53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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*/
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#include <linux/stddef.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/ptrace.h>
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#include <linux/sched/mm.h>
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#include <linux/sched/task.h>
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#include <linux/sched/task_stack.h>
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#include <linux/slab.h>
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#include <asm/current.h>
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#include <asm/processor.h>
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#include <linux/uaccess.h>
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#include <as-layout.h>
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#include <mem_user.h>
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#include <skas.h>
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#include <os.h>
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void flush_thread(void)
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{
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void *data = NULL;
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int ret;
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arch_flush_thread(¤t->thread.arch);
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ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data);
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ret = ret || unmap(¤t->mm->context.id, STUB_END,
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host_task_size - STUB_END, 1, &data);
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if (ret) {
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printk(KERN_ERR "flush_thread - clearing address space failed, "
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"err = %d\n", ret);
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force_sig(SIGKILL);
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}
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get_safe_registers(current_pt_regs()->regs.gp,
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current_pt_regs()->regs.fp);
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__switch_mm(¤t->mm->context.id);
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}
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void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
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{
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PT_REGS_IP(regs) = eip;
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PT_REGS_SP(regs) = esp;
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current->ptrace &= ~PT_DTRACE;
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#ifdef SUBARCH_EXECVE1
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SUBARCH_EXECVE1(regs->regs);
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#endif
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}
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EXPORT_SYMBOL(start_thread);
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