diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/sys/ucontext.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/sys/ucontext.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h new file mode 100644 index 0000000000..807ed539aa --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h @@ -0,0 +1,112 @@ +/* Copyright (C) 1997-2014 Free Software Foundation, Inc. This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +/* Don't rely on this, the interface is currently messed up and may need to + be broken to be fixed. */ +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <sgidefs.h> +#include <signal.h> + +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + +/* Type for general register. Even in o32 we assume 64-bit registers, + like the kernel. */ +__extension__ typedef unsigned long long int greg_t; + +/* Number of general registers. */ +#define NGREG 32 +#define NFPREG 32 + +/* Container for all general registers. */ +typedef greg_t gregset_t[NGREG]; + +/* Container for all FPU registers. */ +typedef struct fpregset { + union { + double fp_dregs[NFPREG]; + struct { + float _fp_fregs; + unsigned int _fp_pad; + } fp_fregs[NFPREG]; + } fp_r; +} fpregset_t; + + +/* Context to describe whole processor state. */ +#if _MIPS_SIM == _ABIO32 +/* Earlier versions of glibc for mips had an entirely different + definition of mcontext_t, that didn't even resemble the + corresponding kernel data structure. Fortunately, makecontext, + [gs]etcontext et all were not implemented back then, so this can + still be rectified. */ +typedef struct + { + unsigned int regmask; + unsigned int status; + greg_t pc; + gregset_t gregs; + fpregset_t fpregs; + unsigned int fp_owned; + unsigned int fpc_csr; + unsigned int fpc_eir; + unsigned int used_math; + unsigned int dsp; + greg_t mdhi; + greg_t mdlo; + unsigned long hi1; + unsigned long lo1; + unsigned long hi2; + unsigned long lo2; + unsigned long hi3; + unsigned long lo3; + } mcontext_t; +#else +typedef struct + { + gregset_t gregs; + fpregset_t fpregs; + greg_t mdhi; + greg_t hi1; + greg_t hi2; + greg_t hi3; + greg_t mdlo; + greg_t lo1; + greg_t lo2; + greg_t lo3; + greg_t pc; + unsigned int fpc_csr; + unsigned int used_math; + unsigned int dsp; + unsigned int reserved; + } mcontext_t; +#endif + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + __sigset_t uc_sigmask; + } ucontext_t; + +#endif /* sys/ucontext.h */ |