Re: [PATCH 06/13 v2] arc: define syscall_get_arch()

syscall_get_arch() is required to be implemented on all architectures that use tracehook_report_syscall_entry() in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Signed-off-by: Dmitry V. Levin <ldv(a)altlinux.org&gt; --- v2: define AUDIT_ARCH_ARCOMPACT, AUDIT_ARCH_ARCOMPACTLE, AUDIT_ARCH_ARCV2, and AUDIT_ARCH_ARCV2LE instead of AUDIT_ARCH_ARC, update syscall_get_arch() implementation accordingly. arch/arc/include/asm/syscall.h | 18 ++++++++++++++++++ include/uapi/linux/audit.h | 4 ++++ 2 files changed, 22 insertions(+) diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h index 29de09804306..a1b698290778 100644 --- a/arch/arc/include/asm/syscall.h +++ b/arch/arc/include/asm/syscall.h @@ -9,6 +9,7 @@ #ifndef _ASM_ARC_SYSCALL_H #define _ASM_ARC_SYSCALL_H 1 +#include <uapi/linux/audit.h> #include <linux/err.h> #include <linux/sched.h> #include <asm/unistd.h> @@ -68,4 +69,21 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, } } +static inline int syscall_get_arch(void) +{ +#ifdef CONFIG_ISA_ARCOMPACT +# ifdef CONFIG_CPU_BIG_ENDIAN + return AUDIT_ARCH_ARCOMPACT; +# else + return AUDIT_ARCH_ARCOMPACTLE; +# endif +#else /* CONFIG_ISA_ARCV2 */ +# ifdef CONFIG_CPU_BIG_ENDIAN + return AUDIT_ARCH_ARCV2; +# else + return AUDIT_ARCH_ARCV2LE; +# endif +#endif +}

+ #endif diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index 818ae690ab79..8e70fb70b8f8 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -375,6 +375,10 @@ enum { #define AUDIT_ARCH_AARCH64 (EM_AARCH64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) +#define AUDIT_ARCH_ARCOMPACT (EM_ARCOMPACT) +#define AUDIT_ARCH_ARCOMPACTLE (EM_ARCOMPACT|__AUDIT_ARCH_LE) +#define AUDIT_ARCH_ARCV2 (EM_ARCV2) +#define AUDIT_ARCH_ARCV2LE (EM_ARCV2|__AUDIT_ARCH_LE)