* dwarf2-frame.c (struct comp_unit): Add tbase member to store

	base for DW_EH_PE_textrel encodings.
	(read_encoded_value): Add a DW_EH_PE_textrel case.
	(dwarf2_build_frame_info): Set unit.tbase to beginning of text
	section.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 5afdddc..2c50236 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2003-10-03  Corinna Vinschen  <vinschen@redhat.com>
+
+       * dwarf2-frame.c (struct comp_unit): Add tbase member to store
+       base for DW_EH_PE_textrel encodings.
+       (read_encoded_value): Add a DW_EH_PE_textrel case.
+       (dwarf2_build_frame_info): Set unit.tbase to beginning of text
+       section.
+
 2003-10-03  Mark Kettenis  <kettenis@gnu.org>
 
        * dwarf2-frame.c (dwarf2_build_frame_info): Fix comment.

diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c
index 2f5502e..b46a382 100644 (file)
--- a/gdb/dwarf2-frame.c
+++ b/gdb/dwarf2-frame.c
@@ -885,6 +885,9 @@ struct comp_unit
 
   /* Base for DW_EH_PE_datarel encodings.  */
   bfd_vma dbase;
+
+  /* Base for DW_EH_PE_textrel encodings.  */
+  bfd_vma tbase;
 };
 
 const struct objfile_data *dwarf2_frame_data;
@@ -1063,6 +1066,9 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
     case DW_EH_PE_datarel:
       base = unit->dbase;
       break;
+    case DW_EH_PE_textrel:
+      base = unit->tbase;
+      break;
     case DW_EH_PE_aligned:
       base = 0;
       offset = buf - unit->dwarf_frame_buffer;
@@ -1523,12 +1529,13 @@ dwarf2_build_frame_info (struct objfile *objfile)
   unit.objfile = objfile;
   unit.addr_size = objfile->obfd->arch_info->bits_per_address / 8;
   unit.dbase = 0;
+  unit.tbase = 0;
 
   /* First add the information from the .eh_frame section.  That way,
      the FDEs from that section are searched last.  */
   if (dwarf_eh_frame_offset)
     {
-      asection *got;
+      asection *got, *txt;
 
       unit.cie = NULL;
       unit.dwarf_frame_buffer = dwarf2_read_section (objfile,
@@ -1547,6 +1554,11 @@ dwarf2_build_frame_info (struct objfile *objfile)
       if (got)
        unit.dbase = got->vma;
 
+      /* GCC emits the DW_EH_PE_textrel encoding type on sh and ia64 so far.  */
+      txt = bfd_get_section_by_name (unit.abfd, ".text");
+      if (txt)
+       unit.tbase = txt->vma;
+
       frame_ptr = unit.dwarf_frame_buffer;
       while (frame_ptr < unit.dwarf_frame_buffer + unit.dwarf_frame_size)
        frame_ptr = decode_frame_entry (&unit, frame_ptr, 1);