diff --git a/sys/arm64/linux/linux.h b/sys/arm64/linux/linux.h index 5e4bf3ae0680..05e5bd189b36 100644 --- a/sys/arm64/linux/linux.h +++ b/sys/arm64/linux/linux.h @@ -1,328 +1,330 @@ /*- * Copyright (c) 1994-1996 Søren Schmidt * Copyright (c) 2013 Dmitry Chagin * 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 #include #include #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; 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); #endif /* _ARM64_LINUX_H_ */ diff --git a/sys/arm64/linux/linux_machdep.c b/sys/arm64/linux/linux_machdep.c index 9172b10a5876..746c93bb86c8 100644 --- a/sys/arm64/linux/linux_machdep.c +++ b/sys/arm64/linux/linux_machdep.c @@ -1,149 +1,162 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2018 Turing Robotic Industries Inc. * Copyright (c) 2000 Marcel Moolenaar * * 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. * * $FreeBSD$ */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* DTrace init */ LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE); /* DTrace probes */ LIN_SDT_PROBE_DEFINE0(machdep, linux_mmap2, todo); /* * LINUXTODO: deduplicate; linux_execve is common across archs, except that on * amd64 compat linuxulator it calls freebsd32_exec_copyin_args. */ int linux_execve(struct thread *td, struct linux_execve_args *uap) { struct image_args eargs; char *path; int error; if (!LUSECONVPATH(td)) { error = exec_copyin_args(&eargs, uap->path, UIO_USERSPACE, uap->argp, uap->envp); } else { LCONVPATHEXIST(td, uap->path, &path); error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, uap->envp); LFREEPATH(path); } if (error == 0) error = linux_common_execve(td, &eargs); AUDIT_SYSCALL_EXIT(error == EJUSTRETURN ? 0 : error, td); return (error); } int linux_set_upcall(struct thread *td, register_t stack) { if (stack) td->td_frame->tf_sp = stack; /* * The newly created Linux thread returns * to the user space by the same path that a parent does. */ td->td_frame->tf_x[0] = 0; return (0); } /* LINUXTODO: deduplicate arm64 linux_mmap2 */ int linux_mmap2(struct thread *td, struct linux_mmap2_args *uap) { LIN_SDT_PROBE0(machdep, linux_mmap2, todo); return (linux_mmap_common(td, PTROUT(uap->addr), uap->len, uap->prot, uap->flags, uap->fd, uap->pgoff)); } int linux_mprotect(struct thread *td, struct linux_mprotect_args *uap) { return (linux_mprotect_common(td, PTROUT(uap->addr), uap->len, uap->prot)); } int linux_madvise(struct thread *td, struct linux_madvise_args *uap) { return (linux_madvise_common(td, PTROUT(uap->addr), uap->len, uap->behav)); } int linux_set_cloned_tls(struct thread *td, void *desc) { if ((uint64_t)desc >= VM_MAXUSER_ADDRESS) return (EPERM); return (cpu_set_user_tls(td, desc)); } void bsd_to_linux_regset(const struct reg *b_reg, struct linux_pt_regset *l_regset) { KASSERT(sizeof(l_regset->x) == sizeof(b_reg->x) + sizeof(l_ulong), ("%s: size mismatch\n", __func__)); memcpy(l_regset->x, b_reg->x, sizeof(b_reg->x)); l_regset->x[30] = b_reg->lr; l_regset->sp = b_reg->sp; l_regset->pc = b_reg->elr; l_regset->cpsr = b_reg->spsr; } + +void +linux_to_bsd_regset(struct reg *b_reg, const struct linux_pt_regset *l_regset) +{ + + KASSERT(sizeof(l_regset->x) == sizeof(b_reg->x) + sizeof(l_ulong), + ("%s: size mismatch\n", __func__)); + + memcpy(b_reg->x, l_regset->x, sizeof(b_reg->x)); + b_reg->sp = l_regset->sp; + b_reg->elr = l_regset->pc; + b_reg->spsr = l_regset->cpsr; +}