1 /* Perform a `longjmp' on a Mach thread_state. Alpha version.
2 Copyright (C) 2002, 2006 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 #include <hurd/signal.h>
22 #include <jmpbuf-offsets.h>
23 #include <mach/thread_status.h>
26 /* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'. */
29 _hurd_longjmp_thread_state (void *state
, jmp_buf env
, int val
)
31 struct alpha_thread_state
*const ts
= state
;
33 ts
->r9
= env
[0].__jmpbuf
[JB_S0
];
34 ts
->r10
= env
[0].__jmpbuf
[JB_S1
];
35 ts
->r11
= env
[0].__jmpbuf
[JB_S2
];
36 ts
->r12
= env
[0].__jmpbuf
[JB_S3
];
37 ts
->r13
= env
[0].__jmpbuf
[JB_S4
];
38 ts
->r13
= env
[0].__jmpbuf
[JB_S5
];
39 ts
->pc
= env
[0].__jmpbuf
[JB_PC
];
40 ts
->r15
= env
[0].__jmpbuf
[JB_FP
];
41 ts
->r30
= env
[0].__jmpbuf
[JB_SP
];
45 To mimic longjmp we ought to restore some fp registers too.
46 But those registers are in struct alpha_float_state.
47 The only use of this is in fork, and it probably won't matter.