Merging r261384:

[oota-llvm.git] / utils / makellvm

diff --git a/utils/makellvm b/utils/makellvm
index 553ea5379f9c01c8d34bbfe5a82c14780bdeb145..ae77712941a27b4274c9bc0018ecd97c544d56dc 100755 (executable)
--- a/utils/makellvm
+++ b/utils/makellvm
@@ -2,12 +2,17 @@
 
 set pstatus = 0
 onintr cleanup
-alias usage 'echo "USAGE: $0:t [-h] [-n] [gmake-flag...] [VAR=...] [toolname (default: opt)]"; set pstatus = 1; goto cleanup'
+alias usage 'echo "USAGE: $0:t [-h] [-n] [-obj obj-root] [gmake-flags] [VAR=...] [toolname (default: opt)]"; set pstatus = 1; goto cleanup'
 
 set EXEC = opt
 set GMAKE_OPTS = ""
 set DEBUG = 0
 
+## Search path for automatically finding the obj-root to use.
+## Note: The src root directory ${LLVMDIR} will be prepended to this path later.
+## 
+set OBJROOTDIRLIST = ( )
+
 set doit = 1
 unset options_done
 while ( !( $?options_done ) && ($#argv > 0))
@@ -19,6 +24,13 @@ while ( !( $?options_done ) && ($#argv > 0))
            shift argv; set MFILE = $argv[1]; shift argv; breaksw
        case -n :
            set doit = 0; shift argv; breaksw
+       case -obj :
+           set OBJROOT = $argv[2]; shift argv; shift argv
+           if (! -d "$OBJROOT") then
+               echo "FATAL: Illegal obj-root directory ${OBJROOT}"
+               exit 1
+           endif
+           breaksw
        case -d :
            set doit = 0; set DEBUG = 1; shift argv; breaksw
        case -* :
@@ -72,15 +84,54 @@ if ($DEBUG) then
 endif
 
 if ($#LLVMDIR == 0 || ! -d "$LLVMDIR") then
-    echo "Unable to find LLVM obj-root directory or directory is invalid."
+    echo "Unable to find LLVM src-root directory or directory is invalid."
     echo "Are you within a valid LLVM directory for running gmake?"
     exit 1
 endif
 
-set CMD = "gmake $GMAKE_OPTS && (cd $LLVMDIR/tools/$EXEC && gmake $GMAKE_OPTS)"
+## Try to determine the obj-root directory automatically if not specified
+## 
+set OBJROOTDIRLIST = ( ${LLVMDIR} $OBJROOTDIRLIST )    ## add src dir
+if ($?OBJROOT == 0) then
+    ## Try to determine object root directory by looking for Makefile.config
+    foreach objdir ( $OBJROOTDIRLIST )
+       if (-f "${objdir}/Makefile.config") then
+           set OBJROOT = ${objdir}
+            break
+        endif
+    end
+    if ($?OBJROOT == 0) then
+       echo "FATAL: Could not choose an obj-root directory from these choices:"
+       echo "       ${OBJROOTDIRLIST}."
+       echo "       You can specify it explicitly using '-obj obj-root'."
+       exit 1
+    endif
+    echo "Using OBJ-ROOT = ${OBJROOT} (specify '-obj obj-root' to override)."
+endif
+if (${OBJROOT} == ${LLVMDIR}) then
+    # run make in the source directory itself
+    set BUILDROOT = .
+else
+    # run make in the in the obj-root tree, in the directory for $cwd
+    set SRCROOT = `sh -c "cd $LLVMDIR; pwd | sed 's/\//\\\//g'"` 
+    set CURSRCDIR = `echo $cwd | sed -e "s/${SRCROOT}//"`
+    set BUILDROOT = ${OBJROOT}/${CURSRCDIR}
+    unset SRCROOT CURSRCDIR
+endif
+if ($DEBUG) then
+    echo "DEBUG: BUILDROOT = $BUILDROOT"
+endif
+if (! -d $BUILDROOT) then
+    echo "FATAL: Invalid build directory: ${BUILDROOT}"
+    exit 1
+endif
+cd $BUILDROOT 
+
+set CMD = "make $GMAKE_OPTS && (cd $LLVMDIR/tools/$EXEC && make $GMAKE_OPTS)"
 
 if ($doit == 1) then
     csh -f -c "$CMD"
+    set pstatus = $?
 else
     echo '(NOT EXECUTING) COMMAND:'
     echo "  $CMD"