| Age | Commit message (Collapse) | Author | Files | Lines |
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The startup code in csu/, and the brk and sbrk functions are
needed very early in initialization of a statically-linked program,
before the stack guard is initialized; TLS initialization also uses
memcpy, which cannot overrun its own stack. Mark all of these as
-fno-stack-protector.
We also finally introduce @libc_cv_ssp@ and @no_stack_protector@, both
substituted by the configury changes made earlier, to detect the case
when -fno-stack-protector is supported by the compiler, and
unconditionally pass it in when this is the case, whether or not
--enable-stack-protector is passed to configure. (This means that
it'll even work when the compiler's been hacked to pass
-fstack-protector by default, unless the hackage is so broken that
it does so in a way that is impossible to override.)
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Stack-protection on .o files in csu/ must be suppressed for the sake of
library startup code. This also suppresses stack-protection in tests
(which are also covered by CFLAGS-.o), though this is neither necessary
nor desirable.
So impose the rule that .o files in csu/ are necessarily C startup code,
and move the few tests in there into misc/ instead.
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When static-start-installed-name is different from
start-installed-name, we must not use the shared objects.
* csu/Makefile
(extra-objs): Add gmon-start.o when building shared library and
$(static-start-installed-name) is different from
$(start-installed-name).
$(objpfx)g$(static-start-installed-name): When building shared
library and $(static-start-installed-name) is different from
$(static-start-installed-name), revert to non-shared rule,
i.e. using $(objpfx)% and gmon-start.o.
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We compile gcrt1.o with -fPIC to support both "gcc -pg" and "gcc -pie -pg".
[BZ #17836]
* csu/Makefile (extra-objs): Add gmon-start.o if not builing
shared library. Add gmon-start.os otherwise.
($(objpfx)g$(start-installed-name)): Use $(objpfx)S%
$(objpfx)gmon-start.os if builing shared library.
($(objpfx)g$(static-start-installed-name)): Likewise.
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In <https://sourceware.org/ml/libc-alpha/2014-01/msg00196.html> I
noted it was necessary to add includes of Makeconfig early in various
subdirectory makefiles for the tests-special variable settings added
by that patch to be conditional on configuration information. No-one
commented on the general question there of whether Makeconfig should
always be included immediately after the definition of subdir.
This patch implements that early inclusion of Makeconfig in each
directory (which is a lot easier than consistent placement of includes
of Rules). Includes are added if needed, or moved up if already
present. Subdirectory "all:" targets are removed, since Makeconfig
provides one.
There is potential for further cleanups I haven't done. Rules and
Makerules have code such as
ifneq "$(findstring env,$(origin headers))" ""
headers :=
endif
to override to empty any value of various variables that came from the
environment. I think there is a case for Makeconfig setting all the
subdirectory variables (other than subdir) to empty to ensure no
outside value is going to take effect if a subdirectory fails to
define a variable. (A list of such variables, possibly out of date
and incomplete, is in manual/maint.texi.) Rules and Makerules would
give errors if Makeconfig hadn't already been included, instead of
including it themselves. The special code to override values coming
from the environment would then be obsolete and could be removed.
Tested x86_64, including that installed binaries are identical before
and after the patch.
* argp/Makefile: Include Makeconfig immediately after defining
subdir.
* assert/Makefile: Likewise.
* benchtests/Makefile: Likewise.
* catgets/Makefile: Likewise.
* conform/Makefile: Likewise.
* crypt/Makefile: Likewise.
* csu/Makefile: Likewise.
(all): Remove target.
* ctype/Makefile: Include Makeconfig immediately after defining
subdir.
* debug/Makefile: Likewise.
* dirent/Makefile: Likewise.
* dlfcn/Makefile: Likewise.
* gmon/Makefile: Likewise.
* gnulib/Makefile: Likewise.
* grp/Makefile: Likewise.
* gshadow/Makefile: Likewise.
* hesiod/Makefile: Likewise.
* hurd/Makefile: Likewise.
(all): Remove target.
* iconvdata/Makefile: Include Makeconfig immediately after
defining subdir.
* inet/Makefile: Likewise.
* intl/Makefile: Likewise.
* io/Makefile: Likewise.
* libio/Makefile: Likewise.
(all): Remove target.
* locale/Makefile: Include Makeconfig immediately after defining
subdir.
* login/Makefile: Likewise.
* mach/Makefile: Likewise.
(all): Remove target.
* malloc/Makefile: Include Makeconfig immediately after defining
subdir.
(all): Remove target.
* manual/Makefile: Include Makeconfig immediately after defining
subdir.
* math/Makefile: Likewise.
* misc/Makefile: Likewise.
* nis/Makefile: Likewise.
* nss/Makefile: Likewise.
* po/Makefile: Likewise.
(all): Remove target.
* posix/Makefile: Include Makeconfig immediately after defining
subdir.
* pwd/Makefile: Likewise.
* resolv/Makefile: Likewise.
* resource/Makefile: Likewise.
* rt/Makefile: Likewise.
* setjmp/Makefile: Likewise.
* shadow/Makefile: Likewise.
* signal/Makefile: Likewise.
* socket/Makefile: Likewise.
* soft-fp/Makefile: Likewise.
* stdio-common/Makefile: Likewise.
* stdlib/Makefile: Likewise.
* streams/Makefile: Likewise.
* string/Makefile: Likewise.
* sunrpc/Makefile: Likewise.
(all): Remove target.
* sysvipc/Makefile: Include Makeconfig immediately after defining
subdir.
* termios/Makefile: Likewise.
* time/Makefile: Likewise.
* timezone/Makefile: Likewise.
(all): Remove target.
* wcsmbs/Makefile: Include Makeconfig immediately after defining
subdir.
* wctype/Makefile: Likewise.
libidn/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
localedata/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
(all): Remove target.
nptl/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
nptl_db/ChangeLog:
* Makefile: Include Makeconfig immediately after defining subdir.
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* Makeconfig (sysdeps-srcdirs): New variable.
(sysdeps-add-ons-srcdirs): Use it.
* csu/Makefile (all-Banner-files): Use it.
* Makefile (dist-selector): New variable.
(glibc-%.tar rule): Use it. Make $(dist-separate) tarballs
contain one version-named directory.
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($(all-subdirs-targets)): Use it in place of -C option.
* Rules: Use $(..) instead of ../ if it's already defined.
* Makeconfig (subdir-srcdirs): New variable.
* csu/Makefile (all-Banner-files): Use it.
* configure.in (--enable-add-ons): Set to "yes" by default.
Handle absolute add-on directory names when looking for configure
fragments. Also look for sysdeps/*/preconfigure fragments in add-ons.
Require add-on configure to set $libc_add_on_canonical, use
that in $add_ons_sfx. Substitute add_on_subdirs with computed list
of subdir names each add-on configure set in libc_add_on_subdirs.
* configure: Regenerated.
* Makefile (%/preconfigure: %/preconfigure.in): New pattern rule.
* config.make.in (add-on-subdirs): New substituted variable.
* Makeconfig (all-subdirs): Include $(add-on-subdirs).
Remove $(add-ons), $(sysdep-subdirs).
Don't filter out $(sysdep-inhibit-subdirs).
($(common-objpfx)sysd-dirs): Target removed. Don't include it.
($(common-objpfx)sysd-sorted): Rewritten to feed Depend and Subdirs
files together to gen-sorted.awk, and $(subdirs) via -v.
(subdirs): Remove magic reordering for mach and hurd.
* scripts/gen-sorted.awk: Use subdirs from command line.
Process Subdirs and Depend files directly.
Let Subdirs files use "first dir" and "inhibit dir".
Always move elf to the end of the list.
* hurd/Depend: New file.
* sysdeps/mach/Subdirs: Use "first mach".
* Makefile (dist-separate): Remove linuxthreads.
(dist-separate-linuxthreads): Variable removed.
(glibc-%.tar rule): Use $(sysdeps-add-ons).
* Makerules ($(common-objpfx)Versions.v.i): Use $(subdirs),
not $(all-subdirs).
(sysdep-makefiles): Use $(sysdirs).
(sysdirs): Remove export.
($(+sysdir_pfx)sysd-rules): Handle absolute directory names in
$(config-sysdirs).
(+sysdir_pfx): Variable removed.
(sysd-rules): Use $(common-objpfx) in place of it.
(sysdirs): Variable moved to ...
* Makeconfig (sysdirs): ... here.
Handle absolute directory names in $(config-sysdirs).
(full_config_sysdirs): Variable removed.
* csu/Makefile: Use $(sysdirs) in vpath directive.
* math/Makefile (ulps-file): Use $(sysdirs).
* sysdeps/gnu/Makefile (errlist-c): Likewise.
($(objpfx)errlist-compat.c): Likewise.
* Makeconfig (all-Subdirs-files): Likewise.
($(common-objpfx)config.status): Likewise.
* configure.in (sysnames): Handle absolute add-on directory names.
(sysdeps_add_ons): New variable, AC_SUBST it.
Compute which add-ons contributed sysdeps directories.
* configure: Regenerated.
* config.make.in (sysdeps-add-ons): New substituted variable.
* Makerules (+sysdep_dirs, +sysdep-includes): Variables moved ...
* Makeconfig: ... to here.
(+sysdep_dirs): Append $(sysdeps-add-ons) here.
(+includes): Remove $(objpfx) include, already in $(+sysdep_dirs).
Remove $(includes).
(sysdep-makeconfigs): Use $(+sysdep_dirs).
($(common-objpfx)shlib-versions.v.i): Likewise.
* Makeconfig: Remove hair to set Makeconfig-add-on.
* sysdeps/unix/Makefile (sysdirs): Remove export.
(asm_CPP): Variable removed.
($(common-objpfx)sysd-syscalls): Pass them directly for the script.
* sysdeps/posix/Makefile: New file.
* Makerules (L_tmpnam, TMP_MAX, L_ctermid, L_cuserid): Set non-posix
values here with ?=.
* stdlib/gen-mpn-copy: File removed.
* stdlib/Makefile (distribute): Remove it.
* configure.in: Don't grok --with-gmp.
* configure: Regenerated.
* configure.in (libc_cv_idn): Don't check it; libidn/configure does it.
* configure: Regenerated.
* bare: Directory removed, saved in ports repository.
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* config.h.in: Remove HAVE_GNU_LD.
* csu/Makefile: Remove use of gnu-ld.
* csu/munch.awk: Removed.
* csu/munch-tmpl.c: Removed.
* include/libc-symbols.h: Remove use of HAVE_GNU_LD.
* posix/execl.c: Likewise.
* posix/execv.c: Likewise.
* stdio-common/psignal.c: Likewise.
* stdlib/exit.c: Likewise.
* string/strsignal.c: Likewise.
* string/tester.c: Likewise.
* sysdeps/generic/errlist.c: Likewise.
* sysdeps/generic/getenv.c: Likewise.
* sysdeps/generic/getgroups.c: Likewise.
* sysdeps/generic/init-posix.c: Likewise.
* sysdeps/posix/gettimeofday.c: Likewise.
* sysdeps/posix/system.c: Likewise.
* sysdeps/unix/bsd/init-posix.c: Likewise.
* sysdeps/unix/bsd/ulimit.c: Likewise.
* sysdeps/unix/bsd/sun/m68k/brk.S: Likewise.
* sysdeps/unix/bsd/sun/m68k/sethostid.S: Likewise.
* sysdeps/unix/bsd/sun/sparc/sethostid.S: Likewise.
* sysdeps/unix/i386/brk.S: Likewise.
* sysdeps/unix/sparc/brk.S: Likewise.
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* csu/Makefile ($(objpfx)version-info.h): Use printf in place
of echo -e for POSIX.2 portability.
Reported by Paul Jarc <prj@po.cwru.edu>.
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2004-03-08 Ulrich Drepper <drepper@redhat.com>
* Makerules: Use extra-modules.mk if modules-names is defined.
* extra-modules.mk: New file.
* dlfcn/Makefile (CPPFLAGS-modcxaatexit.c): Removed.
* elf/Makefile (CFLAGS-interp.c): Add -DNOT_IN_libc=1.
* csu/Makefile ($(objpfx)version-info.h): Pass -DNOT_IN_libc=1 to
compiler.
* Makefile (distribute): Add symbol-hacks.h.
* sysdeps/generic/symbol-hacks.h: New file.
* sysdeps/wordsize-32/symbol-hacks.h: New file.
* sysdeps/wordsize-32/divdi3.c: Define *_internal aliases for __divdi3,
__moddi3, __udivdi3, and __umoddi3.
* include/libc-symbols.h: Include <symbol-hacks.h>.
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* configure.in: Add test for -fno-unit-at-a-time.
Fix text for -fpie.
* csu/Makefile (CFLAGS-initfini.s): Add $(fno_unit_at_a_time).
* locale/Makefile (CFLAGS-loadlocale.c): Likewise.
For linuxthreads:
* Makefile (CFLAGS-pt-initfini.s): Add $(fno_unit_at_a_time).
* sysdeps/unix/sysv/linux/x86_64/Makefile (CFLAGS-pt-initfini.s):
Likewise.
For nptl:
* Makefile (CFLAGS-pt-initfini.s): Add $(fno_unit_at_a_time).
* sysdeps/unix/sysv/linux/x86_64/Makefile (CFLAGS-pt-initfini.s):
Likewise.
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* csu/Makefile ($(objpfx)version-info.h): Fix sed script to handle
banners.
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2003-06-17 Thorsten Kukuk <kukuk@suse.de>
* nis/Makefile: Remove NIS/NIS+ files from nss_compat module.
* nis/nss_compat/compat-grp.c: Don't use our own NIS/NIS+ functions,
dlopen corresponding NSS module instead.
* nis/nss_compat/compat-pwd.c: Likewise.
* nis/nss_compat/compat-spwd.c: Likewise.
* nis/nss_compat/compat-initgroups.c: Disabled for now.
* nss/Versions: Export __nss_lookup_function.
2003-06-19 Daniel Jacobowitz <drow@mvista.com>
* sysdeps/unix/sysv/linux/kernel-features.h: Update kernel features
for the SH architecture.
2003-06-25 Thorsten Kukuk <kukuk@suse.de>
* csu/Makefile: Use CPPFLAGS to find correct linux/version.h.
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* csu/Makefile: Fix Makefile warnings regarding Scrt1.
* sysdeps/ia64/elf/initfini.c (gmon_initializer): Mark with
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2003-05-28 Ulrich Drepper <drepper@redhat.com>
* include/libc-symbols.h: Define hidden attribute for real also if
LIBC_NONSHARED is defined. Patch by Jakub Jelinek.
* csu/Makefile: Add rules to build Scrt1.o.
* sysdeps/i386/elf/start.S: Make code compilable with SHARED.
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* csu/Makefile: Do compile elf-init with PIC flag since in dynamic
binaries it has to be relocatable.
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Depend on $(before-compile).
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pattern rule. The implicit rule could be ruled out when $(objpfx)
didn't exist at the time of its consideration (ugh!).
* Makerules (+make-deps): Fix target matching.
Use $(sed-remove-dotdot).
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* stdio-common/Makefile: ... not here.
* csu/Makefile ($(objpfx)initfini.s): Depend on $(before-compile).
* sysdeps/gnu/Makefile ($(objpfx)errlist-compat.c): Likewise.
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2003-04-19 Ulrich Drepper <drepper@redhat.com>
* catgets/nl_types.h: Remove __THROW marker from cancellation points.
* dirent/dirent.h: Likewise.
* dlfcn/dlfcn.h: Likewise.
* grp/grp.h: Likewise.
* iconv/iconv.h: Likewise.
* io/fcntl.h: Likewise.
* io/ftw.h: Likewise.
* libio/stdio.h: Likewise.
* misc/sys/mman.h: Likewise.
* misc/sys/select.h: Likewise.
* misc/sys/syslog.h: Likewise.
* misc/sys/uio.h: Likewise.
* posix/spawn.h: Likewise.
* posix/unistd.h: Likewise.
* posix/sys/wait.h: Likewise.
* pwd/pwd.h: Likewise.
* resolv/netdb.h: Likewise.
* rt/aio.h: Likewise.
* shadow/shadow.h: Likewise.
* signal/signal.h: Likewise.
* socket/sys/socket.h: Likewise.
* stdlib/stdlib.h: Likewise.
* streams/stropts.h: Likewise.
* string/string.h: Likewise.
* sysdeps/gnu/utmpx.h: Likewise.
* sysvipc/sys/msg.h: Likewise.
* termios/termios.h: Likewise.
* time/time.h: Likewise.
* wcsmbs/wchar.h: Likewise.
* iconv/gconv_cache.c: Include <not-cancel.h> and use non-cancelable
functions.
* misc/daemon.c: Likewise.
* sysdeps/generic/backtracesymsfd.c: Likewise.
* sysdeps/generic/check_fds.c: Likewise.
* sysdeps/unix/sysv/linux/gethostid.c: Likewise.
* sysdeps/unix/sysv/linux/not-cancel.h: New file.
* sysdeps/generic/not-cancel.h: New file.
* csu/Makefile (distribute): Add not-cancel.h.
* sysdeps/unix/sysv/linux/fatal-prepare.h: New file.
* sysdeps/unix/sysv/linux/Makefile: Define FATAL_PREPARE_INCLUDE
for assert.c and assert-perr.c to include <fatal-prepare.h>.
* sysdeps/unix/sysv/linux/Dist: Add fatal-prepare.h.
* sysdeps/posix/remove.c (remove): Rewrite. No need to restore
errno and unlink first.
* io/ftw.c (ftw_dir): In all places assume fchdir is available.
2003-04-18 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/libc_fatal.c (__libc_fatal): Use
INTERNAL_SYSCALL instead of INLINE_SYSCALL.
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* csu/tst-empty.c: New file.
* csu/Makefile (tests, tests-static): Add it.
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Add comment.
(atomic_decrement_and_test): Add comment.
2003-03-22 Jakub Jelinek <jakub@redhat.com>
* include/atomic.h (atomic_compare_and_exchange_val_acq): Add comment.
Don't define if __arch_compare_and_exchange_val_32_acq is not defined.
(atomic_compare_and_exchange_bool_acq): Add comment. Don't use
__oldval variable in the macro, since it might be macro argument.
(atomic_decrement_if_positive): Initialize __memp, remove setting
of non-existent variable.
(atomic_bit_test_set): Cast 1 to __typeof (*mem) before shifting.
* sysdeps/ia64/bits/atomic.h (atomic_exchange_and_add): Implement
using atomic_compare_and_exchange_val_acq.
(atomic_decrement_if_positive, atomic_bit_test_set): Define.
* sysdeps/s390/bits/atomic.h (__arch_compare_and_exchange_val_8_acq):
Renamed from...
(__arch_compare_and_exchange_bool_8_acq): ... this.
(__arch_compare_and_exchange_val_16_acq): Renamed from...
(__arch_compare_and_exchange_bool_16_acq): ... this.
(__arch_compare_and_exchange_val_32_acq): Return old value. Renamed
from...
(__arch_compare_and_exchange_bool_32_acq): ... this.
(__arch_compare_and_exchange_val_64_acq): Return old value. Renamed
from...
(__arch_compare_and_exchange_bool_64_acq): ... this.
(__arch_compare_and_exchange_val_32_acq): Use __typeof for local
variables types instead of assuming int.
Change prefix of local variables to __arch.
* sysdeps/generic/bits/atomic.h (arch_compare_and_exchange_acq):
Remove.
(atomic_compare_and_exchange_val_acq,
atomic_compare_and_exchange_bool_acq): Define.
* csu/tst-atomic.c: New test.
* csu/tst-atomic-long.c: New test.
* csu/Makefile (tests): Add tst-atomic and tst-atomic-long.
* malloc/memusagestat.c (main): Kill warning if uint64_t is ulong.
* sysdeps/s390/Versions: Add trailing newline.
* sysdeps/unix/sysv/linux/sysconf.c (__sysconf): Kill warning
if INTERNAL_SYSCALL_ERROR_P doesn't use its first argument.
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2002-12-31 Ulrich Drepper <drepper@redhat.com>
* string/string-inlines.c: Define __memcpy_g and __strchr_g macros
to avoid using the exported symbols. Define aliases with the
original names separately.
* include/time.h: Add libc_hidden_proto for __strftime_l.
* include/wchar.h: Add libc_hidden_proto for __wcsftime_l.
* time/strftime.c: Always use libc_hidden_def if _LIBC.
* libio/libioP.h: Add libc_hidden_proto for _IO_file_open.
* libio/fileops.c: Add libc_hidden_def for _IO_file_open.
* malloc/mtrace.c: Add libc_hidden_proto and libc_hidden_def for
tr_break.
* csu/Makefile (routines): Add dso_handle.
* csu/dso_handle.c: New file.
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* csu/Makefile ($(objpfx)elf-init.oS): Remove target, braino.
(CPPFLAGS-elf-init.oS, CFLAGS-elf-init.oS): New variables.
Turn off PIC for compiling this file.
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elf-init.o instead of compiling a PIC version.
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* Makeconfig (CPPFLAGS-.oS): Add -DLIBC_NONSHARED=1.
* csu/elf-init.c: New file.
* csu/Makefile (routines, static-only-routines): Add elf-init.
* sysdeps/alpha/elf/start.S: Use __libc_csu_init in place of _init
and __libc_csu_fini in place of _fini.
* sysdeps/arm/elf/start.S: Likewise.
* sysdeps/cris/elf/start.S: Likewise.
* sysdeps/hppa/elf/start.S: Likewise.
* sysdeps/i386/elf/start.S: Likewise.
* sysdeps/ia64/elf/start.S: Likewise.
* sysdeps/m68k/elf/start.S: Likewise.
* sysdeps/mach/hurd/powerpc/static-start.S: Likewise.
* sysdeps/mips/elf/start.S: Likewise.
* sysdeps/powerpc/powerpc32/elf/start.S: Likewise.
* sysdeps/powerpc/powerpc64/elf/start.S: Likewise.
* sysdeps/s390/s390-32/elf/start.S: Likewise.
* sysdeps/s390/s390-64/elf/start.S: Likewise.
* sysdeps/sh/elf/start.S: Likewise.
* sysdeps/sparc/sparc32/elf/start.S: Likewise.
* sysdeps/sparc/sparc64/elf/start.S: Likewise.
* sysdeps/x86_64/elf/start.S: Likewise.
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the beginning of generated target commands.
* csu/Makefile ($(objpfx)crti.o, $(objpfx)crtn.o): Add explicit
dependencies for these in case implicit rule search skipped the
nonexistent source directory.
* sysdeps/gnu/Makefile ($(objpfx)errlist.d): Give this rule all the
files with $(object-suffixes) as targets too.
* Makerules [no_deps && objpfx] (before-compile): Add $(objpfx).
and a target for it using $(make-target-directory).
* Rules (before-compile): Add $(common-objpfx)bits/stdio-lim.h.
* sysdeps/unix/sysv/linux/bits/pthreadtypes.h: Moved to ...
* sysdeps/generic/bits/pthreadtypes.h: ... here.
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changed from [USE_TLS && HAVE___THREAD].
* sysdeps/i386/dl-machine.h (elf_machine_type_class, elf_machine_rel):
Disable TLS relocs if [RTLD_BOOTSTRAP && !USE___THREAD].
* sysdeps/x86_64/dl-machine.h
(elf_machine_type_class, elf_machine_rela): Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_type_class, elf_machine_rela):
Likewise.
* include/link.h (struct link_map): Remove member l_tls_tp_initialized.
* elf |