| #! /bin/sh |
| |
| # This script is used when compiling Classpath with gcj. The idea is |
| # to compile one package at a time, and only recompile packages when |
| # actually required. |
| |
| # We build java->class by package so we need to know what .java files |
| # correspond to what package. |
| |
| # We have a .stamp file for each package; this is the makefile target. |
| # We also have a .list file for each package, which lists all the |
| # input files in that package. |
| |
| # gen-classlist.sh makes a list of all the .java files we are going to compile. |
| |
| # This script generates Makefile.deps, which looks like this: |
| # |
| # java/awt/AWTUtilities.class: lists/java-awt.stamp |
| # lists/java-awt.list: /home/aph/gcc/gcc/libjava/classpath/gnu/java/awt/AWTUtilities.java |
| # java/awt/BitMaskExtent.class: lists/java-awt.stamp |
| # lists/java-awt.list: /home/aph/gcc/gcc/libjava/classpath/gnu/java/awt/BitMaskExtent.java |
| # java/awt/BitwiseXORComposite.class: lists/java-awt.stamp |
| # lists/java-awt.list: /home/aph/gcc/gcc/libjava/classpath/gnu/java/awt/BitwiseXORComposite.java |
| |
| echo "Splitting for gcj" |
| rm -f Makefile.dtmp > /dev/null 2>&1 |
| test -d lists || mkdir lists |
| # Much more efficient to do processing outside the loop... |
| # The first expression computes the .class file name. |
| # We only want the first three package components, and |
| # we want them separated by '-'; this is the remaining expressions. |
| sed -e 's, \(.*\)[.]java$, \1.java \1.class,' \ |
| -e 's,^\([^/ ]*\)/\([^/ ]*\) ,\1-\2 ,' \ |
| -e 's,^\([^/ ]*\)/\([^/ ]*\)/\([^/ ]*\) ,\1-\2-\3 ,' \ |
| -e 's,^\([^/ ]*\)/\([^/ ]*\)/\([^/ ]*\)/[^ ]* ,\1-\2-\3 ,' \ |
| classes.2 | |
| while read pkg dir file f2; do |
| list=lists/$pkg |
| echo "$dir/$file" >> ${list}.list.1 |
| |
| echo "$f2: ${list}.stamp" >> Makefile.dtmp |
| echo "${list}.list: $dir/$file" >> Makefile.dtmp |
| done |
| |
| # Only update a .list file if it changed. |
| for file in lists/*.list.1; do |
| real=`echo "$file" | sed -e 's/.1$//'` |
| if cmp -s $real $file; then |
| rm $file |
| else |
| mv $file $real |
| fi |
| done |
| |
| # If we were run we must update Makefile.deps. |
| mv Makefile.dtmp Makefile.deps |