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struct pt_regs {
unsigned long gpr[32];
unsigned long nip;
unsigned long msr;
unsigned long orig_gpr3; /* Used for restarting system calls */
unsigned long ctr;
unsigned long link;
unsigned long xer;
unsigned long ccr;
unsigned long mq; /* 601 only (not used at present) */
/* Used on APUS to hold IPL value. */
unsigned long trap; /* Reason for being here */
unsigned long dar; /* Fault registers */
unsigned long dsisr;
unsigned long result; /* Result of a system call */
};
/*
* Offsets used by 'ptrace' system call interface.
* These can't be changed without breaking binary compatibility
* with MkLinux, etc.
*/
#define PT_R0 0
#define PT_R1 1
#define PT_R2 2
#define PT_R3 3
#define PT_R4 4
#define PT_R5 5
#define PT_R6 6
#define PT_R7 7
#define PT_R8 8
#define PT_R9 9
#define PT_R10 10
#define PT_R11 11
#define PT_R12 12
#define PT_R13 13
#define PT_R14 14
#define PT_R15 15
#define PT_R16 16
#define PT_R17 17
#define PT_R18 18
#define PT_R19 19
#define PT_R20 20
#define PT_R21 21
#define PT_R22 22
#define PT_R23 23
#define PT_R24 24
#define PT_R25 25
#define PT_R26 26
#define PT_R27 27
#define PT_R28 28
#define PT_R29 29
#define PT_R30 30
#define PT_R31 31
#define PT_NIP 32
#define PT_MSR 33
#define PT_CTR 35
#define PT_LNK 36
#define PT_XER 37
#define PT_CCR 38
#define PT_MQ 39
#define PT_FPR0 48 /* each FP reg occupies 2 slots in this space */
#define PT_FPR31 (PT_FPR0 + 2*31)
#define PT_FPSCR (PT_FPR0 + 2*32 + 1)
#define sigcontext_struct sigcontext
struct sigcontext {
unsigned long _unused[4];
int signal;
unsigned long handler;
unsigned long oldmask;
struct pt_regs *regs;
};
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