diff options
Diffstat (limited to 'arch/sparc/include/asm/syscall.h')
| -rw-r--r-- | arch/sparc/include/asm/syscall.h | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h index 1757cd6c521b..b0233924d323 100644 --- a/arch/sparc/include/asm/syscall.h +++ b/arch/sparc/include/asm/syscall.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SPARC_SYSCALL_H #define __ASM_SPARC_SYSCALL_H @@ -24,6 +25,18 @@ static inline long syscall_get_nr(struct task_struct *task, return (syscall_p ? regs->u_regs[UREG_G1] : -1L); } +static inline void syscall_set_nr(struct task_struct *task, + struct pt_regs *regs, + int nr) +{ + /* + * Unlike syscall_get_nr(), syscall_set_nr() can be called only when + * the target task is stopped for tracing on entering syscall, so + * there is no need to have the same check syscall_get_nr() has. + */ + regs->u_regs[UREG_G1] = nr; +} + static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { @@ -95,11 +108,11 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { int zero_extend = 0; unsigned int j; + unsigned int n = 6; #ifdef CONFIG_SPARC64 if (test_tsk_thread_flag(task, TIF_32BIT)) @@ -107,7 +120,7 @@ static inline void syscall_get_arguments(struct task_struct *task, #endif for (j = 0; j < n; j++) { - unsigned long val = regs->u_regs[UREG_I0 + i + j]; + unsigned long val = regs->u_regs[UREG_I0 + j]; if (zero_extend) args[j] = (u32) val; @@ -118,19 +131,19 @@ static inline void syscall_get_arguments(struct task_struct *task, static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - unsigned int j; + unsigned int i; - for (j = 0; j < n; j++) - regs->u_regs[UREG_I0 + i + j] = args[j]; + for (i = 0; i < 6; i++) + regs->u_regs[UREG_I0 + i] = args[i]; } -static inline int syscall_get_arch(void) +static inline int syscall_get_arch(struct task_struct *task) { #if defined(CONFIG_SPARC64) && defined(CONFIG_COMPAT) - return in_compat_syscall() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64; + return test_tsk_thread_flag(task, TIF_32BIT) + ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64; #elif defined(CONFIG_SPARC64) return AUDIT_ARCH_SPARC64; #else |