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/*
   This file is part of Valgrind, a dynamic binary instrumentation
   framework.

   Copyright (C) 2000-2005 Julian Seward
      jseward@acm.org
   Copyright (C) 2018-2021 Paul Floyd
      pjfloyd@wanadoo.fr

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   This program 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
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.

   The GNU General Public License is contained in the file COPYING.
*/

#ifndef VKI_AMD64_FREEBSD_H
#define VKI_AMD64_FREEBSD_H

/* PAGE_SHIFT determines the page size. */
#define VKI_PAGE_SHIFT  12UL
#define VKI_PAGE_SIZE   (1UL << VKI_PAGE_SHIFT)
#define VKI_MAX_PAGE_SHIFT      VKI_PAGE_SHIFT
#define VKI_MAX_PAGE_SIZE       VKI_PAGE_SIZE

#define  VKI_MINSIGSTKSZ   2048

//----------------------------------------------------------------------
// sys/_sigset.h
//----------------------------------------------------------------------
#define  _VKI_NSIG      128
#define  _VKI_NSIG_WORDS      4
#define  _VKI_NSIG_BPW     ((_VKI_NSIG) / (_VKI_NSIG_WORDS))

#include "vki-machine-types-amd64-freebsd.h"

typedef struct {
   vki_uint32_t   sig[_VKI_NSIG_WORDS];
} vki_sigset_t;

struct _vki_fpstate {
   unsigned short    cwd;
   unsigned short swd;
   unsigned short twd;
   unsigned short fop;
   unsigned long  rip;
   unsigned long  rdp;
   unsigned int   mxcsr;
   unsigned int   mxcsr_mask;
   unsigned int   st_space[32];  /* 8*16 bytes for each FP-reg */
   unsigned int   xmm_space[64]; /* 16*16 bytes for each XMM-reg */
   unsigned int   reserved2[24];
};

struct vki_sigcontext {
   vki_sigset_t mask;
   long    onstack;
   long    rdi;
   long    rsi;
   long    rdx;
   long    rcx;
   long    r8;
   long    r9;
   long    rax;
   long    rbx;
   long    rbp;
   long    r10;
   long    r11;
   long    r12;
   long    r13;
   long    r14;
   long    r15;
   int     trapno;
   short   fs;
   short   gs;
   long    addr;
   int     flags;
   short   es;
   short   ds;
   long    err;
   long    rip;
   long    cs;
   long    rflags;
   long    rsp;
   long    ss;
   long    len;                 /* sizeof(mcontext_t) */
   long  fpformat;
   long  ownedfp;
   struct _vki_fpstate fpstate;

   long    fsbase;
   long    gsbase;
   long    xfpustate;
   long    xfpustate_len;

   long    spare[4];
};

/*
 * Retrieved from src/sys/amd64/include/reg.h
 * Note that on 8.x trapno and err are no-more meaningful, but we
 * don't set them anyway.
 */

struct vki_user_regs_struct {
   vki_register_t r15;
   vki_register_t r14;
   vki_register_t r13;
   vki_register_t r12;
   vki_register_t r11;
   vki_register_t r10;
   vki_register_t r9;
   vki_register_t r8;
   vki_register_t rdi;
   vki_register_t rsi;
   vki_register_t rbp;
   vki_register_t rbx;
   vki_register_t rdx;
   vki_register_t rcx;
   vki_register_t rax;
   vki_uint32_t   trapno;
   vki_uint16_t   fs;
   vki_uint16_t   gs;
   vki_uint32_t   err;
   vki_uint16_t   es;
   vki_uint16_t   ds;
   vki_register_t rip;
   vki_register_t cs;
   vki_register_t rflags;
   vki_register_t rsp;
   vki_register_t ss;
};

struct vki_fpreg {
   unsigned long  fpr_env[4];
   unsigned char  fpr_acc[8][16];
   unsigned char  fpr_xacc[16][16];
   unsigned long  fpr_spare[12];
};

struct vki_dbreg {
   unsigned long  dr[16];
};

typedef vki_register_t vki_elf_greg_t;
typedef struct _vki_fpstate vki_elf_fpregset_t;

#define VKI_AT_SYSINFO     32
#define  VKI_ELF_NGREG                    \
   (sizeof (struct vki_user_regs_struct) / sizeof(vki_elf_greg_t))

typedef vki_elf_greg_t vki_elf_gregset_t[VKI_ELF_NGREG];

struct vki_mcontext {
   vki_register_t onstack; /* XXX - sigcontext compat. */
   vki_register_t rdi;     /* machine state (struct trapframe) */
   vki_register_t rsi;
   vki_register_t rdx;
   vki_register_t rcx;
   vki_register_t r8;
   vki_register_t r9;
   vki_register_t rax;
   vki_register_t rbx;
   vki_register_t rbp;
   vki_register_t r10;
   vki_register_t r11;
   vki_register_t r12;
   vki_register_t r13;
   vki_register_t r14;
   vki_register_t r15;
   vki_uint32_t   trapno;
   vki_uint16_t   fs;
   vki_uint16_t   gs;
   vki_register_t addr;
   vki_uint32_t   flags;
   vki_uint16_t   es;
   vki_uint16_t   ds;
   vki_register_t err;
   vki_register_t rip;
   vki_register_t cs;
   vki_register_t rflags;
   vki_register_t rsp;
   vki_register_t ss;

   long     len;
   long     fpformat;
   long     ownedfp;
   struct _vki_fpstate  fpstate;// __attribute__((aligned(16)));
   vki_register_t fsbase;
   vki_register_t gsbase;

   vki_register_t xfpustate;
   vki_register_t xfpustate_len;

   long  spare2[4];
};

#define VKI_FPFMT_NODEV    0x10000
#define VKI_FPFMT_XMM      0x10002

#define VKI_FPOWNED_NONE   0x20000
#define VKI_FPOWNED_FPU    0x20001
#define VKI_FPOWNED_PCB    0x20002

struct vki_sigaction_base {
   void    (*ksa_handler)(int);
   int          sa_flags;
   vki_sigset_t sa_mask;           /* mask last for extensibility */
};
typedef  struct vki_sigaction_base  vki_sigaction_toK_t;
typedef  struct vki_sigaction_base  vki_sigaction_fromK_t;

//----------------------------------------------------------------------
// sys/vdso.h
//----------------------------------------------------------------------
#define VKI_VDSO_TIMEHANDS_MD                       \
        vki_uint32_t        th_x86_shift;           \
        vki_uint32_t        th_x86_hpet_idx;        \
        vki_uint32_t        th_res[6];

struct vki_bintime {
        vki_time_t  sec;
        vki_uint64_t frac;
};

struct vki_vdso_timehands {
        vki_uint32_t        th_algo;
        vki_uint32_t        th_gen;
        vki_uint64_t        th_scale;
        vki_uint32_t        th_offset_count;
        vki_uint32_t        th_counter_mask;
        struct vki_bintime  th_offset;
        struct vki_bintime  th_boottime;
        VKI_VDSO_TIMEHANDS_MD
};


#endif /* VKI_AMD64_FREEBSD_H */