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[Xen-devel] debian pic-lib.patch (4 of 5)



Name: pic-lib.patch
Description: support PIC code generation
 Libraries have 2 methods of being compiled; a .so must contain non-pic
 objects, while the .a can contain standard objects.
Signed-off-by: Adam Heath <doogie@xxxxxxxxxxxxx>
DiffStat:
 tools/libxc/Makefile    |   33 +++++++++++++++++++++------------
 tools/libxutil/Makefile |   12 +++++++++---
 2 files changed, 30 insertions(+), 15 deletions(-)

--- xen-2.0.4.orig/tools/libxutil/Makefile
+++ xen-2.0.4/tools/libxutil/Makefile
@@ -24,6 +24,7 @@
 LIB_SRCS += util.c
 
 LIB_OBJS := $(LIB_SRCS:.c=.o)
+LIB_PIC_OBJS := $(LIB_SRCS:.c=.opic)
 
 CFLAGS   += -Wall -Werror -O3 -fno-strict-aliasing
 
@@ -34,6 +35,7 @@
 MAJOR    := 2.0
 MINOR    := 0
 LIB_NAME := libxutil
+SO_NAME  := $(LIB_NAME).so.$(MAJOR)
 LIB      := $(LIB_NAME).so 
 LIB      += $(LIB_NAME).so.$(MAJOR)
 LIB      += $(LIB_NAME).so.$(MAJOR).$(MINOR)
@@ -42,14 +44,17 @@
 all: check-for-zlib
        $(MAKE) $(LIB)
 
+$(LIB_PIC_OBJS): %.opic: %.c
+       $(CC) $(CPPFLAGS) -DPIC $(CFLAGS) -fPIC -c -o $@ $<
+
 $(LIB_NAME).so: $(LIB_NAME).so.$(MAJOR)
        ln -sf $^ $@
 
 $(LIB_NAME).so.$(MAJOR): $(LIB_NAME).so.$(MAJOR).$(MINOR)
        ln -sf $^ $@
 
-$(LIB_NAME).so.$(MAJOR).$(MINOR): $(LIB_OBJS)
-       $(CC) -Wl,-soname -Wl,$(LIB_NAME).so.$(MAJOR) -shared -o $@ $^
+$(LIB_NAME).so.$(MAJOR).$(MINOR): $(LIB_PIC_OBJS)
+       $(CC) -Wl,-soname -Wl,$(SO_NAME) -shared -o $@ $^
 
 $(LIB_NAME).a: $(LIB_OBJS)
        $(AR) rc $@ $^
@@ -65,11 +71,12 @@
 install: all
        [ -d $(DESTDIR)/usr/lib ] || $(INSTALL_DIR) -p $(DESTDIR)/usr/lib
        $(INSTALL_PROG) $(LIB_NAME).so.$(MAJOR).$(MINOR) $(DESTDIR)/usr/lib
+       $(INSTALL_DATA) $(LIB_NAME).a $(DESTDIR)/usr/lib
        ln -sf $(LIB_NAME).so.$(MAJOR).$(MINOR) 
$(DESTDIR)/usr/lib/$(LIB_NAME).so.$(MAJOR)
        ln -sf $(LIB_NAME).so.$(MAJOR) $(DESTDIR)/usr/lib/$(LIB_NAME).so
 
 clean:
-       $(RM) *.a *.so *.so.* *.o *.rpm 
+       $(RM) *.a *.so *.so.* *.o *.opic *.rpm 
        $(RM) *~
        $(RM) $(DEPS)
 
--- xen-2.0.4.orig/tools/libxc/Makefile
+++ xen-2.0.4/tools/libxc/Makefile
@@ -5,7 +5,8 @@
 
 MAJOR    = 2.0
 MINOR    = 0
-SONAME   = libxc.so.$(MAJOR)
+LIB_NAME = libxc
+SONAME   = $(LIB_NAME).so.$(MAJOR)
 
 CC       = gcc
 
@@ -39,9 +40,10 @@
 CFLAGS   += -Wp,-MD,.$(@F).d
 DEPS     = .*.d
 
-OBJS     = $(patsubst %.c,%.o,$(SRCS))
+OBJS     := $(patsubst %.c,%.o,$(SRCS))
+PIC_OBJS := $(patsubst %.c,%.opic,$(SRCS))
 
-LIB      = libxc.so libxc.so.$(MAJOR) libxc.so.$(MAJOR).$(MINOR)
+LIB            := $(LIB_NAME).a $(LIB_NAME).so $(LIB_NAME).so.$(MAJOR) 
$(LIB_NAME).so.$(MAJOR).$(MINOR)
 
 all: check-for-zlib mk-symlinks
        $(MAKE) $(LIB)
@@ -68,13 +70,14 @@
 install: all
        [ -d $(DESTDIR)/usr/lib ] || $(INSTALL_DIR) $(DESTDIR)/usr/lib
        [ -d $(DESTDIR)/usr/include ] || $(INSTALL_DIR) $(DESTDIR)/usr/include
-       $(INSTALL_PROG) libxc.so.$(MAJOR).$(MINOR) $(DESTDIR)/usr/lib
-       ln -sf libxc.so.$(MAJOR).$(MINOR) $(DESTDIR)/usr/lib/libxc.so.$(MAJOR)
-       ln -sf libxc.so.$(MAJOR) $(DESTDIR)/usr/lib/libxc.so
+       $(INSTALL_PROG) $(LIB_NAME).so.$(MAJOR).$(MINOR) $(DESTDIR)/usr/lib
+       $(INSTALL_DATA) $(LIB_NAME).a $(DESTDIR)/usr/lib
+       ln -sf $(LIB_NAME).so.$(MAJOR).$(MINOR) 
$(DESTDIR)/usr/lib/$(LIB_NAME).so.$(MAJOR)
+       ln -sf $(LIB_NAME).so.$(MAJOR) $(DESTDIR)/usr/lib/$(LIB_NAME).so
        $(INSTALL_DATA) xc.h $(DESTDIR)/usr/include
 
 clean:
-       rm -rf *.a *.so *.o *.rpm $(LIB) *~ $(DEPS) xen
+       rm -rf *.a *.so *.o *.opic *.rpm $(LIB) *~ $(DEPS) xen
 
 rpm: all
        rm -rf staging
@@ -85,11 +87,17 @@
        mv staging/i386/*.rpm .
        rm -rf staging
 
-libxc.so:
-       ln -sf libxc.so.$(MAJOR) $@
-libxc.so.$(MAJOR):
-       ln -sf libxc.so.$(MAJOR).$(MINOR) $@
-libxc.so.$(MAJOR).$(MINOR): $(OBJS)
+$(PIC_OBJS): %.opic: %.c
+       $(CC) $(CPPFLAGS) -DPIC $(CFLAGS) -fPIC -c -o $@ $<
+       
+$(LIB_NAME).a: $(OBJS)
+       $(AR) rc $@ $^
+
+$(LIB_NAME).so: $(LIB_NAME).so.$(MAJOR)
+       ln -sf $< $@
+$(LIB_NAME).so.$(MAJOR): $(LIB_NAME).so.$(MAJOR).$(MINOR)
+       ln -sf $< $@
+$(LIB_NAME).so.$(MAJOR).$(MINOR): $(PIC_OBJS)
        $(CC) -Wl,-soname -Wl,$(SONAME) -shared -o $@ $^ -L../libxutil -lxutil 
-lz
 
 -include $(DEPS)




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