Introduce arm64 linuxulator stubs
This provides stub implementations of arm64 Linux vdso and machdep, ptrace, and futex sufficient for executing an arm64 Linux 'hello world' binary. Reviewed by: andrew Sponsored by: Turing Robotic Industries Differential Revision: https://reviews.freebsd.org/D15832
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Ed Maste
parent
645f3d4345
commit
1fbaf06eba
58
sys/arm64/linux/linux_locore.s
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58
sys/arm64/linux/linux_locore.s
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2018 Turing Robotic Industries Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* arm64 Linux VDSO implementation.
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*/
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#include <machine/asm.h>
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.data
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.globl linux_platform
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linux_platform:
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.asciz "arm64"
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.text
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ENTRY(__kernel_rt_sigreturn)
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brk #0 /* LINUXTODO: implement __kernel_rt_sigreturn */
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ret
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ENTRY(__kernel_gettimeofday)
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brk #0 /* LINUXTODO: implement __kernel_gettimeofday */
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ret
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ENTRY(__kernel_clock_gettime)
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brk #0 /* LINUXTODO: implement __kernel_clock_gettime */
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ret
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ENTRY(__kernel_clock_getres)
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brk #0 /* LINUXTODO: implement __kernel_clock_getres */
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ret
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132
sys/arm64/linux/linux_machdep.c
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132
sys/arm64/linux/linux_machdep.c
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@ -0,0 +1,132 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2018 Turing Robotic Industries Inc.
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* Copyright (c) 2000 Marcel Moolenaar
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/fcntl.h>
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#include <sys/imgact.h>
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#include <sys/ktr.h>
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#include <sys/proc.h>
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#include <sys/sdt.h>
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#include <arm64/linux/linux.h>
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#include <arm64/linux/linux_proto.h>
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#include <compat/linux/linux_dtrace.h>
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#include <compat/linux/linux_emul.h>
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#include <compat/linux/linux_misc.h>
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#include <compat/linux/linux_mmap.h>
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#include <compat/linux/linux_util.h>
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/* DTrace init */
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LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
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/* DTrace probes */
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LIN_SDT_PROBE_DEFINE0(machdep, linux_set_upcall_kse, todo);
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LIN_SDT_PROBE_DEFINE0(machdep, linux_mmap2, todo);
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LIN_SDT_PROBE_DEFINE0(machdep, linux_rt_sigsuspend, todo);
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LIN_SDT_PROBE_DEFINE0(machdep, linux_sigaltstack, todo);
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LIN_SDT_PROBE_DEFINE0(machdep, linux_set_cloned_tls, todo);
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/*
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* LINUXTODO: deduplicate; linux_execve is common across archs, except that on
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* amd64 compat linuxulator it calls freebsd32_exec_copyin_args.
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*/
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int
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linux_execve(struct thread *td, struct linux_execve_args *uap)
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{
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struct image_args eargs;
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char *path;
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int error;
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LCONVPATHEXIST(td, uap->path, &path);
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error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp,
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uap->envp);
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free(path, M_TEMP);
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if (error == 0)
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error = linux_common_execve(td, &eargs);
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return (error);
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}
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/* LINUXTODO: implement (or deduplicate) arm64 linux_set_upcall_kse */
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int
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linux_set_upcall_kse(struct thread *td, register_t stack)
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{
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LIN_SDT_PROBE0(machdep, linux_set_upcall_kse, todo);
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return (EDOOFUS);
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}
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/* LINUXTODO: deduplicate arm64 linux_mmap2 */
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int
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linux_mmap2(struct thread *td, struct linux_mmap2_args *uap)
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{
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LIN_SDT_PROBE0(machdep, linux_mmap2, todo);
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return (linux_mmap_common(td, PTROUT(uap->addr), uap->len, uap->prot,
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uap->flags, uap->fd, uap->pgoff));
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}
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int
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linux_mprotect(struct thread *td, struct linux_mprotect_args *uap)
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{
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return (linux_mprotect_common(td, PTROUT(uap->addr), uap->len,
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uap->prot));
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}
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/* LINUXTODO: implement arm64 linux_rt_sigsuspend */
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int
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linux_rt_sigsuspend(struct thread *td, struct linux_rt_sigsuspend_args *uap)
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{
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LIN_SDT_PROBE0(machdep, linux_rt_sigsuspend, todo);
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return (EDOOFUS);
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}
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/* LINUXTODO: implement arm64 linux_sigaltstack */
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int
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linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap)
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{
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LIN_SDT_PROBE0(machdep, linux_sigaltstack, todo);
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return (EDOOFUS);
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}
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/* LINUXTODO: implement arm64 linux_set_cloned_tls */
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int
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linux_set_cloned_tls(struct thread *td, void *desc)
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{
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LIN_SDT_PROBE0(machdep, linux_set_cloned_tls, todo);
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return (EDOOFUS);
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}
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56
sys/arm64/linux/linux_ptrace.c
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56
sys/arm64/linux/linux_ptrace.c
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@ -0,0 +1,56 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2018 Turing Robotic Industries Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/sdt.h>
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#include <sys/proc.h>
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#include <sys/ptrace.h>
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#include <arm64/linux/linux.h>
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#include <arm64/linux/linux_proto.h>
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#include <compat/linux/linux_dtrace.h>
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/* DTrace init */
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LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
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/* DTrace probes */
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LIN_SDT_PROBE_DEFINE0(ptrace, linux_ptrace, todo);
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int
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linux_ptrace(struct thread *td, struct linux_ptrace_args *uap)
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{
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/* LINUXTODO: implement arm64 linux_ptrace */
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LIN_SDT_PROBE0(ptrace, linux_ptrace, todo);
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return (EDOOFUS);
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}
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57
sys/arm64/linux/linux_support.s
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57
sys/arm64/linux/linux_support.s
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@ -0,0 +1,57 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2018 Turing Robotic Industries Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "linux_assym.h"
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#include <machine/asm.h>
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#include "assym.inc"
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/*
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* LINUXTODO: implement futex_*
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*/
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ENTRY(futex_xchgl)
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brk #0
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ret
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ENTRY(futex_addl)
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brk #0
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ret
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ENTRY(futex_orl)
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brk #0
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ret
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ENTRY(futex_andl)
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brk #0
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ret
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ENTRY(futex_xorl)
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brk #0
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ret
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