New common interface for backends to use

[oota-llvm.git] / utils / makellvm

diff --git a/utils/makellvm b/utils/makellvm
index ad92e5ac64d900e04ed33433fa3f93a00a9f3b89..25c812afdfa573dfef070eeb1de29dca26349beb 100755 (executable)
--- a/utils/makellvm
+++ b/utils/makellvm
@@ -1,16 +1,81 @@
 #!/bin/csh -f
 
-       ## LLVMDIR is simply the directory where this script resides!
-set THISEXEC = $0              ## cannot use :h on $0 for some reason
-set LLVMDIR = $THISEXEC:h
+set pstatus = 0
+onintr cleanup
+alias usage 'echo "USAGE: $0:t [-h] [-n] [gmake-flag...] [VAR=...] [toolname (default: opt)]"; set pstatus = 1; goto cleanup'
+
 set EXEC = opt
+set GMAKE_OPTS = ""
+
+set doit = 1
+unset options_done
+while ( !( $?options_done ) && ($#argv > 0))
+    switch ($argv[1])
+       case -h :
+           usage
+       case -f :
+           if ($#argv < 2) usage
+           shift argv; set MFILE = $argv[1]; shift argv; breaksw
+       case -n :
+           set doit = 0; shift argv; breaksw
+       case -* :
+           set GMAKE_OPTS = ( $GMAKE_OPTS $argv[1] ); shift argv; breaksw
+       default :
+           set optarg = `echo -n $argv[1] | sed 's/^[^=]*$//'`
+           if ($#optarg) then
+               set GMAKE_OPTS = ( $GMAKE_OPTS $optarg )
+               shift argv
+           else
+               set options_done
+           endif
+            breaksw
+    endsw
+end
 
+if ($#argv > 1) then
+    echo 'ERROR: More than one tool is not supported by "makellvm"'
+    usage
+endif
 if ($#argv > 0) then
-    if ($argv[1] == "-h") then
-       echo 'USAGE: makellvm [toolname]   (toolname defaults to "opt").'
-       exit 0
-    endif
     set EXEC = $argv[1]
 endif
 
-gnumake && (cd $LLVMDIR/tools/$EXEC && gnumake)
+## Compute LLVMDIR: the root of the current LLVM tree.
+## It is recorded in the variable LEVEL in Makefile, to compute it
+## 
+if (! $?MFILE) then
+    if (-f GNUmakefile) then
+       set MFILE = GNUmakefile
+    else if (-f makefile) then
+       set MFILE = makefile
+    else
+       set MFILE = Makefile
+    endif
+endif
+if (! -f $MFILE) then
+    echo "Missing or invalid makefile: $MFILE"
+    exit 1
+endif
+
+set LLVMDIR = `awk '/LEVEL[    ]*=/ {print $NF}' $MFILE`
+
+if ($?LLVMDIR == 0 || ! -d $LLVMDIR) then
+    echo "Unable to find LEVEL or LEVEL is invalid ($LEVEL)"
+    exit 1
+endif
+
+set CMD = "gmake $GMAKE_OPTS && (cd $LLVMDIR/tools/$EXEC && gmake $GMAKE_OPTS)"
+
+if ($doit == 1) then
+    csh -f -c "$CMD"
+else
+    echo '(NOT EXECUTING) COMMAND:'
+    echo "  $CMD"
+endif
+
+
+#=========================================================
+# CODE TO BE EXECUTED IF INTERRUPT IS RECEIVED
+#=========================================================
+cleanup:
+    exit($pstatus)