diff options
Diffstat (limited to 'arch/arm64/include/asm')
-rw-r--r-- | arch/arm64/include/asm/sigcontext.h | 69 | ||||
-rw-r--r-- | arch/arm64/include/asm/siginfo.h | 23 | ||||
-rw-r--r-- | arch/arm64/include/asm/signal.h | 24 | ||||
-rw-r--r-- | arch/arm64/include/asm/ucontext.h | 30 |
4 files changed, 146 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/sigcontext.h b/arch/arm64/include/asm/sigcontext.h new file mode 100644 index 0000000..573cec7 --- /dev/null +++ b/arch/arm64/include/asm/sigcontext.h @@ -0,0 +1,69 @@ +/* + * Copyright (C) 2012 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef __ASM_SIGCONTEXT_H +#define __ASM_SIGCONTEXT_H + +#include <linux/types.h> + +/* + * Signal context structure - contains all info to do with the state + * before the signal handler was invoked. + */ +struct sigcontext { + __u64 fault_address; + /* AArch64 registers */ + __u64 regs[31]; + __u64 sp; + __u64 pc; + __u64 pstate; + /* 4K reserved for FP/SIMD state and future expansion */ + __u8 __reserved[4096] __attribute__((__aligned__(16))); +}; + +/* + * Header to be used at the beginning of structures extending the user + * context. Such structures must be placed after the rt_sigframe on the stack + * and be 16-byte aligned. The last structure must be a dummy one with the + * magic and size set to 0. + */ +struct _aarch64_ctx { + __u32 magic; + __u32 size; +}; + +#define FPSIMD_MAGIC 0x46508001 + +struct fpsimd_context { + struct _aarch64_ctx head; + __u32 fpsr; + __u32 fpcr; + __uint128_t vregs[32]; +}; + +#ifdef __KERNEL__ +/* + * Auxiliary context saved in the sigcontext.__reserved array. Not exported to + * user space as it will change with the addition of new context. User space + * should check the magic/size information. + */ +struct aux_context { + struct fpsimd_context fpsimd; + /* additional context to be added before "end" */ + struct _aarch64_ctx end; +}; +#endif + +#endif diff --git a/arch/arm64/include/asm/siginfo.h b/arch/arm64/include/asm/siginfo.h new file mode 100644 index 0000000..5a74a08 --- /dev/null +++ b/arch/arm64/include/asm/siginfo.h @@ -0,0 +1,23 @@ +/* + * Copyright (C) 2012 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef __ASM_SIGINFO_H +#define __ASM_SIGINFO_H + +#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) + +#include <asm-generic/siginfo.h> + +#endif diff --git a/arch/arm64/include/asm/signal.h b/arch/arm64/include/asm/signal.h new file mode 100644 index 0000000..8d1e723 --- /dev/null +++ b/arch/arm64/include/asm/signal.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2012 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef __ASM_SIGNAL_H +#define __ASM_SIGNAL_H + +/* Required for AArch32 compatibility. */ +#define SA_RESTORER 0x04000000 + +#include <asm-generic/signal.h> + +#endif diff --git a/arch/arm64/include/asm/ucontext.h b/arch/arm64/include/asm/ucontext.h new file mode 100644 index 0000000..bde9607 --- /dev/null +++ b/arch/arm64/include/asm/ucontext.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2012 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef __ASM_UCONTEXT_H +#define __ASM_UCONTEXT_H + +struct ucontext { + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + sigset_t uc_sigmask; + /* glibc uses a 1024-bit sigset_t */ + __u8 __unused[(1024 - sizeof(sigset_t)) / 8]; + /* last for future expansion */ + struct sigcontext uc_mcontext; +}; + +#endif /* __ASM_UCONTEXT_H */ |