freebsd-dev/sys/arm64/linux/linux.h
Edward Tomasz Napierala 0bf8d5d5f4 linux: Replace ifdefs in ptrace with per-architecture callbacks
It's a cleanup; no (intended) functional changes.

Sponsored By:	EPSRC
Reviewed By:	kib
Differential Revision:	https://reviews.freebsd.org/D32888
2021-11-09 11:59:17 +00:00

336 lines
8.2 KiB
C

/*-
* Copyright (c) 1994-1996 Søren Schmidt
* Copyright (c) 2013 Dmitry Chagin <dchagin@FreeBSD.org>
* Copyright (c) 2018 Turing Robotic Industries Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* $FreeBSD$
*/
#ifndef _ARM64_LINUX_H_
#define _ARM64_LINUX_H_
#include <sys/abi_compat.h>
#include <compat/linux/linux.h>
#include <arm64/linux/linux_syscall.h>
#define LINUX_DTRACE linuxulator
/* Provide a separate set of types for the Linux types */
typedef int32_t l_int;
typedef int64_t l_long;
typedef int16_t l_short;
typedef uint32_t l_uint;
typedef uint64_t l_ulong;
typedef uint16_t l_ushort;
typedef l_ulong l_uintptr_t;
typedef l_long l_clock_t;
typedef l_int l_daddr_t;
typedef l_ulong l_dev_t;
typedef l_uint l_gid_t;
typedef l_ushort l_gid16_t; /* XXX */
typedef l_uint l_uid_t;
typedef l_ushort l_uid16_t; /* XXX */
typedef l_ulong l_ino_t;
typedef l_int l_key_t;
typedef l_long l_loff_t;
typedef l_uint l_mode_t;
typedef l_long l_off_t;
typedef l_int l_pid_t;
typedef l_ulong l_size_t;
typedef l_long l_suseconds_t;
typedef l_long l_time_t;
typedef l_int l_timer_t; /* XXX */
typedef l_int l_mqd_t;
typedef l_ulong l_fd_mask;
typedef struct {
l_int val[2];
} l_fsid_t;
typedef struct {
l_time_t tv_sec;
l_suseconds_t tv_usec;
} l_timeval;
#define l_fd_set fd_set
/* Miscellaneous */
#define LINUX_AT_COUNT 20
struct l___sysctl_args
{
l_uintptr_t name;
l_int nlen;
l_uintptr_t oldval;
l_uintptr_t oldlenp;
l_uintptr_t newval;
l_uintptr_t newlen;
l_ulong __spare[4];
};
/* Resource limits */
#define LINUX_RLIMIT_CPU 0
#define LINUX_RLIMIT_FSIZE 1
#define LINUX_RLIMIT_DATA 2
#define LINUX_RLIMIT_STACK 3
#define LINUX_RLIMIT_CORE 4
#define LINUX_RLIMIT_RSS 5
#define LINUX_RLIMIT_NPROC 6
#define LINUX_RLIMIT_NOFILE 7
#define LINUX_RLIMIT_MEMLOCK 8
#define LINUX_RLIMIT_AS 9 /* Address space limit */
#define LINUX_RLIM_NLIMITS 10
struct l_rlimit {
l_ulong rlim_cur;
l_ulong rlim_max;
};
/* stat family of syscalls */
struct l_timespec {
l_time_t tv_sec;
l_long tv_nsec;
};
#define LINUX_O_DIRECTORY 000040000 /* Must be a directory */
#define LINUX_O_NOFOLLOW 000100000 /* Do not follow links */
#define LINUX_O_DIRECT 000200000 /* Direct disk access hint */
#define LINUX_O_LARGEFILE 000400000
struct l_newstat {
l_dev_t st_dev;
l_ino_t st_ino;
l_uint st_mode;
l_uint st_nlink;
l_uid_t st_uid;
l_gid_t st_gid;
l_dev_t st_rdev;
l_ulong __st_pad1;
l_off_t st_size;
l_int st_blksize;
l_int __st_pad2;
l_long st_blocks;
struct l_timespec st_atim;
struct l_timespec st_mtim;
struct l_timespec st_ctim;
l_uint __unused1;
l_uint __unused2;
};
/* sigaction flags */
#define LINUX_SA_NOCLDSTOP 0x00000001
#define LINUX_SA_NOCLDWAIT 0x00000002
#define LINUX_SA_SIGINFO 0x00000004
#define LINUX_SA_RESTORER 0x04000000
#define LINUX_SA_ONSTACK 0x08000000
#define LINUX_SA_RESTART 0x10000000
#define LINUX_SA_INTERRUPT 0x20000000 /* XXX */
#define LINUX_SA_NOMASK 0x40000000 /* SA_NODEFER */
#define LINUX_SA_ONESHOT 0x80000000 /* SA_RESETHAND */
/* sigprocmask actions */
#define LINUX_SIG_BLOCK 0
#define LINUX_SIG_UNBLOCK 1
#define LINUX_SIG_SETMASK 2
/* sigaltstack */
#define LINUX_MINSIGSTKSZ 2048 /* XXX */
typedef void (*l_handler_t)(l_int);
typedef struct {
l_handler_t lsa_handler;
l_ulong lsa_flags;
l_uintptr_t lsa_restorer;
l_sigset_t lsa_mask;
} l_sigaction_t; /* XXX */
typedef struct {
l_uintptr_t ss_sp;
l_int ss_flags;
l_size_t ss_size;
} l_stack_t;
#define LINUX_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define LINUX_SI_MAX_SIZE 128
#define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE - \
LINUX_SI_PREAMBLE_SIZE) / sizeof(l_int))
typedef union l_sigval {
l_int sival_int;
l_uintptr_t sival_ptr;
} l_sigval_t;
typedef struct l_siginfo {
l_int lsi_signo;
l_int lsi_errno;
l_int lsi_code;
union {
l_int _pad[LINUX_SI_PAD_SIZE];
struct {
l_pid_t _pid;
l_uid_t _uid;
} _kill;
struct {
l_timer_t _tid;
l_int _overrun;
char _pad[sizeof(l_uid_t) - sizeof(int)];
union l_sigval _sigval;
l_uint _sys_private;
} _timer;
struct {
l_pid_t _pid; /* sender's pid */
l_uid_t _uid; /* sender's uid */
union l_sigval _sigval;
} _rt;
struct {
l_pid_t _pid; /* which child */
l_uid_t _uid; /* sender's uid */
l_int _status; /* exit code */
l_clock_t _utime;
l_clock_t _stime;
} _sigchld;
struct {
l_uintptr_t _addr; /* Faulting insn/memory ref. */
} _sigfault;
struct {
l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
l_int _fd;
} _sigpoll;
} _sifields;
} l_siginfo_t;
#define lsi_pid _sifields._kill._pid
#define lsi_uid _sifields._kill._uid
#define lsi_tid _sifields._timer._tid
#define lsi_overrun _sifields._timer._overrun
#define lsi_sys_private _sifields._timer._sys_private
#define lsi_status _sifields._sigchld._status
#define lsi_utime _sifields._sigchld._utime
#define lsi_stime _sifields._sigchld._stime
#define lsi_value _sifields._rt._sigval
#define lsi_int _sifields._rt._sigval.sival_int
#define lsi_ptr _sifields._rt._sigval.sival_ptr
#define lsi_addr _sifields._sigfault._addr
#define lsi_band _sifields._sigpoll._band
#define lsi_fd _sifields._sigpoll._fd
/*
* This structure is different from the one used by Linux,
* but it doesn't matter - it's not user-accessible. We need
* it instead of the native one because of l_siginfo.
*/
struct l_sigframe {
struct l_siginfo sf_si;
ucontext_t sf_uc;
};
union l_semun {
l_int val;
l_uintptr_t buf;
l_uintptr_t array;
l_uintptr_t __buf;
l_uintptr_t __pad;
};
struct l_ifmap {
l_ulong mem_start;
l_ulong mem_end;
l_ushort base_addr;
u_char irq;
u_char dma;
u_char port;
/* 3 bytes spare*/
};
struct l_ifreq {
union {
char ifrn_name[LINUX_IFNAMSIZ];
} ifr_ifrn;
union {
struct l_sockaddr ifru_addr;
struct l_sockaddr ifru_dstaddr;
struct l_sockaddr ifru_broadaddr;
struct l_sockaddr ifru_netmask;
struct l_sockaddr ifru_hwaddr;
l_short ifru_flags[1];
l_int ifru_ivalue;
l_int ifru_mtu;
struct l_ifmap ifru_map;
char ifru_slave[LINUX_IFNAMSIZ];
l_uintptr_t ifru_data;
} ifr_ifru;
};
#define ifr_name ifr_ifrn.ifrn_name /* Interface name */
#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
#define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
#define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r))
/* robust futexes */
struct linux_robust_list {
l_uintptr_t next;
};
struct linux_robust_list_head {
struct linux_robust_list list;
l_long futex_offset;
l_uintptr_t pending_list;
};
struct linux_pt_regset {
l_ulong x[31];
l_ulong sp;
l_ulong pc;
l_ulong cpsr;
};
struct reg;
struct syscall_info;
void bsd_to_linux_regset(const struct reg *b_reg,
struct linux_pt_regset *l_regset);
void linux_to_bsd_regset(struct reg *b_reg,
const struct linux_pt_regset *l_regset);
void linux_ptrace_get_syscall_info_machdep(const struct reg *reg,
struct syscall_info *si);
int linux_ptrace_getregs_machdep(struct thread *td, pid_t pid,
struct linux_pt_regset *l_regset);
#endif /* _ARM64_LINUX_H_ */