ucontext.h (3331B) - Raw
1 /*- 2 * Copyright (c) 2014 Andrew Turner 3 * Copyright (c) 2014-2015 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * This software was developed by Andrew Turner under 7 * sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifdef __arm__ 32 #include <arm/ucontext.h> 33 #else /* !__arm__ */ 34 35 #ifndef _MACHINE_UCONTEXT_H_ 36 #define _MACHINE_UCONTEXT_H_ 37 38 struct gpregs { 39 __register_t gp_x[30]; 40 __register_t gp_lr; 41 __register_t gp_sp; 42 __register_t gp_elr; 43 __uint64_t gp_spsr; 44 }; 45 46 struct fpregs { 47 __uint128_t fp_q[32]; 48 __uint32_t fp_sr; 49 __uint32_t fp_cr; 50 int fp_flags; 51 int fp_pad; 52 }; 53 54 /* 55 * Support for registers that don't fit into gpregs or fpregs, e.g. SVE. 56 * There are some registers that have been added so are optional. To support 57 * these create an array of headers that point at the register data. 58 */ 59 struct arm64_reg_context { 60 __uint32_t ctx_id; 61 __uint32_t ctx_size; 62 }; 63 64 #define ARM64_CTX_END 0xa5a5a5a5 65 #define ARM64_CTX_SVE 0x00657673 66 67 struct sve_context { 68 struct arm64_reg_context sve_ctx; 69 __uint16_t sve_vector_len; 70 __uint16_t sve_flags; 71 __uint16_t sve_reserved[2]; 72 }; 73 74 struct __mcontext { 75 struct gpregs mc_gpregs; 76 struct fpregs mc_fpregs; 77 int mc_flags; 78 #define _MC_FP_VALID 0x1 /* Set when mc_fpregs has valid data */ 79 int mc_pad; /* Padding */ 80 __uint64_t mc_ptr; /* Address of extra_regs struct */ 81 __uint64_t mc_spare[7]; /* Space for expansion, set to zero */ 82 }; 83 84 85 typedef struct __mcontext mcontext_t; 86 87 #ifdef COMPAT_FREEBSD32 88 #include <compat/freebsd32/freebsd32_signal.h> 89 typedef struct __mcontext32 { 90 uint32_t mc_gregset[17]; 91 uint32_t mc_vfp_size; 92 uint32_t mc_vfp_ptr; 93 uint32_t mc_spare[33]; 94 } mcontext32_t; 95 96 typedef struct __ucontext32 { 97 sigset_t uc_sigmask; 98 mcontext32_t uc_mcontext; 99 u_int32_t uc_link; 100 struct sigaltstack32 uc_stack; 101 u_int32_t uc_flags; 102 u_int32_t __spare__[4]; 103 } ucontext32_t; 104 105 typedef struct __mcontext32_vfp { 106 __uint64_t mcv_reg[32]; 107 __uint32_t mcv_fpscr; 108 } mcontext32_vfp_t; 109 110 #endif /* COMPAT_FREEBSD32 */ 111 112 #endif /* !_MACHINE_UCONTEXT_H_ */ 113 114 #endif /* !__arm__ */