
    31  
    32  rfork e
    33  if(! test -f run.rc){
    34  	echo 'make.rc must be run from $GOROOT/src' >[1=2]
    35  	exit wrongdir
    36  }
    37  
    38  # Clean old generated file that will cause problems in the build.
    39  rm -f ./runtime/runtime_defs.go
    40  
    41  # Determine the host compiler toolchain.
    42  eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
    43  
    44  vflag=()
    45  if(~ $1 -v) {
    46  	vflag=(-v)
    47  	shift
    48  }
    49  
    50  fn nogoenv {
    51  	GO111MODULE=off GOENV=off GOOS=() GOARCH=() GOEXPERIMENT=() GOFLAGS=() $*
    52  }
    53  
    54  bootgo = 1.17.13
    55  GOROOT = `{cd .. && pwd}
    56  goroot_bootstrap_set = 'true'
    57  if(! ~ $#GOROOT_BOOTSTRAP 1){
    58  	goroot_bootstrap_set = 'false'
    59  	GOROOT_BOOTSTRAP = $home/go1.4
    60  	for(d in sdk/go$bootgo go$bootgo)
    61  		if(test -d $home/$d)
    62  			GOROOT_BOOTSTRAP = $home/$d
    63  }
    64  for(p in $path){
    65  	if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    66  		if(go_exe = `{path=$p whatis go}){
    67  			goroot = `{GOROOT=() nogoenv $go_exe env GOROOT}
    68  			if(! ~ $goroot $GOROOT){
    69  				if(~ $goroot_bootstrap_set 'true'){
    70  					echo 'WARNING: '$GOROOT_BOOTSTRAP'/bin/go does not exist, found '$go_exe' from env' >[1=2]
    71  					echo 'WARNING: set '$goroot' as GOROOT_BOOTSTRAP' >[1=2]
    72  				}
    73  				GOROOT_BOOTSTRAP = $goroot
    74  			}
    75  		}
    76  	}
    77  }
    78  if(! test -x $GOROOT_BOOTSTRAP/bin/go){
    79  	echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
    80  	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go '$bootgo'.' >[1=2]
    81  	exit bootstrap
    82  }
    83  if(~ $GOROOT_BOOTSTRAP $GOROOT){
    84  	echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
    85  	echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go '$bootgo'.' >[1=2]
    86  	exit bootstrap
    87  }
    88  
    89  # Get the exact bootstrap toolchain version to help with debugging.
    90  # We clear GOOS and GOARCH to avoid an ominous but harmless warning if
    91  # the bootstrap doesn't support them.
    92  GOROOT_BOOTSTRAP_VERSION=`{nogoenv $GOROOT_BOOTSTRAP/bin/go version | sed 's/go version //'}
    93  echo 'Building Go cmd/dist using '$GOROOT_BOOTSTRAP'. ('$"GOROOT_BOOTSTRAP_VERSION')'
    94  if(~ $#vflag 1)
    95  	echo cmd/dist
    96  GOROOT=$GOROOT_BOOTSTRAP nogoenv $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
    97  
    98  eval `{./cmd/dist/dist env -9}
    99  if(~ $#vflag 1)
   100  	echo
   101  
   102  if(~ $1 --dist-tool){
   103  	# Stop after building dist tool.
   104  	mkdir -p $GOTOOLDIR
   105  	if(! ~ $2 '')
   106  		cp cmd/dist/dist $2
   107  	mv cmd/dist/dist $GOTOOLDIR/dist
   108  	exit
   109  }
   110  
   111  # Run dist bootstrap to complete make.bash.
   112  # Bootstrap installs a proper cmd/dist, built with the new toolchain.
   113  # Throw ours, built with the bootstrap toolchain, away after bootstrap.
   114  ./cmd/dist/dist bootstrap -a $vflag $*
   115  rm -f ./cmd/dist/dist
   116  
   117  # DO NOT ADD ANY NEW CODE HERE.
   118  # The bootstrap+rm above are the final step of make.rc.
   119  # If something must be added, add it to cmd/dist's cmdbootstrap,
   120  # to avoid needing three copies in three different shell languages
   121  # (make.bash, make.bat, make.rc).
   122  

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