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      1 /* Copyright (C) 2006-2014 Free Software Foundation, Inc.
      2    This file is part of the GNU C Library.
      3 
      4    The GNU C Library is free software; you can redistribute it and/or
      5    modify it under the terms of the GNU Lesser General Public
      6    License as published by the Free Software Foundation; either
      7    version 2.1 of the License, or (at your option) any later version.
      8 
      9    The GNU C Library is distributed in the hope that it will be useful,
     10    but WITHOUT ANY WARRANTY; without even the implied warranty of
     11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12    Lesser General Public License for more details.
     13 
     14    You should have received a copy of the GNU Lesser General Public
     15    License along with the GNU C Library; if not, write to the Free
     16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     17    02111-1307 USA.  */
     18 
     19 /* This is somewhat modelled after the file of the same name on SVR4
     20    systems.  It provides a definition of the core file format for ELF
     21    used on Linux.  It doesn't have anything to do with the /proc file
     22    system, even though Linux has one.
     23 
     24    Anyway, the whole purpose of this file is for GDB and GDB only.
     25    Don't read too much into it.  Don't use it for anything other than
     26    GDB unless you know what you are doing.  */
     27 
     28 #include <features.h>
     29 #include <sys/time.h>
     30 #include <sys/types.h>
     31 
     32 /* We define here only the symbols differing from their 64-bit variant.  */
     33 #include <sys/procfs.h>
     34 
     35 #ifdef HAVE_STDINT_H
     36 #include <stdint.h>
     37 #else
     38 typedef unsigned int uint32_t;
     39 typedef unsigned long long int uint64_t;
     40 #endif
     41 
     42 /* Unsigned 64-bit integer aligned to 8 bytes.  */
     43 typedef uint64_t __attribute__ ((__aligned__ (8))) a8_uint64_t;
     44 
     45 #undef HAVE_PRPSINFO32_T
     46 #define HAVE_PRPSINFO32_T
     47 #undef HAVE_PRPSINFO32_T_PR_PID
     48 #define HAVE_PRPSINFO32_T_PR_PID
     49 
     50 #undef HAVE_PRSTATUS32_T
     51 #define HAVE_PRSTATUS32_T
     52 
     53 /* These are the 32-bit x86 structures.  */
     54 
     55 struct user_regs32_struct
     56 {
     57   int32_t ebx;
     58   int32_t ecx;
     59   int32_t edx;
     60   int32_t esi;
     61   int32_t edi;
     62   int32_t ebp;
     63   int32_t eax;
     64   int32_t xds;
     65   int32_t xes;
     66   int32_t xfs;
     67   int32_t xgs;
     68   int32_t orig_eax;
     69   int32_t eip;
     70   int32_t xcs;
     71   int32_t eflags;
     72   int32_t esp;
     73   int32_t xss;
     74 };
     75 
     76 struct user_regs64_struct
     77 {
     78   a8_uint64_t r15;
     79   a8_uint64_t r14;
     80   a8_uint64_t r13;
     81   a8_uint64_t r12;
     82   a8_uint64_t rbp;
     83   a8_uint64_t rbx;
     84   a8_uint64_t r11;
     85   a8_uint64_t r10;
     86   a8_uint64_t r9;
     87   a8_uint64_t r8;
     88   a8_uint64_t rax;
     89   a8_uint64_t rcx;
     90   a8_uint64_t rdx;
     91   a8_uint64_t rsi;
     92   a8_uint64_t rdi;
     93   a8_uint64_t orig_rax;
     94   a8_uint64_t rip;
     95   a8_uint64_t cs;
     96   a8_uint64_t eflags;
     97   a8_uint64_t rsp;
     98   a8_uint64_t ss;
     99   a8_uint64_t fs_base;
    100   a8_uint64_t gs_base;
    101   a8_uint64_t ds;
    102   a8_uint64_t es;
    103   a8_uint64_t fs;
    104   a8_uint64_t gs;
    105 };
    106 
    107 /* Type for a general-purpose register.  */
    108 typedef uint32_t elf_greg32_t;
    109 typedef a8_uint64_t elf_greg64_t;
    110 
    111 /* And the whole bunch of them.  We could have used `struct
    112    user_regs_struct' directly in the typedef, but tradition says that
    113    the register set is an array, which does have some peculiar
    114    semantics, so leave it that way.  */
    115 #define ELF_NGREG32 (sizeof (struct user_regs32_struct) / sizeof(elf_greg32_t))
    116 typedef elf_greg32_t elf_gregset32_t[ELF_NGREG32];
    117 #define ELF_NGREG64 (sizeof (struct user_regs64_struct) / sizeof(elf_greg64_t))
    118 typedef elf_greg64_t elf_gregset64_t[ELF_NGREG64];
    119 
    120 /* Definitions to generate Intel SVR4-like core files.  These mostly
    121    have the same names as the SVR4 types with "elf_" tacked on the
    122    front to prevent clashes with Linux definitions, and the typedef
    123    forms have been avoided.  This is mostly like the SVR4 structure,
    124    but more Linuxy, with things that Linux does not support and which
    125    GDB doesn't really use excluded.  */
    126 
    127 struct prstatus32_timeval
    128   {
    129     int tv_sec;
    130     int tv_usec;
    131   };
    132 
    133 struct prstatus64_timeval
    134   {
    135     a8_uint64_t tv_sec;
    136     a8_uint64_t tv_usec;
    137   };
    138 
    139 struct elf_prstatus32
    140   {
    141     struct elf_siginfo pr_info;		/* Info associated with signal.  */
    142     short int pr_cursig;		/* Current signal.  */
    143     unsigned int pr_sigpend;		/* Set of pending signals.  */
    144     unsigned int pr_sighold;		/* Set of held signals.  */
    145     pid_t pr_pid;
    146     pid_t pr_ppid;
    147     pid_t pr_pgrp;
    148     pid_t pr_sid;
    149     struct prstatus32_timeval pr_utime;		/* User time.  */
    150     struct prstatus32_timeval pr_stime;		/* System time.  */
    151     struct prstatus32_timeval pr_cutime;	/* Cumulative user time.  */
    152     struct prstatus32_timeval pr_cstime;	/* Cumulative system time.  */
    153     elf_gregset32_t pr_reg;		/* GP registers.  */
    154     int pr_fpvalid;			/* True if math copro being used.  */
    155   };
    156 
    157 struct elf_prstatusx32
    158   {
    159     struct elf_siginfo pr_info;		/* Info associated with signal.  */
    160     short int pr_cursig;		/* Current signal.  */
    161     unsigned int pr_sigpend;		/* Set of pending signals.  */
    162     unsigned int pr_sighold;		/* Set of held signals.  */
    163     pid_t pr_pid;
    164     pid_t pr_ppid;
    165     pid_t pr_pgrp;
    166     pid_t pr_sid;
    167     struct prstatus32_timeval pr_utime;		/* User time.  */
    168     struct prstatus32_timeval pr_stime;		/* System time.  */
    169     struct prstatus32_timeval pr_cutime;	/* Cumulative user time.  */
    170     struct prstatus32_timeval pr_cstime;	/* Cumulative system time.  */
    171     elf_gregset64_t pr_reg;		/* GP registers.  */
    172     int pr_fpvalid;			/* True if math copro being used.  */
    173   };
    174 
    175 struct elf_prstatus64
    176   {
    177     struct elf_siginfo pr_info;	/* Info associated with signal.  */
    178     short int pr_cursig;		/* Current signal.  */
    179     a8_uint64_t pr_sigpend;		/* Set of pending signals.  */
    180     a8_uint64_t pr_sighold;		/* Set of held signals.  */
    181     pid_t pr_pid;
    182     pid_t pr_ppid;
    183     pid_t pr_pgrp;
    184     pid_t pr_sid;
    185     struct prstatus64_timeval pr_utime;		/* User time.  */
    186     struct prstatus64_timeval pr_stime;		/* System time.  */
    187     struct prstatus64_timeval pr_cutime;	/* Cumulative user time.  */
    188     struct prstatus64_timeval pr_cstime;	/* Cumulative system time.  */
    189     elf_gregset64_t pr_reg;		/* GP registers.  */
    190     int pr_fpvalid;			/* True if math copro being used.  */
    191   };
    192 
    193 struct elf_prpsinfo32
    194   {
    195     char pr_state;			/* Numeric process state.  */
    196     char pr_sname;			/* Char for pr_state.  */
    197     char pr_zomb;			/* Zombie.  */
    198     char pr_nice;			/* Nice val.  */
    199     unsigned int pr_flag;		/* Flags.  */
    200     unsigned short int pr_uid;
    201     unsigned short int pr_gid;
    202     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
    203     /* Lots missing */
    204     char pr_fname[16];			/* Filename of executable.  */
    205     char pr_psargs[ELF_PRARGSZ];	/* Initial part of arg list.  */
    206   };
    207 
    208 struct elf_prpsinfo64
    209   {
    210     char pr_state;			/* Numeric process state.  */
    211     char pr_sname;			/* Char for pr_state.  */
    212     char pr_zomb;			/* Zombie.  */
    213     char pr_nice;			/* Nice val.  */
    214     a8_uint64_t pr_flag;		/* Flags.  */
    215     unsigned int pr_uid;
    216     unsigned int pr_gid;
    217     int pr_pid, pr_ppid, pr_pgrp, pr_sid;
    218     /* Lots missing */
    219     char pr_fname[16];			/* Filename of executable.  */
    220     char pr_psargs[ELF_PRARGSZ];	/* Initial part of arg list.  */
    221   };
    222 
    223 /* The rest of this file provides the types for emulation of the
    224    Solaris <proc_service.h> interfaces that should be implemented by
    225    users of libthread_db.  */
    226 
    227 /* Process status and info.  In the end we do provide typedefs for them.  */
    228 typedef struct elf_prstatus32 prstatus32_t;
    229 typedef struct elf_prstatusx32 prstatusx32_t;
    230 typedef struct elf_prstatus64 prstatus64_t;
    231 typedef struct elf_prpsinfo32 prpsinfo32_t;
    232 typedef struct elf_prpsinfo64 prpsinfo64_t;
    233