From 6119d2522e8a598e50cb2ed05bf523e0ecedad3f Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Fri, 21 Sep 2007 07:58:03 +0000
Subject: * syms.c (_bfd_stab_section_find_nearest_line): Look at the  
 specific SOM sections for stabs if the regular ones are not found. * som.h
 (struct somdata): Add a line_info field, to be used by som_find_nearest_line.
 * som.c (som_find_nearest_line): Implement using the bfd stabs function
 above.

---
 bfd/ChangeLog | 10 ++++++++++
 bfd/som.c     | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++--------
 bfd/som.h     |  1 +
 bfd/syms.c    | 15 +++++++++++----
 4 files changed, 72 insertions(+), 12 deletions(-)

(limited to 'bfd')

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 38eef54..22461e9 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+2007-09-21  Olivier Hainque  <hainque@adacore.com>
+	    Tristan Gingold  <gingold@adacore.com>
+	
+	* syms.c (_bfd_stab_section_find_nearest_line): Look at the 
+        specific SOM sections for stabs if the regular ones are not found.
+	* som.h (struct somdata): Add a line_info field, to be used by
+        som_find_nearest_line.
+	* som.c (som_find_nearest_line): Implement using the bfd stabs
+	function above.
+
 2007-09-19  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Make sure .got
diff --git a/bfd/som.c b/bfd/som.c
index e267658..f36e3bc 100644
--- a/bfd/som.c
+++ b/bfd/som.c
@@ -5331,15 +5331,57 @@ som_set_arch_mach (bfd *abfd,
 }
 
 static bfd_boolean
-som_find_nearest_line (bfd *abfd ATTRIBUTE_UNUSED,
-		       asection *section ATTRIBUTE_UNUSED,
-		       asymbol **symbols ATTRIBUTE_UNUSED,
-		       bfd_vma offset ATTRIBUTE_UNUSED,
-		       const char **filename_ptr ATTRIBUTE_UNUSED,
-		       const char **functionname_ptr ATTRIBUTE_UNUSED,
-		       unsigned int *line_ptr ATTRIBUTE_UNUSED)
+som_find_nearest_line (bfd *abfd,
+		       asection *section,
+		       asymbol **symbols,
+		       bfd_vma offset,
+		       const char **filename_ptr,
+		       const char **functionname_ptr,
+		       unsigned int *line_ptr)
 {
-  return FALSE;
+  bfd_boolean found;
+  asymbol *func;
+  bfd_vma low_func;
+  asymbol **p;
+
+  if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
+                                             & found, filename_ptr,
+                                             functionname_ptr, line_ptr,
+                                             & somdata (abfd).line_info))
+    return FALSE;
+
+  if (found)
+    return TRUE;
+
+  if (symbols == NULL)
+    return FALSE;
+
+  /* Fallback: find function name from symbols table.  */
+  func = NULL;
+  low_func = 0;
+
+  for (p = symbols; *p != NULL; p++)
+    { 
+      som_symbol_type *q = (som_symbol_type *) *p;
+  
+      if (q->som_type == SYMBOL_TYPE_ENTRY
+	  && q->symbol.section == section
+	  && q->symbol.value >= low_func
+	  && q->symbol.value <= offset)
+	{
+	  func = (asymbol *) q;
+	  low_func = q->symbol.value;
+	}
+    }
+
+  if (func == NULL)
+    return FALSE;
+
+  *filename_ptr = NULL;
+  *functionname_ptr = bfd_asymbol_name (func);
+  *line_ptr = 0;
+
+  return TRUE;
 }
 
 static int
diff --git a/bfd/som.h b/bfd/som.h
index 708f0ae..59b4c1991 100644
--- a/bfd/som.h
+++ b/bfd/som.h
@@ -136,6 +136,7 @@ struct somdata
   file_ptr str_filepos;
   file_ptr reloc_filepos;
   unsigned stringtab_size;
+  void * line_info;
 };
 
 struct som_data_struct
diff --git a/bfd/syms.c b/bfd/syms.c
index 9d42568..8831b92 100644
--- a/bfd/syms.c
+++ b/bfd/syms.c
@@ -989,10 +989,17 @@ _bfd_stab_section_find_nearest_line (bfd *abfd,
 
       if (info->stabsec == NULL || info->strsec == NULL)
 	{
-	  /* No stabs debugging information.  Set *pinfo so that we
-             can return quickly in the info != NULL case above.  */
-	  *pinfo = info;
-	  return TRUE;
+	  /* Try SOM section names.  */
+	  info->stabsec = bfd_get_section_by_name (abfd, "$GDB_SYMBOLS$");
+	  info->strsec  = bfd_get_section_by_name (abfd, "$GDB_STRINGS$");
+  
+	  if (info->stabsec == NULL || info->strsec == NULL)
+	    {
+	      /* No stabs debugging information.  Set *pinfo so that we
+		 can return quickly in the info != NULL case above.  */
+	      *pinfo = info;
+	      return TRUE;
+	    }
 	}
 
       stabsize = (info->stabsec->rawsize
-- 
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