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Stacey Son7dba5e12024-07-08 00:41:24 +05301/*
2 * ARM AArch64 specific signal definitions for bsd-user
3 *
4 * Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#ifndef TARGET_ARCH_SIGNAL_H
21#define TARGET_ARCH_SIGNAL_H
22
23#include "cpu.h"
24
25#define TARGET_REG_X0 0
26#define TARGET_REG_X30 30
27#define TARGET_REG_X31 31
28#define TARGET_REG_LR TARGET_REG_X30
29#define TARGET_REG_SP TARGET_REG_X31
30
31#define TARGET_INSN_SIZE 4 /* arm64 instruction size */
32
33/* Size of the signal trampolin code. See _sigtramp(). */
34#define TARGET_SZSIGCODE ((abi_ulong)(9 * TARGET_INSN_SIZE))
35
36/* compare to sys/arm64/include/_limits.h */
37#define TARGET_MINSIGSTKSZ (1024 * 4) /* min sig stack size */
38#define TARGET_SIGSTKSZ (TARGET_MINSIGSTKSZ + 32768) /* recommended size */
39
40/* struct __mcontext in sys/arm64/include/ucontext.h */
41
42struct target_gpregs {
43 uint64_t gp_x[30];
44 uint64_t gp_lr;
45 uint64_t gp_sp;
46 uint64_t gp_elr;
47 uint32_t gp_spsr;
48 uint32_t gp_pad;
49};
50
51struct target_fpregs {
Stacey Sonce6c5412024-07-08 00:41:28 +053052 Int128 fp_q[32];
Stacey Son7dba5e12024-07-08 00:41:24 +053053 uint32_t fp_sr;
54 uint32_t fp_cr;
55 uint32_t fp_flags;
56 uint32_t fp_pad;
57};
58
59struct target__mcontext {
60 struct target_gpregs mc_gpregs;
61 struct target_fpregs mc_fpregs;
62 uint32_t mc_flags;
63#define TARGET_MC_FP_VALID 0x1
64 uint32_t mc_pad;
65 uint64_t mc_spare[8];
66};
67
68typedef struct target__mcontext target_mcontext_t;
69
70#define TARGET_MCONTEXT_SIZE 880
71#define TARGET_UCONTEXT_SIZE 960
72
73#include "target_os_ucontext.h"
74
75struct target_sigframe {
76 target_siginfo_t sf_si; /* saved siginfo */
77 target_ucontext_t sf_uc; /* saved ucontext */
78};
79
Warner Losh5fa2a102024-06-23 15:29:42 -060080#define TARGET_SIGSTACK_ALIGN 16
81
Stacey Son7dba5e12024-07-08 00:41:24 +053082#endif /* TARGET_ARCH_SIGNAL_H */