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Retro68/elfutils/tests/show-die-info.c
Wolfgang Thaller d21be3b4e1 Add elfutils-0.170 
(from https://sourceware.org/elfutils/, GPL/LGPL licensed)
2017-09-21 21:04:42 +02:00

359 lines
12 KiB
C
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/* Copyright (C) 1998-2002, 2004, 2006, 2012, 2015 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 1998.
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/>. */
#include <config.h>
#include <dwarf.h>
#include <inttypes.h>
#include <libelf.h>
#include ELFUTILS_HEADER(dw)
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "../libdw/known-dwarf.h"
static const char *
dwarf_tag_string (unsigned int tag)
{
switch (tag)
{
#define DWARF_ONE_KNOWN_DW_TAG(NAME, CODE) case CODE: return #NAME;
DWARF_ALL_KNOWN_DW_TAG
#undef DWARF_ONE_KNOWN_DW_TAG
default:
return NULL;
}
}
static const char *
dwarf_attr_string (unsigned int attrnum)
{
switch (attrnum)
{
#define DWARF_ONE_KNOWN_DW_AT(NAME, CODE) case CODE: return #NAME;
DWARF_ALL_KNOWN_DW_AT
#undef DWARF_ONE_KNOWN_DW_AT
default:
return NULL;
}
}
void
handle (Dwarf *dbg, Dwarf_Die *die, int n)
{
Dwarf_Die child;
unsigned int tag;
const char *str;
char buf[30];
const char *name;
Dwarf_Off off;
Dwarf_Off cuoff;
size_t cnt;
Dwarf_Addr addr;
int i;
tag = dwarf_tag (die);
if (tag != DW_TAG_invalid)
{
str = dwarf_tag_string (tag);
if (str == NULL)
{
snprintf (buf, sizeof buf, "%#x", tag);
str = buf;
}
}
else
str = "* NO TAG *";
name = dwarf_diename (die);
if (name == 0)
name = "* NO NAME *";
off = dwarf_dieoffset (die);
cuoff = dwarf_cuoffset (die);
printf ("%*sDW_TAG_%s\n", n * 5, "", str);
printf ("%*s Name : %s\n", n * 5, "", name);
printf ("%*s Offset : %lld\n", n * 5, "", (long long int) off);
printf ("%*s CU offset : %lld\n", n * 5, "", (long long int) cuoff);
printf ("%*s Attrs :", n * 5, "");
for (cnt = 0; cnt < 0xffff; ++cnt)
if (dwarf_hasattr (die, cnt))
printf (" %s", dwarf_attr_string (cnt));
puts ("");
if (dwarf_hasattr (die, DW_AT_low_pc) && dwarf_lowpc (die, &addr) == 0)
{
Dwarf_Attribute attr;
Dwarf_Addr addr2;
printf ("%*s low PC : %#llx\n",
n * 5, "", (unsigned long long int) addr);
if (dwarf_attr (die, DW_AT_low_pc, &attr) == NULL
|| dwarf_formaddr (&attr, &addr2) != 0
|| addr != addr2)
puts ("************* DW_AT_low_pc verify failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_addr))
puts ("************* DW_AT_low_pc form failed ************");
else if (dwarf_whatform (&attr) != DW_FORM_addr)
puts ("************* DW_AT_low_pc form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_low_pc)
puts ("************* DW_AT_low_pc attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_high_pc) && dwarf_highpc (die, &addr) == 0)
{
Dwarf_Attribute attr;
Dwarf_Addr addr2;
printf ("%*s high PC : %#llx\n",
n * 5, "", (unsigned long long int) addr);
if (dwarf_attr (die, DW_AT_high_pc, &attr) == NULL
|| dwarf_formaddr (&attr, &addr2) != 0
|| addr != addr2)
puts ("************* DW_AT_high_pc verify failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_addr))
puts ("************* DW_AT_high_pc form failed ************");
else if (dwarf_whatform (&attr) != DW_FORM_addr)
puts ("************* DW_AT_high_pc form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_high_pc)
puts ("************* DW_AT_high_pc attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_byte_size) && (i = dwarf_bytesize (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s byte size : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_byte_size, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_byte_size verify failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_byte_size form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_byte_size form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_byte_size)
puts ("************* DW_AT_byte_size attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_bit_size) && (i = dwarf_bitsize (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s bit size : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_bit_size, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_bit_size test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_bit_size form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_bit_size form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_bit_size)
puts ("************* DW_AT_bit_size attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_bit_offset)
&& (i = dwarf_bitoffset (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s bit offset: %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_bit_offset, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_bit_offset test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_bit_offset form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_bit_offset form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_bit_offset)
puts ("************* DW_AT_bit_offset attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_language) && (i = dwarf_srclang (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s language : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_language, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_language test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_language form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_language form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_language)
puts ("************* DW_AT_language attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_ordering)
&& (i = dwarf_arrayorder (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s ordering : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_ordering, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_ordering test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_ordering failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_ordering form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_ordering)
puts ("************* DW_AT_ordering attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_comp_dir))
{
Dwarf_Attribute attr;
if (dwarf_attr (die, DW_AT_comp_dir, &attr) == NULL
|| (name = dwarf_formstring (&attr)) == NULL)
puts ("************* DW_AT_comp_dir attr failed ************");
else
printf ("%*s directory : %s\n", n * 5, "", name);
}
if (dwarf_hasattr (die, DW_AT_producer))
{
Dwarf_Attribute attr;
if (dwarf_attr (die, DW_AT_producer, &attr) == NULL
|| (name = dwarf_formstring (&attr)) == NULL)
puts ("************* DW_AT_comp_dir attr failed ************");
else
printf ("%*s producer : %s\n", n * 5, "", name);
}
if (dwarf_haschildren (die) != 0 && dwarf_child (die, &child) == 0)
handle (dbg, &child, n + 1);
if (dwarf_siblingof (die, die) == 0)
handle (dbg, die, n);
}
int
main (int argc, char *argv[])
{
int cnt;
for (cnt = 1; cnt < argc; ++cnt)
{
int fd = open (argv[cnt], O_RDONLY);
Dwarf *dbg;
printf ("file: %s\n", basename (argv[cnt]));
dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable\n", argv[cnt]);
close (fd);
continue;
}
Dwarf_Off off = 0;
Dwarf_Off old_off = 0;
size_t hsize;
Dwarf_Off abbrev;
uint8_t addresssize;
uint8_t offsetsize;
while (dwarf_nextcu (dbg, off, &off, &hsize, &abbrev, &addresssize,
&offsetsize) == 0)
{
printf ("New CU: off = %llu, hsize = %zu, ab = %llu, as = %" PRIu8
", os = %" PRIu8 "\n",
(unsigned long long int) old_off, hsize,
(unsigned long long int) abbrev, addresssize,
offsetsize);
Dwarf_Die die;
if (dwarf_offdie (dbg, old_off + hsize, &die) != NULL)
handle (dbg, &die, 1);
old_off = off;
}
dwarf_end (dbg);
close (fd);
}
return 0;
}
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