4775578486
This adds a test to ensure that the problems fixed in the last several patches do not recur. Each directory checks the headers that it installs for two properties: first, each header must be compilable in isolation, as both C and C++, under a representative combination of language and library conformance levels; second, there is a blacklist of identifiers that may not appear in any installed header, currently consisting of the legacy BSD typedefs. (There is an exemption for the headers that define those typedefs, and for the RPC headers. It may be necessary to make this more sophisticated if we add more stuff to the blacklist in the future.) In order for this test to work correctly, every wrapper header that actually defines something must guard those definitions with #ifndef _ISOMAC. This is the existing mechanism used by the conform/ tests to tell wrapper headers not to define anything that the public header wouldn't, and not to use anything from libc-symbols.h. conform/ only cares for headers that we need to check for standards conformance, whereas this test applies to *every* header. (Headers in include/ that are either installed directly, or are internal-use-only and do *not* correspond to any installed header, are not affected.) * scripts/check-installed-headers.sh: New script. * Rules: In each directory that defines header files to be installed, run check-installed-headers.sh on them as a special test. * Makefile: Likewise for the headers installed at top level. * include/aliases.h, include/alloca.h, include/argz.h * include/arpa/nameser.h, include/arpa/nameser_compat.h * include/elf.h, include/envz.h, include/err.h * include/execinfo.h, include/fpu_control.h, include/getopt.h * include/gshadow.h, include/ifaddrs.h, include/libintl.h * include/link.h, include/malloc.h, include/mcheck.h * include/mntent.h, include/netinet/ether.h * include/nss.h, include/obstack.h, include/printf.h * include/pty.h, include/resolv.h, include/rpc/auth.h * include/rpc/auth_des.h, include/rpc/auth_unix.h * include/rpc/clnt.h, include/rpc/des_crypt.h * include/rpc/key_prot.h, include/rpc/netdb.h * include/rpc/pmap_clnt.h, include/rpc/pmap_prot.h * include/rpc/pmap_rmt.h, include/rpc/rpc.h * include/rpc/rpc_msg.h, include/rpc/svc.h * include/rpc/svc_auth.h, include/rpc/xdr.h * include/rpcsvc/nis_callback.h, include/rpcsvc/nislib.h * include/rpcsvc/yp.h, include/rpcsvc/ypclnt.h * include/rpcsvc/ypupd.h, include/shadow.h * include/stdio_ext.h, include/sys/epoll.h * include/sys/file.h, include/sys/gmon.h, include/sys/ioctl.h * include/sys/prctl.h, include/sys/profil.h * include/sys/statfs.h, include/sys/sysctl.h * include/sys/sysinfo.h, include/ttyent.h, include/utmp.h * sysdeps/arm/nacl/include/bits/setjmp.h * sysdeps/mips/include/sys/asm.h * sysdeps/unix/sysv/linux/include/sys/sysinfo.h * sysdeps/unix/sysv/linux/include/sys/timex.h * sysdeps/x86/fpu/include/bits/fenv.h: Add #ifndef _ISOMAC guard around internal declarations. Add multiple-inclusion guard if not already present.
270 lines
8.7 KiB
Plaintext
270 lines
8.7 KiB
Plaintext
# Copyright (C) 1991-2016 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
|
||
# modify it under the terms of the GNU Lesser General Public
|
||
# License as published by the Free Software Foundation; either
|
||
# version 2.1 of the License, or (at your option) any later version.
|
||
|
||
# The GNU C Library is distributed in the hope that it will be useful,
|
||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
# 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, see
|
||
# <http://www.gnu.org/licenses/>.
|
||
|
||
#
|
||
# Rules for making a subdirectory in the GNU C library.
|
||
# Each subdirectory Makefile defines some variables and includes this.
|
||
#
|
||
ifneq (,)
|
||
This makefile requires GNU Make.
|
||
endif
|
||
|
||
all: # Don't let the default goal come from Makeconfig.
|
||
|
||
include $(firstword $(..) ../)Makeconfig
|
||
|
||
ifndef subdir
|
||
Each subdirectory makefile must define the `subdir' variable.
|
||
endif
|
||
# This ` unconfuses emacs.
|
||
# This is benign and useless in GNU make before 3.63.
|
||
export subdir := $(subdir)
|
||
|
||
# This is the default target; it makes the library and auxiliary programs.
|
||
.PHONY: all
|
||
all: objs lib others
|
||
|
||
ifeq ($(build-programs),yes)
|
||
others: $(addprefix $(objpfx),$(extra-objs) \
|
||
$(install-lib) \
|
||
$(install-bin) $(install-bin-script) \
|
||
$(install-rootsbin) $(install-sbin))
|
||
else
|
||
others: $(addprefix $(objpfx),$(extra-objs) \
|
||
$(install-lib))
|
||
endif
|
||
|
||
ifneq "$(findstring env,$(origin headers))" ""
|
||
headers :=
|
||
endif
|
||
|
||
ifneq "$(findstring env,$(origin generated))" ""
|
||
generated :=
|
||
endif
|
||
|
||
ifneq "$(findstring env,$(origin common-generated))" ""
|
||
common-generated :=
|
||
endif
|
||
|
||
# See below. This must be set before Makerules processes it.
|
||
before-compile += $(common-objpfx)bits/stdio_lim.h
|
||
|
||
include $(..)Makerules
|
||
|
||
.PHONY: subdir_lib
|
||
subdir_lib: lib-noranlib
|
||
|
||
# Some subdirs need to install a dummy library.
|
||
# They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
|
||
dep-dummy-lib = $(common-objpfx)dummy.o
|
||
define make-dummy-lib
|
||
$(AR) cr$(verbose) $@ $<
|
||
endef
|
||
|
||
$(common-objpfx)dummy.c:
|
||
rm -f $@
|
||
(echo 'extern void __dummy__ (void);'; \
|
||
echo 'void __dummy__ (void) { }') > $@
|
||
common-generated += dummy.o dummy.c
|
||
|
||
ifneq "$(headers)" ""
|
||
# Special test of all the installed headers in this directory.
|
||
tests-special += $(objpfx)check-installed-headers-c.out
|
||
libof-check-installed-headers-c := nonlib
|
||
$(objpfx)check-installed-headers-c.out: \
|
||
$(..)scripts/check-installed-headers.sh $(headers)
|
||
$(SHELL) $(..)scripts/check-installed-headers.sh c \
|
||
"$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
|
||
$(headers) > $@; \
|
||
$(evaluate-test)
|
||
|
||
ifneq "$(CXX)" ""
|
||
tests-special += $(objpfx)check-installed-headers-cxx.out
|
||
libof-check-installed-headers-cxx := nonlib
|
||
$(objpfx)check-installed-headers-cxx.out: \
|
||
$(..)scripts/check-installed-headers.sh $(headers)
|
||
$(SHELL) $(..)scripts/check-installed-headers.sh c++ \
|
||
"$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
|
||
$(headers) > $@; \
|
||
$(evaluate-test)
|
||
endif
|
||
endif
|
||
|
||
# This makes all the auxiliary and test programs.
|
||
|
||
.PHONY: others tests bench bench-build
|
||
|
||
ifeq ($(build-programs),yes)
|
||
others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
|
||
else
|
||
others: $(addprefix $(objpfx),$(extra-objs))
|
||
endif
|
||
ifeq ($(run-built-tests),no)
|
||
tests: $(addprefix $(objpfx),$(tests) $(test-srcs)) $(tests-special)
|
||
xtests: tests $(xtests-special)
|
||
else
|
||
tests: $(tests:%=$(objpfx)%.out) $(tests-special)
|
||
xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-special)
|
||
endif
|
||
|
||
tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
|
||
xtests-special-notdir = $(patsubst $(objpfx)%, %, $(xtests-special))
|
||
tests:
|
||
$(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
|
||
$(sort $(tests) $(tests-special-notdir:.out=)) \
|
||
> $(objpfx)subdir-tests.sum
|
||
xtests:
|
||
$(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
|
||
$(sort $(xtests) $(xtests-special-notdir:.out=)) \
|
||
> $(objpfx)subdir-xtests.sum
|
||
|
||
ifeq ($(build-programs),yes)
|
||
binaries-all-notests = $(others) $(sysdep-others)
|
||
binaries-all-tests = $(tests) $(xtests) $(test-srcs)
|
||
binaries-all = $(binaries-all-notests) $(binaries-all-tests)
|
||
binaries-static-notests = $(others-static)
|
||
binaries-static-tests = $(tests-static) $(xtests-static)
|
||
binaries-static = $(binaries-static-notests) $(binaries-static-tests)
|
||
ifeq (yesyes,$(have-fpie)$(build-shared))
|
||
binaries-pie-tests = $(tests-pie) $(xtests-pie)
|
||
binaries-pie-notests = $(others-pie)
|
||
else
|
||
binaries-pie-tests =
|
||
binaries-pie-notests =
|
||
endif
|
||
else
|
||
binaries-all-notests =
|
||
binaries-all-tests = $(tests) $(xtests) $(test-srcs)
|
||
binaries-all = $(binaries-all-tests)
|
||
binaries-static-notests =
|
||
binaries-static-tests =
|
||
binaries-static =
|
||
binaries-pie-tests =
|
||
binaries-pie-notests =
|
||
endif
|
||
|
||
binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
|
||
binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
|
||
$(binaries-all-tests))
|
||
binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
|
||
$(binaries-all-notests))
|
||
|
||
ifneq "$(strip $(binaries-shared-notests))" ""
|
||
$(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
|
||
$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
|
||
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
|
||
$(+link)
|
||
endif
|
||
|
||
ifneq "$(strip $(binaries-shared-tests))" ""
|
||
$(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
|
||
$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
|
||
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
|
||
$(+link-tests)
|
||
endif
|
||
|
||
ifneq "$(strip $(binaries-pie-tests))" ""
|
||
$(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
|
||
$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
|
||
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
|
||
$(+link-pie-tests)
|
||
endif
|
||
|
||
ifneq "$(strip $(binaries-pie-notests))" ""
|
||
$(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
|
||
$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
|
||
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
|
||
$(+link-pie)
|
||
endif
|
||
|
||
ifneq "$(strip $(binaries-static-notests))" ""
|
||
$(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
|
||
$(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
|
||
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
|
||
$(+link-static)
|
||
endif
|
||
|
||
ifneq "$(strip $(binaries-static-tests))" ""
|
||
$(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
|
||
$(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
|
||
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
|
||
$(+link-static-tests)
|
||
endif
|
||
|
||
ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
|
||
# These are the implicit rules for making test outputs
|
||
# from the test programs and whatever input files are present.
|
||
|
||
define make-test-out
|
||
$(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
|
||
$(test-wrapper-env) $(run-program-env) $($*-ENV)) \
|
||
$(host-test-program-cmd) $($*-ARGS)
|
||
endef
|
||
$(objpfx)%.out: %.input $(objpfx)%
|
||
$(make-test-out) > $@ < $(word 1,$^); \
|
||
$(evaluate-test)
|
||
$(objpfx)%.out: /dev/null $(objpfx)% # Make it 2nd arg for canned sequence.
|
||
$(make-test-out) > $@; \
|
||
$(evaluate-test)
|
||
|
||
# tests-unsupported lists tests that we will not try to build at all in
|
||
# this configuration. Note this runs every time because it does not
|
||
# actually create its target. The dependency on Makefile is meant to
|
||
# ensure that it runs after a Makefile change to add a test to the list
|
||
# when it previously ran and produced a .out file (probably for a failure).
|
||
ifneq "$(strip $(tests-unsupported))" ""
|
||
$(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
|
||
@rm -f $@
|
||
$(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
|
||
77 false false > $(@:.out=.test-result)
|
||
endif
|
||
|
||
endif # tests
|
||
|
||
|
||
.PHONY: distclean realclean subdir_distclean subdir_realclean \
|
||
subdir_clean subdir_mostlyclean subdir_testclean
|
||
subdir_mostlyclean: mostlyclean
|
||
subdir_clean: clean
|
||
subdir_distclean: distclean
|
||
subdir_realclean: realclean
|
||
subdir_testclean: do-tests-clean
|
||
realclean: distclean
|
||
distclean: clean
|
||
|
||
# We want to install everything except the library itself, but update all
|
||
# our portions of the library because the parent make will install it later
|
||
# (likewise the stubs file).
|
||
.PHONY: subdir_install
|
||
subdir_install: install-no-libc.a lib-noranlib stubs
|
||
|
||
.PHONY: subdir_objs subdir_stubs
|
||
subdir_objs: objs
|
||
subdir_stubs: stubs
|
||
|
||
# Target required by the Hurd to ensure that all the MiG-generated
|
||
# headers are in place before building a subdirectory.
|
||
.PHONY: before-compile
|
||
before-compile: $(before-compile)
|
||
|
||
$(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
|
||
$(compile-command.c)
|
||
|
||
# Local Variables:
|
||
# mode: makefile
|
||
# End:
|