3 * Copyright IBM Corp. 1999, 2000
4 * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
9 #include <uapi/asm/ptrace.h>
13 #define PSW_KERNEL_BITS (PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_HOME | \
14 PSW_MASK_EA | PSW_MASK_BA)
15 #define PSW_USER_BITS (PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | \
16 PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_MCHECK | \
17 PSW_MASK_PSTATE | PSW_ASC_PRIMARY)
20 * The pt_regs struct defines the way the registers are stored on
21 * the stack during a system call.
25 unsigned long args
[1];
27 unsigned long gprs
[NUM_GPRS
];
28 unsigned long orig_gpr2
;
29 unsigned int int_code
;
30 unsigned int int_parm
;
31 unsigned long int_parm_long
;
35 * Program event recording (PER) register set.
38 unsigned long control
; /* PER control bits */
39 unsigned long start
; /* PER starting address */
40 unsigned long end
; /* PER ending address */
44 * PER event contains information about the cause of the last PER exception.
47 unsigned short cause
; /* PER code, ATMID and AI */
48 unsigned long address
; /* PER address */
49 unsigned char paid
; /* PER access identification */
53 * Simplified per_info structure used to decode the ptrace user space ABI.
55 struct per_struct_kernel
{
56 unsigned long cr9
; /* PER control bits */
57 unsigned long cr10
; /* PER starting address */
58 unsigned long cr11
; /* PER ending address */
59 unsigned long bits
; /* Obsolete software bits */
60 unsigned long starting_addr
; /* User specified start address */
61 unsigned long ending_addr
; /* User specified end address */
62 unsigned short perc_atmid
; /* PER trap ATMID */
63 unsigned long address
; /* PER trap instruction address */
64 unsigned char access_id
; /* PER trap access identification */
67 #define PER_EVENT_MASK 0xEB000000UL
69 #define PER_EVENT_BRANCH 0x80000000UL
70 #define PER_EVENT_IFETCH 0x40000000UL
71 #define PER_EVENT_STORE 0x20000000UL
72 #define PER_EVENT_STORE_REAL 0x08000000UL
73 #define PER_EVENT_TRANSACTION_END 0x02000000UL
74 #define PER_EVENT_NULLIFICATION 0x01000000UL
76 #define PER_CONTROL_MASK 0x00e00000UL
78 #define PER_CONTROL_BRANCH_ADDRESS 0x00800000UL
79 #define PER_CONTROL_SUSPENSION 0x00400000UL
80 #define PER_CONTROL_ALTERATION 0x00200000UL
83 * These are defined as per linux/ptrace.h, which see.
85 #define arch_has_single_step() (1)
87 #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
88 #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
89 #define user_stack_pointer(regs)((regs)->gprs[15])
90 #define profile_pc(regs) instruction_pointer(regs)
92 static inline long regs_return_value(struct pt_regs
*regs
)
97 int regs_query_register_offset(const char *name
);
98 const char *regs_query_register_name(unsigned int offset
);
99 unsigned long regs_get_register(struct pt_regs
*regs
, unsigned int offset
);
100 unsigned long regs_get_kernel_stack_nth(struct pt_regs
*regs
, unsigned int n
);
102 static inline unsigned long kernel_stack_pointer(struct pt_regs
*regs
)
104 return regs
->gprs
[15] & PSW_ADDR_INSN
;
107 #endif /* __ASSEMBLY__ */
108 #endif /* _S390_PTRACE_H */
This page took 0.157296 seconds and 5 git commands to generate.