/* Test dwarf_cu_info properties.
Copyright (C) 2018 Red Hat, Inc.
This file is part of elfutils.
This file 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; either version 3 of the License, or
(at your option) any later version.
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 this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#include ELFUTILS_HEADER(dw)
#include <stdio.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
/* Yeah, lazy, 16K CUs should be enough for everybody... */
#define MAX_UNITS 16384
struct info
{
int dietag;
int subtag;
Dwarf_Half version;
uint8_t unit_type;
uint64_t id;
uint8_t addr_size;
uint8_t off_size;
};
static struct info unit_info[MAX_UNITS];
int
main (int argc, char *argv[])
{
for (int i = 1; i < argc; i++)
{
printf ("file: %s\n", argv[i]);
int fd = open (argv[i], O_RDONLY);
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[i], dwarf_errmsg (-1));
return -1;
}
Dwarf_CU *cu = NULL;
Dwarf_Half version;
Dwarf_Die cudie, subdie;
uint8_t unit_type;
size_t u, units;
u = units = 0;
printf ("Iterate getting all info, compare with dwarf_cu_info.\n");
while (dwarf_get_units (dbg, cu, &cu, &version,
&unit_type, &cudie, &subdie) == 0)
{
int dietag = dwarf_tag (&cudie);
int subtag = dwarf_tag (&subdie);
unit_info[u].dietag = dietag;
unit_info[u].subtag = subtag;
unit_info[u].version = version;
unit_info[u].unit_type = unit_type;
printf ("%zu cu dietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
uint64_t unit_id;
uint8_t addr_size, off_size;
if (dwarf_cu_info (cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid dwarf_cu_info: %s\n", dwarf_errmsg (-1));
return -1;
}
dietag = dwarf_tag (&cudie);
subtag = dwarf_tag (&subdie);
if (unit_info[u].dietag != dietag)
{
printf("Unequal dietags\n");
return -1;
}
if (unit_info[u].subtag != subtag)
{
printf("Unequal subtags\n");
return -1;
}
if (unit_info[u].version != version)
{
printf("Unequal versions\n");
return -1;
}
if (unit_info[u].unit_type != unit_type)
{
printf("Unequal unit_types\n");
return -1;
}
unit_info[u].id = unit_id;
unit_info[u].addr_size = addr_size;
unit_info[u].off_size = off_size;
if (unit_type == DW_UT_skeleton)
{
if (dwarf_cu_info (subdie.cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid subdie dwarf_cu_info: %s\n",
dwarf_errmsg (-1));
return -1;
}
dietag = dwarf_tag (&cudie);
subtag = dwarf_tag (&subdie);
printf ("%zu subdietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
/* subdie is now cudie. */
if (unit_info[u].subtag != dietag)
{
printf ("Inconsistent subdie tag\n");
return -1;
}
if (unit_info[u].id != unit_id)
{
printf ("Unequal subdie ids\n");
return -1;
}
if (unit_info[u].addr_size != addr_size)
{
printf ("Unequal subdie addr_size\n");
return -1;
}
if (unit_info[u].off_size != off_size)
{
printf ("Unequal subdie off_size\n");
return -1;
}
}
if (u >= MAX_UNITS)
{
printf ("Oops, more than 16K units...\n");
return -1;
}
u = ++units;
}
dwarf_end (dbg);
close (fd);
/* And again... */
printf ("rechecking: %s\n", argv[i]);
fd = open (argv[i], O_RDONLY);
dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[i], dwarf_errmsg (-1));
return -1;
}
cu = NULL;
u = 0;
printf ("Iterate no info, compare recorded info with dwarf_cu_info.\n");
while (dwarf_get_units (dbg, cu, &cu, NULL, NULL, NULL, NULL) == 0)
{
if (u > units)
{
printf ("Got too many units???\n");
return -1;
}
uint64_t unit_id;
uint8_t addr_size, off_size;
if (dwarf_cu_info (cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid dwarf_cu_info: %s\n", dwarf_errmsg (-1));
return -1;
}
int dietag = dwarf_tag (&cudie);
int subtag = dwarf_tag (&subdie);
printf ("%zu re dietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
if (unit_info[u].dietag != dietag)
{
printf("Unequal dietags %x != %x\n", unit_info[u].dietag, dietag);
return -1;
}
if (unit_info[u].subtag != subtag)
{
printf("Unequal subtags\n");
return -1;
}
if (unit_info[u].version != version)
{
printf("Unequal versions\n");
return -1;
}
if (unit_info[u].unit_type != unit_type)
{
printf("Unequal unit_types\n");
return -1;
}
if (unit_info[u].id != unit_id)
{
printf ("Unequal subdie ids\n");
return -1;
}
if (unit_info[u].addr_size != addr_size)
{
printf ("Unequal subdie addr_size\n");
return -1;
}
if (unit_info[u].off_size != off_size)
{
printf ("Unequal subdie off_size\n");
return -1;
}
if (unit_type == DW_UT_skeleton)
{
if (dwarf_cu_info (subdie.cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid subdie dwarf_cu_info: %s\n",
dwarf_errmsg (-1));
return -1;
}
dietag = dwarf_tag (&cudie);
subtag = dwarf_tag (&subdie);
printf ("%zu subdietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
/* subdie is now cudie. */
subtag = dwarf_tag (&cudie);
if (unit_info[u].subtag != subtag)
{
printf ("Inconsistent subdie tag\n");
return -1;
}
if (unit_info[u].id != unit_id)
{
printf ("Unequal subdie ids\n");
return -1;
}
if (unit_info[u].addr_size != addr_size)
{
printf ("Unequal subdie addr_size\n");
return -1;
}
if (unit_info[u].off_size != off_size)
{
printf ("Unequal subdie off_size\n");
return -1;
}
}
if (u >= MAX_UNITS)
{
printf ("Oops, more than 16K units...\n");
return -1;
}
u++;
}
if (u != units)
{
printf ("Got not enough units???\n");
return -1;
}
dwarf_end (dbg);
close (fd);
printf ("\n");
}
return 0;
}