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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/unix/sysv/linux/x86/sys/ucontext.h | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.xz glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/x86/sys/ucontext.h')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/x86/sys/ucontext.h | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/x86/sys/ucontext.h b/REORG.TODO/sysdeps/unix/sysv/linux/x86/sys/ucontext.h new file mode 100644 index 0000000000..5fd64bf801 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/x86/sys/ucontext.h @@ -0,0 +1,260 @@ +/* Copyright (C) 2001-2017 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/>. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> + +#include <bits/types/sigset_t.h> +#include <bits/sigcontext.h> +#include <bits/types/stack_t.h> + + +#ifdef __USE_MISC +# define __ctx(fld) fld +#else +# define __ctx(fld) __ ## fld +#endif + +#ifdef __x86_64__ + +/* Type for general register. */ +__extension__ typedef long long int greg_t; + +/* Number of general registers. */ +#define __NGREG 23 +#ifdef __USE_MISC +# define NGREG __NGREG +#endif + +/* Container for all general registers. */ +typedef greg_t gregset_t[__NGREG]; + +#ifdef __USE_GNU +/* Number of each register in the `gregset_t' array. */ +enum +{ + REG_R8 = 0, +# define REG_R8 REG_R8 + REG_R9, +# define REG_R9 REG_R9 + REG_R10, +# define REG_R10 REG_R10 + REG_R11, +# define REG_R11 REG_R11 + REG_R12, +# define REG_R12 REG_R12 + REG_R13, +# define REG_R13 REG_R13 + REG_R14, +# define REG_R14 REG_R14 + REG_R15, +# define REG_R15 REG_R15 + REG_RDI, +# define REG_RDI REG_RDI + REG_RSI, +# define REG_RSI REG_RSI + REG_RBP, +# define REG_RBP REG_RBP + REG_RBX, +# define REG_RBX REG_RBX + REG_RDX, +# define REG_RDX REG_RDX + REG_RAX, +# define REG_RAX REG_RAX + REG_RCX, +# define REG_RCX REG_RCX + REG_RSP, +# define REG_RSP REG_RSP + REG_RIP, +# define REG_RIP REG_RIP + REG_EFL, +# define REG_EFL REG_EFL + REG_CSGSFS, /* Actually short cs, gs, fs, __pad0. */ +# define REG_CSGSFS REG_CSGSFS + REG_ERR, +# define REG_ERR REG_ERR + REG_TRAPNO, +# define REG_TRAPNO REG_TRAPNO + REG_OLDMASK, +# define REG_OLDMASK REG_OLDMASK + REG_CR2 +# define REG_CR2 REG_CR2 +}; +#endif + +struct _libc_fpxreg +{ + unsigned short int __ctx(significand)[4]; + unsigned short int __ctx(exponent); + unsigned short int __glibc_reserved1[3]; +}; + +struct _libc_xmmreg +{ + __uint32_t element[4]; +}; + +struct _libc_fpstate +{ + /* 64-bit FXSAVE format. */ + __uint16_t __ctx(cwd); + __uint16_t __ctx(swd); + __uint16_t __ctx(ftw); + __uint16_t __ctx(fop); + __uint64_t __ctx(rip); + __uint64_t __ctx(rdp); + __uint32_t __ctx(mxcsr); + __uint32_t __ctx(mxcr_mask); + struct _libc_fpxreg _st[8]; + struct _libc_xmmreg _xmm[16]; + __uint32_t __glibc_reserved1[24]; +}; + +/* Structure to describe FPU registers. */ +typedef struct _libc_fpstate *fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + gregset_t __ctx(gregs); + /* Note that fpregs is a pointer. */ + fpregset_t __ctx(fpregs); + __extension__ unsigned long long __reserved1 [8]; +} mcontext_t; + +/* 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; + struct _libc_fpstate __fpregs_mem; + } ucontext_t; + +#else /* !__x86_64__ */ + +/* Type for general register. */ +typedef int greg_t; + +/* Number of general registers. */ +#define __NGREG 19 +#ifdef __USE_MISC +# define NGREG __NGREG +#endif + +/* Container for all general registers. */ +typedef greg_t gregset_t[__NGREG]; + +#ifdef __USE_GNU +/* Number of each register is the `gregset_t' array. */ +enum +{ + REG_GS = 0, +# define REG_GS REG_GS + REG_FS, +# define REG_FS REG_FS + REG_ES, +# define REG_ES REG_ES + REG_DS, +# define REG_DS REG_DS + REG_EDI, +# define REG_EDI REG_EDI + REG_ESI, +# define REG_ESI REG_ESI + REG_EBP, +# define REG_EBP REG_EBP + REG_ESP, +# define REG_ESP REG_ESP + REG_EBX, +# define REG_EBX REG_EBX + REG_EDX, +# define REG_EDX REG_EDX + REG_ECX, +# define REG_ECX REG_ECX + REG_EAX, +# define REG_EAX REG_EAX + REG_TRAPNO, +# define REG_TRAPNO REG_TRAPNO + REG_ERR, +# define REG_ERR REG_ERR + REG_EIP, +# define REG_EIP REG_EIP + REG_CS, +# define REG_CS REG_CS + REG_EFL, +# define REG_EFL REG_EFL + REG_UESP, +# define REG_UESP REG_UESP + REG_SS +# define REG_SS REG_SS +}; +#endif + +/* Definitions taken from the kernel headers. */ +struct _libc_fpreg +{ + unsigned short int __ctx(significand)[4]; + unsigned short int __ctx(exponent); +}; + +struct _libc_fpstate +{ + unsigned long int __ctx(cw); + unsigned long int __ctx(sw); + unsigned long int __ctx(tag); + unsigned long int __ctx(ipoff); + unsigned long int __ctx(cssel); + unsigned long int __ctx(dataoff); + unsigned long int __ctx(datasel); + struct _libc_fpreg _st[8]; + unsigned long int __ctx(status); +}; + +/* Structure to describe FPU registers. */ +typedef struct _libc_fpstate *fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + gregset_t __ctx(gregs); + /* Due to Linux's history we have to use a pointer here. The SysV/i386 + ABI requires a struct with the values. */ + fpregset_t __ctx(fpregs); + unsigned long int __ctx(oldmask); + unsigned long int __ctx(cr2); + } mcontext_t; + +/* 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; + struct _libc_fpstate __fpregs_mem; + } ucontext_t; + +#endif /* !__x86_64__ */ + +#undef __ctx + +#endif /* sys/ucontext.h */ |