2007-07-03 Markus Deuling <deuling@de.ibm.com>

	* cp-namespace.c (lookup_symbol_file): Add block to
	lookup_symbol_global call.
	* Makefile.in (solist_h): Add dependency on symtab header.
	(symtab.o): Add dependency on solist header.
	* solib.c (solib_global_lookup): New function.
	* solib-svr4.c (scan_dyntag): Likewise.
	(elf_locate_base): Call helper routine scan_dyntag.
	(elf_lookup_lib_symbol): New function.
	(_initialize_svr4_solib): Add elf_lookup_lib_symbol to svr4_so_ops.
	* solist.h (symtab.h): New include.
	(struct target_so_ops): New member lookup_lib_global_symbol.
	(solib_global_lookup): New prototype.
	* symtab.c: New include solist.h.
	(lookup_objfile_from_block): New function.
	(lookup_global_symbol_from_objfile): New function.
	(basic_lookup_symbol_nonlocal): Add block to lookup_symbol_global call.
	(lookup_symbol_global): Call library-specific lookup procedure.
	* symtab.h (lookup_global_symbol_from_objfile): New prototype.

	* NEWS: Document framework.

testsuite/

	* gdb.base/solib-symbol.exp: New file (testcase multiple symbol lookup).
	* gdb.base/solib-symbol-lib.c: Likewise.
	* gdb.base/solib-symbol-main.c: Likewise.

1 files changed, 17 insertions, 1 deletions

diff --git a/gdb/solist.h b/gdb/solist.h
index c883686..38c292e 100644
--- a/gdb/solist.h
+++ b/gdb/solist.h
@@ -23,6 +23,8 @@
 #define SOLIST_H
 
 #define SO_NAME_MAX_PATH_SIZE 512	/* FIXME: Should be dynamic */
+/* For domain_enum domain.  */
+#include "symtab.h"
 
 /* Forward declaration for target specific link map information.  This
    struct is opaque to all but the target specific file.  */
@@ -107,7 +109,14 @@ struct target_so_ops
        Convenience function for remote debuggers finding host libs.  */
     int (*find_and_open_solib) (char *soname,
         unsigned o_flags, char **temp_pathname);
-    
+
+    /* Hook for looking up global symbols in a library-specific way.  */
+    struct symbol * (*lookup_lib_global_symbol) (const struct objfile *objfile,
+						 const char *name,
+						 const char *linkage_name,
+						 const domain_enum domain,
+						 struct symtab **symtab);
+
   };
 
 /* Free the memory associated with a (so_list *).  */
@@ -129,4 +138,11 @@ extern struct target_so_ops *current_target_so_ops;
 #define TARGET_SO_IN_DYNSYM_RESOLVE_CODE \
   (current_target_so_ops->in_dynsym_resolve_code)
 
+/* Handler for library-specific global symbol lookup in solib.c.  */
+struct symbol *solib_global_lookup (const struct objfile *objfile,
+				    const char *name,
+				    const char *linkage_name,
+				    const domain_enum domain,
+				    struct symtab **symtab);
+
 #endif