[PATCH 1/4] SH: define syscall_get_arch() for superh
Richard Guy Briggs
rgb at redhat.com
Fri Mar 21 18:59:16 UTC 2014
On 14/03/19, Eric Paris wrote:
> This patch defines syscall_get_arch() for the superh platform. It does
> so in both syscall_32.h and syscall_64.h. I'm not certain if the
> implementation in syscall_64.h couldn't just be used in syscall.h as I
> can't really track the setting of CONFIG_64BIT...
>
> This way is safe, but we might be able to combine these if a superh
> person were able to review...
>
> Signed-off-by: Eric Paris <eparis at redhat.com>
> Cc: linux-sh at vger.kernel.org
Acked-by: Richard Guy Briggs <rgb at redhat.com> (but prefer the syscall.h version)
> ---
> arch/sh/include/asm/syscall_32.h | 10 ++++++++++
> arch/sh/include/asm/syscall_64.h | 14 ++++++++++++++
> 2 files changed, 24 insertions(+)
>
> diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h
> index 7d80df4..460e9c6 100644
> --- a/arch/sh/include/asm/syscall_32.h
> +++ b/arch/sh/include/asm/syscall_32.h
> @@ -1,6 +1,7 @@
> #ifndef __ASM_SH_SYSCALL_32_H
> #define __ASM_SH_SYSCALL_32_H
>
> +#include <uapi/linux/audit.h>
> #include <linux/kernel.h>
> #include <linux/sched.h>
> #include <linux/err.h>
> @@ -93,4 +94,13 @@ static inline void syscall_set_arguments(struct task_struct *task,
> }
> }
>
> +static inline int syscall_get_arch(void)
> +{
> + int arch = EM_SH;
> +
> +#ifdef CONFIG_CPU_LITTLE_ENDIAN
> + arch |= __AUDIT_ARCH_LE;
> +#endif
> + return arch;
> +}
> #endif /* __ASM_SH_SYSCALL_32_H */
> diff --git a/arch/sh/include/asm/syscall_64.h b/arch/sh/include/asm/syscall_64.h
> index c3561ca..e03e77d 100644
> --- a/arch/sh/include/asm/syscall_64.h
> +++ b/arch/sh/include/asm/syscall_64.h
> @@ -1,6 +1,7 @@
> #ifndef __ASM_SH_SYSCALL_64_H
> #define __ASM_SH_SYSCALL_64_H
>
> +#include <uapi/linux/audit.h>
> #include <linux/kernel.h>
> #include <linux/sched.h>
> #include <asm/ptrace.h>
> @@ -61,4 +62,17 @@ static inline void syscall_set_arguments(struct task_struct *task,
> memcpy(®s->regs[2 + i], args, n * sizeof(args[0]));
> }
>
> +static inline int syscall_get_arch(void)
> +{
> + int arch = EM_SH;
> +
> +#ifdef CONFIG_64BIT
> + arch |= __AUDIT_ARCH_64BIT;
> +#endif
> +#ifdef CONFIG_CPU_LITTLE_ENDIAN
> + arch |= __AUDIT_ARCH_LE;
> +#endif
> +
> + return arch;
> +}
> #endif /* __ASM_SH_SYSCALL_64_H */
> --
> 1.8.5.3
>
> --
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> Linux-audit at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-audit
- RGB
--
Richard Guy Briggs <rbriggs at redhat.com>
Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat
Remote, Ottawa, Canada
Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545
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