PR symtab/17559

Basically the problem is that "symtab" is ambiguous.
Is it the primary symtab (where we canonically think of
blockvectors as being stored) or is it for a specific file
(where each file's line table is stored) ?

gdb_disassembly wants the symtab that contains the line table
but is instead getting the primary symtab.

gdb/ChangeLog:

	PR symtab/17559
	* symtab.c (find_pc_line_symtab): New function.
	* symtab.h (find_pc_line_symtab): Declare.
	* disasm.c (gdb_disassembly): Call find_pc_line_symtab instead of
	find_pc_symtab.
	* tui/tui-disasm.c (tui_set_disassem_content): Ditto.
	* tui/tui-hooks.c (tui_selected_frame_level_changed_hook): Ditto.
	* tui/tui-source.c (tui_vertical_source_scroll): Ditto.
	* tui/tui-win.c (make_visible_with_new_height): Ditto.
	* tui/tui-winsource.c (tui_horizontal_source_scroll): Ditto.
	(tui_display_main): Call find_pc_line_symtab instead of find_pc_line.

gdb/testsuite/ChangeLog:

	PR symtab/17559
	* gdb.base/line-symtabs.exp: New file.
	* gdb.base/line-symtabs.c: New file.
	* gdb.base/line-symtabs.h: New file.

1 files changed, 13 insertions, 0 deletions

diff --git a/gdb/symtab.c b/gdb/symtab.c
index 4672ac3..d2146bb 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -2431,6 +2431,19 @@ find_pc_line (CORE_ADDR pc, int notcurrent)
     pc = overlay_mapped_address (pc, section);
   return find_pc_sect_line (pc, section, notcurrent);
 }
+
+/* See symtab.h.  */
+
+struct symtab *
+find_pc_line_symtab (CORE_ADDR pc)
+{
+  struct symtab_and_line sal;
+
+  /* This always passes zero for NOTCURRENT to find_pc_line.
+     There are currently no callers that ever pass non-zero.  */
+  sal = find_pc_line (pc, 0);
+  return sal.symtab;
+}
 
 /* Find line number LINE in any symtab whose name is the same as
    SYMTAB.