72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
|
|
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <asm/ptrace.h>
|
|
#include <asm/sigcontext.h>
|
|
#include "sysdep/ptrace.h"
|
|
#include "kern_util.h"
|
|
|
|
void sc_to_sc(void *to_ptr, void *from_ptr)
|
|
{
|
|
struct sigcontext *to = to_ptr, *from = from_ptr;
|
|
|
|
memcpy(to, from, sizeof(*to) + sizeof(struct _fpstate));
|
|
if(from->fpstate != NULL)
|
|
to->fpstate = (struct _fpstate *) (to + 1);
|
|
}
|
|
|
|
unsigned long *sc_sigmask(void *sc_ptr)
|
|
{
|
|
struct sigcontext *sc = sc_ptr;
|
|
return &sc->oldmask;
|
|
}
|
|
|
|
int sc_get_fpregs(unsigned long buf, void *sc_ptr)
|
|
{
|
|
struct sigcontext *sc = sc_ptr;
|
|
struct _fpstate *from = sc->fpstate, *to = (struct _fpstate *) buf;
|
|
int err = 0;
|
|
|
|
if(from == NULL){
|
|
err |= clear_user_proc(&to->cw, sizeof(to->cw));
|
|
err |= clear_user_proc(&to->sw, sizeof(to->sw));
|
|
err |= clear_user_proc(&to->tag, sizeof(to->tag));
|
|
err |= clear_user_proc(&to->ipoff, sizeof(to->ipoff));
|
|
err |= clear_user_proc(&to->cssel, sizeof(to->cssel));
|
|
err |= clear_user_proc(&to->dataoff, sizeof(to->dataoff));
|
|
err |= clear_user_proc(&to->datasel, sizeof(to->datasel));
|
|
err |= clear_user_proc(&to->_st, sizeof(to->_st));
|
|
}
|
|
else {
|
|
err |= copy_to_user_proc(&to->cw, &from->cw, sizeof(to->cw));
|
|
err |= copy_to_user_proc(&to->sw, &from->sw, sizeof(to->sw));
|
|
err |= copy_to_user_proc(&to->tag, &from->tag,
|
|
sizeof(to->tag));
|
|
err |= copy_to_user_proc(&to->ipoff, &from->ipoff,
|
|
sizeof(to->ipoff));
|
|
err |= copy_to_user_proc(&to->cssel,& from->cssel,
|
|
sizeof(to->cssel));
|
|
err |= copy_to_user_proc(&to->dataoff, &from->dataoff,
|
|
sizeof(to->dataoff));
|
|
err |= copy_to_user_proc(&to->datasel, &from->datasel,
|
|
sizeof(to->datasel));
|
|
err |= copy_to_user_proc(to->_st, from->_st, sizeof(to->_st));
|
|
}
|
|
return(err);
|
|
}
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
|
* adjust the settings for this buffer only. This must remain at the end
|
|
* of the file.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|