diff options
| -rw-r--r-- | arch/alpha/include/asm/ptrace.h | 1 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/ptrace.h | 1 | ||||
| -rw-r--r-- | arch/cris/include/asm/ptrace.h | 1 | ||||
| -rw-r--r-- | arch/h8300/include/asm/ptrace.h | 1 | ||||
| -rw-r--r-- | arch/ia64/include/asm/ptrace.h | 5 | ||||
| -rw-r--r-- | arch/m68k/include/asm/ptrace.h | 1 | ||||
| -rw-r--r-- | include/linux/ptrace.h | 4 |
7 files changed, 14 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h index b4c5b2fbb647..fd53c74ac943 100644 --- a/arch/alpha/include/asm/ptrace.h +++ b/arch/alpha/include/asm/ptrace.h @@ -72,6 +72,7 @@ struct switch_stack { #define user_mode(regs) (((regs)->ps & 8) != 0) #define instruction_pointer(regs) ((regs)->pc) #define profile_pc(regs) instruction_pointer(regs) +#define current_user_stack_pointer() rdusp() #define task_pt_regs(task) \ ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1) diff --git a/arch/blackfin/include/asm/ptrace.h b/arch/blackfin/include/asm/ptrace.h index 10d8641180f2..c42002506a26 100644 --- a/arch/blackfin/include/asm/ptrace.h +++ b/arch/blackfin/include/asm/ptrace.h @@ -106,6 +106,7 @@ struct pt_regs { #define arch_has_single_step() (1) /* common code demands this function */ #define ptrace_disable(child) user_disable_single_step(child) +#define current_user_stack_pointer() rdusp() extern int is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long len); diff --git a/arch/cris/include/asm/ptrace.h b/arch/cris/include/asm/ptrace.h index 6618893bfe8e..551c081ab62b 100644 --- a/arch/cris/include/asm/ptrace.h +++ b/arch/cris/include/asm/ptrace.h @@ -10,6 +10,7 @@ #define PTRACE_SETREGS 13 #define profile_pc(regs) instruction_pointer(regs) +#define current_user_stack_pointer() rdusp() #endif /* __KERNEL__ */ diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h index 7468589a128b..6183371d0c93 100644 --- a/arch/h8300/include/asm/ptrace.h +++ b/arch/h8300/include/asm/ptrace.h @@ -63,6 +63,7 @@ struct pt_regs { #define current_pt_regs() ((struct pt_regs *) \ (THREAD_SIZE + (unsigned long)current_thread_info()) - 1) #define signal_pt_regs() ((struct pt_regs *)current->thread.esp0) +#define current_user_stack_pointer() rdusp() #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _H8300_PTRACE_H */ diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h index b0e973649cb9..845143990a1d 100644 --- a/arch/ia64/include/asm/ptrace.h +++ b/arch/ia64/include/asm/ptrace.h @@ -78,6 +78,11 @@ static inline long regs_return_value(struct pt_regs *regs) unsigned long __ip = instruction_pointer(regs); \ (__ip & ~3UL) + ((__ip & 3UL) << 2); \ }) +/* + * Why not default? Because user_stack_pointer() on ia64 gives register + * stack backing store instead... + */ +#define current_user_stack_pointer() (current_pt_regs()->r12) /* given a pointer to a task_struct, return the user's pt_regs */ # define task_pt_regs(t) (((struct pt_regs *) ((char *) (t) + IA64_STK_OFFSET)) - 1) diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h index 0f717045bdde..a45cb6894ad3 100644 --- a/arch/m68k/include/asm/ptrace.h +++ b/arch/m68k/include/asm/ptrace.h @@ -15,6 +15,7 @@ #define profile_pc(regs) instruction_pointer(regs) #define current_pt_regs() \ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1 +#define current_user_stack_pointer() rdusp() #define arch_has_single_step() (1) diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index a89ff04bddd9..a3a9d085f932 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -342,6 +342,10 @@ static inline void user_single_step_siginfo(struct task_struct *tsk, #define signal_pt_regs() task_pt_regs(current) #endif +#ifndef current_user_stack_pointer +#define current_user_stack_pointer() user_stack_pointer(current_pt_regs()) +#endif + extern int task_current_syscall(struct task_struct *target, long *callno, unsigned long args[6], unsigned int maxargs, unsigned long *sp, unsigned long *pc); |