bsd-user/x86_64/target_arch_signal.h

   1 /*
   2  *  x86_64 signal definitions
   3  *
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #ifndef _TARGET_ARCH_SIGNAL_H_
  19 #define _TARGET_ARCH_SIGNAL_H_
  20
  21 #include "cpu.h"
  22
  23 /* Size of the signal trampolin code placed on the stack. */
  24 #define TARGET_SZSIGCODE    0
  25
  26 /* compare to  x86/include/_limits.h */
  27 #define TARGET_MINSIGSTKSZ  (512 * 4)               /* min sig stack size */
  28 #define TARGET_SIGSTKSZ     (MINSIGSTKSZ + 32768)   /* recommended size */
  29
  30 #define TARGET_MC_GET_CLEAR_RET 0x0001
  31
  32 struct target_sigcontext {
  33     /* to be added */
  34 };
  35
  36 typedef struct target_mcontext {
  37 } target_mcontext_t;
  38
  39 typedef struct target_ucontext {
  40     target_sigset_t   uc_sigmask;
  41     target_mcontext_t uc_mcontext;
  42     abi_ulong         uc_link;
  43     target_stack_t    uc_stack;
  44     int32_t           uc_flags;
  45     int32_t         __spare__[4];
  46 } target_ucontext_t;
  47
  48 struct target_sigframe {
  49     abi_ulong   sf_signum;
  50     abi_ulong   sf_siginfo;    /* code or pointer to sf_si */
  51     abi_ulong   sf_ucontext;   /* points to sf_uc */
  52     abi_ulong   sf_addr;       /* undocumented 4th arg */
  53     target_ucontext_t   sf_uc; /* = *sf_uncontext */
  54     target_siginfo_t    sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/
  55     uint32_t    __spare__[2];
  56 };
  57
  58 /*
  59  * Compare to amd64/amd64/machdep.c sendsig()
  60  * Assumes that target stack frame memory is locked.
  61  */
  62 static inline abi_long set_sigtramp_args(CPUX86State *regs,
  63         int sig, struct target_sigframe *frame, abi_ulong frame_addr,
  64         struct target_sigaction *ka)
  65 {
  66     /* XXX return -TARGET_EOPNOTSUPP; */
  67     return 0;
  68 }
  69
  70 /* Compare to amd64/amd64/machdep.c get_mcontext() */
  71 static inline abi_long get_mcontext(CPUX86State *regs,
  72                 target_mcontext_t *mcp, int flags)
  73 {
  74     /* XXX */
  75     return -TARGET_EOPNOTSUPP;
  76 }
  77
  78 /* Compare to amd64/amd64/machdep.c set_mcontext() */
  79 static inline abi_long set_mcontext(CPUX86State *regs,
  80         target_mcontext_t *mcp, int srflag)
  81 {
  82     /* XXX */
  83     return -TARGET_EOPNOTSUPP;
  84 }
  85
  86 static inline abi_long get_ucontext_sigreturn(CPUX86State *regs,
  87         abi_ulong target_sf, abi_ulong *target_uc)
  88 {
  89     /* XXX */
  90     *target_uc = 0;
  91     return -TARGET_EOPNOTSUPP;
  92 }
  93
  94 #endif /* !TARGET_ARCH_SIGNAL_H_ */