2005-08-18 Roland McGrath <roland@redhat.com>

	* addrscopes.c: New file.
	* Makefile.am (noinst_PROGRAMS): Add it.
	(addrscopes_LDADD): New variable.

1 files changed, 194 insertions, 0 deletions

diff --git a/tests/addrscopes.c b/tests/addrscopes.c
new file mode 100644
index 00000000..4ef00648
--- /dev/null
+++ b/tests/addrscopes.c
@@ -0,0 +1,194 @@
+/* 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 <libdwfl.h>
+#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>
+
+
+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 const char *
+dwarf_diename_integrate (Dwarf_Die *die)
+{
+  Dwarf_Attribute attr_mem;
+  return dwarf_formstring (dwarf_attr_integrate (die, DW_AT_name, &attr_mem));
+}
+
+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_integrate (&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_integrate (&child));
+	  break;
+	default:
+	  break;
+	}
+    while (dwarf_siblingof (&child, &child) == 0);
+}
+
+
+#define INDENT 4
+
+static void
+handle_address (GElf_Addr pc, Dwfl *dwfl)
+{
+  Dwarf_Addr cubias;
+  Dwarf_Die *cudie = dwfl_addrdie (dwfl, pc, &cubias);
+  if (cudie == NULL)
+    error (EXIT_FAILURE, 0, "dwfl_addrdie: %s", dwfl_errmsg (-1));
+
+  Dwarf_Die *scopes;
+  int n = dwarf_getscopes (cudie, pc - cubias, &scopes);
+  if (n < 0)
+    error (EXIT_FAILURE, 0, "dwarf_getscopes: %s", dwarf_errmsg (-1));
+  else if (n == 0)
+    printf ("%#" PRIx64 ": not in any scope\n", pc);
+  else
+    {
+      printf ("%#" PRIx64 ":\n", pc);
+      unsigned int indent = 0;
+      while (n-- > 0)
+	{
+	  Dwarf_Die *const die = &scopes[n];
+
+	  indent += INDENT;
+	  printf ("%*s%s (%#x)", indent, "",
+		  dwarf_diename_integrate (die) ?: "<unnamed>",
+		  dwarf_tag (die));
+
+	  Dwarf_Addr lowpc, highpc;
+	  if (dwarf_lowpc (die, &lowpc) == 0
+	      && dwarf_highpc (die, &highpc) == 0)
+	    {
+	      Dwfl_Line *loline = dwfl_getsrc (dwfl, lowpc);
+	      Dwfl_Line *hiline = dwfl_getsrc (dwfl, highpc);
+	      paddr (": ", lowpc, loline);
+	      if (highpc != lowpc)
+		paddr (" .. ", lowpc, hiline == loline ? NULL : hiline);
+	    }
+	  puts ("");
+
+	  print_vars (indent + INDENT, die);
+	}
+    }
+}
+
+int
+main (int argc, char *argv[])
+{
+  int remaining;
+
+  /* Set locale.  */
+  (void) setlocale (LC_ALL, "");
+
+  Dwfl *dwfl = NULL;
+  (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining, &dwfl);
+  assert (dwfl != NULL);
+
+  int result = 0;
+
+  /* Now handle the addresses.  In case none are given on the command
+     line, read from stdin.  */
+  if (remaining == argc)
+    {
+      /* We use no threads here which can interfere with handling a stream.  */
+      (void) __fsetlocking (stdin, FSETLOCKING_BYCALLER);
+
+      char *buf = NULL;
+      size_t len = 0;
+      while (!feof_unlocked (stdin))
+	{
+	  if (getline (&buf, &len, stdin) < 0)
+	    break;
+
+	  char *endp;
+	  uintmax_t addr = strtoumax (buf, &endp, 0);
+	  if (endp != buf)
+	    handle_address (addr, dwfl);
+	  else
+	    result = 1;
+	}
+
+      free (buf);
+    }
+  else
+    {
+      do
+	{
+	  char *endp;
+	  uintmax_t addr = strtoumax (argv[remaining], &endp, 0);
+	  if (endp != argv[remaining])
+	    handle_address (addr, dwfl);
+	  else
+	    result = 1;
+	}
+      while (++remaining < argc);
+    }
+
+  return result;
+}