gdb: introduce objfile text_section_offset and data_section_offset methods

The pattern

  objfile->section_offsets[SECT_OFF_TEXT (objfile)]

... appears very often, to get the offset of the text section of an
objfile.  I thought it would be more readable to write it as:

  objfile->text_section_offset ()

... so I added this method and used it where possible.  I also added
data_section_offset, although it is not used as much.

gdb/ChangeLog:

	* objfiles.h (ALL_OBJFILE_OSECTIONS): Move up.
	(SECT_OFF_DATA): Likewise.
	(SECT_OFF_RODATA): Likewise.
	(SECT_OFF_TEXT): Likewise.
	(SECT_OFF_BSS): Likewise.
	(struct objfile) <text_section_offset, data_section_offset>: New
	methods.
	* amd64-windows-tdep.c (amd64_windows_find_unwind_info): Use
	objfile::text_section_offset.
	* coff-pe-read.c (add_pe_forwarded_sym): Likewise.
	* coffread.c (coff_symtab_read): Likewise.
	(enter_linenos): Likewise.
	(process_coff_symbol): Likewise.
	* ctfread.c (get_objfile_text_range): Likewise.
	* dtrace-probe.c (dtrace_probe::get_relocated_address):
	Use objfile::data_section_offset.
	* dwarf2-frame.c (execute_cfa_program): Use
	objfile::text_section_offset.
	(dwarf2_frame_find_fde): Likewise.
	* dwarf2read.c (create_addrmap_from_index): Likewise.
	(create_addrmap_from_aranges): Likewise.
	(dw2_find_pc_sect_compunit_symtab): Likewise.
	(process_psymtab_comp_unit_reader): Likewise.
	(add_partial_symbol): Likewise.
	(add_partial_subprogram): Likewise.
	(process_full_comp_unit): Likewise.
	(read_file_scope): Likewise.
	(read_func_scope): Likewise.
	(read_lexical_block_scope): Likewise.
	(read_call_site_scope): Likewise.
	(dwarf2_rnglists_process): Likewise.
	(dwarf2_ranges_process): Likewise.
	(dwarf2_ranges_read): Likewise.
	(dwarf_decode_lines_1): Likewise.
	(new_symbol): Likewise.
	(dwarf2_fetch_die_loc_sect_off): Likewise.
	(dwarf2_per_cu_text_offset): Likewise.
	* hppa-bsd-tdep.c (hppabsd_find_global_pointer): Likewise.
	* hppa-tdep.c (read_unwind_info): Likewise.
	* ia64-tdep.c (ia64_find_unwind_table): Likewise.
	* psympriv.h (struct partial_symtab): Likewise.
	* psymtab.c (find_pc_sect_psymtab): Likewise.
	* solib-svr4.c (enable_break): Likewise.
	* stap-probe.c (relocate_address): Use
	objfile::data_section_offset.
	* xcoffread.c (enter_line_range): Use
	objfile::text_section_offset.
	(read_xcoff_symtab): Likewise.

1 files changed, 6 insertions, 6 deletions

diff --git a/gdb/xcoffread.c b/gdb/xcoffread.c
index aae2e37..66ace43 100644
--- a/gdb/xcoffread.c
+++ b/gdb/xcoffread.c
@@ -865,7 +865,7 @@ enter_line_range (struct subfile *subfile, unsigned beginoffset,
       addr = (int_lnno.l_lnno
 	      ? int_lnno.l_addr.l_paddr
 	      : read_symbol_nvalue (int_lnno.l_addr.l_symndx));
-      addr += objfile->section_offsets[SECT_OFF_TEXT (objfile)];
+      addr += objfile->text_section_offset ();
 
       if (addr < startaddr || (endaddr && addr >= endaddr))
 	return;
@@ -1233,7 +1233,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 			}
 
 		      file_start_addr =
-			cs->c_value + objfile->section_offsets[SECT_OFF_TEXT (objfile)];
+			cs->c_value + objfile->text_section_offset ();
 		      file_end_addr = file_start_addr + CSECT_LEN (&main_aux);
 
 		      if (cs->c_name && (cs->c_name[0] == '.' || cs->c_name[0] == '@'))
@@ -1355,7 +1355,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 	case C_FCN:
 	  if (strcmp (cs->c_name, ".bf") == 0)
 	    {
-	      CORE_ADDR off = objfile->section_offsets[SECT_OFF_TEXT (objfile)];
+	      CORE_ADDR off = objfile->text_section_offset ();
 
 	      bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
 				    0, cs->c_naux, &main_aux);
@@ -1399,7 +1399,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 			    NULL, cstk.start_addr,
 			    (fcn_cs_saved.c_value
 			     + fcn_aux_saved.x_sym.x_misc.x_fsize
-			     + objfile->section_offsets[SECT_OFF_TEXT (objfile)]));
+			     + objfile->text_section_offset ()));
 	      within_function = 0;
 	    }
 	  break;
@@ -1466,7 +1466,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 	      depth++;
 	      newobj = push_context (depth,
 				  (cs->c_value
-				   + objfile->section_offsets[SECT_OFF_TEXT (objfile)]));
+				   + objfile->text_section_offset ()));
 	    }
 	  else if (strcmp (cs->c_name, ".eb") == 0)
 	    {
@@ -1488,7 +1488,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 				cstk.old_blocks, NULL,
 				cstk.start_addr,
 				(cs->c_value
-				 + objfile->section_offsets[SECT_OFF_TEXT (objfile)]));
+				 + objfile->text_section_offset ()));
 		}
 	      *get_local_symbols () = cstk.locals;
 	    }