1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 4 */
 5
 6#include <linux/stddef.h>
 7#include <linux/module.h>
 8#include <linux/fs.h>
 9#include <linux/ptrace.h>
10#include <linux/sched/mm.h>
11#include <linux/sched/task.h>
12#include <linux/sched/task_stack.h>
13#include <linux/slab.h>
14#include <asm/current.h>
15#include <asm/processor.h>
16#include <linux/uaccess.h>
17#include <as-layout.h>
18#include <mem_user.h>
19#include <registers.h>
20#include <skas.h>
21#include <os.h>
22
23void flush_thread(void)
24{
25	void *data = NULL;
26	int ret;
27
28	arch_flush_thread(&current->thread.arch);
29
30	ret = unmap(&current->mm->context.id, 0, TASK_SIZE, 1, &data);
 
 
31	if (ret) {
32		printk(KERN_ERR "flush_thread - clearing address space failed, "
33		       "err = %d\n", ret);
34		force_sig(SIGKILL);
35	}
36	get_safe_registers(current_pt_regs()->regs.gp,
37			   current_pt_regs()->regs.fp);
38
39	__switch_mm(&current->mm->context.id);
40}
41
42void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
43{
44	PT_REGS_IP(regs) = eip;
45	PT_REGS_SP(regs) = esp;
46	clear_thread_flag(TIF_SINGLESTEP);
47#ifdef SUBARCH_EXECVE1
48	SUBARCH_EXECVE1(regs->regs);
49#endif
50}
51EXPORT_SYMBOL(start_thread);

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 4 */
 5
 6#include <linux/stddef.h>
 7#include <linux/module.h>
 8#include <linux/fs.h>
 9#include <linux/ptrace.h>
10#include <linux/sched/mm.h>
11#include <linux/sched/task.h>
12#include <linux/sched/task_stack.h>
13#include <linux/slab.h>
14#include <asm/current.h>
15#include <asm/processor.h>
16#include <linux/uaccess.h>
17#include <as-layout.h>
18#include <mem_user.h>
 
19#include <skas.h>
20#include <os.h>
21
22void flush_thread(void)
23{
24	void *data = NULL;
25	int ret;
26
27	arch_flush_thread(&current->thread.arch);
28
29	ret = unmap(&current->mm->context.id, 0, STUB_START, 0, &data);
30	ret = ret || unmap(&current->mm->context.id, STUB_END,
31			   host_task_size - STUB_END, 1, &data);
32	if (ret) {
33		printk(KERN_ERR "flush_thread - clearing address space failed, "
34		       "err = %d\n", ret);
35		force_sig(SIGKILL);
36	}
37	get_safe_registers(current_pt_regs()->regs.gp,
38			   current_pt_regs()->regs.fp);
39
40	__switch_mm(&current->mm->context.id);
41}
42
43void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
44{
45	PT_REGS_IP(regs) = eip;
46	PT_REGS_SP(regs) = esp;
47	current->ptrace &= ~PT_DTRACE;
48#ifdef SUBARCH_EXECVE1
49	SUBARCH_EXECVE1(regs->regs);
50#endif
51}
52EXPORT_SYMBOL(start_thread);