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/* Common core note type descriptions for Linux.
Copyright (C) 2007-2010 Red Hat, Inc.
This file is part of Red Hat elfutils.
Red Hat elfutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by the
Free Software Foundation; version 2 of the License.
Red Hat elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along
with Red Hat elfutils; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
Red Hat elfutils is an included package of the Open Invention Network.
An included package of the Open Invention Network is a package for which
Open Invention Network licensees cross-license their patents. No patent
license is granted, either expressly or impliedly, by designation as an
included package. Should you wish to participate in the Open Invention
Network licensing program, please visit www.openinventionnetwork.com
<http://www.openinventionnetwork.com>. */
#include <string.h>
/* The including CPU_corenote.c file provides prstatus_regs and
defines macros ULONG, [PUG]ID_T, and ALIGN_*, TYPE_*.
Here we describe the common layout used in <linux/elfcore.h>. */
#define CHAR int8_t
#define ALIGN_CHAR 1
#define TYPE_CHAR ELF_T_BYTE
#define SHORT uint16_t
#define ALIGN_SHORT 2
#define TYPE_SHORT ELF_T_HALF
#define INT int32_t
#define ALIGN_INT 4
#define TYPE_INT ELF_T_SWORD
#define FIELD(type, name) type name __attribute__ ((aligned (ALIGN_##type)))
struct EBLHOOK(siginfo)
{
FIELD (INT, si_signo);
FIELD (INT, si_code);
FIELD (INT, si_errno);
};
struct EBLHOOK(timeval)
{
FIELD (ULONG, tv_sec);
FIELD (ULONG, tv_usec);
};
/* On sparc64, tv_usec (suseconds_t) is actually 32 bits with 32 bits padding.
The 'T'|0x80 value for .format indicates this as a special kludge. */
#if SUSECONDS_HALF
# define TIMEVAL_FIELD(name) FIELD (time, ULONG, name, 'T'|0x80, .count = 2)
#else
# define TIMEVAL_FIELD(name) FIELD (time, ULONG, name, 'T', .count = 2)
#endif
struct EBLHOOK(prstatus)
{
struct EBLHOOK(siginfo) pr_info;
FIELD (SHORT, pr_cursig);
FIELD (ULONG, pr_sigpend);
FIELD (ULONG, pr_sighold);
FIELD (PID_T, pr_pid);
FIELD (PID_T, pr_ppid);
FIELD (PID_T, pr_pgrp);
FIELD (PID_T, pr_sid);
struct EBLHOOK(timeval) pr_utime;
struct EBLHOOK(timeval) pr_stime;
struct EBLHOOK(timeval) pr_cutime;
struct EBLHOOK(timeval) pr_cstime;
FIELD (ULONG, pr_reg[PRSTATUS_REGS_SIZE / sizeof (ULONG)]);
FIELD (INT, pr_fpvalid);
};
#define FNAMESZ 16
#define PRARGSZ 80
struct EBLHOOK(prpsinfo)
{
FIELD (CHAR, pr_state);
FIELD (CHAR, pr_sname);
FIELD (CHAR, pr_zomb);
FIELD (CHAR, pr_nice);
FIELD (ULONG, pr_flag);
FIELD (UID_T, pr_uid);
FIELD (GID_T, pr_gid);
FIELD (PID_T, pr_pid);
FIELD (PID_T, pr_ppid);
FIELD (PID_T, pr_pgrp);
FIELD (PID_T, pr_sid);
FIELD (CHAR, pr_fname[FNAMESZ]);
FIELD (CHAR, pr_psargs[PRARGSZ]);
};
#undef FIELD
#define FIELD(igroup, itype, item, fmt, ...) \
{ \
.name = #item, \
.group = #igroup, \
.offset = offsetof (struct EBLHOOK(prstatus), pr_##item), \
.type = TYPE_##itype, \
.format = fmt, \
__VA_ARGS__ \
}
static const Ebl_Core_Item prstatus_items[] =
{
FIELD (signal, INT, info.si_signo, 'd'),
FIELD (signal, INT, info.si_code, 'd'),
FIELD (signal, INT, info.si_errno, 'd'),
FIELD (signal, SHORT, cursig, 'd'),
FIELD (signal, ULONG, sigpend, 'B'),
FIELD (signal, ULONG, sighold, 'B'),
FIELD (identity, PID_T, pid, 'd', .thread_identifier = true),
FIELD (identity, PID_T, ppid, 'd'),
FIELD (identity, PID_T, pgrp, 'd'),
FIELD (identity, PID_T, sid, 'd'),
TIMEVAL_FIELD (utime),
TIMEVAL_FIELD (stime),
TIMEVAL_FIELD (cutime),
TIMEVAL_FIELD (cstime),
#ifdef PRSTATUS_REGSET_ITEMS
PRSTATUS_REGSET_ITEMS,
#endif
FIELD (register, INT, fpvalid, 'd'),
};
#undef FIELD
#define FIELD(igroup, itype, item, fmt, ...) \
{ \
.name = #item, \
.group = #igroup, \
.offset = offsetof (struct EBLHOOK(prpsinfo), pr_##item), \
.type = TYPE_##itype, \
.format = fmt, \
__VA_ARGS__ \
}
static const Ebl_Core_Item prpsinfo_items[] =
{
FIELD (state, CHAR, state, 'd'),
FIELD (state, CHAR, sname, 'c'),
FIELD (state, CHAR, zomb, 'd'),
FIELD (state, CHAR, nice, 'd'),
FIELD (state, ULONG, flag, 'x'),
FIELD (identity, UID_T, uid, 'd'),
FIELD (identity, GID_T, gid, 'd'),
FIELD (identity, PID_T, pid, 'd'),
FIELD (identity, PID_T, ppid, 'd'),
FIELD (identity, PID_T, pgrp, 'd'),
FIELD (identity, PID_T, sid, 'd'),
FIELD (command, CHAR, fname, 's', .count = FNAMESZ),
FIELD (command, CHAR, psargs, 's', .count = PRARGSZ),
};
static const Ebl_Core_Item vmcoreinfo_items[] =
{
{
.type = ELF_T_BYTE, .format = '\n'
}
};
#undef FIELD
int
EBLHOOK(core_note) (nhdr, name, regs_offset, nregloc, reglocs, nitems, items)
const GElf_Nhdr *nhdr;
const char *name;
GElf_Word *regs_offset;
size_t *nregloc;
const Ebl_Register_Location **reglocs;
size_t *nitems;
const Ebl_Core_Item **items;
{
switch (nhdr->n_namesz)
{
case sizeof "CORE" - 1: /* Buggy old Linux kernels. */
if (memcmp (name, "CORE", nhdr->n_namesz) == 0)
break;
return 0;
case sizeof "CORE":
if (memcmp (name, "CORE", nhdr->n_namesz) == 0)
break;
/* Buggy old Linux kernels didn't terminate "LINUX".
Fall through. */
case sizeof "LINUX":
if (memcmp (name, "LINUX", nhdr->n_namesz) == 0)
break;
return 0;
case sizeof "VMCOREINFO":
if (nhdr->n_type != 0
|| memcmp (name, "VMCOREINFO", sizeof "VMCOREINFO") != 0)
return 0;
*regs_offset = 0;
*nregloc = 0;
*nitems = 1;
*items = vmcoreinfo_items;
return 1;
default:
return 0;
}
switch (nhdr->n_type)
{
case NT_PRSTATUS:
if (nhdr->n_descsz != sizeof (struct EBLHOOK(prstatus)))
return 0;
*regs_offset = offsetof (struct EBLHOOK(prstatus), pr_reg);
*nregloc = sizeof prstatus_regs / sizeof prstatus_regs[0];
*reglocs = prstatus_regs;
*nitems = sizeof prstatus_items / sizeof prstatus_items[0];
*items = prstatus_items;
return 1;
case NT_PRPSINFO:
if (nhdr->n_descsz != sizeof (struct EBLHOOK(prpsinfo)))
return 0;
*regs_offset = 0;
*nregloc = 0;
*reglocs = NULL;
*nitems = sizeof prpsinfo_items / sizeof prpsinfo_items[0];
*items = prpsinfo_items;
return 1;
#define EXTRA_REGSET(type, size, table) \
case type: \
if (nhdr->n_descsz != size) \
return 0; \
*regs_offset = 0; \
*nregloc = sizeof table / sizeof table[0]; \
*reglocs = table; \
*nitems = 0; \
*items = NULL; \
return 1;
#ifdef FPREGSET_SIZE
EXTRA_REGSET (NT_FPREGSET, FPREGSET_SIZE, fpregset_regs)
#endif
#ifdef EXTRA_NOTES
EXTRA_NOTES
#endif
}
return 0;
}
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