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authorRob Landley <rob@landley.net>2008-01-19 17:08:39 -0600
committerRob Landley <rob@landley.net>2008-01-19 17:08:39 -0600
commit2896480c4918f2accccb8301bec457a7bff7377e (patch)
tree622527b0fcb9b5ed9d8b7fb50db316dc00111b2c /scripts/make.sh
parent58ecc3e589c2edc0ef4f33d4419b0b2e7ac6a83d (diff)
downloadtoybox-2896480c4918f2accccb8301bec457a7bff7377e.tar.gz
Zap toys/Config.in and instead create generated/Config.in from contents of
toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also convert more of Makefile into a thin wrapper around shell scripts that actually do the work. (Makefile is only still there for the user interface.)
Diffstat (limited to 'scripts/make.sh')
-rwxr-xr-xscripts/make.sh56
1 files changed, 56 insertions, 0 deletions
diff --git a/scripts/make.sh b/scripts/make.sh
new file mode 100755
index 00000000..6cdd01a8
--- /dev/null
+++ b/scripts/make.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+# Grab default values for $CFLAGS and such.
+
+source ./configure
+
+echo "Extract configuration information from toys/*.c files."
+scripts/genconfig.sh
+
+# Only recreate generated/help.h if python is installed
+if [ ! -z "$(which python)" ] && [ ! -z "$(grep 'CONFIG_HELP=y' .config)" ]
+then
+ echo "Extract help text from Config.in."
+ scripts/config2help.py Config.in > generated/help.h || exit 1
+fi
+
+echo "Make generated/config.h from .config."
+
+# This long and roundabout sed invocation is to make old versions of sed happy.
+# New ones have '\n' so can replace one line with two without all the branches
+# and tedious mucking about with hold space.
+
+sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
+ -e 't notset' -e 'b tryisset' -e ':notset' \
+ -e 'h' -e 's/.*/#define CFG_& 0/p' \
+ -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
+ -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
+ -e 'h' -e 's/.*/#define CFG_& 1/p' \
+ -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' .config > \
+ generated/config.h || exit 1
+
+#for i in $(echo toys/*.c | sort)
+#do
+ # Grab the function command names
+ # NAME=$(echo $i | sed -e 's@toys/@@' -e 's@\.c@@')
+ #sed -n '/struct '$NAME'_command {/,/};/p' $i \
+ # >> generated/globals_big.h
+ # echo "struct ${NAME}_command;" >> generated/globals.h
+#done
+
+# Extract a list of toys/*.c files to compile from the data in ".config" with
+# sed, sort, and tr:
+
+# 1) Grab the XXX part of all CONFIG_XXX entries, removing everything after the
+# second underline
+# 2) Sort the list, keeping only one of each entry.
+# 3) Convert to lower case.
+# 4) Remove toybox itself from the list (as that indicates global symbols).
+# 5) Add "toys/" prefix and ".c" suffix.
+
+TOYFILES=$(cat .config | sed -nre 's/^CONFIG_(.*)=y/\1/;t skip;b;:skip;s/_.*//;p' | sort -u | tr A-Z a-z | grep -v '^toybox$' | sed 's@\(.*\)@toys/\1.c@' )
+
+echo "Compile toybox..."
+
+$DEBUG $CC $CFLAGS -I . -o toybox_unstripped $OPTIMIZE main.c lib/*.c $TOYFILES
+$DEBUG $STRIP toybox_unstripped -o toybox