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arc: define syscall_get_arch()

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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.

Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Cc: Elvira Khabirova <lineprinter@altlinux.org>
Cc: Eugene Syromyatnikov <esyr@redhat.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-audit@redhat.com
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Dmitry V. Levin 2019-03-18 02:28:47 +03:00 committed by Paul Moore
parent 162f33dd45
commit 67f2a8a293
2 changed files with 15 additions and 0 deletions
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11
arch/arc/include/asm/syscall.h
View File

@ -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 +69,14 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
}
}
static inline int
syscall_get_arch(void)
{
return IS_ENABLED(CONFIG_ISA_ARCOMPACT)
? (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
? AUDIT_ARCH_ARCOMPACTBE : AUDIT_ARCH_ARCOMPACT)
: (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
? AUDIT_ARCH_ARCV2BE : AUDIT_ARCH_ARCV2);
}
#endif

4
include/uapi/linux/audit.h
View File

@ -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|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARCOMPACTBE (EM_ARCOMPACT)
#define AUDIT_ARCH_ARCV2 (EM_ARCV2|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARCV2BE (EM_ARCV2)
#define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE)
#define AUDIT_ARCH_ARMEB (EM_ARM)
#define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE)