ffb0d016df
Move kexec_segments to host_syscall.h and pre-pend host_ to it. Correct args to host_exec_load. Sponsored by: Netflix
153 lines
4.7 KiB
C
153 lines
4.7 KiB
C
/*-
|
|
* Copyright (C) 2014 Nathan Whitehorn
|
|
* All rights reserved.
|
|
*
|
|
* 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 ``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 TOOLS GMBH 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 _HOST_SYSCALL_H
|
|
#define _HOST_SYSCALL_H
|
|
|
|
#include <stand.h>
|
|
|
|
long host_syscall(int number, ...);
|
|
|
|
/*
|
|
* Sizes taken from musl's include/alltypes.h.in and expanded for LP64 hosts
|
|
*/
|
|
typedef uint64_t host_dev_t;
|
|
typedef uint64_t host_ino_t;
|
|
typedef int64_t host_nlink_t;
|
|
typedef unsigned int host_mode_t;
|
|
typedef unsigned int host_uid_t;
|
|
typedef unsigned int host_gid_t;
|
|
typedef int64_t host_off_t;
|
|
typedef long host_blksize_t;
|
|
typedef int64_t host_blkcnt_t;
|
|
|
|
#include "stat_arch.h"
|
|
|
|
/*
|
|
* Constants for open, fcntl, etc
|
|
*
|
|
* Note: Some of these are arch dependent on Linux, but are the same for
|
|
* powerpc, x86, arm*, and riscv. We should be futureproof, though, since these
|
|
* are the 'generic' values and only older architectures (no longer supported by
|
|
* FreeBSD) vary.
|
|
*
|
|
* These are from tools/include/uapi/asm-generic/fcntl.h and use the octal
|
|
* notation. Beware, hex is used in other places creating potential confsion.
|
|
*/
|
|
#define HOST_O_RDONLY 0
|
|
#define HOST_O_WRONLY 1
|
|
#define HOST_O_RDWR 2
|
|
#define HOST_O_CREAT 00100
|
|
#define HOST_O_EXCL 00200
|
|
#define HOST_O_NOCTTY 00400
|
|
#define HOST_O_TRUNC 01000
|
|
#define HOST_O_APPEND 02000
|
|
#define HOST_O_NONBLOCK 04000
|
|
|
|
#define HOST_AT_FDCWD -100 /* Relative to current directory */
|
|
|
|
/*
|
|
* Data types
|
|
*/
|
|
struct old_utsname {
|
|
char sysname[65];
|
|
char nodename[65];
|
|
char release[65];
|
|
char version[65];
|
|
char machine[65];
|
|
};
|
|
|
|
struct host_timeval {
|
|
time_t tv_sec;
|
|
long tv_usec;
|
|
};
|
|
|
|
#define HOST_AT_FDCWD -100 /* Relative to current directory */
|
|
|
|
/* Mount flags from uapi */
|
|
#define MS_RELATIME (1 << 21)
|
|
|
|
#define HOST_REBOOT_MAGIC1 0xfee1dead
|
|
#define HOST_REBOOT_MAGIC2 672274793
|
|
#define HOST_REBOOT_CMD_KEXEC 0x45584543
|
|
|
|
/*
|
|
* Values from linux/tools/include/uapi/linux/kexec.h
|
|
*/
|
|
|
|
/*
|
|
* Values match ELF architecture types.
|
|
*/
|
|
#define HOST_KEXEC_ARCH_X86_64 (62 << 16)
|
|
#define HOST_KEXEC_ARCH_PPC64 (21 << 16)
|
|
#define HOST_KEXEC_ARCH_ARM (40 << 16)
|
|
#define HOST_KEXEC_ARCH_AARCH64 (183 << 16)
|
|
#define HOST_KEXEC_ARCH_RISCV (243 << 16)
|
|
|
|
/* Arbitrary cap on segments */
|
|
#define HOST_KEXEC_SEGMENT_MAX 16
|
|
|
|
struct host_kexec_segment {
|
|
void *buf;
|
|
int bufsz;
|
|
void *mem;
|
|
int memsz;
|
|
};
|
|
|
|
/*
|
|
* System Calls
|
|
*/
|
|
int host_close(int fd);
|
|
int host_dup(int fd);
|
|
int host_fstat(int fd, struct host_kstat *sb);
|
|
int host_getdents(int fd, void *dirp, int count);
|
|
int host_getpid(void);
|
|
int host_gettimeofday(struct host_timeval *a, void *b);
|
|
int host_kexec_load(unsigned long entry, unsigned long nsegs, struct host_kexec_segment *segs, unsigned long flags);
|
|
ssize_t host_llseek(int fd, int32_t offset_high, int32_t offset_lo, uint64_t *result, int whence);
|
|
int host_mkdir(const char *, host_mode_t);
|
|
void *host_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t off);
|
|
int host_mount(const char *src, const char *target, const char *type,
|
|
unsigned long flags, void *data);
|
|
int host_munmap(void *addr, size_t len);
|
|
int host_open(const char *path, int flags, int mode);
|
|
ssize_t host_read(int fd, void *buf, size_t nbyte);
|
|
int host_reboot(int, int, int, uintptr_t);
|
|
int host_select(int nfds, long *readfds, long *writefds, long *exceptfds,
|
|
struct host_timeval *timeout);
|
|
int host_stat(const char *path, struct host_kstat *sb);
|
|
int host_symlink(const char *path1, const char *path2);
|
|
int host_uname(struct old_utsname *);
|
|
ssize_t host_write(int fd, const void *buf, size_t nbyte);
|
|
|
|
/*
|
|
* Wrappers / one-liners
|
|
*/
|
|
#define host_getmem(size) host_mmap(0, size, 3 /* RW */, 0x22 /* ANON */, -1, 0);
|
|
|
|
#endif
|