(ELF_MACHINE_NO_RELA): Define unconditionally to defined RTLD_BOOTSTRAP.
[glibc-ports.git] / sysdeps / unix / sysv / aix / sys / ucontext.h
blobddb3f010c9998d3ef6b441cf3e1683d07819098d
1 /* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
19 #ifndef _SYS_UCONTEXT_H
20 #define _SYS_UCONTEXT_H 1
22 #include <features.h>
23 #include <bits/types.h>
24 #include <bits/sigset.h>
27 /* Alternate, preferred interface. */
28 typedef struct sigaltstack
30 void *ss_sp;
31 size_t ss_size;
32 int ss_flags;
33 int __pad[4];
34 } stack_t;
37 /* Forward declaration of AIX type. */
38 typedef struct label_t label_t;
42 typedef unsigned int kvmhandle_t;
43 typedef struct
45 unsigned long int __alloc;
46 kvmhandle_t __srval[16];
47 } adspace_t;
51 #define _NGPRS 32
52 #define _NFPRS 32
54 struct __mstsafe
56 struct __mstsave *__prev; /* Previous save area. */
57 label_t *__kjmpbuf; /* Pointer to saved context. */
58 char *__stackfix; /* Stack fix pointer. */
59 char __intpri; /* Interrupt priority. */
60 char __backt; /* Back-track flag. */
61 char __rsvd[2]; /* Reserved. */
62 __pid_t __curid; /* Copy of curid. */
64 int __excp_type; /* Exception type for debugger. */
65 unsigned long int __iar; /* Instruction address register. */
66 unsigned long int __msr; /* Machine state register. */
67 unsigned long int __cr; /* Condition register. */
68 unsigned long int __lr; /* Link register. */
69 unsigned long int __ctr; /* Count register. */
70 unsigned long int __xer; /* Fixed point exception. */
71 unsigned long int __mq; /* Multiply/quotient register. */
72 unsigned long int __tid; /* TID register. */
73 unsigned long int __fpscr; /* Floating point status reg. */
74 char __fpeu; /* Floating point ever used. */
75 char __fpinfo; /* Floating point status flags. */
76 char __pad[2]; /* Pad to dword boundary. */
77 /* 1 implies state is in mstext */
78 unsigned long int __except[5]; /* exception structure. */
79 char __pad1[4]; /* Old bus field. */
80 unsigned long int __o_iar; /* Old iar (for longjmp excpt). */
81 unsigned long int __o_toc; /* Old toc (for longjmp excpt). */
82 unsigned long int __o_arg1; /* Old arg1 (for longjmp excpt). */
83 unsigned long int __excbranch; /* If not NULL, address to branch
84 to on exception. Used by
85 assembler routines for low
86 cost exception handling. */
87 unsigned long int __fpscrx; /* Software extension to fpscr. */
88 unsigned long int __o_vaddr; /* Saved vaddr for vmexception. */
89 unsigned long int __cachealign[7]; /* Reserved. */
90 adspace_t __as; /* Segment registers. */
91 unsigned long int __gpr[_NGPRS]; /* General purpose registers. */
92 double __fpr[_NFPRS]; /* Floating point registers. */
95 typedef struct mcontext_t
97 struct __mstsafe __jmp_context;
98 } mcontext_t;
101 typedef struct ucontext_t
103 int __sc_onstack; /* Sigstack state to restore. */
104 __sigset_t uc_sigmask; /* The set of signals that are blocked when
105 this context is active. */
106 int __sc_uerror; /* u_error to restore. */
107 mcontext_t uc_mcontext; /* Machine-specific image of saved context. */
108 struct ucontext_t *uc_link; /* context resumed after this one returns */
109 stack_t uc_stack; /* stack used by context */
110 int __pad[4];
111 } ucontext_t;
113 #endif /* sys/ucontext.h */