On Tue, Jul 6, 2021 at 6:18 AM Huacai Chen <chenhuacai@xxxxxxxxxxx> wrote:
>
> This patch adds signal handling support for LoongArch.
>
> Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
Eric Biederman should review this part as well.
> --- /dev/null
> +++ b/arch/loongarch/include/asm/sigcontext.h
> @@ -0,0 +1,10 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2020-2021 Loongson Technology Corporation Limited
> + */
> +#ifndef _ASM_SIGCONTEXT_H
> +#define _ASM_SIGCONTEXT_H
> +
> +#include <uapi/asm/sigcontext.h>
> +
> +#endif /* _ASM_SIGCONTEXT_H */
Remove this file
> + */
> +#ifndef _UAPI_ASM_SIGINFO_H
> +#define _UAPI_ASM_SIGINFO_H
> +
> +#if _LOONGARCH_SZLONG == 32
> +#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
> +#else
> +#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
> +#endif
These are no longer used.
> +
> +#ifndef _NSIG
> +#define _NSIG 128
> +#endif
Everything else uses 64 here, except for MIPS.
> +#define _NSIG_BPW __BITS_PER_LONG
> +#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
> +
> +#define SIGHUP 1
> +#define SIGINT 2
> +#define SIGQUIT 3
> +#define SIGILL 4
> +#define SIGTRAP 5
> +#define SIGABRT 6
> +#define SIGIOT 6
> +#define SIGBUS 7
> +#define SIGFPE 8
> +#define SIGKILL 9
> +#define SIGUSR1 10
> +#define SIGSEGV 11
> +#define SIGUSR2 12
> +#define SIGPIPE 13
> +#define SIGALRM 14
> +#define SIGTERM 15
> +#define SIGSTKFLT 16
> +#define SIGCHLD 17
> +#define SIGCONT 18
> +#define SIGSTOP 19
> +#define SIGTSTP 20
> +#define SIGTTIN 21
> +#define SIGTTOU 22
> +#define SIGURG 23
> +#define SIGXCPU 24
> +#define SIGXFSZ 25
> +#define SIGVTALRM 26
> +#define SIGPROF 27
> +#define SIGWINCH 28
> +#define SIGIO 29
> +#define SIGPOLL SIGIO
> +#define SIGPWR 30
> +#define SIGSYS 31
> +#define SIGUNUSED 31
Please try to use the asm-generic version of these definitions instead
copying them. If you need something different, you can add an #ifdef there,
and then we can discuss whether the difference makes sense.
Arnd
