glibc/posix/Makefile
Adhemerval Zanella 5554304f0d posix: Allow glob to match dangling symlinks [BZ #866]
This patch makes glob match dangling symlinks.  Compared to other glob
implementation (*BSD, bash, musl, and other shells as well), GLIBC seems
the be the only one that does not match dangling symlinks.  As for
comment #5 in BZ #866, POSIX does not have any strict specification for
dangling symlinks match and it is reasonable that trying to glob everything
in a path should return all types of files (such as for a 'rm *').  Also,
comment #7 shows even more example where GLIBC current behavior is
unexepected.

I avoided adding another GNU specific flag to set this behavior and
instead make it the default.  Although this change the semanthic from
previous implementation, I think adding another compat symbol to be
really unecessary as from aforementioned reasons (current behavior not
defined in any standard, general idea of different implementation is
to list dangling symbols).

This also sync glob with gnulib commit fd1daf4 (glob: match dangling
symlinks).

Checked on x86_64-linux-gnu and on a build using build-many-glibcs.py
for all major architectures.

	[BZ #866]
	[BZ #1062]
	* posix/Makefile (tests): Remove bug-glob1 and tst-glob_symlinks.
	* posix/bug-glob1.c: Remove file.
	* posix/tst-glob_symlinks.c: New file.
	* posix/glob.c (__lstat64): New macro.
	(is_dir): New function.
	(glob, glob_in_dir): Match symlinks even if they are dangling.
	(link_stat, link_exists_p): Remove.  All uses removed.
2017-09-08 15:51:25 +02:00

377 lines
15 KiB
Makefile

# Copyright (C) 1991-2017 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/>.
#
# Sub-makefile for POSIX portion of the library.
#
subdir := posix
include ../Makeconfig
headers := sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h \
glob.h regex.h wordexp.h fnmatch.h \
getopt.h bits/getopt_core.h bits/getopt_ext.h bits/getopt_posix.h \
bits/types.h bits/typesizes.h bits/pthreadtypes.h \
bits/pthreadtypes-arch.h bits/thread-shared-types.h \
bits/posix1_lim.h bits/posix2_lim.h bits/posix_opt.h \
bits/local_lim.h tar.h bits/utsname.h bits/confname.h \
bits/waitflags.h bits/waitstatus.h sys/unistd.h sched.h \
bits/sched.h bits/cpu-set.h re_comp.h wait.h bits/environments.h \
cpio.h spawn.h bits/unistd.h
routines := \
uname \
times \
wait waitpid wait3 wait4 waitid \
alarm sleep pause nanosleep \
fork vfork _exit \
execve fexecve execv execle execl execvp execlp execvpe \
getpid getppid \
getuid geteuid getgid getegid getgroups setuid setgid group_member \
getpgid setpgid getpgrp bsd-getpgrp setpgrp getsid setsid \
getresuid getresgid setresuid setresgid \
pathconf sysconf fpathconf \
glob glob64 globfree globfree64 glob_pattern_p fnmatch regex \
confstr \
getopt getopt1 \
sched_setp sched_getp sched_sets sched_gets sched_yield sched_primax \
sched_primin sched_rr_gi sched_getaffinity sched_setaffinity \
getaddrinfo gai_strerror wordexp \
pread pwrite pread64 pwrite64 \
spawn_faction_init spawn_faction_destroy spawn_faction_addclose \
spawn_faction_addopen spawn_faction_adddup2 spawn_valid_fd \
spawnattr_init spawnattr_destroy \
spawnattr_getdefault spawnattr_setdefault \
spawnattr_getflags spawnattr_setflags \
spawnattr_getpgroup spawnattr_setpgroup spawn spawnp spawni \
spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
posix_madvise \
get_child_max sched_cpucount sched_cpualloc sched_cpufree
aux := init-posix environ
tests := test-errno tstgetopt testfnm runtests runptests \
tst-preadwrite tst-preadwrite64 test-vfork regexbug1 \
tst-mmap tst-mmap-offset tst-getaddrinfo tst-truncate \
tst-truncate64 tst-fork tst-fnmatch tst-regexloc tst-dir \
tst-chmod bug-regex1 bug-regex2 bug-regex3 bug-regex4 \
tst-gnuglob tst-regex bug-regex6 bug-regex7 \
bug-regex8 bug-regex9 bug-regex10 bug-regex11 bug-regex12 \
bug-regex13 bug-regex14 bug-regex15 bug-regex16 \
bug-regex17 bug-regex18 bug-regex19 \
bug-regex21 bug-regex22 bug-regex23 bug-regex24 \
bug-regex25 bug-regex26 bug-regex27 bug-regex28 \
bug-regex29 bug-regex30 bug-regex31 bug-regex32 \
tst-nice tst-nanosleep tst-regex2 \
transbug tst-rxspencer tst-pcre tst-boost \
bug-ga1 tst-vfork1 tst-vfork2 tst-vfork3 tst-waitid \
tst-getaddrinfo2 bug-glob2 bug-glob3 tst-sysconf \
tst-execvp1 tst-execvp2 tst-execlp1 tst-execlp2 \
tst-execv1 tst-execv2 tst-execl1 tst-execl2 \
tst-execve1 tst-execve2 tst-execle1 tst-execle2 \
tst-execvp3 tst-execvp4 \
tst-execvpe1 tst-execvpe2 tst-execvpe3 tst-execvpe4 \
tst-execvpe5 tst-execvpe6 \
tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset \
bug-getopt1 bug-getopt2 bug-getopt3 bug-getopt4 \
bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35 \
tst-pathconf tst-getaddrinfo4 tst-rxspencer-no-utf8 \
tst-fnmatch3 bug-regex36 tst-getaddrinfo5 \
tst-posix_spawn-fd tst-posix_spawn-setsid \
tst-posix_fadvise tst-posix_fadvise64 \
tst-sysconf-empty-chroot tst-glob_symlinks
tests-internal := bug-regex5 bug-regex20 bug-regex33 \
tst-rfc3484 tst-rfc3484-2 tst-rfc3484-3
xtests := bug-ga2
ifeq (yes,$(build-shared))
test-srcs := globtest
tests += wordexp-test tst-exec tst-spawn tst-spawn2 tst-spawn3
endif
ifeq (yesyes,$(build-shared)$(have-thread-library))
tests += tst-getopt-cancel
endif
tests-static = tst-exec-static tst-spawn-static
tests += $(tests-static)
others := getconf
install-bin := getconf
install-others-programs := $(inst_libexecdir)/getconf
before-compile += testcases.h ptestcases.h $(objpfx)posix-conf-vars-def.h
# So they get cleaned up.
generated += $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \
annexc annexc.out wordexp-tst.out bug-regex2-mem.out \
bug-regex2.mtrace bug-regex14-mem.out bug-regex14.mtrace \
bug-regex21-mem.out bug-regex21.mtrace \
bug-regex31-mem.out bug-regex31.mtrace \
tst-rxspencer-no-utf8-mem.out tst-rxspencer-no-utf8.mtrace \
tst-getconf.out \
tst-pcre-mem.out tst-pcre.mtrace tst-boost-mem.out \
tst-boost.mtrace bug-ga2.mtrace bug-ga2-mem.out \
bug-glob2.mtrace bug-glob2-mem.out tst-vfork3-mem.out \
tst-vfork3.mtrace getconf.speclist tst-fnmatch-mem.out \
tst-fnmatch.mtrace bug-regex36.mtrace
ifeq ($(run-built-tests),yes)
ifeq (yes,$(build-shared))
tests-special += $(objpfx)globtest.out $(objpfx)wordexp-tst.out
endif
endif
# Run a test on the header files we use.
# XXX Please note that for now we ignore the result of this test.
tests-special += $(objpfx)annexc.out
ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)bug-regex2-mem.out $(objpfx)bug-regex14-mem.out \
$(objpfx)bug-regex21-mem.out $(objpfx)bug-regex31-mem.out \
$(objpfx)tst-rxspencer-no-utf8-mem.out $(objpfx)tst-pcre-mem.out \
$(objpfx)tst-boost-mem.out $(objpfx)tst-getconf.out \
$(objpfx)bug-glob2-mem.out $(objpfx)tst-vfork3-mem.out \
$(objpfx)tst-fnmatch-mem.out $(objpfx)bug-regex36-mem.out
xtests-special += $(objpfx)bug-ga2-mem.out
endif
include ../Rules
ifeq ($(run-built-tests),yes)
# globtest and wordexp-test currently only works with shared libraries
ifeq (yes,$(build-shared))
$(objpfx)globtest.out: globtest.sh $(objpfx)globtest
$(SHELL) $< $(common-objpfx) '$(test-via-rtld-prefix)' \
'$(test-program-prefix)' '$(test-wrapper-env)' > $@; \
$(evaluate-test)
$(objpfx)wordexp-tst.out: wordexp-tst.sh $(objpfx)wordexp-test
$(SHELL) $< $(common-objpfx) '$(test-program-prefix-before-env)' \
'$(run-program-env)' '$(test-program-prefix-after-env)' > $@; \
$(evaluate-test)
endif
LOCALES := cs_CZ.UTF-8 da_DK.ISO-8859-1 de_DE.ISO-8859-1 de_DE.UTF-8 \
en_US.UTF-8 es_US.ISO-8859-1 es_US.UTF-8 ja_JP.EUC-JP tr_TR.UTF-8
include ../gen-locales.mk
$(objpfx)bug-regex1.out: $(gen-locales)
$(objpfx)bug-regex4.out: $(gen-locales)
$(objpfx)bug-regex5.out: $(gen-locales)
$(objpfx)bug-regex6.out: $(gen-locales)
$(objpfx)bug-regex17.out: $(gen-locales)
$(objpfx)bug-regex18.out: $(gen-locales)
$(objpfx)bug-regex19.out: $(gen-locales)
$(objpfx)bug-regex20.out: $(gen-locales)
$(objpfx)bug-regex22.out: $(gen-locales)
$(objpfx)bug-regex23.out: $(gen-locales)
$(objpfx)bug-regex25.out: $(gen-locales)
$(objpfx)bug-regex26.out: $(gen-locales)
$(objpfx)bug-regex30.out: $(gen-locales)
$(objpfx)bug-regex32.out: $(gen-locales)
$(objpfx)bug-regex33.out: $(gen-locales)
$(objpfx)bug-regex34.out: $(gen-locales)
$(objpfx)bug-regex35.out: $(gen-locales)
$(objpfx)tst-fnmatch.out: $(gen-locales)
$(objpfx)tst-fnmatch4.out: $(gen-locales)
$(objpfx)tst-fnmatch5.out: $(gen-locales)
$(objpfx)tst-regex.out: $(gen-locales)
$(objpfx)tst-regex2.out: $(gen-locales)
$(objpfx)tst-regexloc.out: $(gen-locales)
$(objpfx)tst-rxspencer.out: $(gen-locales)
$(objpfx)tst-rxspencer-no-utf8.out: $(gen-locales)
endif
# If we will use the generic uname implementation, we must figure out what
# it will say by examining the system, and write the results in config-name.h.
uname.c: $(objpfx)config-name.h
$(objpfx)config-name.h: $(..)scripts/config-uname.sh $(common-objpfx)config.make
$(make-target-directory)
$< '$(config-os)' '$(config-release)' \
'$(config-machine)-$(config-vendor)' > $@.new
mv -f $@.new $@
CFLAGS-getaddrinfo.c = -DRESOLVER -fexceptions
CFLAGS-pause.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-pread.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-pread64.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-pwrite.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-pwrite64.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-sleep.c = -fexceptions
CFLAGS-wait.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-waitid.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-waitpid.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-getopt.c = -fexceptions
CFLAGS-wordexp.c = -fexceptions
CFLAGS-wordexp.os = -fomit-frame-pointer
CFLAGS-sysconf.c = -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
CFLAGS-pathconf.c = -fexceptions
CFLAGS-fpathconf.c = -fexceptions
CFLAGS-spawn.c = -fexceptions
CFLAGS-spawn.os = -fomit-frame-pointer
CFLAGS-spawnp.c = -fexceptions
CFLAGS-spawnp.os = -fomit-frame-pointer
CFLAGS-spawni.c = -fexceptions
CFLAGS-spawni.os = -fomit-frame-pointer
CFLAGS-glob.c = $(uses-callbacks) -fexceptions
CFLAGS-glob64.c = $(uses-callbacks) -fexceptions
CFLAGS-getconf.c = -DGETCONF_DIR='"$(libexecdir)/getconf"'
CFLAGS-execve.os = -fomit-frame-pointer
CFLAGS-fexecve.os = -fomit-frame-pointer
CFLAGS-execv.os = -fomit-frame-pointer
CFLAGS-execle.os = -fomit-frame-pointer
CFLAGS-execl.os = -fomit-frame-pointer
CFLAGS-execvp.os = -fomit-frame-pointer
CFLAGS-execlp.os = -fomit-frame-pointer
CFLAGS-nanosleep.c = -fexceptions -fasynchronous-unwind-tables
tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
--none random --col --color --colour
tst-exec-ARGS = -- $(host-test-program-cmd)
tst-exec-static-ARGS = $(tst-exec-ARGS)
tst-execvpe5-ARGS = -- $(host-test-program-cmd)
tst-spawn-ARGS = -- $(host-test-program-cmd)
tst-spawn-static-ARGS = $(tst-spawn-ARGS)
tst-dir-ARGS = `pwd` `cd $(common-objdir)/$(subdir); pwd` `cd $(common-objdir); pwd` $(objpfx)tst-dir
tst-chmod-ARGS = $(objdir)
tst-vfork3-ARGS = --test-dir=$(objpfx)
tst-rxspencer-ARGS = --utf8 rxspencer/tests
tst-rxspencer-no-utf8-ARGS = rxspencer/tests
tst-pcre-ARGS = PCRE.tests
tst-boost-ARGS = BOOST.tests
bug-glob1-ARGS = "$(objpfx)"
tst-execvp3-ARGS = --test-dir=$(objpfx)
testcases.h: TESTS TESTS2C.sed
LC_ALL=C sed -f TESTS2C.sed < $< > $@T
mv -f $@T $@
ptestcases.h: PTESTS PTESTS2C.sed
LC_ALL=C sed -f PTESTS2C.sed < $< > $@T
mv -f $@T $@
$(objpfx)tst-getopt-cancel: $(shared-thread-library)
test-xfail-annexc = yes
$(objpfx)annexc.out: $(objpfx)annexc
$(dir $<)$(notdir $<) '$(CC)' \
'$(patsubst %,-I../%,$(sorted-subdirs)) -I../include $(+sysdep-includes) $(sysincludes) -I..' > $@; \
$(evaluate-test)
annexc-CFLAGS = -O
$(objpfx)annexc: annexc.c
$(native-compile)
tst-fnmatch-ENV += MALLOC_TRACE=$(objpfx)tst-fnmatch.mtrace
$(objpfx)tst-fnmatch-mem.out: $(objpfx)tst-fnmatch.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-fnmatch.mtrace > $@; \
$(evaluate-test)
bug-regex2-ENV = MALLOC_TRACE=$(objpfx)bug-regex2.mtrace
$(objpfx)bug-regex2-mem.out: $(objpfx)bug-regex2.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-regex2.mtrace > $@; \
$(evaluate-test)
bug-regex14-ENV = MALLOC_TRACE=$(objpfx)bug-regex14.mtrace
$(objpfx)bug-regex14-mem.out: $(objpfx)bug-regex14.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-regex14.mtrace > $@; \
$(evaluate-test)
bug-regex21-ENV = MALLOC_TRACE=$(objpfx)bug-regex21.mtrace
$(objpfx)bug-regex21-mem.out: $(objpfx)bug-regex21.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-regex21.mtrace > $@; \
$(evaluate-test)
bug-regex31-ENV = MALLOC_TRACE=$(objpfx)bug-regex31.mtrace
$(objpfx)bug-regex31-mem.out: $(objpfx)bug-regex31.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-regex31.mtrace > $@; \
$(evaluate-test)
bug-regex36-ENV = MALLOC_TRACE=$(objpfx)bug-regex36.mtrace
$(objpfx)bug-regex36-mem.out: $(objpfx)bug-regex36.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-regex36.mtrace > $@; \
$(evaluate-test)
tst-vfork3-ENV = MALLOC_TRACE=$(objpfx)tst-vfork3.mtrace
$(objpfx)tst-vfork3-mem.out: $(objpfx)tst-vfork3.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-vfork3.mtrace > $@; \
$(evaluate-test)
# tst-rxspencer.mtrace is not generated, only
# tst-rxspencer-no-utf8.mtrace, since otherwise the file has almost
# 100M and takes very long time to process.
tst-rxspencer-no-utf8-ENV += MALLOC_TRACE=$(objpfx)tst-rxspencer-no-utf8.mtrace
$(objpfx)tst-rxspencer-no-utf8-mem.out: $(objpfx)tst-rxspencer-no-utf8.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-rxspencer-no-utf8.mtrace \
> $@; \
$(evaluate-test)
tst-pcre-ENV = MALLOC_TRACE=$(objpfx)tst-pcre.mtrace
$(objpfx)tst-pcre-mem.out: $(objpfx)tst-pcre.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-pcre.mtrace > $@; \
$(evaluate-test)
tst-boost-ENV = MALLOC_TRACE=$(objpfx)tst-boost.mtrace
$(objpfx)tst-boost-mem.out: $(objpfx)tst-boost.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-boost.mtrace > $@; \
$(evaluate-test)
$(objpfx)tst-getconf.out: tst-getconf.sh $(objpfx)getconf
$(SHELL) $< $(common-objpfx) '$(built-program-cmd)' > $@; \
$(evaluate-test)
$(objpfx)bug-ga2-mem.out: $(objpfx)bug-ga2.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-ga2.mtrace > $@; \
$(evaluate-test)
bug-ga2-ENV = MALLOC_TRACE=$(objpfx)bug-ga2.mtrace
bug-glob2-ENV = MALLOC_TRACE=$(objpfx)bug-glob2.mtrace
$(objpfx)bug-glob2-mem.out: $(objpfx)bug-glob2.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-glob2.mtrace > $@; \
$(evaluate-test)
$(inst_libexecdir)/getconf: $(inst_bindir)/getconf \
$(objpfx)getconf.speclist FORCE
$(addprefix $(..)./scripts/mkinstalldirs ,\
$(filter-out $(wildcard $@),$@))
while read spec; do \
ln -f $< $@/$$spec.new || $(INSTALL_PROGRAM) $< $@/$$spec.new; \
mv -f $@/$$spec.new $@/$$spec; \
done < $(objpfx)getconf.speclist
$(objpfx)getconf.speclist: getconf-speclist.c posix-envs.def
$(compile.c) -E -o - \
| sed -n -e '/@@@PRESENT_/s/@@@PRESENT_//p' > $@.new
mv -f $@.new $@
# This file is only actually needed at install time. But forcing it to
# be built both makes it available for eyeball inspection and avoids the
# surprise of things that look like compilation being done by 'make install'.
others: $(objpfx)getconf.speclist
$(objpfx)posix-conf-vars-def.h: $(..)scripts/gen-posix-conf-vars.awk \
posix-conf-vars.list Makefile
$(make-target-directory)
$(AWK) -f $(filter-out Makefile, $^) > $@.tmp
mv -f $@.tmp $@