mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-02 10:42:45 +00:00
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/ptrace.h>
|
|
#include <sys/reg.h>
|
|
|
|
#include <vm/vm_param.h>
|
|
|
|
#include <arm64/linux/linux.h>
|
|
#include <arm64/linux/linux_proto.h>
|
|
#include <compat/linux/linux_fork.h>
|
|
#include <compat/linux/linux_misc.h>
|
|
#include <compat/linux/linux_util.h>
|
|
|
|
#define LINUX_ARCH_AARCH64 0xc00000b7
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
void
|
|
linux_ptrace_get_syscall_info_machdep(const struct reg *reg,
|
|
struct syscall_info *si)
|
|
{
|
|
|
|
si->arch = LINUX_ARCH_AARCH64;
|
|
si->instruction_pointer = reg->lr;
|
|
si->stack_pointer = reg->sp;
|
|
}
|
|
|
|
int
|
|
linux_ptrace_getregs_machdep(struct thread *td __unused, pid_t pid __unused,
|
|
struct linux_pt_regset *l_regset __unused)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
linux_ptrace_peekuser(struct thread *td, pid_t pid, void *addr, void *data)
|
|
{
|
|
|
|
LINUX_RATELIMIT_MSG_OPT1("PTRACE_PEEKUSER offset %ld not implemented; "
|
|
"returning EINVAL", (uintptr_t)addr);
|
|
return (EINVAL);
|
|
}
|
|
|
|
int
|
|
linux_ptrace_pokeuser(struct thread *td, pid_t pid, void *addr, void *data)
|
|
{
|
|
|
|
LINUX_RATELIMIT_MSG_OPT1("PTRACE_POKEUSER offset %ld "
|
|
"not implemented; returning EINVAL", (uintptr_t)addr);
|
|
return (EINVAL);
|
|
}
|