# Makefile for uClibc
#
-# Copyright (C) 2000 by Lineo, inc.
-# Copyright (C) 2000-2002 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2000-2004 Erik Andersen <andersen@uclibc.org>
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU Library General Public License as published by the Free
# You should have received a copy of the GNU Library General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-#
-# Derived in part from the Linux-8086 C library, the GNU C Library, and several
-# other sundry sources. Files within this library are copyright by their
-# respective copyright holders.
TOPDIR=../../
include $(TOPDIR)Rules.mak
LDSO_FULLNAME=ld-uClibc-$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL).so
+# reset to initial (disabling predefined CFLAGS)
+ASFLAGS=
+ifeq ($(UCLIBC_BUILD_NOEXECSTACK),y)
+ASFLAGS+=$(call check_as,--noexecstack)
+endif
-XXFLAGS=$(XWARNINGS) $(OPTIMIZATION) $(XARCH_CFLAGS) $(CPU_CFLAGS) $(PICFLAG) \
- -DUCLIBC_TARGET_PREFIX=\"$(TARGET_PREFIX)\" \
- -DUCLIBC_DEVEL_PREFIX=\"$(DEVEL_PREFIX)\" \
- -DUCLIBC_BUILD_DIR=\"$(shell cd $(TOPDIR) && pwd)\" \
- -fno-builtin -nostdinc -I$(TOPDIR)ldso/include -I. -I$(TOPDIR)include
+XXFLAGS=$(XWARNINGS) $(SSP_DISABLE_FLAGS)
+ifeq ($(DL_FINI_CRT_COMPAT),y)
+XXFLAGS+=-D_DL_FINI_CRT_COMPAT
+endif
ifeq ($(DODEBUG),y)
-XXFLAGS=$(XWARNINGS) -O0 -g3 $(XARCH_CFLAGS) $(CPU_CFLAGS) $(PICFLAG) \
- -DUCLIBC_TARGET_PREFIX=\"$(TARGET_PREFIX)\" \
- -DUCLIBC_DEVEL_PREFIX=\"$(DEVEL_PREFIX)\" \
- -DUCLIBC_BUILD_DIR=\"$(shell cd $(TOPDIR) && pwd)\" \
- -fno-builtin -nostdinc -I$(TOPDIR)ldso/include -I. -I$(TOPDIR)include
+# Not really much point in including debugging info, since gdb
+# can't really debug ldso, since gdb requires help from ldso to
+# debug things....
+XXFLAGS+=-Os -g3
+else
+XXFLAGS+=$(OPTIMIZATION)
+endif
+XXFLAGS+= $(XARCH_CFLAGS) $(CPU_CFLAGS) $(PICFLAG) \
+ -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \
+ -fno-builtin -nostdinc -D_LIBC -I$(TOPDIR)ldso/include -I. -I$(TOPDIR)include
+
+# BEWARE!!! At least mips* will die if -O0 is used!!!
+XXFLAGS:=$(XXFLAGS:-O0=-O1)
+XXFLAGS+=-isystem $(shell $(CC) -print-file-name=include)
+LDFLAGS=$(CPU_LDFLAGS-y) -e _start -z now -Bsymbolic -shared --warn-common --export-dynamic --sort-common \
+ -z combreloc --discard-locals --discard-all --no-undefined
+ifeq ($(UCLIBC_BUILD_RELRO),y)
+ LDFLAGS+=-z relro
endif
-XXFLAGS+=$(shell $(CC) -print-search-dirs | sed -ne "s/install: *\(.*\)/-I\1include/gp")
-LDFLAGS=$(CPU_LDFLAGS-y) -shared --warn-common --export-dynamic --sort-common \
- -z combreloc --discard-locals --discard-all
-
-CSRC= ldso.c #hash.c readelflib1.c $(TARGET_ARCH)/elfinterp.c
+CSRC= ldso.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
ASRC=$(shell ls $(TARGET_ARCH)/*.S)
AOBJS=$(patsubst %.S,%.o, $(ASRC))
OBJS=$(AOBJS) $(COBJS)
-ifneq ($(strip $(DODEBUG)),y)
+ifneq ($(strip $(SUPPORT_LD_DEBUG)),y)
LDFLAGS+=-s
endif
XXFLAGS+=-D__SUPPORT_LD_DEBUG_EARLY__
endif
-ifeq ($(strip $(FORCE_SHAREABLE_TEXT_SEGMENTS)),y)
-XXFLAGS+=-DFORCE_SHAREABLE_TEXT_SEGMENTS
-endif
+#This stuff will not work with -fomit-frame-pointer
+XXFLAGS := $(XXFLAGS:-fomit-frame-pointer=)
-all: lib
+all: $(LDSO_FULLNAME)
-lib:: _dl_progname.h $(OBJS) $(DLINK_OBJS)
- $(LD) $(LDFLAGS) -e _dl_boot -soname=$(UCLIBC_LDSO) \
- -o $(LDSO_FULLNAME) $(OBJS) $(LIBGCC);
+$(LDSO_FULLNAME): $(OBJS) $(DLINK_OBJS)
+ $(LD) $(LDFLAGS) -soname=$(UCLIBC_LDSO) \
+ -o $(LDSO_FULLNAME) $(OBJS) $(LIBGCC)
$(INSTALL) -d $(TOPDIR)lib
$(INSTALL) -m 755 $(LDSO_FULLNAME) $(TOPDIR)lib
$(LN) -sf $(LDSO_FULLNAME) $(TOPDIR)lib/$(UCLIBC_LDSO)
-_dl_progname.h: Makefile
- echo "const char *_dl_progname=\""$(UCLIBC_LDSO)"\";" > _dl_progname.h
- echo "#include \"$(TARGET_ARCH)/elfinterp.c\"" >> _dl_progname.h
-
-
$(COBJS): %.o : %.c
$(CC) $(XXFLAGS) -I../libdl -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
$(AOBJS): %.o : %.S
- $(CC) $(XXFLAGS) -I../libdl -c $< -o $@
+ $(CC) $(XXFLAGS) $(ASFLAGS) -I../libdl -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
-ldso.o: ldso.c hash.c readelflib1.c $(TARGET_ARCH)/elfinterp.c _dl_progname.h
+ldso.o: $(CSRC) dl-elf.c dl-hash.c dl-startup.c dl-debug.c \
+ $(TARGET_ARCH)/*.h $(TARGET_ARCH)/*.c $(TOPDIR)ldso/include/*.h
clean:
- $(RM) $(UCLIBC_LDSO)* $(OBJS) $(LDSO_FULLNAME)* core *.o *.a *.s *.i _dl_progname.h ldso.h *~
+ $(RM) $(UCLIBC_LDSO)* $(OBJS) $(LDSO_FULLNAME)* core *.o *.a *.s *.i ldso.h *~