Commit | Line | Data |
---|---|---|
f3ec38d5 SR |
1 | #ifndef __SPARC_PTRACE_H |
2 | #define __SPARC_PTRACE_H | |
3 | ||
54579826 | 4 | #include <uapi/asm/ptrace.h> |
f3ec38d5 SR |
5 | |
6 | #if defined(__sparc__) && defined(__arch64__) | |
f3ec38d5 SR |
7 | #ifndef __ASSEMBLY__ |
8 | ||
f3ec38d5 | 9 | #include <linux/threads.h> |
7f55ba9c | 10 | #include <asm/switch_to.h> |
f3ec38d5 SR |
11 | |
12 | static inline int pt_regs_trap_type(struct pt_regs *regs) | |
13 | { | |
14 | return regs->magic & 0x1ff; | |
15 | } | |
16 | ||
17 | static inline bool pt_regs_is_syscall(struct pt_regs *regs) | |
18 | { | |
19 | return (regs->tstate & TSTATE_SYSCALL); | |
20 | } | |
21 | ||
22 | static inline bool pt_regs_clear_syscall(struct pt_regs *regs) | |
23 | { | |
24 | return (regs->tstate &= ~TSTATE_SYSCALL); | |
25 | } | |
26 | ||
27 | #define arch_ptrace_stop_needed(exit_code, info) \ | |
28 | ({ flush_user_windows(); \ | |
29 | get_thread_wsaved() != 0; \ | |
30 | }) | |
31 | ||
32 | #define arch_ptrace_stop(exit_code, info) \ | |
33 | synchronize_user_stack() | |
34 | ||
1918c7f5 AV |
35 | #define current_pt_regs() \ |
36 | ((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE) - 1) | |
37 | ||
f3ec38d5 SR |
38 | struct global_reg_snapshot { |
39 | unsigned long tstate; | |
40 | unsigned long tpc; | |
41 | unsigned long tnpc; | |
42 | unsigned long o7; | |
43 | unsigned long i7; | |
44 | unsigned long rpc; | |
45 | struct thread_info *thread; | |
46 | unsigned long pad1; | |
47 | }; | |
916ca14a DM |
48 | |
49 | struct global_pmu_snapshot { | |
50 | unsigned long pcr[4]; | |
51 | unsigned long pic[4]; | |
52 | }; | |
53 | ||
54 | union global_cpu_snapshot { | |
55 | struct global_reg_snapshot reg; | |
56 | struct global_pmu_snapshot pmu; | |
57 | }; | |
58 | ||
59 | extern union global_cpu_snapshot global_cpu_snapshot[NR_CPUS]; | |
f3ec38d5 | 60 | |
dff933da | 61 | #define force_successful_syscall_return() set_thread_noerror(1) |
f3ec38d5 SR |
62 | #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV)) |
63 | #define instruction_pointer(regs) ((regs)->tpc) | |
33d8881a | 64 | #define instruction_pointer_set(regs, val) ((regs)->tpc = (val)) |
f3ec38d5 | 65 | #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) |
d7e7528b EP |
66 | static inline int is_syscall_success(struct pt_regs *regs) |
67 | { | |
68 | return !(regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY)); | |
69 | } | |
70 | ||
71 | static inline long regs_return_value(struct pt_regs *regs) | |
72 | { | |
73 | return regs->u_regs[UREG_I0]; | |
74 | } | |
f3ec38d5 | 75 | #ifdef CONFIG_SMP |
f05a6865 | 76 | unsigned long profile_pc(struct pt_regs *); |
f3ec38d5 SR |
77 | #else |
78 | #define profile_pc(regs) instruction_pointer(regs) | |
1da177e4 | 79 | #endif |
f3ec38d5 | 80 | #else /* __ASSEMBLY__ */ |
f3ec38d5 | 81 | #endif /* __ASSEMBLY__ */ |
f3ec38d5 | 82 | #else /* (defined(__sparc__) && defined(__arch64__)) */ |
f3ec38d5 | 83 | #ifndef __ASSEMBLY__ |
bde4d8b2 | 84 | #include <asm/switch_to.h> |
f3ec38d5 | 85 | |
f3ec38d5 SR |
86 | static inline bool pt_regs_is_syscall(struct pt_regs *regs) |
87 | { | |
88 | return (regs->psr & PSR_SYSCALL); | |
89 | } | |
90 | ||
91 | static inline bool pt_regs_clear_syscall(struct pt_regs *regs) | |
92 | { | |
93 | return (regs->psr &= ~PSR_SYSCALL); | |
94 | } | |
95 | ||
96 | #define arch_ptrace_stop_needed(exit_code, info) \ | |
97 | ({ flush_user_windows(); \ | |
98 | current_thread_info()->w_saved != 0; \ | |
99 | }) | |
100 | ||
101 | #define arch_ptrace_stop(exit_code, info) \ | |
102 | synchronize_user_stack() | |
103 | ||
ab348681 AV |
104 | #define current_pt_regs() \ |
105 | ((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE) - 1) | |
106 | ||
f3ec38d5 SR |
107 | #define user_mode(regs) (!((regs)->psr & PSR_PS)) |
108 | #define instruction_pointer(regs) ((regs)->pc) | |
109 | #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) | |
110 | unsigned long profile_pc(struct pt_regs *); | |
f3ec38d5 | 111 | #else /* (!__ASSEMBLY__) */ |
f3ec38d5 | 112 | #endif /* (!__ASSEMBLY__) */ |
f3ec38d5 | 113 | #endif /* (defined(__sparc__) && defined(__arch64__)) */ |
f3ec38d5 | 114 | #define STACK_BIAS 2047 |
f3ec38d5 SR |
115 | |
116 | /* global_reg_snapshot offsets */ | |
117 | #define GR_SNAP_TSTATE 0x00 | |
118 | #define GR_SNAP_TPC 0x08 | |
119 | #define GR_SNAP_TNPC 0x10 | |
120 | #define GR_SNAP_O7 0x18 | |
121 | #define GR_SNAP_I7 0x20 | |
122 | #define GR_SNAP_RPC 0x28 | |
123 | #define GR_SNAP_THREAD 0x30 | |
124 | #define GR_SNAP_PAD1 0x38 | |
125 | ||
f3ec38d5 | 126 | #endif /* !(__SPARC_PTRACE_H) */ |