Shared libraries

- Also makes shared libraries (linked binaries will be smaller).
- Installed binaries and libraries will be stripped.
- Fixed some minor inconsistencies which resulted in not optimized executables (like gpiod).

diff --git a/Makefile b/Makefile
index 2cfc4b813530725eedc91cf1dae26a38a87a2fdd..d5cf15c7ed41d2e6281cdcfcd834f350d6d35256 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,18 +1,22 @@
 #
-CC     = gcc
-AR      = ar
-RANLIB  = ranlib
-SIZE    = size
+CC       = gcc
+AR       = ar
+RANLIB   = ranlib
+SIZE     = size
+SHLIB    = gcc -shared
+STRIPLIB = strip --strip-unneeded
 
 CFLAGS += -O3 -Wall
 
-LIB1     = libpigpio.a
+LIB1     = libpigpio.so
+LIB1_ST  = libpigpio.a
 OBJ1     = pigpio.o command.o
 
-LIB2     = libpigpiod_if.a
+LIB2     = libpigpiod_if.so
+LIB2_ST  = libpigpiod_if.a
 OBJ2     = pigpiod_if.o command.o
 
-LIB      = $(LIB1) $(LIB2)
+LIB      = $(LIB1) $(LIB1_ST) $(LIB2) $(LIB2_ST)
 
 ALL     = $(LIB) x_pigpio x_pigpiod_if pig2vcd pigpiod pigs
 
@@ -22,48 +26,62 @@ LL2      = -L. -lpigpiod_if -lpthread -lrt
 
 all:   $(ALL)
 
+pigpio.o: pigpio.c pigpio.h command.h custom.cext
+       $(CC) $(CFLAGS) -fpic -c -o pigpio.o pigpio.c
+
+pigpiod_if.o: pigpiod_if.c pigpio.h command.h pigpiod_if.h
+       $(CC) $(CFLAGS) -fpic -c -o pigpiod_if.o pigpiod_if.c
+
+command.o: command.c pigpio.h command.h
+       $(CC) $(CFLAGS) -fpic -c -o command.o command.c
+
 x_pigpio:      x_pigpio.o $(LIB1)
-       $(CC) -o x_pigpio x_pigpio.c $(LL1)
+       $(CC) -o x_pigpio x_pigpio.o $(LL1)
 
 x_pigpiod_if:  x_pigpiod_if.o $(LIB2)
-       $(CC) -o x_pigpiod_if x_pigpiod_if.c $(LL2)
+       $(CC) -o x_pigpiod_if x_pigpiod_if.o $(LL2)
 
 pigpiod:       pigpiod.o $(LIB1)
-       $(CC) -o pigpiod pigpiod.c $(LL1)
+       $(CC) -o pigpiod pigpiod.o $(LL1)
 
 pigs:          pigs.o command.o
-       $(CC) -o pigs pigs.c command.c
+       $(CC) -o pigs pigs.o command.o
 
 pig2vcd:       pig2vcd.o
-       $(CC) -o pig2vcd pig2vcd.c
+       $(CC) -o pig2vcd pig2vcd.o
 
 clean:
        rm -f *.o *.i *.s *~ $(ALL)
 
-install:       $(LIB)
-       sudo install -m 0755 -d              /opt/pigpio/cgi
-       sudo install -m 0755 -d              /usr/local/include
-       sudo install -m 0644 pigpio.h        /usr/local/include
-       sudo install -m 0644 pigpiod_if.h    /usr/local/include
-       sudo install -m 0755 -d              /usr/local/lib
-       sudo install -m 0644 libpigpio.a     /usr/local/lib
-       sudo install -m 0644 libpigpiod_if.a /usr/local/lib
-       sudo install -m 0755 -d              /usr/local/bin
-       sudo install -m 0755 pig2vcd         /usr/local/bin
-       sudo install -m 0755 pigpiod         /usr/local/bin
-       sudo install -m 0755 pigs            /usr/local/bin
+install:       $(ALL)
+       sudo install -m 0755 -d               /opt/pigpio/cgi
+       sudo install -m 0755 -d               /usr/local/include
+       sudo install -m 0644 pigpio.h         /usr/local/include
+       sudo install -m 0644 pigpiod_if.h     /usr/local/include
+       sudo install -m 0755 -d               /usr/local/lib
+       sudo install -m 0644 libpigpio.a      /usr/local/lib
+       sudo install -m 0755 libpigpio.so     /usr/local/lib
+       sudo install -m 0644 libpigpiod_if.a  /usr/local/lib
+       sudo install -m 0755 libpigpiod_if.so /usr/local/lib
+       sudo install -m 0755 -d               /usr/local/bin
+       sudo install -m 0755 -s pig2vcd       /usr/local/bin
+       sudo install -m 0755 -s pigpiod       /usr/local/bin
+       sudo install -m 0755 -s pigs          /usr/local/bin
        sudo python2 setup.py install
        sudo python3 setup.py install
-       sudo install -m 0755 -d              /usr/local/man/man1
-       sudo install -m 0644 *.1             /usr/local/man/man1
-       sudo install -m 0755 -d              /usr/local/man/man3
-       sudo install -m 0644 *.3             /usr/local/man/man3
+       sudo install -m 0755 -d               /usr/local/man/man1
+       sudo install -m 0644 *.1              /usr/local/man/man1
+       sudo install -m 0755 -d               /usr/local/man/man3
+       sudo install -m 0644 *.3              /usr/local/man/man3
+       sudo ldconfig
 
 uninstall:
        sudo rm -f /usr/local/include/pigpio.h
        sudo rm -f /usr/local/include/pigpiod_if.h
        sudo rm -f /usr/local/lib/libpigpio.a
        sudo rm -f /usr/local/lib/libpigpiod_if.a
+       sudo rm -f /usr/local/lib/libpigpio.so
+       sudo rm -f /usr/local/lib/libpigpiod_if.so
        sudo rm -f /usr/local/bin/pig2vcd
        sudo rm -f /usr/local/bin/pigpiod
        sudo rm -f /usr/local/bin/pigs
@@ -75,24 +93,34 @@ uninstall:
        sudo xargs rm -f < /tmp/pigpio >/dev/null
        sudo rm -f /usr/local/man/man1/pig*.1
        sudo rm -f /usr/local/man/man3/pig*.3
+       sudo ldconfig
 
 $(LIB1):       $(OBJ1)
-       $(AR) rcs $(LIB1) $(OBJ1)
-       $(RANLIB) $(LIB1)
-       $(SIZE)   $(LIB1)
+       $(SHLIB) -o $(LIB1) $(OBJ1)
+       $(STRIPLIB) $(LIB1)
+       $(SIZE)     $(LIB1)
+
+$(LIB1_ST):    $(OBJ1)
+       $(AR) rcs $(LIB1_ST) $(OBJ1)
+       $(RANLIB) $(LIB1_ST)
+       $(STRIPLIB) $(LIB1_ST)
+       $(SIZE)   $(LIB1_ST)
 
 $(LIB2):       $(OBJ2)
-       $(AR) rcs $(LIB2) $(OBJ2)
-       $(RANLIB) $(LIB2)
-       $(SIZE)   $(LIB2)
+       $(SHLIB) -o $(LIB2) $(OBJ2)
+       $(STRIPLIB) $(LIB2)
+       $(SIZE)     $(LIB2)
+
+$(LIB2_ST):    $(OBJ2)
+       $(AR) rcs $(LIB2_ST) $(OBJ2)
+       $(RANLIB) $(LIB2_ST)
+       $(STRIPLIB) $(LIB2_ST)
+       $(SIZE)   $(LIB2_ST)
 
 # generated using gcc -MM *.c
 
-command.o: command.c pigpio.h command.h
 pig2vcd.o: pig2vcd.c pigpio.h
-pigpio.o: pigpio.c pigpio.h command.h custom.cext
 pigpiod.o: pigpiod.c pigpio.h
-pigpiod_if.o: pigpiod_if.c pigpio.h command.h pigpiod_if.h
 pigs.o: pigs.c pigpio.h command.h
 x_pigpio.o: x_pigpio.c pigpio.h
 x_pigpiod_if.o: x_pigpiod_if.c pigpiod_if.h pigpio.h