1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
51 lines
1 KiB
C
51 lines
1 KiB
C
/*
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* Copyright 2003 PathScale, Inc.
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*
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* Licensed under the GPL
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*/
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#include <stddef.h>
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#include <errno.h>
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#include "ptrace_user.h"
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#include "user.h"
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#include "kern_constants.h"
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int ptrace_getregs(long pid, unsigned long *regs_out)
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{
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if(ptrace(PTRACE_GETREGS, pid, 0, regs_out) < 0)
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return(-errno);
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return(0);
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}
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int ptrace_setregs(long pid, unsigned long *regs)
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{
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if(ptrace(PTRACE_SETREGS, pid, 0, regs) < 0)
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return(-errno);
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return(0);
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}
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void ptrace_pokeuser(unsigned long addr, unsigned long data)
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{
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panic("ptrace_pokeuser");
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}
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#define DS 184
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#define ES 192
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#define __USER_DS 0x2b
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void arch_enter_kernel(void *task, int pid)
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{
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}
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void arch_leave_kernel(void *task, int pid)
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{
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#ifdef UM_USER_CS
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if(ptrace(PTRACE_POKEUSR, pid, CS, UM_USER_CS) < 0)
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printk("POKEUSR CS failed");
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#endif
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if(ptrace(PTRACE_POKEUSR, pid, DS, __USER_DS) < 0)
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printk("POKEUSR DS failed");
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if(ptrace(PTRACE_POKEUSR, pid, ES, __USER_DS) < 0)
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printk("POKEUSR ES failed");
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}
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