diff options
Diffstat (limited to 'arch/arm/include/asm/syscall.h')
| -rw-r--r-- | arch/arm/include/asm/syscall.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h index c334a23ddf7..4651f6999b7 100644 --- a/arch/arm/include/asm/syscall.h +++ b/arch/arm/include/asm/syscall.h @@ -7,7 +7,14 @@ #ifndef _ASM_ARM_SYSCALL_H #define _ASM_ARM_SYSCALL_H +#include <uapi/linux/audit.h> /* for AUDIT_ARCH_* */ +#include <linux/elf.h> /* for ELF_EM */ #include <linux/err.h> +#include <linux/sched.h> + +#include <asm/unistd.h> + +#define NR_syscalls (__NR_syscalls) extern const unsigned long sys_call_table[]; @@ -50,6 +57,9 @@ static inline void syscall_get_arguments(struct task_struct *task, unsigned int i, unsigned int n, unsigned long *args) { + if (n == 0) + return; + if (i + n > SYSCALL_MAX_ARGS) { unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; @@ -74,6 +84,9 @@ static inline void syscall_set_arguments(struct task_struct *task, unsigned int i, unsigned int n, const unsigned long *args) { + if (n == 0) + return; + if (i + n > SYSCALL_MAX_ARGS) { pr_warning("%s called with max args %d, handling only %d\n", __func__, i + n, SYSCALL_MAX_ARGS); @@ -90,4 +103,10 @@ static inline void syscall_set_arguments(struct task_struct *task, memcpy(®s->ARM_r0 + i, args, n * sizeof(args[0])); } +static inline int syscall_get_arch(void) +{ + /* ARM tasks don't change audit architectures on the fly. */ + return AUDIT_ARCH_ARM; +} + #endif /* _ASM_ARM_SYSCALL_H */ |