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authorJoel Brobecker <brobecker@gnat.com>2012-06-05 13:50:49 +0000
committerJoel Brobecker <brobecker@gnat.com>2012-06-05 13:50:49 +0000
commitc8c5621e862a8a7bdc312066bdc71fd67e91a9e2 (patch)
treef467dd87e66e6cda7c274dfec8e162f875482160 /gdb/gdbarch.h
parent6624a4698fbcd343e56a6505c1e384d8a3f6a39c (diff)
downloadgdb-c8c5621e862a8a7bdc312066bdc71fd67e91a9e2.tar.gz
New "iterate_over_objfiles_in_search_order" gdbarch method.
This patch introduces the "iterate_over_objfiles_in_search_order" gdbarch method, as well as its default implementation, and converts the areas where it will matter to using this gdbarch method. The default method implementation is the only one installed, and the changes should have no functional impact in terms of behavior. This only paves the way for the architectures that will need their own version. gdb/ChangeLog: * gdbarch.sh: Add generation of "iterate_over_objfiles_in_search_order_cb_ftype" typedef in gdbarch.h. Add include of "objfiles.h" in gdbarch.c. (iterate_over_objfiles_in_search_order): New gdbarch method. * gdbarch.h, gdbarch.c: Regenerate. * objfiles.h (default_iterate_over_objfiles_in_search_order): Add declaration. * objfiles.c (default_iterate_over_objfiles_in_search_order): New function. * symtab.c (lookup_symbol_aux_objfile): New function, extracted out of lookup_symbol_aux_symtabs. (lookup_symbol_aux_symtabs): Replace extracted-out code by call to lookup_symbol_aux_objfile. (struct global_sym_lookup_data): New type. (lookup_symbol_global_iterator_cb): New function. (lookup_symbol_global): Search for symbol using gdbarch_iterate_over_objfiles_in_search_order and lookup_symbol_global_iterator_cb. * findvar.c (struct minsym_lookup_data): New type. (minsym_lookup_iterator_cb): New function. (default_read_var_value) [case LOC_UNRESOLVED]: Resolve the symbol's address via gdbarch_iterate_over_objfiles_in_search_order and minsym_lookup_iterator_cb.
Diffstat (limited to 'gdb/gdbarch.h')
-rw-r--r--gdb/gdbarch.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index e4e7abfdfe3..a82e8bbbe29 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -69,6 +69,12 @@ struct stap_parse_info;
GDB, this global should be made target-specific. */
extern struct gdbarch *target_gdbarch;
+/* Callback type for the 'iterate_over_objfiles_in_search_order'
+ gdbarch method. */
+
+typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
+ (struct objfile *objfile, void *cb_data);
+
/* The following are pre-initialized by GDBARCH. */
@@ -1175,6 +1181,24 @@ typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, char *args, enu
extern void gdbarch_info_proc (struct gdbarch *gdbarch, char *args, enum info_proc_what what);
extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
+/* Iterate over all objfiles in the order that makes the most sense
+ for the architecture to make global symbol searches.
+
+ CB is a callback function where OBJFILE is the objfile to be searched,
+ and CB_DATA a pointer to user-defined data (the same data that is passed
+ when calling this gdbarch method). The iteration stops if this function
+ returns nonzero.
+
+ CB_DATA is a pointer to some user-defined data to be passed to
+ the callback.
+
+ If not NULL, CURRENT_OBJFILE corresponds to the objfile being
+ inspected when the symbol search was requested. */
+
+typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype) (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
+extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
+extern void set_gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, gdbarch_iterate_over_objfiles_in_search_order_ftype *iterate_over_objfiles_in_search_order);
+
/* Definition for an unknown syscall, used basically in error-cases. */
#define UNKNOWN_SYSCALL (-1)