LXR qemu/bsd-user/freebsd/target_os

   1/*
   2 * FreeBSD has a common ucontext definition for all architectures.
   3 *
   4 * Copyright 2021 Warner Losh <imp@bsdimp.com>
   5 *
   6 * SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
   7 */
   8#ifndef TARGET_OS_UCONTEXT_H
   9#define TARGET_OS_UCONTEXT_H
  10
  11/*
  12 * Defines the common bits for all of FreeBSD's architectures. Has to be
  13 * included AFTER the MD target_mcontext_t is defined, however, so can't
  14 * be in the grab-bag that is target_os_signal.h.
  15 */
  16
  17/* See FreeBSD's sys/ucontext.h */
  18#define TARGET_MC_GET_CLEAR_RET 0x0001
  19
  20/* FreeBSD's sys/_ucontext.h structures */
  21typedef struct target_ucontext {
  22    target_sigset_t     uc_sigmask;
  23    target_mcontext_t   uc_mcontext;
  24    abi_ulong           uc_link;
  25    target_stack_t      uc_stack;
  26    int32_t             uc_flags;
  27    int32_t             __spare__[4];
  28} target_ucontext_t;
  29
  30G_STATIC_ASSERT(TARGET_MCONTEXT_SIZE == sizeof(target_mcontext_t));
  31G_STATIC_ASSERT(TARGET_UCONTEXT_SIZE == sizeof(target_ucontext_t));
  32
  33struct target_sigframe;
  34
  35abi_long set_sigtramp_args(CPUArchState *env, int sig,
  36                           struct target_sigframe *frame,
  37                           abi_ulong frame_addr,
  38                           struct target_sigaction *ka);
  39abi_long get_mcontext(CPUArchState *env, target_mcontext_t *mcp, int flags);
  40abi_long set_mcontext(CPUArchState *env, target_mcontext_t *mcp, int srflag);
  41abi_long get_ucontext_sigreturn(CPUArchState *env, abi_ulong target_sf,
  42                                abi_ulong *target_uc);
  43
  44#endif /* TARGET_OS_UCONTEXT_H */
  45