gfiber / kernel / lockdown / e150fbd048ac7d1c81709a6fe9ba49504594d4da / . / arch / ia64 / include / uapi / asm / ptrace.h

/* | |

* Copyright (C) 1998-2004 Hewlett-Packard Co | |

* David Mosberger-Tang <davidm@hpl.hp.com> | |

* Stephane Eranian <eranian@hpl.hp.com> | |

* Copyright (C) 2003 Intel Co | |

* Suresh Siddha <suresh.b.siddha@intel.com> | |

* Fenghua Yu <fenghua.yu@intel.com> | |

* Arun Sharma <arun.sharma@intel.com> | |

* | |

* 12/07/98 S. Eranian added pt_regs & switch_stack | |

* 12/21/98 D. Mosberger updated to match latest code | |

* 6/17/99 D. Mosberger added second unat member to "struct switch_stack" | |

* | |

*/ | |

#ifndef _UAPI_ASM_IA64_PTRACE_H | |

#define _UAPI_ASM_IA64_PTRACE_H | |

/* | |

* When a user process is blocked, its state looks as follows: | |

* | |

* +----------------------+ ------- IA64_STK_OFFSET | |

* | | ^ | |

* | struct pt_regs | | | |

* | | | | |

* +----------------------+ | | |

* | | | | |

* | memory stack | | | |

* | (growing downwards) | | | |

* //.....................// | | |

* | | |

* //.....................// | | |

* | | | | |

* +----------------------+ | | |

* | struct switch_stack | | | |

* | | | | |

* +----------------------+ | | |

* | | | | |

* //.....................// | | |

* | | |

* //.....................// | | |

* | | | | |

* | register stack | | | |

* | (growing upwards) | | | |

* | | | | |

* +----------------------+ | --- IA64_RBS_OFFSET | |

* | struct thread_info | | ^ | |

* +----------------------+ | | | |

* | | | | | |

* | struct task_struct | | | | |

* current -> | | | | | |

* +----------------------+ ------- | |

* | |

* Note that ar.ec is not saved explicitly in pt_reg or switch_stack. | |

* This is because ar.ec is saved as part of ar.pfs. | |

*/ | |

#include <asm/fpu.h> | |

#ifndef __ASSEMBLY__ | |

/* | |

* This struct defines the way the registers are saved on system | |

* calls. | |

* | |

* We don't save all floating point register because the kernel | |

* is compiled to use only a very small subset, so the other are | |

* untouched. | |

* | |

* THIS STRUCTURE MUST BE A MULTIPLE 16-BYTE IN SIZE | |

* (because the memory stack pointer MUST ALWAYS be aligned this way) | |

* | |

*/ | |

struct pt_regs { | |

/* The following registers are saved by SAVE_MIN: */ | |

unsigned long b6; /* scratch */ | |

unsigned long b7; /* scratch */ | |

unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */ | |

unsigned long ar_ssd; /* reserved for future use (scratch) */ | |

unsigned long r8; /* scratch (return value register 0) */ | |

unsigned long r9; /* scratch (return value register 1) */ | |

unsigned long r10; /* scratch (return value register 2) */ | |

unsigned long r11; /* scratch (return value register 3) */ | |

unsigned long cr_ipsr; /* interrupted task's psr */ | |

unsigned long cr_iip; /* interrupted task's instruction pointer */ | |

/* | |

* interrupted task's function state; if bit 63 is cleared, it | |

* contains syscall's ar.pfs.pfm: | |

*/ | |

unsigned long cr_ifs; | |

unsigned long ar_unat; /* interrupted task's NaT register (preserved) */ | |

unsigned long ar_pfs; /* prev function state */ | |

unsigned long ar_rsc; /* RSE configuration */ | |

/* The following two are valid only if cr_ipsr.cpl > 0 || ti->flags & _TIF_MCA_INIT */ | |

unsigned long ar_rnat; /* RSE NaT */ | |

unsigned long ar_bspstore; /* RSE bspstore */ | |

unsigned long pr; /* 64 predicate registers (1 bit each) */ | |

unsigned long b0; /* return pointer (bp) */ | |

unsigned long loadrs; /* size of dirty partition << 16 */ | |

unsigned long r1; /* the gp pointer */ | |

unsigned long r12; /* interrupted task's memory stack pointer */ | |

unsigned long r13; /* thread pointer */ | |

unsigned long ar_fpsr; /* floating point status (preserved) */ | |

unsigned long r15; /* scratch */ | |

/* The remaining registers are NOT saved for system calls. */ | |

unsigned long r14; /* scratch */ | |

unsigned long r2; /* scratch */ | |

unsigned long r3; /* scratch */ | |

/* The following registers are saved by SAVE_REST: */ | |

unsigned long r16; /* scratch */ | |

unsigned long r17; /* scratch */ | |

unsigned long r18; /* scratch */ | |

unsigned long r19; /* scratch */ | |

unsigned long r20; /* scratch */ | |

unsigned long r21; /* scratch */ | |

unsigned long r22; /* scratch */ | |

unsigned long r23; /* scratch */ | |

unsigned long r24; /* scratch */ | |

unsigned long r25; /* scratch */ | |

unsigned long r26; /* scratch */ | |

unsigned long r27; /* scratch */ | |

unsigned long r28; /* scratch */ | |

unsigned long r29; /* scratch */ | |

unsigned long r30; /* scratch */ | |

unsigned long r31; /* scratch */ | |

unsigned long ar_ccv; /* compare/exchange value (scratch) */ | |

/* | |

* Floating point registers that the kernel considers scratch: | |

*/ | |

struct ia64_fpreg f6; /* scratch */ | |

struct ia64_fpreg f7; /* scratch */ | |

struct ia64_fpreg f8; /* scratch */ | |

struct ia64_fpreg f9; /* scratch */ | |

struct ia64_fpreg f10; /* scratch */ | |

struct ia64_fpreg f11; /* scratch */ | |

}; | |

/* | |

* This structure contains the addition registers that need to | |

* preserved across a context switch. This generally consists of | |

* "preserved" registers. | |

*/ | |

struct switch_stack { | |

unsigned long caller_unat; /* user NaT collection register (preserved) */ | |

unsigned long ar_fpsr; /* floating-point status register */ | |

struct ia64_fpreg f2; /* preserved */ | |

struct ia64_fpreg f3; /* preserved */ | |

struct ia64_fpreg f4; /* preserved */ | |

struct ia64_fpreg f5; /* preserved */ | |

struct ia64_fpreg f12; /* scratch, but untouched by kernel */ | |

struct ia64_fpreg f13; /* scratch, but untouched by kernel */ | |

struct ia64_fpreg f14; /* scratch, but untouched by kernel */ | |

struct ia64_fpreg f15; /* scratch, but untouched by kernel */ | |

struct ia64_fpreg f16; /* preserved */ | |

struct ia64_fpreg f17; /* preserved */ | |

struct ia64_fpreg f18; /* preserved */ | |

struct ia64_fpreg f19; /* preserved */ | |

struct ia64_fpreg f20; /* preserved */ | |

struct ia64_fpreg f21; /* preserved */ | |

struct ia64_fpreg f22; /* preserved */ | |

struct ia64_fpreg f23; /* preserved */ | |

struct ia64_fpreg f24; /* preserved */ | |

struct ia64_fpreg f25; /* preserved */ | |

struct ia64_fpreg f26; /* preserved */ | |

struct ia64_fpreg f27; /* preserved */ | |

struct ia64_fpreg f28; /* preserved */ | |

struct ia64_fpreg f29; /* preserved */ | |

struct ia64_fpreg f30; /* preserved */ | |

struct ia64_fpreg f31; /* preserved */ | |

unsigned long r4; /* preserved */ | |

unsigned long r5; /* preserved */ | |

unsigned long r6; /* preserved */ | |

unsigned long r7; /* preserved */ | |

unsigned long b0; /* so we can force a direct return in copy_thread */ | |

unsigned long b1; | |

unsigned long b2; | |

unsigned long b3; | |

unsigned long b4; | |

unsigned long b5; | |

unsigned long ar_pfs; /* previous function state */ | |

unsigned long ar_lc; /* loop counter (preserved) */ | |

unsigned long ar_unat; /* NaT bits for r4-r7 */ | |

unsigned long ar_rnat; /* RSE NaT collection register */ | |

unsigned long ar_bspstore; /* RSE dirty base (preserved) */ | |

unsigned long pr; /* 64 predicate registers (1 bit each) */ | |

}; | |

/* pt_all_user_regs is used for PTRACE_GETREGS PTRACE_SETREGS */ | |

struct pt_all_user_regs { | |

unsigned long nat; | |

unsigned long cr_iip; | |

unsigned long cfm; | |

unsigned long cr_ipsr; | |

unsigned long pr; | |

unsigned long gr[32]; | |

unsigned long br[8]; | |

unsigned long ar[128]; | |

struct ia64_fpreg fr[128]; | |

}; | |

#endif /* !__ASSEMBLY__ */ | |

/* indices to application-registers array in pt_all_user_regs */ | |

#define PT_AUR_RSC 16 | |

#define PT_AUR_BSP 17 | |

#define PT_AUR_BSPSTORE 18 | |

#define PT_AUR_RNAT 19 | |

#define PT_AUR_CCV 32 | |

#define PT_AUR_UNAT 36 | |

#define PT_AUR_FPSR 40 | |

#define PT_AUR_PFS 64 | |

#define PT_AUR_LC 65 | |

#define PT_AUR_EC 66 | |

/* | |

* The numbers chosen here are somewhat arbitrary but absolutely MUST | |

* not overlap with any of the number assigned in <linux/ptrace.h>. | |

*/ | |

#define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ | |

#define PTRACE_OLD_GETSIGINFO 13 /* (replaced by PTRACE_GETSIGINFO in <linux/ptrace.h>) */ | |

#define PTRACE_OLD_SETSIGINFO 14 /* (replaced by PTRACE_SETSIGINFO in <linux/ptrace.h>) */ | |

#define PTRACE_GETREGS 18 /* get all registers (pt_all_user_regs) in one shot */ | |

#define PTRACE_SETREGS 19 /* set all registers (pt_all_user_regs) in one shot */ | |

#define PTRACE_OLDSETOPTIONS 21 | |

#endif /* _UAPI_ASM_IA64_PTRACE_H */ |