glibc/hurd/hurdinit.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

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/* Copyright (C) 1992-2019 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
<https://www.gnu.org/licenses/>. */
#include <sys/stat.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/port.h>
#include "set-hooks.h"
#include "hurdmalloc.h" /* XXX */
int _hurd_exec_flags;
struct hurd_port *_hurd_ports;
unsigned int _hurd_nports;
mode_t _hurd_umask;
sigset_t _hurdsig_traced;
char **__libc_argv;
int __libc_argc;
error_t
_hurd_ports_use (int which, error_t (*operate) (mach_port_t))
{
if (__glibc_unlikely (_hurd_ports == NULL))
/* This means that _hurd_init has not been called yet, which is
normally only the case in the bootstrap filesystem, and there
only in the early phases of booting. */
return EGRATUITOUS;
return HURD_PORT_USE (&_hurd_ports[which], (*operate) (port));
}
DEFINE_HOOK (_hurd_subinit, (void));
__typeof (_hurd_proc_init) _hurd_new_proc_init; /* below */
/* Initialize the library data structures from the
ints and ports passed to us by the exec server.
PORTARRAY and INTARRAY are vm_deallocate'd. */
void
_hurd_init (int flags, char **argv,
mach_port_t *portarray, size_t portarraysize,
int *intarray, size_t intarraysize)
{
size_t i;
_hurd_exec_flags = flags;
_hurd_ports = malloc (portarraysize * sizeof (*_hurd_ports));
if (_hurd_ports == NULL)
__libc_fatal ("Can't allocate _hurd_ports\n");
_hurd_nports = portarraysize;
/* See what ports we were passed. */
for (i = 0; i < portarraysize; ++i)
_hurd_port_init (&_hurd_ports[i], portarray[i]);
/* When the user asks for the bootstrap port,
he will get the one the exec server passed us. */
__task_set_special_port (__mach_task_self (), TASK_BOOTSTRAP_PORT,
portarray[INIT_PORT_BOOTSTRAP]);
if (intarraysize > INIT_UMASK)
_hurd_umask = intarray[INIT_UMASK] & 0777;
else
_hurd_umask = CMASK;
if (intarraysize > INIT_TRACEMASK)
_hurdsig_traced = intarray[INIT_TRACEMASK];
/* Tell the proc server we exist, if it does. */
if (portarray[INIT_PORT_PROC] != MACH_PORT_NULL)
_hurd_new_proc_init (argv, intarray, intarraysize);
/* All done with init ints and ports. */
__vm_deallocate (__mach_task_self (),
(vm_address_t) intarray,
intarraysize * sizeof (int));
__vm_deallocate (__mach_task_self (),
(vm_address_t) portarray,
portarraysize * sizeof (mach_port_t));
if (flags & EXEC_SECURE)
{
/* XXX if secure exec, elide environment variables
which the library uses and could be security holes.
CORESERVER, COREFILE
*/
}
/* Call other things which want to do some initialization. These are not
on the __libc_subinit hook because things there like to be able to
assume the availability of the POSIX.1 services we provide. */
RUN_HOOK (_hurd_subinit, ());
}
libc_hidden_def (_hurd_init)
#include <hurd/signal.h>
/* The user can do "int _hide_arguments = 1;" to make
sure the arguments are never visible with `ps'. */
int _hide_arguments, _hide_environment;
/* Hook for things which should be initialized as soon as the proc
server is available. */
DEFINE_HOOK (_hurd_proc_subinit, (void));
/* Do startup handshaking with the proc server just installed in _hurd_ports.
Call _hurdsig_init to set up signal processing. */
void
_hurd_new_proc_init (char **argv,
const int *intarray, size_t intarraysize)
{
mach_port_t oldmsg;
struct hurd_userlink ulink;
process_t procserver;
/* Initialize the signal code; Mach exceptions will become signals. */
_hurdsig_init (intarray, intarraysize);
/* The signal thread is now prepared to receive messages.
It is safe to give the port to the proc server. */
procserver = _hurd_port_get (&_hurd_ports[INIT_PORT_PROC], &ulink);
/* Give the proc server our message port. */
__proc_setmsgport (procserver, _hurd_msgport, &oldmsg);
if (oldmsg != MACH_PORT_NULL)
/* Deallocate the old msg port we replaced. */
__mach_port_deallocate (__mach_task_self (), oldmsg);
/* Tell the proc server where our args and environment are. */
__proc_set_arg_locations (procserver,
_hide_arguments ? 0 : (vm_address_t) argv,
_hide_environment ? 0 : (vm_address_t) __environ);
_hurd_port_free (&_hurd_ports[INIT_PORT_PROC], &ulink, procserver);
/* Initialize proc server-assisted fault recovery for the signal thread. */
_hurdsig_fault_init ();
/* Call other things which want to do some initialization. These are not
on the _hurd_subinit hook because things there assume that things done
here, like _hurd_pid, are already initialized. */
RUN_HOOK (_hurd_proc_subinit, ());
/* XXX This code should probably be removed entirely at some point. This
conditional should make it reasonably usable with old gdb's for a
while. Eventually it probably makes most sense for the exec server to
mask out EXEC_SIGTRAP so the debugged program is closer to not being
able to tell it's being debugged. */
if (!__sigisemptyset (&_hurdsig_traced)
#ifdef EXEC_SIGTRAP
&& !(_hurd_exec_flags & EXEC_SIGTRAP)
#endif
)
/* This process is "traced", meaning it should stop on signals or exec.
We are all set up now to handle signals. Stop ourselves, to inform
our parent (presumably a debugger) that the exec has completed. */
__msg_sig_post (_hurd_msgport, SIGTRAP, 0, __mach_task_self ());
}
#include <shlib-compat.h>
versioned_symbol (libc, _hurd_new_proc_init, _hurd_proc_init, GLIBC_2_1);
/* Called when we get a message telling us to change our proc server port. */
error_t
_hurd_setproc (process_t procserver)
{
error_t err;
mach_port_t oldmsg;
/* Give the proc server our message port. */
if (err = __proc_setmsgport (procserver, _hurd_msgport, &oldmsg))
return err;
if (oldmsg != MACH_PORT_NULL)
/* Deallocate the old msg port we replaced. */
__mach_port_deallocate (__mach_task_self (), oldmsg);
/* Tell the proc server where our args and environment are. */
if (err = __proc_set_arg_locations (procserver,
_hide_arguments ? 0
: (vm_address_t) __libc_argv,
_hide_environment ? 0
: (vm_address_t) __environ))
return err;
/* Those calls worked, so the port looks good. */
_hurd_port_set (&_hurd_ports[INIT_PORT_PROC], procserver);
{
pid_t oldpgrp = _hurd_pgrp;
/* Call these functions again so they can fetch the
new information from the new proc server. */
RUN_HOOK (_hurd_proc_subinit, ());
if (_hurd_pgrp != oldpgrp)
{
/* Run things that want notification of a pgrp change. */
DECLARE_HOOK (_hurd_pgrp_changed_hook, (pid_t));
RUN_HOOK (_hurd_pgrp_changed_hook, (_hurd_pgrp));
}
}
return 0;
}