Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/funcscopes.c b/tests/funcscopes.c
new file mode 100644
index 0000000..9c90185
--- /dev/null
+++ b/tests/funcscopes.c
@@ -0,0 +1,195 @@
+/* Test program for dwarf_getscopes.
+ Copyright (C) 2005, 2014 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/>. */
+
+#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 - 1);
+ paddr (": ", lowpc, loline);
+ if (highpc != lowpc)
+ paddr (" .. ", highpc - 1, hiline == loline ? NULL : hiline);
+ }
+ puts ("");
+
+ print_vars (indent + INDENT, die);
+ }
+ free (scopes);
+ }
+
+ 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;
+}