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/* Test program for dwarf_getscopes.
Copyright (C) 2005 Red Hat, Inc.
This program is Open Source software; you can redistribute it and/or
modify it under the terms of the Open Software License version 1.0 as
published by the Open Source Initiative.
You should have received a copy of the Open Software License along
with this program; if not, you may obtain a copy of the Open Software
License version 1.0 from http://www.opensource.org/licenses/osl.php or
by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
3001 King Ranch Road, Ukiah, CA 95482. */
#include <config.h>
#include <assert.h>
#include <inttypes.h>
#include ELFUTILS_HEADER(dwfl)
#include <dwarf.h>
#include <argp.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <locale.h>
#include <stdlib.h>
#include <error.h>
#include <string.h>
#include <fnmatch.h>
static void
paddr (const char *prefix, Dwarf_Addr addr, Dwfl_Line *line)
{
const char *src;
int lineno, linecol;
if (line != NULL
&& (src = dwfl_lineinfo (line, &addr, &lineno, &linecol,
NULL, NULL)) != NULL)
{
if (linecol != 0)
printf ("%s%#" PRIx64 " (%s:%d:%d)",
prefix, addr, src, lineno, linecol);
else
printf ("%s%#" PRIx64 " (%s:%d)",
prefix, addr, src, lineno);
}
else
printf ("%s%#" PRIx64, prefix, addr);
}
static void
print_vars (unsigned int indent, Dwarf_Die *die)
{
Dwarf_Die child;
if (dwarf_child (die, &child) == 0)
do
switch (dwarf_tag (&child))
{
case DW_TAG_variable:
case DW_TAG_formal_parameter:
printf ("%*s%-30s[%6" PRIx64 "]\n", indent, "",
dwarf_diename (&child),
(uint64_t) dwarf_dieoffset (&child));
break;
default:
break;
}
while (dwarf_siblingof (&child, &child) == 0);
Dwarf_Attribute attr_mem;
Dwarf_Die origin;
if (dwarf_hasattr (die, DW_AT_abstract_origin)
&& dwarf_formref_die (dwarf_attr (die, DW_AT_abstract_origin, &attr_mem),
&origin) != NULL
&& dwarf_child (&origin, &child) == 0)
do
switch (dwarf_tag (&child))
{
case DW_TAG_variable:
case DW_TAG_formal_parameter:
printf ("%*s%s (abstract)\n", indent, "",
dwarf_diename (&child));
break;
default:
break;
}
while (dwarf_siblingof (&child, &child) == 0);
}
#define INDENT 4
struct args
{
Dwfl *dwfl;
Dwarf_Die *cu;
Dwarf_Addr dwbias;
char **argv;
};
static int
handle_function (Dwarf_Die *funcdie, void *arg)
{
struct args *a = arg;
const char *name = dwarf_diename (funcdie);
char **argv = a->argv;
if (argv[0] != NULL)
{
bool match;
do
match = fnmatch (*argv, name, 0) == 0;
while (!match && *++argv);
if (!match)
return 0;
}
Dwarf_Die *scopes;
int n = dwarf_getscopes_die (funcdie, &scopes);
if (n <= 0)
error (EXIT_FAILURE, 0, "dwarf_getscopes_die: %s", dwarf_errmsg (-1));
else
{
Dwarf_Addr start, end;
const char *fname;
const char *modname = dwfl_module_info (dwfl_cumodule (a->cu), NULL,
&start, &end,
NULL, NULL,
&fname, NULL);
if (modname == NULL)
error (EXIT_FAILURE, 0, "dwfl_module_info: %s", dwarf_errmsg (-1));
if (modname[0] == '\0')
modname = fname;
printf ("%s: %#" PRIx64 " .. %#" PRIx64 "\n", modname, start, end);
unsigned int indent = 0;
while (n-- > 0)
{
Dwarf_Die *const die = &scopes[n];
indent += INDENT;
printf ("%*s%s (%#x)", indent, "",
dwarf_diename (die) ?: "<unnamed>",
dwarf_tag (die));
Dwarf_Addr lowpc, highpc;
if (dwarf_lowpc (die, &lowpc) == 0
&& dwarf_highpc (die, &highpc) == 0)
{
lowpc += a->dwbias;
highpc += a->dwbias;
Dwfl_Line *loline = dwfl_getsrc (a->dwfl, lowpc);
Dwfl_Line *hiline = dwfl_getsrc (a->dwfl, highpc);
paddr (": ", lowpc, loline);
if (highpc != lowpc)
paddr (" .. ", lowpc, hiline == loline ? NULL : hiline);
}
puts ("");
print_vars (indent + INDENT, die);
}
}
return 0;
}
int
main (int argc, char *argv[])
{
int remaining;
/* Set locale. */
(void) setlocale (LC_ALL, "");
struct args a = { .dwfl = NULL, .cu = NULL };
(void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining,
&a.dwfl);
assert (a.dwfl != NULL);
a.argv = &argv[remaining];
int result = 0;
while ((a.cu = dwfl_nextcu (a.dwfl, a.cu, &a.dwbias)) != NULL)
dwarf_getfuncs (a.cu, &handle_function, &a, 0);
dwfl_end (a.dwfl);
return result;
}
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