bsd-user/freebsd/target_os_ucontext.h

   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 */
  21 typedef 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
  30 G_STATIC_ASSERT(TARGET_MCONTEXT_SIZE == sizeof(target_mcontext_t));
  31 G_STATIC_ASSERT(TARGET_UCONTEXT_SIZE == sizeof(target_ucontext_t));
  32
  33 struct target_sigframe;
  34
  35 abi_long set_sigtramp_args(CPUArchState *env, int sig,
  36                            struct target_sigframe *frame,
  37                            abi_ulong frame_addr,
  38                            struct target_sigaction *ka);
  39 abi_long get_mcontext(CPUArchState *env, target_mcontext_t *mcp, int flags);
  40 abi_long set_mcontext(CPUArchState *env, target_mcontext_t *mcp, int srflag);
  41 abi_long get_ucontext_sigreturn(CPUArchState *env, abi_ulong target_sf,
  42                                 abi_ulong *target_uc);
  43
  44 #endif /* TARGET_OS_UCONTEXT_H */