-# Copyright (C) 1991-2012 Free Software Foundation, Inc.
+# Copyright (C) 1991-2014 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
$(wildcard $(dir)/Implies) \
$(patsubst %.in,%,\
$(firstword $(wildcard \
- $(addprefix $(dir)/,configure configure.in))))) \
+ $(addprefix $(dir)/,configure configure.ac))))) \
+ $(patsubst %.in,%,\
+ $(wildcard $(..)sysdeps/*/preconfigure $(..)sysdeps/*/preconfigure.ac)) \
$(patsubst %.in,%,\
$(foreach add-on,$(add-ons),\
$(firstword $(wildcard \
$(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\
- configure configure.in)))))
+ configure configure.ac))) \
+ $(wildcard $(addprefix $(firstword $(filter /%,$(add-on)) $(..)$(add-on))/,\
+ sysdeps/*/preconfigure sysdeps/*/preconfigure.ac))))
@cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
echo The GNU C library has not been configured. >&2; \
echo Run \`configure\' to configure it before building. >&2; \
endif
inst_libdir = $(install_root)$(libdir)
-# Where to install the shared library and dynamic linker.
+# Where to install the shared library.
ifndef slibdir
slibdir = $(exec_prefix)/lib
endif
inst_slibdir = $(install_root)$(slibdir)
+# Where to install the dynamic linker.
+ifndef rtlddir
+rtlddir = $(slibdir)
+endif
+inst_rtlddir = $(install_root)$(rtlddir)
+
# Prefix to put on files installed in $(libdir). For libraries `libNAME.a',
# the prefix is spliced between `lib' and the name, so the linker switch
# `-l$(libprefix)NAME' finds the library; for other files the prefix is
# Command for linking PIE programs with the C library.
ifndef +link-pie
-+link-pie = $(CC) -pie -Wl,-O1 -nostdlib -nostartfiles -o $@ \
- $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
++link-pie-before-libc = $(CC) -pie -Wl,-O1 -nostdlib -nostartfiles -o $@ \
+ $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
$(combreloc-LDFLAGS) $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \
$(addprefix $(csu-objpfx),S$(start-installed-name)) \
$(+preinit) $(+prectorS) \
S$(start-installed-name))\
$(+preinit) $(link-extra-libs) \
$(common-objpfx)libc% $(+postinit),$^) \
- $(link-extra-libs) $(link-libc) $(+postctorS) $(+postinit)
+ $(link-extra-libs)
++link-pie-after-libc = $(+postctorS) $(+postinit)
++link-pie = $(+link-pie-before-libc) $(rtld-LDFLAGS) $(link-libc) \
+ $(+link-pie-after-libc)
++link-pie-tests = $(+link-pie-before-libc) $(rtld-tests-LDFLAGS) \
+ $(link-libc-tests) $(+link-pie-after-libc)
endif
# Command for statically linking programs with the C library.
ifndef +link-static
ifndef +link
ifeq (yes,$(build-shared))
+link-before-libc = $(CC) -nostdlib -nostartfiles -o $@ \
- $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
+ $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
$(combreloc-LDFLAGS) $(relro-LDFLAGS) $(hashstyle-LDFLAGS) \
$(addprefix $(csu-objpfx),$(start-installed-name)) \
$(+preinit) $(+prector) \
$(common-objpfx)libc% $(+postinit),$^) \
$(link-extra-libs)
+link-after-libc = $(+postctor) $(+postinit)
-+link = $(+link-before-libc) $(link-libc) $(+link-after-libc)
-+link-tests = $(+link-before-libc) $(link-libc-tests) $(+link-after-libc)
++link = $(+link-before-libc) $(rtld-LDFLAGS) $(link-libc) \
+ $(+link-after-libc)
++link-tests = $(+link-before-libc) $(rtld-tests-LDFLAGS) \
+ $(link-libc-tests) $(+link-after-libc)
else
+link = $(+link-static)
+link-tests = $(+link-static-tests)
endif
endif
-# Command for statically linking bounded-pointer programs with the C library.
-ifndef +link-bounded
-+link-bounded = $(CC) -nostdlib -nostartfiles -static -fbounded-pointers -o $@ \
- $(sysdep-LDFLAGS) $(LDFLAGS) \
- $(addprefix $(csu-objpfx),b$(static-start-installed-name)) \
- $(+preinit) $(+prectorT) \
- $(filter-out $(addprefix $(csu-objpfx),start.ob \
- $(start-installed-name))\
- $(+preinit) $(link-extra-libs-bounded) \
- $(common-objpfx)libc% $(+postinit),$^) \
- $(link-extra-libs-bounded) $(link-libc-bounded) $(+postctorT) $(+postinit)
-endif
-ifndef config-LDFLAGS
ifeq (yes,$(build-shared))
-config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name)
+ifndef rtld-LDFLAGS
+rtld-LDFLAGS = -Wl,-dynamic-linker=$(rtlddir)/$(rtld-installed-name)
+endif
+ifndef rtld-tests-LDFLAGS
+ifeq (yes,$(build-hardcoded-path-in-tests))
+rtld-tests-LDFLAGS = -Wl,-dynamic-linker=$(common-objpfx)elf/ld.so
+else
+rtld-tests-LDFLAGS = $(rtld-LDFLAGS)
+endif
endif
endif
ifndef link-libc
# We need the versioned name of libc.so in the deps of $(others) et al
# so that the symlink to libc.so is created before anything tries to
# run the linked programs.
-link-libc-before-gnulib = -Wl,-rpath-link=$(rpath-link) \
- $(common-objpfx)libc.so$(libc.so-version) \
- $(common-objpfx)$(patsubst %,$(libtype.oS),c) \
- $(as-needed) $(common-objpfx)elf/ld.so $(no-as-needed)
-link-libc = $(link-libc-before-gnulib) $(gnulib)
-link-libc-tests = $(link-libc-before-gnulib) $(gnulib-tests)
+link-libc-rpath-link = -Wl,-rpath-link=$(rpath-link)
+ifeq (yes,$(build-hardcoded-path-in-tests))
+link-libc-tests-rpath-link = -Wl,-rpath=$(rpath-link)
+else
+link-libc-tests-rpath-link = $(link-libc-rpath-link)
+endif
+link-libc-before-gnulib = $(common-objpfx)libc.so$(libc.so-version) \
+ $(common-objpfx)$(patsubst %,$(libtype.oS),c) \
+ $(as-needed) $(common-objpfx)elf/ld.so \
+ $(no-as-needed)
+link-libc = $(link-libc-rpath-link) $(link-libc-before-gnulib) $(gnulib)
+link-libc-tests = $(link-libc-tests-rpath-link) \
+ $(link-libc-before-gnulib) $(gnulib-tests)
# This is how to find at build-time things that will be installed there.
rpath-dirs = math elf dlfcn nss nis rt resolv crypt
rpath-link = \
ifndef link-extra-libs
link-extra-libs = $(LDLIBS-$(@F))
link-extra-libs-static = $(link-extra-libs)
-link-extra-libs-bounded = $(link-extra-libs)
endif
# The static libraries.
link-libc-static = -Wl,--start-group $(common-objpfx)libc.a $(static-gnulib) -Wl,--end-group
link-libc-static-tests = -Wl,--start-group $(common-objpfx)libc.a $(static-gnulib-tests) -Wl,--end-group
-link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a
# How to link against libgcc. Some libgcc functions, such as those
# for "long long" arithmetic or software floating point, can always be
# How to run a program we just linked with our library.
# The program binary is assumed to be $(word 2,$^).
built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^))
+rtld-prefix = $(elf-objpfx)$(rtld-installed-name) \
+ --library-path \
+ $(rpath-link)$(patsubst %,:%,$(sysdep-library-path))
ifeq (yes,$(build-shared))
comma = ,
sysdep-library-path = \
# $(run-via-rtld-prefix) is a command that, when prepended to the name
# of a program built with the newly built library, produces a command
# that, executed on the host for which the library is built, runs that
-# program. For the statically-linked %-bp test programs, and for
-# tests listed in tests-static or xtests-static, it is empty.
+# program. For tests listed in tests-static or xtests-static, it is
+# empty.
run-via-rtld-prefix = \
$(if $(strip $(filter $(notdir $(built-program-file)), \
- $(tests-static) $(xtests-static)) \
- $(filter %-bp,$(built-program-file))),, \
- $(elf-objpfx)$(rtld-installed-name) \
- --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)))
+ $(tests-static) $(xtests-static))),, $(rtld-prefix))
else
run-via-rtld-prefix =
endif
LD := ld -X
endif
+# $(test-via-rtld-prefix) is a command that, when prepended to the name
+# of a test program built with the newly built library, produces a command
+# that, executed on the host for which the library is built, runs that
+# program. For tests listed in tests-static or xtests-static as well
+# as when test programs are hardcoded to the newly built libraries, it
+# is empty.
+
+# $(test-program-prefix) is a command that, when prepended to the name
+# of a test program built with the newly built library, produces a command
+# that, executed on the build system on which "make" is run, runs that
+# test program.
+
+# $(test-program-cmd) is a command that, executed on the build system
+# on which "make" is run, runs the newly built test program that is the
+# second dependency of the makefile target in which
+# $(test-program-cmd) is used.
+
+# $(host-test-program-cmd) is a command that, executed on the host
+# for which the library is built, runs the newly built test program that
+# is the second dependency of the makefile target in which
+# $(host-test-program-cmd) is used.
+
+ifeq (yes,$(build-hardcoded-path-in-tests))
+test-via-rtld-prefix =
+test-program-prefix = $(test-wrapper)
+test-program-cmd = $(test-wrapper) $(built-program-file)
+host-test-program-cmd = $(built-program-file)
+else
+test-via-rtld-prefix = $(run-via-rtld-prefix)
+test-program-prefix = $(run-program-prefix)
+test-program-cmd = $(built-program-cmd)
+host-test-program-cmd = $(host-built-program-cmd)
+endif
+
# Extra flags to pass to GCC.
ifeq ($(all-warnings),yes)
+gccwarn := -Wall -Wwrite-strings -Winline -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
# Don't duplicate options if we inherited variables from the parent.
+cflags := $(sort $(+cflags))
+# Each sysdeps directory can contain header files that both will be
+# used to compile and will be installed. Each can also contain an
+# include/ subdirectory, whose header files will be used to compile
+# but will not be installed, and will take precedence over the
+# installed files. This mirrors the top-level include/ subdirectory.
++sysdep-includes := $(foreach dir,$(+sysdep_dirs),\
+ $(addprefix -I,$(wildcard $(dir)/include) $(dir)))
+
# These are flags given to the C compiler to tell it to look for
# include files (including ones given in angle brackets) in the parent
# library source directory, in the include directory, and in the
# current directory.
-+sysdep-includes = $(addprefix -I,$(+sysdep_dirs))
+includes = -I$(..)include $(if $(subdir),$(objpfx:%/=-I%)) \
$(+sysdep-includes) $(includes) \
$(patsubst %/,-I%,$(..)) $(libio-include) -I. $(sysincludes)
# The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX})
# to pass different flags for each flavor.
libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
-all-object-suffixes := .o .os .op .og .ob .oS
+all-object-suffixes := .o .os .op .og .oS
object-suffixes :=
CPPFLAGS-.o = $(pic-default)
CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
# differently from the rest.
object-suffixes-noshared := $(filter-out .os,$(object-suffixes))
-bppfx = BP-
-ifeq (yes,$(build-bounded))
-# Under --enable-bounded, we build the library with `-fbounded-pointers -g'
-# to runtime bounds checking. The bounded-pointer objects are named foo.ob.
-# We disable sibling-call optimizations so that stack traces will be complete
-# and thus aid debugging, since after all, BPs are a debugging tool.
-object-suffixes += .ob
-CPPFLAGS-.ob = -fbounded-pointers $(pic-default)
-CFLAGS-.ob = -g -O2 -fno-optimize-sibling-calls -fno-strict-aliasing
-libtype.ob = lib%_b.a
-endif
-
object-suffixes-for-libc := $(object-suffixes)
ifeq (yes,$(build-shared))
subdir-srcdirs = $(foreach dir,$(subdirs),\
$(firstword $($(dir)-srcdir) $(..)$(dir)))
-ifeq (yes, $(build-shared))
-
# This is a pair of implicit rules to preprocess a file with # comments,
# %ifdef et al, based on config.h settings or other %include'd files.
# We use chained rules instead of a pipeline here so that we can properly
sed '/^[ ]*#/d;/^[ ]*$$/d' $< > $@T
mv -f $@T $@
+ifeq (yes, $(build-shared))
+
# To generate a header to support more than one ABI for different
# architecture variants, the CPU/Makefile defines abi-variants to be a
# list of names for those variants (e.g. 32 64), and, for each variant,
stdlib stdio-common libio malloc string wcsmbs time dirent \
grp pwd posix io termios resource misc socket sysvipc gmon \
gnulib iconv iconvdata wctype manual shadow gshadow po argp \
- crypt nss localedata timezone rt conform debug \
+ crypt localedata timezone rt conform debug \
$(add-on-subdirs) dlfcn elf
ifndef avoid-generated
-all-Depend-files := $(wildcard $(foreach dir,$(all-subdirs),\
- $(firstword $($(dir)-srcdir) \
- $(..)$(dir))/Depend))
+# sysd-sorted itself will contain rules making the sysd-sorted target
+# depend on Depend files. But if you just added a Depend file to an
+# existing directory not in all-subdirs, then sysd-sorted needs to
+# be regenerated, so it depends on existing $(sorted-subdirs:=/Depend) files.
+all-Depend-files := $(wildcard $(sort \
+ $(foreach dir,$(all-subdirs),\
+ $(firstword $($(dir)-srcdir) \
+ $(..)$(dir))/Depend) \
+ $(sorted-subdirs:=/Depend)))
$(common-objpfx)sysd-sorted: $(..)scripts/gen-sorted.awk \
$(common-objpfx)config.make $(..)Makeconfig \
$(wildcard $(sysdirs:=/Subdirs)) \
git.samba.org / jlayton / glibc.git / blobdiff