#ifndef _SPARC64_PTRACE_H #define _SPARC64_PTRACE_H #include <asm/pstate.h> /* This struct defines the way the registers are stored on the * stack during a system call and basically all traps. */ /* This magic value must have the low 9 bits clear, * as that is where we encode the %tt value, see below. */ #define PT_REGS_MAGIC 0x57ac6c00 #ifndef __ASSEMBLY__ #include <linux/types.h> struct pt_regs { unsigned long u_regs[16]; /* globals and ins */ unsigned long tstate; unsigned long tpc; unsigned long tnpc; unsigned int y; /* We encode a magic number, PT_REGS_MAGIC, along * with the %tt (trap type) register value at trap * entry time. The magic number allows us to identify * accurately a trap stack frame in the stack * unwinder, and the %tt value allows us to test * things like "in a system call" etc. for an arbitray * process. * * The PT_REGS_MAGIC is choosen such that it can be * loaded completely using just a sethi instruction. */ unsigned int magic; }; struct pt_regs32 { unsigned int psr; unsigned int pc; unsigned int npc; unsigned int y; unsigned int u_regs[16]; /* globals and ins */ }; #define UREG_G0 0 #define UREG_G1 1 #define UREG_G2 2 #define UREG_G3 3 #define UREG_G4 4 #define UREG_G5 5 #define UREG_G6 6 #define UREG_G7 7 #define UREG_I0 8 #define UREG_I1 9 #define UREG_I2 10 #define UREG_I3 11 #define UREG_I4 12 #define UREG_I5 13 #define UREG_I6 14 #define UREG_I7 15 #define UREG_FP UREG_I6 #define UREG_RETPC UREG_I7 /* A V9 register window */ struct reg_window { unsigned long locals[8]; unsigned long ins[8]; }; /* A 32-bit register window. */ struct reg_window32 { unsigned int locals[8]; unsigned int ins[8]; }; /* A V9 Sparc stack frame */ struct sparc_stackf { unsigned long locals[8]; unsigned long ins[6]; struct sparc_stackf *fp; unsigned long callers_pc; char *structptr; unsigned long xargs[6]; unsigned long xxargs[1]; }; /* A 32-bit Sparc stack frame */ struct sparc_stackf32 { unsigned int locals[8]; unsigned int ins[6]; unsigned int fp; unsigned int callers_pc; unsigned int structptr; unsigned int xargs[6]; unsigned int xxargs[1]; }; struct sparc_trapf { unsigned long locals[8]; unsigned long ins[8]; unsigned long _unused; struct pt_regs *regs; }; #define TRACEREG_SZ sizeof(struct pt_regs) #define STACKFRAME_SZ sizeof(struct sparc_stackf) #define TRACEREG32_SZ sizeof(struct pt_regs32) #define STACKFRAME32_SZ sizeof(struct sparc_stackf32) #ifdef __KERNEL__ #include <linux/threads.h> #include <asm/system.h> static inline int pt_regs_trap_type(struct pt_regs *regs) { return regs->magic & 0x1ff; } static inline bool pt_regs_is_syscall(struct pt_regs *regs) { return (regs->tstate & TSTATE_SYSCALL); } static inline bool pt_regs_clear_syscall(struct pt_regs *regs) { return (regs->tstate &= ~TSTATE_SYSCALL); } #define arch_ptrace_stop_needed(exit_code, info) \ ({ flush_user_windows(); \ get_thread_wsaved() != 0; \ }) #define arch_ptrace_stop(exit_code, info) \ synchronize_user_stack() struct global_reg_snapshot { unsigned long tstate; unsigned long tpc; unsigned long tnpc; unsigned long o7; unsigned long i7; unsigned long rpc; struct thread_info *thread; unsigned long pad1; }; extern struct global_reg_snapshot global_reg_snapshot[NR_CPUS]; #define force_successful_syscall_return() \ do { current_thread_info()->syscall_noerror = 1; \ } while (0) #define user_mode(regs) (!((regs)->tstate & TSTATE_PRIV)) #define instruction_pointer(regs) ((regs)->tpc) #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) #define regs_return_value(regs) ((regs)->u_regs[UREG_I0]) #ifdef CONFIG_SMP extern unsigned long profile_pc(struct pt_regs *); #else #define profile_pc(regs) instruction_pointer(regs) #endif extern void show_regs(struct pt_regs *); #endif #else /* __ASSEMBLY__ */ /* For assembly code. */ #define TRACEREG_SZ 0xa0 #define STACKFRAME_SZ 0xc0 #define TRACEREG32_SZ 0x50 #define STACKFRAME32_SZ 0x60 #endif #ifdef __KERNEL__ #define STACK_BIAS 2047 #endif /* These are for pt_regs. */ #define PT_V9_G0 0x00 #define PT_V9_G1 0x08 #define PT_V9_G2 0x10 #define PT_V9_G3 0x18 #define PT_V9_G4 0x20 #define PT_V9_G5 0x28 #define PT_V9_G6 0x30 #define PT_V9_G7 0x38 #define PT_V9_I0 0x40 #define PT_V9_I1 0x48 #define PT_V9_I2 0x50 #define PT_V9_I3 0x58 #define PT_V9_I4 0x60 #define PT_V9_I5 0x68 #define PT_V9_I6 0x70 #define PT_V9_FP PT_V9_I6 #define PT_V9_I7 0x78 #define PT_V9_TSTATE 0x80 #define PT_V9_TPC 0x88 #define PT_V9_TNPC 0x90 #define PT_V9_Y 0x98 #define PT_V9_MAGIC 0x9c #define PT_TSTATE PT_V9_TSTATE #define PT_TPC PT_V9_TPC #define PT_TNPC PT_V9_TNPC /* These for pt_regs32. */ #define PT_PSR 0x0 #define PT_PC 0x4 #define PT_NPC 0x8 #define PT_Y 0xc #define PT_G0 0x10 #define PT_WIM PT_G0 #define PT_G1 0x14 #define PT_G2 0x18 #define PT_G3 0x1c #define PT_G4 0x20 #define PT_G5 0x24 #define PT_G6 0x28 #define PT_G7 0x2c #define PT_I0 0x30 #define PT_I1 0x34 #define PT_I2 0x38 #define PT_I3 0x3c #define PT_I4 0x40 #define PT_I5 0x44 #define PT_I6 0x48 #define PT_FP PT_I6 #define PT_I7 0x4c /* Reg_window offsets */ #define RW_V9_L0 0x00 #define RW_V9_L1 0x08 #define RW_V9_L2 0x10 #define RW_V9_L3 0x18 #define RW_V9_L4 0x20 #define RW_V9_L5 0x28 #define RW_V9_L6 0x30 #define RW_V9_L7 0x38 #define RW_V9_I0 0x40 #define RW_V9_I1 0x48 #define RW_V9_I2 0x50 #define RW_V9_I3 0x58 #define RW_V9_I4 0x60 #define RW_V9_I5 0x68 #define RW_V9_I6 0x70 #define RW_V9_I7 0x78 #define RW_L0 0x00 #define RW_L1 0x04 #define RW_L2 0x08 #define RW_L3 0x0c #define RW_L4 0x10 #define RW_L5 0x14 #define RW_L6 0x18 #define RW_L7 0x1c #define RW_I0 0x20 #define RW_I1 0x24 #define RW_I2 0x28 #define RW_I3 0x2c #define RW_I4 0x30 #define RW_I5 0x34 #define RW_I6 0x38 #define RW_I7 0x3c /* Stack_frame offsets */ #define SF_V9_L0 0x00 #define SF_V9_L1 0x08 #define SF_V9_L2 0x10 #define SF_V9_L3 0x18 #define SF_V9_L4 0x20 #define SF_V9_L5 0x28 #define SF_V9_L6 0x30 #define SF_V9_L7 0x38 #define SF_V9_I0 0x40 #define SF_V9_I1 0x48 #define SF_V9_I2 0x50 #define SF_V9_I3 0x58 #define SF_V9_I4 0x60 #define SF_V9_I5 0x68 #define SF_V9_FP 0x70 #define SF_V9_PC 0x78 #define SF_V9_RETP 0x80 #define SF_V9_XARG0 0x88 #define SF_V9_XARG1 0x90 #define SF_V9_XARG2 0x98 #define SF_V9_XARG3 0xa0 #define SF_V9_XARG4 0xa8 #define SF_V9_XARG5 0xb0 #define SF_V9_XXARG 0xb8 #define SF_L0 0x00 #define SF_L1 0x04 #define SF_L2 0x08 #define SF_L3 0x0c #define SF_L4 0x10 #define SF_L5 0x14 #define SF_L6 0x18 #define SF_L7 0x1c #define SF_I0 0x20 #define SF_I1 0x24 #define SF_I2 0x28 #define SF_I3 0x2c #define SF_I4 0x30 #define SF_I5 0x34 #define SF_FP 0x38 #define SF_PC 0x3c #define SF_RETP 0x40 #define SF_XARG0 0x44 #define SF_XARG1 0x48 #define SF_XARG2 0x4c #define SF_XARG3 0x50 #define SF_XARG4 0x54 #define SF_XARG5 0x58 #define SF_XXARG 0x5c #ifdef __KERNEL__ /* global_reg_snapshot offsets */ #define GR_SNAP_TSTATE 0x00 #define GR_SNAP_TPC 0x08 #define GR_SNAP_TNPC 0x10 #define GR_SNAP_O7 0x18 #define GR_SNAP_I7 0x20 #define GR_SNAP_RPC 0x28 #define GR_SNAP_THREAD 0x30 #define GR_SNAP_PAD1 0x38 #endif /* __KERNEL__ */ /* Stuff for the ptrace system call */ #define PTRACE_SPARC_DETACH 11 #define PTRACE_GETREGS 12 #define PTRACE_SETREGS 13 #define PTRACE_GETFPREGS 14 #define PTRACE_SETFPREGS 15 #define PTRACE_READDATA 16 #define PTRACE_WRITEDATA 17 #define PTRACE_READTEXT 18 #define PTRACE_WRITETEXT 19 #define PTRACE_GETFPAREGS 20 #define PTRACE_SETFPAREGS 21 /* There are for debugging 64-bit processes, either from a 32 or 64 bit * parent. Thus their complements are for debugging 32-bit processes only. */ #define PTRACE_GETREGS64 22 #define PTRACE_SETREGS64 23 /* PTRACE_SYSCALL is 24 */ #define PTRACE_GETFPREGS64 25 #define PTRACE_SETFPREGS64 26 #endif /* !(_SPARC64_PTRACE_H) */