Messages in this thread Patch in this message | | | From | Yury Norov <> | Subject | [PATCH v6 16/21] arm64: signal: share lp64 signal routines to ilp32 | Date | Fri, 8 Jan 2016 02:34:34 +0300 |
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After that, it will be possible to reuse it in ilp32.
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> --- arch/arm64/include/asm/signal_common.h | 39 ++++++++++++++++++++++++++++++++++ arch/arm64/kernel/signal.c | 17 ++++++--------- 2 files changed, 45 insertions(+), 11 deletions(-) create mode 100644 arch/arm64/include/asm/signal_common.h
diff --git a/arch/arm64/include/asm/signal_common.h b/arch/arm64/include/asm/signal_common.h new file mode 100644 index 0000000..faa82c0 --- /dev/null +++ b/arch/arm64/include/asm/signal_common.h @@ -0,0 +1,39 @@ +/* + * Copyright (C) 1995-2009 Russell King + * Copyright (C) 2012 ARM Ltd. + * Copyright (C) 2016 Cavium Networks. + * + * 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_COMMON_H +#define __ASM_SIGNAL_COMMON_H + +#include <linux/uaccess.h> +#include <asm/ucontext.h> +#include <asm/fpsimd.h> + +struct sigframe { + struct ucontext uc; + u64 fp; + u64 lr; +}; + +int preserve_fpsimd_context(struct fpsimd_context __user *ctx); +int restore_fpsimd_context(struct fpsimd_context __user *ctx); +int setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set); +int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf); +void setup_return(struct pt_regs *regs, struct k_sigaction *ka, + void __user *frame, off_t sigframe_off, int usig); + +#endif /* __ASM_SIGNAL_COMMON_H */ diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c index 20dca65..a742a61 100644 --- a/arch/arm64/kernel/signal.c +++ b/arch/arm64/kernel/signal.c @@ -34,12 +34,7 @@ #include <asm/fpsimd.h> #include <asm/signal32.h> #include <asm/vdso.h> - -struct sigframe { - struct ucontext uc; - u64 fp; - u64 lr; -}; +#include <asm/signal_common.h> /* * Do a signal return; undo the signal stack. These are aligned to 128-bit. @@ -49,7 +44,7 @@ struct rt_sigframe { struct sigframe sig; }; -static int preserve_fpsimd_context(struct fpsimd_context __user *ctx) +int preserve_fpsimd_context(struct fpsimd_context __user *ctx) { struct fpsimd_state *fpsimd = ¤t->thread.fpsimd_state; int err; @@ -69,7 +64,7 @@ static int preserve_fpsimd_context(struct fpsimd_context __user *ctx) return err ? -EFAULT : 0; } -static int restore_fpsimd_context(struct fpsimd_context __user *ctx) +int restore_fpsimd_context(struct fpsimd_context __user *ctx) { struct fpsimd_state fpsimd; __u32 magic, size; @@ -96,7 +91,7 @@ static int restore_fpsimd_context(struct fpsimd_context __user *ctx) return err ? -EFAULT : 0; } -static int restore_sigframe(struct pt_regs *regs, +int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) { sigset_t set; @@ -166,7 +161,7 @@ badframe: return 0; } -static int setup_sigframe(struct sigframe __user *sf, +int setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set) { int i, err = 0; @@ -233,7 +228,7 @@ static struct rt_sigframe __user *get_sigframe(struct ksignal *ksig, return frame; } -static void setup_return(struct pt_regs *regs, struct k_sigaction *ka, +void setup_return(struct pt_regs *regs, struct k_sigaction *ka, void __user *frame, off_t sigframe_off, int usig) { __sigrestore_t sigtramp; -- 2.5.0
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