diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/bits/ucontext.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/bits/ucontext.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/bits/ucontext.h b/sysdeps/unix/sysv/linux/mips/bits/ucontext.h new file mode 100644 index 0000000000..2f4d9d786b --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/bits/ucontext.h @@ -0,0 +1,124 @@ +/* Copyright (C) 1997-2020 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 + <https://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 _BITS_UCONTEXT_H +#define _BITS_UCONTEXT_H 1 + +#include <features.h> + +#include <bits/types/sigset_t.h> +#include <bits/types/stack_t.h> + +#include <sgidefs.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 +#ifdef __USE_MISC +# define NGREG __NGREG +# define NFPREG __NFPREG +#endif + +/* Container for all general registers. */ +typedef greg_t gregset_t[__NGREG]; + +#ifdef __USE_MISC +# define __ctx(fld) fld +#else +# define __ctx(fld) __ ## fld +#endif + +/* Container for all FPU registers. */ +typedef struct { + union { + double __ctx(fp_dregs)[__NFPREG]; + struct { + float _fp_fregs; + unsigned int _fp_pad; + } __ctx(fp_fregs)[__NFPREG]; + } __ctx(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 __ctx(regmask); + unsigned int __ctx(status); + greg_t __ctx(pc); + gregset_t __ctx(gregs); + fpregset_t __ctx(fpregs); + unsigned int __ctx(fp_owned); + unsigned int __ctx(fpc_csr); + unsigned int __ctx(fpc_eir); + unsigned int __ctx(used_math); + unsigned int __ctx(dsp); + greg_t __ctx(mdhi); + greg_t __ctx(mdlo); + unsigned long __ctx(hi1); + unsigned long __ctx(lo1); + unsigned long __ctx(hi2); + unsigned long __ctx(lo2); + unsigned long __ctx(hi3); + unsigned long __ctx(lo3); + } mcontext_t; +#else +typedef struct + { + gregset_t __ctx(gregs); + fpregset_t __ctx(fpregs); + greg_t __ctx(mdhi); + greg_t __ctx(hi1); + greg_t __ctx(hi2); + greg_t __ctx(hi3); + greg_t __ctx(mdlo); + greg_t __ctx(lo1); + greg_t __ctx(lo2); + greg_t __ctx(lo3); + greg_t __ctx(pc); + unsigned int __ctx(fpc_csr); + unsigned int __ctx(used_math); + unsigned int __ctx(dsp); + unsigned int __glibc_reserved1; + } mcontext_t; +#endif + +/* Userlevel context. */ +typedef struct ucontext_t + { + unsigned long int __ctx(uc_flags); + struct ucontext_t *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + sigset_t uc_sigmask; + } ucontext_t; + +#undef __ctx + +#endif /* bits/ucontext.h */ |