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This patch makes further coding style fixes where code was breaking
lines after an operator, contrary to the GNU Coding Standards. As
with the previous patch, it is limited to files following a reasonable
approximation to GNU style already, and is not exhaustive; more such
issues remain to be fixed.
Tested for x86_64, and with build-many-glibcs.py.
* dirent/dirent.h [!_DIRENT_HAVE_D_NAMLEN
&& _DIRENT_HAVE_D_RECLEN] (_D_ALLOC_NAMLEN): Break lines before
rather than after operators.
* elf/cache.c (print_cache): Likewise.
* gshadow/fgetsgent_r.c (__fgetsgent_r): Likewise.
* htl/pt-getattr.c (__pthread_getattr_np): Likewise.
* hurd/hurdinit.c (_hurd_setproc): Likewise.
* hurd/hurdkill.c (_hurd_sig_post): Likewise.
* hurd/hurdlookup.c (__file_name_lookup_under): Likewise.
* hurd/hurdsig.c (_hurd_internal_post_signal): Likewise.
(reauth_proc): Likewise.
* hurd/lookup-at.c (__file_name_lookup_at): Likewise.
(__file_name_split_at): Likewise.
(__directory_name_split_at): Likewise.
* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Likewise.
* hurd/port2fd.c (_hurd_port2fd): Likewise.
* iconv/gconv_dl.c (do_print): Likewise.
* inet/netinet/in.h (struct sockaddr_in): Likewise.
* libio/wstrops.c (_IO_wstr_seekoff): Likewise.
* locale/setlocale.c (new_composite_name): Likewise.
* malloc/memusagestat.c (main): Likewise.
* misc/fstab.c (fstab_convert): Likewise.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_usercnt):
Likewise.
* nss/nss_compat/compat-grp.c (getgrent_next_nss): Likewise.
(getgrent_next_file): Likewise.
(internal_getgrnam_r): Likewise.
(internal_getgrgid_r): Likewise.
* nss/nss_compat/compat-initgroups.c (getgrent_next_nss):
Likewise.
(internal_getgrent_r): Likewise.
* nss/nss_compat/compat-pwd.c (getpwent_next_nss_netgr): Likewise.
(getpwent_next_nss): Likewise.
(getpwent_next_file): Likewise.
(internal_getpwnam_r): Likewise.
(internal_getpwuid_r): Likewise.
* nss/nss_compat/compat-spwd.c (getspent_next_nss_netgr):
Likewise.
(getspent_next_nss): Likewise.
(internal_getspnam_r): Likewise.
* pwd/fgetpwent_r.c (__fgetpwent_r): Likewise.
* shadow/fgetspent_r.c (__fgetspent_r): Likewise.
* string/strchr.c (STRCHR): Likewise.
* string/strchrnul.c (STRCHRNUL): Likewise.
* sysdeps/aarch64/fpu/fpu_control.h (_FPU_FPCR_IEEE): Likewise.
* sysdeps/aarch64/sfp-machine.h (_FP_CHOOSENAN): Likewise.
* sysdeps/csky/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/generic/memcopy.h (PAGE_COPY_FWD_MAYBE): Likewise.
* sysdeps/generic/symbol-hacks.h (__stack_chk_fail_local):
Likewise.
* sysdeps/gnu/netinet/ip_icmp.h (ICMP_INFOTYPE): Likewise.
* sysdeps/gnu/updwtmp.c (TRANSFORM_UTMP_FILE_NAME): Likewise.
* sysdeps/gnu/utmp_file.c (TRANSFORM_UTMP_FILE_NAME): Likewise.
* sysdeps/hppa/jmpbuf-unwind.h (_JMPBUF_UNWINDS): Likewise.
* sysdeps/mach/hurd/bits/stat.h (S_ISPARE): Likewise.
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start): Likewise.
(open_file): Likewise.
* sysdeps/mach/hurd/htl/pt-mutexattr-setprotocol.c
(pthread_mutexattr_setprotocol): Likewise.
* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
* sysdeps/mach/hurd/mmap.c (__mmap): Likewise.
* sysdeps/mach/hurd/ptrace.c (ptrace): Likewise.
* sysdeps/mach/hurd/spawni.c (__spawni): Likewise.
* sysdeps/microblaze/dl-machine.h (elf_machine_type_class):
Likewise.
(elf_machine_rela): Likewise.
* sysdeps/mips/mips32/sfp-machine.h (_FP_CHOOSENAN): Likewise.
* sysdeps/mips/mips64/sfp-machine.h (_FP_CHOOSENAN): Likewise.
* sysdeps/mips/sys/asm.h (multiple #if conditionals): Likewise.
* sysdeps/posix/rename.c (rename): Likewise.
* sysdeps/powerpc/novmx-sigjmp.c (__novmx__sigjmp_save): Likewise.
* sysdeps/powerpc/sigjmp.c (__vmx__sigjmp_save): Likewise.
* sysdeps/s390/fpu/fenv_libc.h (FPC_VALID_MASK): Likewise.
* sysdeps/s390/utf8-utf16-z9.c (gconv_end): Likewise.
* sysdeps/unix/grantpt.c (grantpt): Likewise.
* sysdeps/unix/sysv/linux/a.out.h (N_TXTOFF): Likewise.
* sysdeps/unix/sysv/linux/updwtmp.c (TRANSFORM_UTMP_FILE_NAME):
Likewise.
* sysdeps/unix/sysv/linux/utmp_file.c (TRANSFORM_UTMP_FILE_NAME):
Likewise.
* sysdeps/x86/cpu-features.c (get_common_indices): Likewise.
* time/tzfile.c (__tzfile_compute): Likewise.
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The GNU Coding Standards specify that line breaks in expressions
should go before an operator, not after one. This patch fixes various
code to do this. It only changes code that appears to be mostly
following GNU style anyway, not files and directories with
substantially different formatting. It is not exhaustive even for
files using GNU style (for example, changes to sysdeps files are
deferred for subsequent cleanups). Some files changed are shared with
gnulib, but most are specific to glibc. Changes were made manually,
with places to change found by grep (so some cases, e.g. where the
operator was followed by a comment at end of line, are particularly
liable to have been missed by grep, but I did include cases where the
operator was followed by backslash-newline).
This patch generally does not attempt to address other coding style
issues in the expressions changed (for example, missing spaces before
'(', or lack of parentheses to ensure indentation of continuation
lines properly reflects operator precedence).
Tested for x86_64, and with build-many-glibcs.py.
* benchtests/bench-memmem.c (simple_memmem): Break lines before
rather than after operators.
* benchtests/bench-skeleton.c (TIMESPEC_AFTER): Likewise.
* crypt/md5.c (md5_finish_ctx): Likewise.
* crypt/sha256.c (__sha256_finish_ctx): Likewise.
* crypt/sha512.c (__sha512_finish_ctx): Likewise.
* elf/cache.c (load_aux_cache): Likewise.
* elf/dl-load.c (open_verify): Likewise.
* elf/get-dynamic-info.h (elf_get_dynamic_info): Likewise.
* elf/readelflib.c (process_elf_file): Likewise.
* elf/rtld.c (dl_main): Likewise.
* elf/sprof.c (generate_call_graph): Likewise.
* hurd/ctty-input.c (_hurd_ctty_input): Likewise.
* hurd/ctty-output.c (_hurd_ctty_output): Likewise.
* hurd/dtable.c (reauth_dtable): Likewise.
* hurd/getdport.c (__getdport): Likewise.
* hurd/hurd/signal.h (_hurd_interrupted_rpc_timeout): Likewise.
* hurd/hurd/sigpreempt.h (HURD_PREEMPT_SIGNAL_P): Likewise.
* hurd/hurdfault.c (_hurdsig_fault_catch_exception_raise):
Likewise.
* hurd/hurdioctl.c (fioctl): Likewise.
* hurd/hurdselect.c (_hurd_select): Likewise.
* hurd/hurdsig.c (_hurdsig_abort_rpcs): Likewise.
(STOPSIGS): Likewise.
* hurd/hurdstartup.c (_hurd_startup): Likewise.
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Likewise.
* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Likewise.
* hurd/msgportdemux.c (msgport_server): Likewise.
* hurd/setauth.c (_hurd_setauth): Likewise.
* include/features.h (__GLIBC_USE_DEPRECATED_SCANF): Likewise.
* libio/libioP.h [IO_DEBUG] (CHECK_FILE): Likewise.
* locale/programs/ld-ctype.c (set_class_defaults): Likewise.
* localedata/tests-mbwc/tst_swscanf.c (tst_swscanf): Likewise.
* login/tst-utmp.c (do_check): Likewise.
(simulate_login): Likewise.
* mach/lowlevellock.h (lll_lock): Likewise.
(lll_trylock): Likewise.
* math/test-fenv.c (ALL_EXC): Likewise.
* math/test-fenvinline.c (ALL_EXC): Likewise.
* misc/sys/cdefs.h (__attribute_deprecated_msg__): Likewise.
* nis/nis_call.c (__do_niscall3): Likewise.
* nis/nis_callback.c (cb_prog_1): Likewise.
* nis/nis_defaults.c (searchaccess): Likewise.
* nis/nis_findserv.c (__nis_findfastest_with_timeout): Likewise.
* nis/nis_ismember.c (internal_ismember): Likewise.
* nis/nis_local_names.c (nis_local_principal): Likewise.
* nis/nss_nis/nis-rpc.c (_nss_nis_getrpcbyname_r): Likewise.
* nis/nss_nisplus/nisplus-netgrp.c (_nss_nisplus_getnetgrent_r):
Likewise.
* nis/ypclnt.c (yp_match): Likewise.
(yp_first): Likewise.
(yp_next): Likewise.
(yp_master): Likewise.
(yp_order): Likewise.
* nscd/hstcache.c (cache_addhst): Likewise.
* nscd/initgrcache.c (addinitgroupsX): Likewise.
* nss/nss_compat/compat-pwd.c (copy_pwd_changes): Likewise.
(internal_getpwuid_r): Likewise.
* nss/nss_compat/compat-spwd.c (copy_spwd_changes): Likewise.
* posix/glob.h (__GLOB_FLAGS): Likewise.
* posix/regcomp.c (peek_token): Likewise.
(peek_token_bracket): Likewise.
(parse_expression): Likewise.
* posix/regexec.c (sift_states_iter_mb): Likewise.
(check_node_accept_bytes): Likewise.
* posix/tst-spawn3.c (do_test): Likewise.
* posix/wordexp-test.c (testit): Likewise.
* posix/wordexp.c (parse_tilde): Likewise.
(exec_comm): Likewise.
* posix/wordexp.h (__WRDE_FLAGS): Likewise.
* resource/vtimes.c (TIMEVAL_TO_VTIMES): Likewise.
* setjmp/sigjmp.c (__sigjmp_save): Likewise.
* stdio-common/printf_fp.c (__printf_fp_l): Likewise.
* stdio-common/tst-fileno.c (do_test): Likewise.
* stdio-common/vfprintf-internal.c (vfprintf): Likewise.
* stdlib/strfmon_l.c (__vstrfmon_l_internal): Likewise.
* stdlib/strtod_l.c (round_and_return): Likewise.
(____STRTOF_INTERNAL): Likewise.
* stdlib/tst-strfrom.h (TEST_STRFROM): Likewise.
* string/strcspn.c (STRCSPN): Likewise.
* string/test-memmem.c (simple_memmem): Likewise.
* termios/tcsetattr.c (tcsetattr): Likewise.
* time/alt_digit.c (_nl_parse_alt_digit): Likewise.
* time/asctime.c (asctime_internal): Likewise.
* time/strptime_l.c (__strptime_internal): Likewise.
* time/sys/time.h (timercmp): Likewise.
* time/tzfile.c (__tzfile_compute): Likewise.
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* hurd/hurdsig.c (_hurd_thread_sigstate): Set SS_DISABLE in
sigaltstack.ss_flags.
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* hurd/lookup-at.c (__file_name_lookup_at): When at_flags contains
AT_EMPTY_PATH, call __dir_lookup and __hurd_file_name_lookup_retry
directly instead of __hurd_file_name_lookup.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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* hurd/lookup-retry: Include <unistd.h>.
(__hurd_file_name_lookup_retry): Keep a ref on last result in `lastdir'.
Release it on return. Handle "pid" magical lookup retry.
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There are a lot more printf variants than there are scanf variants,
and the code for setting up and tearing down their custom FILE
variants around the call to __vf(w)printf is more complicated and
variable. Therefore, I have added _internal versions of all the
v*printf variants, rather than introducing helper routines so that
they can all directly call __vf(w)printf_internal, as was done with
scanf.
As with the scanf changes, in this patch the _internal functions still
look at the environmental mode bits and all callers pass 0 for the
flags parameter.
Several of the affected public functions had _IO_ name aliases that
were not exported (but, in one case, appeared in libio.h anyway);
I was originally planning to leave them as aliases to avoid having
to touch internal callers, but it turns out ldbl_*_alias only work
for exported symbols, so they've all been removed instead. It also
turns out there were hardly any internal callers. _IO_vsprintf and
_IO_vfprintf *are* exported, so those two stick around.
Summary for the changes to each of the affected symbols:
_IO_vfprintf, _IO_vsprintf:
All internal calls removed, thus the internal declarations, as well
as uses of libc_hidden_proto and libc_hidden_def, were also removed.
The external symbol is now exposed via uses of ldbl_strong_alias
to __vfprintf_internal and __vsprintf_internal, respectively.
_IO_vasprintf, _IO_vdprintf, _IO_vsnprintf,
_IO_vfwprintf, _IO_vswprintf,
_IO_obstack_vprintf, _IO_obstack_printf:
All internal calls removed, thus declaration in internal headers
were also removed. They were never exported, so there are no
aliases tying them to the internal functions. I.e.: entirely gone.
__vsnprintf:
Internal calls were always preceded by macros such as
#define __vsnprintf _IO_vsnprintf, and
#define __vsnprintf vsnprintf
The macros were removed and their uses replaced with calls to the
new internal function __vsnprintf_internal. Since there were no
internal calls, the internal declaration was also removed. The
external symbol is preserved with ldbl_weak_alias to ___vsnprintf.
__vfwprintf:
All internal calls converted into calls to __vfwprintf_internal,
thus the internal declaration was removed. The function is now a
wrapper that calls __vfwprintf_internal. The external symbol is
preserved.
__vswprintf:
Similarly, but no external symbol.
__vasprintf, __vdprintf, __vfprintf, __vsprintf:
New internal wrappers. Not exported.
vasprintf, vdprintf, vfprintf, vsprintf, vsnprintf,
vfwprintf, vswprintf,
obstack_vprintf, obstack_printf:
These functions used to be aliases to the respective _IO_* function,
they are now aliases to their respective __* functions.
Tested for powerpc and powerpc64le.
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* hurd/hurd/userlink.h (_hurd_userlink_move): Make new_link's
predecessor point to new_link instead of link.
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* hurd/Versions (_hurd_port_move): Export function.
* sysdeps/mach/hurd/i386/libc.abilist (_hurd_port_move): Expect
symbol.
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* hurd/hurd/userlink.h (_hurd_userlink_move): New function.
* hurd/hurd/port.h (_hurd_port_move): New function.
* sysdeps/mach/hurd/spawni.c (NEW_ULINK_TABLE): New macro.
(EXPAND_DTABLE): Use NEW_ULINK_TABLE macro for ulink_dtable.
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* hurd/Makefile (user-interfaces): Add pci.
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EIO would be understood as hardware failure, while this is software
failure.
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Return EIEIO instead of EIO
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* sysdeps/mach/hurd/i386/intr-msg.h (INTR_MSG_TRAP): Make
_hurd_intr_rpc_msg_about_to global point to start of controlled
assembly snippet. Make it check canceled flag.
* hurd/hurdsig.c (_hurdsig_abort_rpcs): Only mutate thread if it passed
the _hurd_intr_rpc_msg_about_to point.
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Remove comment on mutation
issue, remove cancel flag check.
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since we do not actually know whether the RPC was completed or not,
which makes a huge difference for e.g. write(), so better really error
out than letting caller think that the RPC did not happen.
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): When the server does not
answer to interrupt_operation, return EIO instead of EINTR.
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Seeing a server not able to get interrupted for 3s is not so surprising when
e.g. a lot of writes are happening. 1 minute allows to actually notice the
issue and be able to debug it.
* hurd/hurdsig.c (_hurd_interrupted_rpc_timeout): Set to 60000.
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Exec needs that mach_setup_thread does *not* set up TLS since it works on
another task, so we have to split this into mach_setup_tls.
* mach/mach.h (__mach_setup_tls, mach_setup_tls): Add prototypes.
* mach/setup-thread.c (__mach_setup_thread): Move TLS setup to...
(__mach_setup_tls): ... new function.
(mach_setup_tls): New alias.
* hurd/hurdsig.c (_hurdsig_init): Call __mach_setup_tls after
__mach_setup_thread.
* sysdeps/mach/hurd/profil.c (update_waiter): Likewise.
* sysdeps/mach/hurd/setitimer.c (setitimer_locked): Likewise.
* mach/Versions [libc] (mach_setup_tls): Add symbol.
* sysdeps/mach/hurd/i386/libc.abilist (mach_setup_tls): Likewise.
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* hurd/hurdsig.c (interrupted_reply_port_location): Use
DIAG_IGNORE_NEEDS_COMMENT to silence warning with GCC 6 and before.
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This reverts parts of commit 82dbf555a4d41690f63b94ccb4db4bf43d873aa0.
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* hurd/catch-signal.c (__hurd_catch_signal): Call __libc_siglongjmp
instead if siglongjmp.
(hurd_safe_memmove): Call __libc_longjmp instead of longjmp.
* hurd/hurdfault.c (faulted): Call __libc_longjmp instead of longjmp.
* include/setjmp.h (__libc_siglongjmp, __libc_longjmp): New hidden
prototypes.
* libio/iolibio.h (_IO_puts): New hidden prototype.
* libio/ioputs.c (_IO_puts): New hidden def.
* setjmp/longjmp.c (__libc_longjmp, __libc_siglongjmp): New hidden
defs.
* sysdeps/mach/hurd/sigwait.c (__sigwait): Call __libc_longjmp instead
of longjmp.
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* sysdeps/hurd/include/hurd/signal.h (_hurd_raise_signal): Add hidden
prototype.
* hurd/hurd-raise.c (_hurd_raise_signal): Add hidden def.
* hurd/Makefile ($(inlines:%=$(objpfx)%.c): Define
_HEADER_H_HIDDEN_DEF macro.
* sysdeps/hurd/include/hurd/fd.h (_hurd_fd_error,
_hurd_fd_error_signal): Add hidden prototype.
[_HURD_FD_H_HIDDEN_DEF] (_hurd_fd_error, _hurd_fd_error_signal): Add
hidden def.
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* hurd/catch-signal.c (hurd_catch_signal): Rename to
__hurd_catch_signal.
(hurd_catch_signal): New strong alias.
(hurd_safe_memset, hurd_safe_copyout, hurd_safe_copyin): Call
__hurd_catch_signal instead of hurd_catch_signal.
* hurd/exc2signal.c (_hurd_exception2signal): Add hidden def.
* hurd/hurdexec.c (_hurd_init): Add hidden def.
* hurd/hurdinit.c (_hurd_init): Add hidden def.
* hurd/hurdsig.c: Include <mach/mig_support.h>.
(_hurd_thread_sigstate): Add hidden def.
(_hurd_internal_post_signal): Use __mutex_unlock instead of
mutex_unlock.
* hurd/intern-fd.c (_hurd_intern_fd): Add hidden def.
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Add hidden def.
* hurd/path-lookup.c (hurd_file_name_path_lookup): Rename to
__hurd_file_name_path_lookup.
(hurd_file_name_path_lookup): New strong alias.
(file_name_path_lookup): Call __hurd_file_name_path_lookup instead of
hurd_file_name_path_lookup.
* mach/errstring.c (mach_error_type): Add hidden def.
* mach/msg-destroy.c (__mach_msg_destroy): Add hidden def.
* mach/mutex-init.c (__mutex_init): Add hidden def.
* mach/spin-lock.c (__spin_lock_locked, __spin_lock, __spin_unlock,
__spin_try_lock, __mutex_lock, __mutex_trylock): Add hidden defs.
* mach/spin-solid.c (__spin_lock_solid): Add hidden def.
* sysdeps/mach/hurd/getcwd.c
(_hurd_canonicalize_directory_name_internal): Rename to
__hurd_canonicalize_directory_name_internal.
(_hurd_canonicalize_directory_name_internal): New strong alias.
(__canonicalize_directory_name_internal, __getcwd): Call
__hurd_canonicalize_directory_name_internal instead of
_hurd_canonicalize_directory_name_internal.
* sysdeps/mach/hurd/mig-reply.c: Include <mach/mig_support.h>.
(__mig_get_reply_port, __mig_dealloc_reply_port, __mig_init): Add
hidden defs.
* sysdeps/hurd/include/hurd.h: New file.
* sysdeps/hurd/include/hurd/fd.h: New file.
* sysdeps/hurd/include/hurd/signal.h: New file.
* sysdeps/mach/include/lock-intern.h: New file.
* sysdeps/mach/include/mach.h: New file.
* sysdeps/mach/include/mach/mig_support.h: New file.
* sysdeps/mach/include/mach_error.h: New file.
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* hurd/hurdauth.c (_S_msg_add_auth): Call __vm_allocate and
__vm_deallocate instead of vm_allocate and vm_deallocate.
* hurd/hurdmsg.c (_S_msg_set_env_variable): Call __setenv instead of
setenv.
* hurd/hurdprio.c (_hurd_priority_which_map): Call __geteuid instead
of geteuid.
* hurd/path-lookup.c (file_name_path_scan): Call __strdup instead of
strdup.
* hurd/siginfo.c: Include <libioP.h>.
(_hurd_siginfo_handler): Call _IO_puts instead of puts.
* hurd/xattr.c (_hurd_xattr_get, _hurd_xattr_set): Call __munmap instead of
munmap.
* io/fts.c (fts_build): Call __dirfd instead of dirfd.
* mach/devstream.c: Include <libioP.h>.
(dealloc_ref): Call __mach_port_deallocate instead of
mach_port_deallocate.
(mach_open_devstream): Call _IO_fopencookie instead of fopencookie.
Call __mach_port_deallocate instead of mach_port_deallocate.
* stdlib/canonicalize.c (__realpath): Call __pathconf instead of
pathconf.
* sysdeps/mach/hurd/ifreq.c (__ifreq): Call __munmap instead of
munmap.
* sysdeps/mach/hurd/ifreq.h (__if_freereq): Likewise.
* sysdeps/mach/hurd/ptrace.c (ptrace): Call __kill instead of kill.
* sysdeps/mach/hurd/sendfile64.c (sendfile64): Call __munmap instead
of munmap.
* sysdeps/mach/hurd/socketpair.c (__socketpair): Call __close instead
of close.
* sysdeps/posix/clock_getres.c (realtime_getres): Call __sysconf
instead of sysconf.
* sysdeps/pthread/timer_gettime.c (timer_gettime): Call
__clock_gettime instead of clock_gettime.
* sysdeps/pthread/timer_routines.c (thread_func): Likewise.
* sysdeps/pthread/timer_settime.c (timer_settime): Likewise.
* sysdeps/unix/bsd/gtty.c (gtty): Call __ioctl instead of ioctl.
* sysdeps/unix/bsd/stty.c (stty): Likewise.
* sysdeps/unix/bsd/tcflow.c (tcflow): Call __tcgetattr instead of
tcgetattr.
* sysdeps/unix/clock_nanosleep.c (__clock_nanosleep): Call
__clock_gettime and __nanosleep instead of clock_gettime and
nanosleep.
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No code change.
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* hurd/hurdsig.c: Include <pthreadP.h> instead of <pthread.h>.
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Appending / to the path to be looked up would make us always follow a final
symlink, even with O_NOTRANS (since the final resolution is after the
'/'). In the O_DIRECTORY | O_NOFOLLOW case, we thus have to really open
the node and stat it, which we already do anyway, and check for
directory type.
* hurd/hurdlookup.c (__hurd_file_name_lookup): Do not append '/' to
path when flags contains O_NOFOLLOW.
* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Return ENOTDIR
if flags contains O_DIRECTORY and the result is a directory.
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The error code documented by POSIX for opening a symlink with O_NOFOLLOW
is ELOOP.
Also, if the translator does not expose symlink as a symlink translator but
as a S_IFLNK file, O_NOFOLLOW needs to return ELOOP too.
* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Return ELOOP
when opening a symlink with O_NOFOLLOW.
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* hurd/Makefile (routines): Add hurdlock.
* hurd/Versions (GLIBC_PRIVATE): Added new entry to export the above
interface.
(HURD_CTHREADS_0.3): Remove __libc_getspecific.
* hurd/hurdpid.c: Include <lowlevellock.h>
(_S_msg_proc_newids): Use lll_wait to synchronize.
* hurd/hurdsig.c: (reauth_proc): Use __mutex_lock and __mutex_unlock.
* hurd/setauth.c: Include <hurdlock.h>, use integer for synchronization.
* mach/Makefile (lock-headers): Remove machine-lock.h.
* mach/lock-intern.h: Include <lowlevellock.h> instead of
<machine-lock.h>.
(__spin_lock_t): New type.
(__SPIN_LOCK_INITIALIZER): New macro.
(__spin_lock, __spin_unlock, __spin_try_lock, __spin_lock_locked,
__mutex_init, __mutex_lock_solid, __mutex_unlock_solid, __mutex_lock,
__mutex_unlock, __mutex_trylock): Use lll to implement locks.
* mach/mutex-init.c: Include <lowlevellock.h> instead of <cthreads.h>.
(__mutex_init): Initialize with lll.
* manual/errno.texi (EOWNERDEAD, ENOTRECOVERABLE): New errno values.
* sysdeps/mach/Makefile: Add libmachuser as dependencies for libs
needing lll.
* sysdeps/mach/hurd/bits/errno.h: Regenerate.
* sysdeps/mach/hurd/cthreads.c (__libc_getspecific): Remove function.
* sysdeps/mach/hurd/bits/libc-lock.h: Remove file.
* sysdeps/mach/hurd/setpgid.c: Include <lowlevellock.h>.
(__setpgid): Use lll for synchronization.
* sysdeps/mach/hurd/setsid.c: Likewise with __setsid.
* sysdeps/mach/bits/libc-lock.h: Include <tls.h> and <lowlevellock.h>
instead of <cthreads.h>.
(_IO_lock_inexpensive): New macro
(__libc_lock_recursive_t, __rtld_lock_recursive_t): New structures.
(__libc_lock_self0): New declaration.
(__libc_lock_owner_self): New macro.
(__libc_key_t): Remove type.
(_LIBC_LOCK_INITIALIZER): New macro.
(__libc_lock_define_initialized, __libc_lock_init, __libc_lock_fini,
__libc_lock_fini_recursive, __rtld_lock_fini_recursive,
__libc_lock_lock, __libc_lock_trylock, __libc_lock_unlock,
__libc_lock_define_initialized_recursive,
__rtld_lock_define_initialized_recursive,
__libc_lock_init_recursive, __libc_lock_trylock_recursive,
__libc_lock_lock_recursive, __libc_lock_unlock_recursive,
__rtld_lock_initialize, __rtld_lock_trylock_recursive,
__rtld_lock_lock_recursive, __rtld_lock_unlock_recursive
__libc_once_define, __libc_mutex_unlock): Reimplement with lll.
(__libc_lock_define_recursive, __rtld_lock_define_recursive,
_LIBC_LOCK_RECURSIVE_INITIALIZER, _RTLD_LOCK_RECURSIVE_INITIALIZER):
New macros.
Include <libc-lockP.h> to reimplement libc_key* with pthread_key*.
* hurd/hurdlock.c: New file.
* hurd/hurdlock.h: New file.
* mach/lowlevellock.h: New file
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* hurd/Versions (HURD_CTHREADS_0.3): Rename weak refs cthread_fork,
cthread_detach, pthread_getattr_np, pthread_attr_getstack,
cthread_keycreate, cthread_getspecific, cthread_setspecific to
__cthread_fork, __cthread_detach, __pthread_getattr_np,
__pthread_attr_getstack, __cthread_keycreate, __cthread_getspecific,
__cthread_setspecific.
* hurd/hurdsig.c (_hurdsig_init): Use __cthread_fork,
__cthread_detach, __pthread_getattr_np, __pthread_attr_getstack,
__cthread_t instead of cthread_fork, cthread_detach,
pthread_getattr_np, pthread_attr_getstack.
* sysdeps/mach/hurd/cthreads.c (cthread_keycreate): Rename to
__cthread_keycreate.
(cthread_getspecific): Rename to __cthread_getspecific.
(cthread_setspecific): Rename to __cthread_setspecific.
(__libc_getspecific): Use __cthread_getspecific instead of
cthread_getspecific.
* sysdeps/mach/hurd/libc-lock.h (__libc_key_create): Use
__cthread_keycreate instead of cthread_keycreate.
(__libc_setspecific): Use __cthread_setspecific instead of
cthread_setspecific.
* sysdeps/mach/libc-lock.h (__libc_key_create, __libc_setspecific):
Likewise.
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This gets rid of a lot of kludge and gets closer to other ports.
* hurd/Makefile (headers): Remove threadvar.h.
(inline-headers): Remove threadvar.h.
* hurd/Versions (GLIBC_2.0: Remove __hurd_sigthread_stack_base,
__hurd_sigthread_stack_end, __hurd_sigthread_variables,
__hurd_threadvar_max, __hurd_errno_location.
(HURD_CTHREADS_0.3): Add pthread_getattr_np, pthread_attr_getstack.
* hurd/hurd/signal.h: Do not include <hurd/threadvar.h>.
(_hurd_self_sigstate): Use THREAD_SELF to get _hurd_sigstate.
(_HURD_SIGNAL_H_EXTERN_INLINE): Use THREAD_SELF to get _hurd_sigstate,
unless TLS is not initialized yet, in which case we do not need a
critical section yet anyway.
* hurd/hurd/threadvar.h: Include <tls.h>, do not include
<machine-sp.h>.
(__hurd_sigthread_variables, __hurd_threadvar_max): Remove variables
declarations.
(__hurd_threadvar_index): Remove enum.
(_HURD_THREADVAR_H_EXTERN_INLINE): Remove macro.
(__hurd_threadvar_location_from_sp,__hurd_threadvar_location): Remove
inlines.
(__hurd_reply_port0): New variable declaration.
(__hurd_local_reply_port): New macro.
* hurd/hurdsig.c (__hurd_sigthread_variables): Remove variable.
(interrupted_reply_port_location): Add thread_t parameter. Use it
with THREAD_TCB to access thread-local variables.
(_hurdsig_abort_rpcs): Pass ss->thread to
interrupted_reply_port_location.
(_hurd_internal_post_signal): Likewise.
(_hurdsig_init): Use presence of cthread_fork instead of
__hurd_threadvar_stack_mask to start signal thread by hand.
Remove signal thread threadvar initialization.
* hurd/hurdstartup.c: Do not include <hurd/threadvar.h>
* hurd/sigunwind.c: Include <hurd/threadvar.h>
(_hurdsig_longjmp_from_handler): Use __hurd_local_reply_port instead
of threadvar.
* sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add
__libc_lock_self0.
(ld.GLIBC_2.0): Remove __hurd_sigthread_stack_base,
__hurd_sigthread_stack_end, __hurd_sigthread_variables.
(ld.GLIBC_PRIVATE): Add __libc_lock_self0.
* sysdeps/mach/hurd/cthreads.c: Add __libc_lock_self0.
* sysdeps/mach/hurd/dl-sysdep.c (errno, __hurd_sigthread_stack_base,
__hurd_sigthread_stack_end, __hurd_sigthread_variables, threadvars,
__hurd_threadvar_stack_offset, __hurd_threadvar_stack_mask): Do not
define variables.
* sysdeps/mach/hurd/errno-loc.c: Do not include <errno.h> and
<hurd/threadvar.h>.
[IS_IN(rtld)] (rtld_errno): New variable.
[IS_IN(rtld)] (__errno_location): New weak function.
[!IS_IN(rtld)]: Include "../../../csu/errno-loc.c".
* sysdeps/mach/hurd/errno.c: Remove file.
* sysdeps/mach/hurd/fork.c: Include <hurd/threadvar.h>
(__fork): Remove THREADVAR_SPACE macro and its use.
* sysdeps/mach/hurd/i386/init-first.c (__hurd_threadvar_max): Remove
variable.
(init): Do not initialize threadvar.
* sysdeps/mach/hurd/i386/libc.abilist (__hurd_threadvar_max): Remove
symbol.
* sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use
__hurd_local_reply_port instead of threadvar.
* sysdeps/mach/hurd/i386/tls.h (tcbhead_t): Add reply_port and
_hurd_sigstate fields.
(HURD_DESC_TLS, __LIBC_NO_TLS, THREAD_TCB): New macro.
* sysdeps/mach/hurd/i386/trampoline.c: Remove outdated comment.
* sysdeps/mach/hurd/libc-lock.h: Do not include <hurd/threadvar.h>.
(__libc_lock_owner_self): Use &__libc_lock_self0 and THREAD_SELF
instead of threadvar.
* sysdeps/mach/hurd/libc-tsd.h: Remove file.
* sysdeps/mach/hurd/mig-reply.c (GETPORT, reply_port): Remove macros.
(use_threadvar, global_reply_port): Remove variables.
(__hurd_reply_port0): New variable.
(__mig_get_reply_port): Use __hurd_local_reply_port and
__hurd_reply_port0 instead of threadvar.
(__mig_dealloc_reply_port): Likewise.
(__mig_init): Do not initialize threadvar.
* sysdeps/mach/hurd/profil.c: Fix comment.
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* hurd/hurdsig.c: Include <pthread.h>.
(_hurdsig_init): Call pthread_getattr_np and pthread_attr_getstack to
get the signal thread stack layout.
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* sysdeps/generic/thread_state.h (MACHINE_NEW_THREAD_STATE_FLAVOR):
Define macro.
* sysdeps/mach/thread_state.h (MACHINE_THREAD_STATE_FIX_NEW): New macro.
* sysdeps/mach/i386/thread_state.h
(MACHINE_NEW_THREAD_STATE_FLAVOR): New macro, defined to
i386_THREAD_STATE.
(MACHINE_THREAD_STATE_FLAVOR): Define to i386_REGS_SEGS_STATE instead of
i386_THREAD_STATE.
(MACHINE_THREAD_STATE_FIX_NEW): New macro, reads segments.
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Use
i386_REGS_SEGS_STATE instead of i386_THREAD_STATE.
* sysdeps/mach/hurd/i386/tls.h (TCB_ALIGNMENT, HURD_SEL_LDT): New
macros.
(_hurd_tls_fork): Add original thread parameter, Duplicate existing LDT
descriptor instead of creating a new one.
(_hurd_tls_new): New function, creates a new descriptor and updates tcb.
* mach/setup-thread.c: Include <ldsodefs.h>.
(__mach_setup_thread): Call _dl_allocate_tls, pass
MACHINE_NEW_THREAD_STATE_FLAVOR to __thread_set_state instead of
MACHINE_THREAD_STATE_FLAVOR, before getting
MACHINE_THREAD_STATE_FLAVOR, calling _hurd_tls_new, and setting
MACHINE_THREAD_STATE_FLAVOR with the result.
* hurd/hurdfault.c (_hurdsig_fault_init): Call
MACHINE_THREAD_STATE_FIX_NEW.
* sysdeps/mach/hurd/fork.c (__fork): Call _hurd_tls_fork for sigthread
too. Add original thread parameter.
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* bits/sigaction.h: Add include guard.
* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/tile/bits/sigaction.h: Likewise.
* hurd/hurd/signal.h: Include <bits/sigaction.h>.
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so interfaces needing it can get it.
* stdlib/errno.h (error_t): Move definition to...
* bits/types/error_t.h: ... new header.
* stdlib/Makefile (headers): Add bits/types/error_t.h.
* sysdeps/mach/hurd/bits/errno.h (error_t): Move definition to...
* sysdeps/mach/hurd/bits/types/error_t.h: ... new header.
* sysdeps/mach/hurd/errnos.awk (error_t): Likewise.
* hurd/hurd.h: Include <bits/types/error_t.h>
* hurd/hurd/fd.h: Include <bits/types/error_t.h>
* hurd/hurd/id.h: Include <errno.h> and <bits/types/error_t.h>
* hurd/hurd/lookup.h: Include <errno.h> and <bits/types/error_t.h>
* hurd/hurd/resource.h: Include <bits/types/error_t.h>
* hurd/hurd/signal.h: Include <bits/types/error_t.h>
* hurd/hurd/sigpreempt.h: Include <bits/types/error_t.h>
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* hurd/hurd.h: Include <bits/types/sigset_t.h>
* hurd/hurd/fd.h: Include <sys/select.h> and <bits/types/sigset_t.h>
(_hurd_fd_read, _hurd_fd_write): Use __loff_t instead of loff_t.
* hurd/hurd/signal.h: Include <bits/types/stack_t.h> and
<bits/types/sigset_t.h>.
[!defined __USE_GNU]: Do not #error out.
(struct hurd_sigstate): Use _NSIG instead of NSIG.
* hurd/hurd/sigpreempt.h (__need_size_t): Define.
Include <stddef.h> and <bits/types/sigset_t.h>
(struct hurd_signal_preemptor, hurd_catch_signal): Use __sighandler_t
instead of sighandler_t.
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* mach/Machrules ($(patsubst %,$(objpfx)%.h,$(user-interfaces)):
Process mig output through $(migheaderpipe).
* hurd/Makefile (migheaderpipe): Define variable.
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* hurd/hurd/fd.h (_hurd_fd_error): Fix struct initializer to be
trivial, for C++ conformity.
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thus making <hurd/port.h> and <hurd/userlink.h> includable without
_GNU_SOURCE.
* hurd/hurd/port.h: Do not include <hurd/signal.h>.
* hurd/hurd/userlink.h [!defined __USE_EXTERN_INLINES ||
!defined _LIBC || !IS_IN (libc)]: Do not include <hurd/signal.h>.
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* hurd/hurd/id.h: Include <hurd/hurd_types.h>
* hurd/hurd/ioctl.h: Include <mach/port.h>
* hurd/hurd/lookup.h: Include <hurd/hurd_types.h>
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This patch mechanically removes all remaining uses, and the
definitions, of the following libio name aliases:
name replaced with
---- -------------
_IO_FILE FILE
_IO_fpos_t __fpos_t
_IO_fpos64_t __fpos64_t
_IO_size_t size_t
_IO_ssize_t ssize_t or __ssize_t
_IO_off_t off_t
_IO_off64_t off64_t
_IO_pid_t pid_t
_IO_uid_t uid_t
_IO_wint_t wint_t
_IO_va_list va_list or __gnuc_va_list
_IO_BUFSIZ BUFSIZ
_IO_cookie_io_functions_t cookie_io_functions_t
__io_read_fn cookie_read_function_t
__io_write_fn cookie_write_function_t
__io_seek_fn cookie_seek_function_t
__io_close_fn cookie_close_function_t
I used __fpos_t and __fpos64_t instead of fpos_t and fpos64_t because
the definitions of fpos_t and fpos64_t depend on the largefile mode.
I used __ssize_t and __gnuc_va_list in a handful of headers where
namespace cleanliness might be relevant even though they're
internal-use-only. In all other cases, I used the public-namespace
name.
There are a tiny handful of places where I left a use of 'struct _IO_FILE'
alone, because it was being used together with 'struct _IO_FILE_plus'
or 'struct _IO_FILE_complete' in the same arithmetic expression.
Because this patch was almost entirely done with search and replace, I
may have introduced indentation botches. I did proofread the diff,
but I may have missed something.
The ChangeLog below calls out all of the places where this was not a
pure search-and-replace change.
Installed stripped libraries and executables are unchanged by this patch,
except that some assertions in vfscanf.c change line numbers.
* libio/libio.h (_IO_FILE): Delete; all uses changed to FILE.
(_IO_fpos_t): Delete; all uses changed to __fpos_t.
(_IO_fpos64_t): Delete; all uses changed to __fpos64_t.
(_IO_size_t): Delete; all uses changed to size_t.
(_IO_ssize_t): Delete; all uses changed to ssize_t or __ssize_t.
(_IO_off_t): Delete; all uses changed to off_t.
(_IO_off64_t): Delete; all uses changed to off64_t.
(_IO_pid_t): Delete; all uses changed to pid_t.
(_IO_uid_t): Delete; all uses changed to uid_t.
(_IO_wint_t): Delete; all uses changed to wint_t.
(_IO_va_list): Delete; all uses changed to va_list or __gnuc_va_list.
(_IO_BUFSIZ): Delete; all uses changed to BUFSIZ.
(_IO_cookie_io_functions_t): Delete; all uses changed to
cookie_io_functions_t.
(__io_read_fn): Delete; all uses changed to cookie_read_function_t.
(__io_write_fn): Delete; all uses changed to cookie_write_function_t.
(__io_seek_fn): Delete; all uses changed to cookie_seek_function_t.
(__io_close_fn): Delete: all uses changed to cookie_close_function_t.
* libio/iofopncook.c: Remove unnecessary forward declarations.
* libio/iolibio.h: Correct outdated commentary.
* malloc/malloc.c (__malloc_stats): Remove unnecessary casts.
* stdio-common/fxprintf.c (__fxprintf_nocancel):
Remove unnecessary casts.
* stdio-common/getline.c: Use _IO_getdelim directly.
Don't redefine ssize_t.
* stdio-common/printf_fp.c, stdio_common/printf_fphex.c
* stdio-common/printf_size.c: Don't redefine size_t or FILE.
Remove outdated comments.
* stdio-common/vfscanf.c: Don't redefine va_list.
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* hurd/Versions: Fix version when _hurd_exec_paths was added.
* mach/Versions: Fix version when __mach_host_self_ was added.
* sysdeps/mach/hurd/i386/ld.abilist: New file.
* sysdeps/mach/hurd/i386/libBrokenLocale.abilist: New file.
* sysdeps/mach/hurd/i386/libanl.abilist: New file.
* sysdeps/mach/hurd/i386/libc.abilist: New file.
* sysdeps/mach/hurd/i386/libcrypt.abilist: New file.
* sysdeps/mach/hurd/i386/libdl.abilist: New file.
* sysdeps/mach/hurd/i386/libm.abilist: New file.
* sysdeps/mach/hurd/i386/libnsl.abilist: New file.
* sysdeps/mach/hurd/i386/libresolv.abilist: New file.
* sysdeps/mach/hurd/i386/librt.abilist: New file.
* sysdeps/mach/hurd/i386/libutil.abilist: New file.
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* hurd/hurd/signal.h [__USE_EXTERN_INLINES][_LIBC][IS_IN(libc) ||
IS_IN(libpthread)]: Include <sigsetops.h>.
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* hurd/hurd.h (__hurd_fail): Always declare function, and provide inline
version only if __USE_EXTERN_INLINES is defined.
* hurd/hurd/fd.h (_hurd_fd_error_signal, _hurd_fd_error, __hurd_dfail,
__hurd_sockfail): Likewise.
(_hurd_fd_get): Always declare functions, and provide inline versions
only if __USE_EXTERN_INLINES and _LIBC are defined and IS_IN(libc).
* hurd/hurd/port.h (_hurd_port_init, _hurd_port_locked_get,
_hurd_port_get, _hurd_port_free, _hurd_port_locked_set,
_hurd_port_set): Always declare functions, and provide inline versions
only if __USE_EXTERN_INLINES and _LIBC are defined and
IS_IN(libc).
* hurd/hurd/signal.h (_hurd_self_sigstate, _hurd_critical_section_lock,
_hurd_critical_section_unlock): Likewise.
* hurd/hurd/threadvar.h (__hurd_threadvar_location_from_sp,
* __hurd_threadvar_location): Likewise.
* hurd/hurd/userlink.h (_hurd_userlink_link, _hurd_userlink_unlink,
_hurd_userlink_clear): Likewise.
* mach/lock-intern.h (__spin_lock_init, __spin_lock, __mutex_lock,
__mutex_unlock, __mutex_trylock): Always declare functions, and provide
inline versions only if __USE_EXTERN_INLINES and _LIBC are defined.
* mach/mach/mig_support.h (__mig_strncpy): Likewise.
* sysdeps/generic/machine-lock.h (__spin_unlock, __spin_try_lock,
__spin_lock_locked): Likewise.
* sysdeps/mach/i386/machine-lock.h (__spin_unlock, __spin_try_lock,
__spin_lock_locked): Likewise.
* mach/spin-lock.c (__USE_EXTERN_INLINES): Define to 1.
* hurd/Versions (libc: GLIBC_2.27): Add _hurd_fd_error_signal,
_hurd_fd_error, __hurd_dfail, __hurd_sockfail, _hurd_port_locked_set,
__hurd_threadvar_location_from_sp, __hurd_threadvar_location,
_hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear.
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* hurd/fcntl-internal.h: New file.
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* hurd/hurd/lookup.h (__hurd_file_name_lookup, hurd_file_name_lookup,
__hurd_file_name_split, hurd_file_name_split,
__hurd_directory_name_split, hurd_directory_name_split,
__hurd_file_name_lookup_retry, hurd_file_name_lookup_retry,
hurd_file_name_path_lookup): Make lookup function parameter take a
const char *name instead of char *name.
* hurd/hurdlookup.c (__hurd_file_name_lookup, __hurd_file_name_split,
__hurd_directory_name_split): Likewise.
* hurd/lookup-retry.c (__hurd_file_name_lookup_retry): Likewise.
* hurd/path-lookup.c (hurd_file_name_path_lookup): Likewise.
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* hurd/hurd/fd.h: Include <fcntl.h>
(__hurd_at_flags): New function.
* hurd/lookup-at.c (__file_name_lookup_at): Replace flag computation
with call to __hurd_at_flags.
* include/unistd.h (__faccessat, __faccessat_noerrno): Add declaration.
* sysdeps/mach/hurd/access.c (access_common): Move implementation to
__faccessat
(hurd_fail_seterrno, hurd_fail_noerrno): Move to sysdeps/mach/hurd/faccessat.c.
(__access_noerrno): Use __faccessat_common instead of access_common.
(__access): Likewise.
* sysdeps/mach/hurd/euidaccess.c (__euidaccess): Replace implementation
with a call to __faccessat.
* sysdeps/mach/hurd/faccessat.c (faccessat): Rename into...
(__faccessat_common): ... this. Move implementation of __access into it when
AT_FLAGS does not contain AT_EACCESS. Make it call __hurd_at_flags, add
reauthenticate_cwdir_at helper to implement AT mechanism.
(__faccessat_noerrno): New function, just calls __faccessat_common.
(__faccessat): New function, just calls __faccessat_common.
(faccessat): Define weak alias.
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From: Emilio Pozuelo Monfort <pochu27@gmail.com>
From: Svante Signell <svante.signell@gmail.com>
Pass the file paths of executable to the exec server, both relative and
absolute, which exec needs to properly execute and avertise #!-scripts.
Previously, the exec server tried to guess the name from argv[0] but argv[0]
only contains the executable name by convention.
* hurd/hurdexec.c (_hurd_exec): Deprecate function.
(_hurd_exec_paths): New function.
* hurd/hurd.h (_hurd_exec): Deprecate function.
(_hurd_exec_paths): Declare function.
* hurd/Versions: Export _hurd_exec_paths.
* sysdeps/mach/hurd/execve.c: Include <stdlib.h> and <stdio.h>
(__execve): Use __getcwd to build absolute path, and use
_hurd_exec_paths instead of _hurd_exec.
* sysdeps/mach/hurd/spawni.c: Likewise.
* sysdeps/mach/hurd/fexecve.c: Use _hurd_exec_paths instead of
_hurd_exec.
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