glibc/sysdeps/mach/thread_state.h
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

93 lines
3.0 KiB
C

/* Generic definitions for dealing with Mach thread states.
Copyright (C) 1994-2019 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/>. */
/* Everything else is called `thread_state', but CMU's header file is
called `thread_status'. Oh boy. */
#include <mach/thread_status.h>
/* The machine-dependent thread_state.h file can either define these
macros, or just define PC and SP to the register names. */
#ifndef MACHINE_THREAD_STATE_SET_PC
#define MACHINE_THREAD_STATE_SET_PC(ts, pc) \
((ts)->PC = (unsigned long int) (pc))
#endif
#ifndef MACHINE_THREAD_STATE_SET_SP
#ifdef STACK_GROWTH_UP
#define MACHINE_THREAD_STATE_SET_SP(ts, stack, size) \
((ts)->SP = (unsigned long int) (stack))
#else
#define MACHINE_THREAD_STATE_SET_SP(ts, stack, size) \
((ts)->SP = (unsigned long int) (stack) + (size))
#endif
#endif
/* This copies architecture-specific bits from the current thread to the new
thread state. */
#ifndef MACHINE_THREAD_STATE_FIX_NEW
# define MACHINE_THREAD_STATE_FIX_NEW(ts)
#endif
/* These functions are of use in machine-dependent signal trampoline
implementations. */
#include <string.h> /* size_t, memcpy */
#include <mach/mach_interface.h> /* __thread_get_state */
static inline int
machine_get_state (thread_t thread, struct machine_thread_all_state *state,
int flavor, void *stateptr, void *scpptr, size_t size)
{
if (state->set & (1 << flavor))
{
/* Copy the saved state. */
memcpy (scpptr, stateptr, size);
return 1;
}
else
{
/* No one asked about this flavor of state before; fetch the state
directly from the kernel into the sigcontext. */
mach_msg_type_number_t got = (size / sizeof (int));
return (! __thread_get_state (thread, flavor, scpptr, &got)
&& got == (size / sizeof (int)));
}
}
static inline int
machine_get_basic_state (thread_t thread,
struct machine_thread_all_state *state)
{
mach_msg_type_number_t count;
if (state->set & (1 << MACHINE_THREAD_STATE_FLAVOR))
return 1;
count = MACHINE_THREAD_STATE_COUNT;
if (__thread_get_state (thread, MACHINE_THREAD_STATE_FLAVOR,
(natural_t *) &state->basic,
&count) != KERN_SUCCESS
|| count != MACHINE_THREAD_STATE_COUNT)
/* What kind of thread?? */
return 0; /* XXX */
state->set |= 1 << MACHINE_THREAD_STATE_FLAVOR;
return 1;
}