[PATCH v6 13/27] nds32: define syscall_get_arch()

syscall_get_arch() is required to be implemented on all architectures in addition to already implemented syscall_get_nr(), syscall_get_arguments(), syscall_get_error(), and syscall_get_return_value() functions in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Cc: Greentime Hu <green.hu(a)gmail.com&gt; Cc: Vincent Chen <deanbo422(a)gmail.com&gt; Cc: Paul Moore <paul(a)paul-moore.com&gt; Cc: Eric Paris <eparis(a)redhat.com&gt; Cc: Oleg Nesterov <oleg(a)redhat.com&gt; Cc: Andy Lutomirski <luto(a)kernel.org&gt; Cc: Elvira Khabirova <lineprinter(a)altlinux.org&gt; Cc: Eugene Syromyatnikov <esyr(a)redhat.com&gt; Cc: linux-audit(a)redhat.com Signed-off-by: Dmitry V. Levin <ldv(a)altlinux.org&gt; --- Notes: v6: unchanged v5: added Cc v2: apparently, this architecture can be configured as big-endian, so changed AUDIT_ARCH_NDS32 to be little-endian, and added AUDIT_ARCH_NDS32BE. arch/nds32/include/asm/syscall.h | 8 ++++++++ include/uapi/linux/audit.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h index f7e5e86765fe..569149ca25da 100644 --- a/arch/nds32/include/asm/syscall.h +++ b/arch/nds32/include/asm/syscall.h @@ -5,6 +5,7 @@ #ifndef _ASM_NDS32_SYSCALL_H #define _ASM_NDS32_SYSCALL_H 1 +#include <uapi/linux/audit.h> #include <linux/err.h> struct task_struct; struct pt_regs; @@ -185,4 +186,11 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, memcpy(&regs->uregs[0] + i, args, n * sizeof(args[0])); } + +static inline int syscall_get_arch(void) +{ + return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) + ? AUDIT_ARCH_NDS32BE : AUDIT_ARCH_NDS32; +} + #endif /* _ASM_NDS32_SYSCALL_H */ diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index b8e848736031..54551adb3d5d 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -401,6 +401,8 @@ enum { #define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_MIPSEL64N32 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\ __AUDIT_ARCH_CONVENTION_MIPS64_N32) +#define AUDIT_ARCH_NDS32 (EM_NDS32|__AUDIT_ARCH_LE) +#define AUDIT_ARCH_NDS32BE (EM_NDS32) #define AUDIT_ARCH_OPENRISC (EM_OPENRISC) #define AUDIT_ARCH_PARISC (EM_PARISC) #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) -- ldv