projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 28f540f4 | 1 | /* Machine-dependent signal context structure for GNU Hurd. Alpha version. |
| 478b92f0 UD |
2 | Copyright (C) 1994, 1997 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. | |
| 28f540f4 | 4 | |
| 478b92f0 UD |
5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Library General Public License as | |
| 7 | published by the Free Software Foundation; either version 2 of the | |
| 8 | License, or (at your option) any later version. | |
| 28f540f4 | 9 | |
| 478b92f0 UD |
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 | Library General Public License for more details. | |
| 28f540f4 | 14 | |
| 478b92f0 UD |
15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 18 | Boston, MA 02111-1307, USA. */ | |
| 28f540f4 | 19 | |
| f4017d20 UD |
20 | #ifndef _SIGNAL_H |
| 21 | # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead." | |
| 22 | #endif | |
| 23 | ||
| 28f540f4 RM |
24 | /* Signal handlers are actually called: |
| 25 | void handler (int sig, int code, struct sigcontext *scp); */ | |
| 26 | ||
| 27 | /* State of this thread when the signal was taken. */ | |
| 28 | struct sigcontext | |
| 29 | { | |
| 30 | /* These first members are machine-independent. */ | |
| 31 | ||
| 32 | long int sc_onstack; /* Nonzero if running on sigstack. */ | |
| 33 | __sigset_t sc_mask; /* Blocked signals to restore. */ | |
| 34 | ||
| 35 | /* MiG reply port this thread is using. */ | |
| 36 | unsigned long int sc_reply_port; | |
| 37 | ||
| 38 | /* Port this thread is doing an interruptible RPC on. */ | |
| 39 | unsigned long int sc_intr_port; | |
| 40 | ||
| 41 | /* Error code associated with this signal (interpreted as `error_t'). */ | |
| 42 | int sc_error; | |
| 43 | ||
| 44 | /* All following members are machine-dependent. The rest of this | |
| 45 | structure is written to be laid out identically to: | |
| 46 | { | |
| 478b92f0 UD |
47 | struct alpha_thread_state basic; |
| 48 | struct alpha_exc_state exc; | |
| 49 | struct alpha_float_state fpu; | |
| 28f540f4 RM |
50 | } |
| 51 | trampoline.c knows this, so it must be changed if this changes. */ | |
| 52 | ||
| 53 | #define sc_alpha_thread_state sc_regs /* Beginning of correspondence. */ | |
| 54 | long int sc_regs[31]; /* General registers $0..$30. */ | |
| 55 | long int sc_pc; /* Program counter. */ | |
| 56 | ||
| 57 | /* struct alpha_exc_state */ | |
| 58 | #define sc_alpha_exc_state sc_badvaddr | |
| 59 | unsigned long int sc_badvaddr; | |
| 60 | unsigned int sc_cause; /* Machine-level trap code. */ | |
| 61 | #define SC_CAUSE_SET_SSTEP 1 | |
| 62 | int sc_used_fpa; /* Nonzero if FPU was used. */ | |
| 63 | ||
| 64 | /* struct alpha_float_state | |
| 65 | This is only filled in if sc_used_fpa is nonzero. */ | |
| 66 | #define sc_alpha_float_state sc_fpregs | |
| 67 | double sc_fpregs[31]; /* Floating point registers $f0..$f30. */ | |
| 68 | long int sc_fpcsr; /* Floating point control/status register. */ | |
| 69 | }; |