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- /*
- * 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:
- */
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