2026-01-21 18:59:54 +08:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 ARM Ltd.
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*/
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#ifndef __ASM_SIGNAL32_H
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#define __ASM_SIGNAL32_H
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2026-01-29 22:25:33 +08:00
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#ifdef CONFIG_AARCH32_EL0
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2026-01-21 18:59:54 +08:00
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#include <linux/compat.h>
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2026-01-29 22:25:33 +08:00
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struct a32_sigcontext {
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2026-01-21 18:59:54 +08:00
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/* We always set these two fields to 0 */
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compat_ulong_t trap_no;
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compat_ulong_t error_code;
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compat_ulong_t oldmask;
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compat_ulong_t arm_r0;
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compat_ulong_t arm_r1;
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compat_ulong_t arm_r2;
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compat_ulong_t arm_r3;
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compat_ulong_t arm_r4;
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compat_ulong_t arm_r5;
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compat_ulong_t arm_r6;
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compat_ulong_t arm_r7;
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compat_ulong_t arm_r8;
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compat_ulong_t arm_r9;
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compat_ulong_t arm_r10;
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compat_ulong_t arm_fp;
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compat_ulong_t arm_ip;
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compat_ulong_t arm_sp;
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compat_ulong_t arm_lr;
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compat_ulong_t arm_pc;
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compat_ulong_t arm_cpsr;
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compat_ulong_t fault_address;
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};
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2026-01-29 22:25:33 +08:00
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struct a32_ucontext {
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compat_ulong_t uc_flags;
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compat_uptr_t uc_link;
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compat_stack_t uc_stack;
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struct a32_sigcontext uc_mcontext;
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compat_sigset_t uc_sigmask;
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int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))];
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compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8)));
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};
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2026-01-29 22:25:33 +08:00
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struct a32_sigframe {
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struct a32_ucontext uc;
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compat_ulong_t retcode[2];
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};
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2026-01-29 22:25:33 +08:00
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struct a32_rt_sigframe {
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struct compat_siginfo info;
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struct a32_sigframe sig;
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};
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int a32_setup_frame(int usig, struct ksignal *ksig, sigset_t *set,
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struct pt_regs *regs);
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int a32_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
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struct pt_regs *regs);
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void a32_setup_restart_syscall(struct pt_regs *regs);
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2026-01-21 18:59:54 +08:00
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#else
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static inline int a32_setup_frame(int usid, struct ksignal *ksig,
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sigset_t *set, struct pt_regs *regs)
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{
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return -ENOSYS;
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}
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static inline int a32_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
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struct pt_regs *regs)
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{
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return -ENOSYS;
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}
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static inline void a32_setup_restart_syscall(struct pt_regs *regs)
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{
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}
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2026-01-29 22:25:33 +08:00
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#endif /* CONFIG_AARCH32_EL0 */
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2026-01-21 18:59:54 +08:00
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#endif /* __ASM_SIGNAL32_H */
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