Add macro structures to GDB's symbol tables. Nobody puts anything

in them yet.
* symtab.h (struct symtab): New member: `macro_table'.
* buildsym.h (pending_macros): New global variable.
* buildsym.c: #include "macrotab.h".
(buildsym_init): Initialize `pending_macros'.
(end_symtab): If we found macro information while reading a CU's
debugging info, do build a symtab structure for it.  Make the
symtab point to the macro information, and clear the
`pending_macros' pointer which held it while we were reading the
debug info.
(really_free_pendings): Free any pending macro table.
* objfiles.h (struct objfile): New member: `macro_cache'.
* objfiles.c (allocate_objfile): Set allocate and free functions
for the macro cache's objstack.
(free_objfile): Empty the macro cache's obstack.
* symfile.c (reread_symbols): Empty the macro cache's obstack, and
set new allocate and free functions for it.
* solib-sunos.c (allocate_rt_common_objfile): Set allocate and
free functions for the macro cache's objstack.  (Why is this
function building its own objfile?)
* symmisc.c (print_objfile_statistics): Print statistics on the
macro bcache.
* Makefile.in: Note that buildsym.o depends on macrotab.h.

1 files changed, 8 insertions, 0 deletions

diff --git a/gdb/objfiles.c b/gdb/objfiles.c
index e2a6f850554..32bda87b91d 100644
--- a/gdb/objfiles.c
+++ b/gdb/objfiles.c
@@ -190,6 +190,8 @@ allocate_objfile (bfd *abfd, int flags)
 	      /* Update pointers to functions to *our* copies */
 	      obstack_chunkfun (&objfile->psymbol_cache.cache, xmmalloc);
 	      obstack_freefun (&objfile->psymbol_cache.cache, xmfree);
+	      obstack_chunkfun (&objfile->macro_cache.cache, xmmalloc);
+	      obstack_freefun (&objfile->macro_cache.cache, xmfree);
 	      obstack_chunkfun (&objfile->psymbol_obstack, xmmalloc);
 	      obstack_freefun (&objfile->psymbol_obstack, xmfree);
 	      obstack_chunkfun (&objfile->symbol_obstack, xmmalloc);
@@ -220,6 +222,9 @@ allocate_objfile (bfd *abfd, int flags)
 	      obstack_specify_allocation_with_arg (&objfile->psymbol_cache.cache,
 						   0, 0, xmmalloc, xmfree,
 						   objfile->md);
+	      obstack_specify_allocation_with_arg (&objfile->macro_cache.cache,
+						   0, 0, xmmalloc, xmfree,
+						   objfile->md);
 	      obstack_specify_allocation_with_arg (&objfile->psymbol_obstack,
 						   0, 0, xmmalloc, xmfree,
 						   objfile->md);
@@ -266,6 +271,8 @@ allocate_objfile (bfd *abfd, int flags)
       objfile->md = NULL;
       obstack_specify_allocation (&objfile->psymbol_cache.cache, 0, 0,
 				  xmalloc, xfree);
+      obstack_specify_allocation (&objfile->macro_cache.cache, 0, 0,
+				  xmalloc, xfree);
       obstack_specify_allocation (&objfile->psymbol_obstack, 0, 0, xmalloc,
 				  xfree);
       obstack_specify_allocation (&objfile->symbol_obstack, 0, 0, xmalloc,
@@ -477,6 +484,7 @@ free_objfile (struct objfile *objfile)
 	xmfree (objfile->md, objfile->static_psymbols.list);
       /* Free the obstacks for non-reusable objfiles */
       free_bcache (&objfile->psymbol_cache);
+      free_bcache (&objfile->macro_cache);
       obstack_free (&objfile->psymbol_obstack, 0);
       obstack_free (&objfile->symbol_obstack, 0);
       obstack_free (&objfile->type_obstack, 0);