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

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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.
This commit is contained in:
Corinna Vinschen 2003-10-03 08:08:27 +00:00
parent b079391aac
commit 0fd8504376
2 changed files with 21 additions and 1 deletions
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8
gdb/ChangeLog
View File

@ -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.

14
gdb/dwarf2-frame.c
View File

@ -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);