include/asm/ptrace.h

21 	struct pt_regs regs;
25 #define to_svc_pt_regs(r) container_of(r, struct svc_pt_regs, regs)
27 #define user_mode(regs)	\
28 	(((regs)->ARM_cpsr & 0xf) == 0)
31 #define thumb_mode(regs) \
32 	(((regs)->ARM_cpsr & PSR_T_BIT))
34 #define thumb_mode(regs) (0)
38 #define isa_mode(regs) \
39 	(FIELD_GET(PSR_J_BIT, (regs)->ARM_cpsr) << 1 | \
40 	 FIELD_GET(PSR_T_BIT, (regs)->ARM_cpsr))
42 #define isa_mode(regs) 1 /* Thumb */
45 #define processor_mode(regs) \
46 	((regs)->ARM_cpsr & MODE_MASK)
48 #define interrupts_enabled(regs) \
49 	(!((regs)->ARM_cpsr & PSR_I_BIT))
51 #define fast_interrupts_enabled(regs) \
52 	(!((regs)->ARM_cpsr & PSR_F_BIT))
57 static inline int valid_user_regs(struct pt_regs *regs)
60 	unsigned long mode = regs->ARM_cpsr & MODE_MASK;
65 	regs->ARM_cpsr &= ~(PSR_F_BIT | PSR_A_BIT);
67 	if ((regs->ARM_cpsr & PSR_I_BIT) == 0) {
77 	regs->ARM_cpsr &= PSR_f | PSR_s | PSR_x | PSR_T_BIT | MODE32_BIT;
79 		regs->ARM_cpsr |= USR_MODE;
87 static inline long regs_return_value(struct pt_regs *regs)
89 	return regs->ARM_r0;
92 #define instruction_pointer(regs)	(regs)->ARM_pc
95 #define frame_pointer(regs) (regs)->ARM_r7
97 #define frame_pointer(regs) (regs)->ARM_fp
100 static inline void instruction_pointer_set(struct pt_regs *regs,
103 	instruction_pointer(regs) = val;
107 extern unsigned long profile_pc(struct pt_regs *regs);
109 #define profile_pc(regs) instruction_pointer(regs)
131 extern bool regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr);
132 extern unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
137  * @regs:	   pt_regs from which register value is gotten
140  * regs_get_register returns the value of a register whose offset from @regs.
144 static inline unsigned long regs_get_register(struct pt_regs *regs,
149 	return *(unsigned long *)((unsigned long)regs + offset);
153 static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
155 	return regs->ARM_sp;
158 static inline unsigned long user_stack_pointer(struct pt_regs *regs)
160 	return regs->ARM_sp;
167 static inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc)
169 	regs->ARM_r0 = rc;
197 int syscall_trace_enter(struct pt_regs *regs);
198 void syscall_trace_exit(struct pt_regs *regs);