top level:

[thirdparty/binutils-gdb.git] / binutils / addr2line.c

diff --git a/binutils/addr2line.c b/binutils/addr2line.c
index aae69ca3be56fb4a2e49bc7e51a549c201e3814d..8347cfa13a2a93eb67b70571a4a81c375c284b78 100644 (file)
--- a/binutils/addr2line.c
+++ b/binutils/addr2line.c
@@ -1,5 +1,5 @@
 /* addr2line.c -- convert addresses to line number and function name
-   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007
    Free Software Foundation, Inc.
    Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de>
 
@@ -56,6 +56,7 @@ static struct option long_options[] =
   {"exe", required_argument, NULL, 'e'},
   {"functions", no_argument, NULL, 'f'},
   {"inlines", no_argument, NULL, 'i'},
+  {"section", required_argument, NULL, 'j'},
   {"target", required_argument, NULL, 'b'},
   {"help", no_argument, NULL, 'H'},
   {"version", no_argument, NULL, 'V'},
@@ -65,8 +66,8 @@ static struct option long_options[] =
 static void usage (FILE *, int);
 static void slurp_symtab (bfd *);
 static void find_address_in_section (bfd *, asection *, void *);
-static void translate_addresses (bfd *);
-static void process_file (const char *, const char *);
+static void find_offset_in_section (bfd *, asection *);
+static void translate_addresses (bfd *, asection *);
 \f
 /* Print a usage message to STREAM and exit with STATUS.  */
 
@@ -80,7 +81,8 @@ usage (FILE *stream, int status)
   @<file>                Read options from <file>\n\
   -b --target=<bfdname>  Set the binary file format\n\
   -e --exe=<executable>  Set the input file name (default is a.out)\n\
-  -i --inlines          Unwind inlined functions\n\
+  -i --inlines           Unwind inlined functions\n\
+  -j --section=<name>    Read section-relative offsets instead of addresses\n\
   -s --basenames         Strip directory names\n\
   -f --functions         Show function names\n\
   -C --demangle[=style]  Demangle function names\n\
@@ -89,7 +91,7 @@ usage (FILE *stream, int status)
 \n"));
 
   list_supported_targets (program_name, stream);
-  if (status == 0)
+  if (REPORT_BUGS_TO[0] && status == 0)
     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
   exit (status);
 }
@@ -150,11 +152,32 @@ find_address_in_section (bfd *abfd, asection *section,
                                 &filename, &functionname, &line);
 }
 
+/* Look for an offset in a section.  This is directly called.  */
+
+static void
+find_offset_in_section (bfd *abfd, asection *section)
+{
+  bfd_size_type size;
+
+  if (found)
+    return;
+
+  if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
+    return;
+
+  size = bfd_get_section_size (section);
+  if (pc >= size)
+    return;
+
+  found = bfd_find_nearest_line (abfd, section, syms, pc,
+                                &filename, &functionname, &line);
+}
+
 /* Read hexadecimal addresses from stdin, translate into
    file_name:line_number and optionally function name.  */
 
 static void
-translate_addresses (bfd *abfd)
+translate_addresses (bfd *abfd, asection *section)
 {
   int read_stdin = (naddr == 0);
 
@@ -177,7 +200,10 @@ translate_addresses (bfd *abfd)
        }
 
       found = FALSE;
-      bfd_map_over_sections (abfd, find_address_in_section, NULL);
+      if (section)
+       find_offset_in_section (abfd, section);
+      else
+       bfd_map_over_sections (abfd, find_address_in_section, NULL);
 
       if (! found)
        {
@@ -234,23 +260,25 @@ translate_addresses (bfd *abfd)
     }
 }
 
-/* Process a file.  */
+/* Process a file.  Returns an exit value for main().  */
 
-static void
-process_file (const char *file_name, const char *target)
+static int
+process_file (const char *file_name, const char *section_name,
+             const char *target)
 {
   bfd *abfd;
+  asection *section;
   char **matching;
 
   if (get_file_size (file_name) < 1)
-    return;
+    return 1;
 
   abfd = bfd_openr (file_name, target);
   if (abfd == NULL)
     bfd_fatal (file_name);
 
   if (bfd_check_format (abfd, bfd_archive))
-    fatal (_("%s: can not get addresses from archive"), file_name);
+    fatal (_("%s: cannot get addresses from archive"), file_name);
 
   if (! bfd_check_format_matches (abfd, bfd_object, &matching))
     {
@@ -263,9 +291,18 @@ process_file (const char *file_name, const char *target)
       xexit (1);
     }
 
+  if (section_name != NULL)
+    {
+      section = bfd_get_section_by_name (abfd, section_name);
+      if (section == NULL)
+       fatal (_("%s: cannot find section %s"), file_name, section_name);
+    }
+  else
+    section = NULL;
+
   slurp_symtab (abfd);
 
-  translate_addresses (abfd);
+  translate_addresses (abfd, section);
 
   if (syms != NULL)
     {
@@ -274,14 +311,15 @@ process_file (const char *file_name, const char *target)
     }
 
   bfd_close (abfd);
+
+  return 0;
 }
 \f
-int main (int, char **);
-
 int
 main (int argc, char **argv)
 {
   const char *file_name;
+  const char *section_name;
   char *target;
   int c;
 
@@ -303,8 +341,9 @@ main (int argc, char **argv)
   set_default_bfd_target ();
 
   file_name = NULL;
+  section_name = NULL;
   target = NULL;
-  while ((c = getopt_long (argc, argv, "b:Ce:sfHhiVv", long_options, (int *) 0))
+  while ((c = getopt_long (argc, argv, "b:Ce:sfHhij:Vv", long_options, (int *) 0))
         != EOF)
     {
       switch (c)
@@ -348,6 +387,9 @@ main (int argc, char **argv)
        case 'i':
          unwind_inlines = TRUE;
          break;
+       case 'j':
+         section_name = optarg;
+         break;
        default:
          usage (stderr, 1);
          break;
@@ -360,7 +402,5 @@ main (int argc, char **argv)
   addr = argv + optind;
   naddr = argc - optind;
 
-  process_file (file_name, target);
-
-  return 0;
+  return process_file (file_name, section_name, target);
 }