# Makefile for csu code for GNU C library.
-# Copyright (C) 1995-2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 1995-2014 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
-# License along with the GNU C Library; if not, write to the Free
-# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307 USA.
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
# This directory contains the C startup code (that which calls main). This
# consists of the startfile, built from start.c and installed as crt0.o
# (traditionally) or crt1.o (for ELF). In ELF we also install crti.o and
# crtn.o, special "initializer" and "finalizer" files used in the link
-# to make the .init and .fini sections work right; both these files are
-# built (in an arcane manner) from initfini.c.
+# to make the .init and .fini sections work right.
subdir := csu
b$(start-installed-name) $(csu-dummies) \
S$(start-installed-name))
install-lib = $(start-installed-name) g$(start-installed-name) $(csu-dummies)
-distribute = initfini.c gmon-start.c start.c defs.awk \
- abi-note.S init.c c not-cancel.h
generated = version-info.h
before-compile = $(objpfx)version-info.h
generated += start.os
endif
-ifeq (yes,$(build-bounded))
-extra-objs += b$(start-installed-name)
-install-lib += b$(start-installed-name)
-generated += start.ob
-endif
-
ifneq ($(start-installed-name),$(static-start-installed-name))
extra-objs += $(static-start-installed-name) g$(static-start-installed-name)
omit-deps += $(patsubst %.o,%,$(static-start-installed-name) \
install-lib += $(static-start-installed-name) g$(static-start-installed-name)
endif
-ifeq (yes,$(elf))
before-compile += $(objpfx)abi-tag.h
generated += abi-tag.h
-endif
-
-ifeq ($(have-initfini),yes)
-
-CPPFLAGS += -DHAVE_INITFINI
# These are the special initializer/finalizer files. They are always the
# first and last file in the link. crti.o ... crtn.o define the global
install-lib += $(crtstuff:=.o)
extra-objs += $(crtstuff:=.o)
-generated += $(crtstuff:=.S) initfini.s defs.h
-omit-deps += $(crtstuff)
-
-# Special rules for the building of crti.o and crtn.o
-$(crtstuff:%=$(objpfx)%.o): %.o: %.S $(objpfx)defs.h
- $(compile.S) -g0 $(ASFLAGS-.os) -o $@
-
-CFLAGS-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
-
-vpath initfini.c $(sysdirs)
-
-$(objpfx)initfini.s: initfini.c $(before-compile)
- $(compile.c) -S $(CFLAGS-initfini.s) -finhibit-size-directive \
- $(patsubst -f%,-fno-%,$(exceptions)) -o $@
-
-# We only have one kind of startup code files. Static binaries and
-# shared libraries are build using the PIC version.
-$(objpfx)crti.S: $(objpfx)initfini.s
- sed -n -e '1,/@HEADER_ENDS/p' \
- -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
- -e '/@TRAILER_BEGINS/,$$p' $< > $@
-$(objpfx)crtn.S: $(objpfx)initfini.s
- sed -n -e '1,/@HEADER_ENDS/p' \
- -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
- -e '/@TRAILER_BEGINS/,$$p' $< > $@
-
-# These explicit rules are necessary when the $(objpfx) subdirectory
-# did not exist at the time make considered the implicit rules using it.
-# This comes up with a fresh build using no_deps=t.
-$(patsubst %,$(objpfx)crt%.o,i n): %.o: %.S
-
-$(objpfx)defs.h: $(objpfx)initfini.s
- sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
- $(AWK) -f defs.awk > $@
-
-endif
-
-ifeq (yes,$(elf))
extra-objs += abi-note.o init.o
asm-CPPFLAGS += -I$(objpfx).
-endif
include ../Rules
endef
ifndef start-installed-name-rule
-ifeq (yes,$(elf))
# We link the ELF startfile along with a SHT_NOTE section indicating
# the kernel ABI the binaries linked with this library will require.
$(objpfx)$(start-installed-name): $(objpfx)start.o $(objpfx)abi-note.o \
$(objpfx)S$(start-installed-name): $(objpfx)start.os $(objpfx)abi-note.o \
$(objpfx)init.o
$(link-relocatable)
-$(objpfx)b$(start-installed-name): $(objpfx)start.ob $(objpfx)abi-note.ob \
- $(objpfx)init.ob
- $(link-relocatable)
-else
-# The startfile is installed under different names, so we just call our
-# source file `start.c' and copy to the installed name after compiling.
-$(objpfx)$(start-installed-name): $(objpfx)start.o
- rm -f $@
- ln $< $@
-$(objpfx)S$(start-installed-name): $(objpfx)start.os
- rm -f $@
- ln $< $@
-$(objpfx)b$(start-installed-name): $(objpfx)start.ob
- rm -f $@
- ln $< $@
-endif
endif
# The profiling startfile is made by linking together the normal
linux*) version=`(printf '%s\n%s\n' \
'#include <linux/version.h>' \
UTS_RELEASE \
- | $(CC) $(CPPFLAGS) -E -P - -DNOT_IN_libc=1 | \
+ | $(CC) $(CPPFLAGS) -O -E -P - -DNOT_IN_libc=1 | \
sed -e 's/"\([^"]*\)".*/\1/p' -e d) 2>/dev/null`;\
+ if [ -z "$$version" ]; then \
+ version=`(printf '%s\n%s\n' \
+ '#include <linux/version.h>' \
+ LINUX_VERSION_CODE \
+ | $(CC) $(CPPFLAGS) -O -E -P - -DNOT_IN_libc=1 \
+ | sed -n -e '/^[123456789].*/p' \
+ | awk '{v=$$1; \
+ printf("%d.%d.%d\n", \
+ v/65535, v/256%256, v%256)}') \
+ 2>/dev/null`; \
+ fi; \
if [ -z "$$version" ]; then \
if [ -r /proc/version ]; then \
version=`sed 's/.*Linux version \([^ ]*\) .*/>>\1<</' \
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