Allow DWARF expression to push the initial address

[thirdparty/binutils-gdb.git] / gdb / dwarf2 / loc.h

diff --git a/gdb/dwarf2/loc.h b/gdb/dwarf2/loc.h
index a49a9903b11030d4e8a6f4cab0ad625edf8c61fe..6ff9b79dc0332437d17827148c6b7492d9dfe4af 100644 (file)
--- a/gdb/dwarf2/loc.h
+++ b/gdb/dwarf2/loc.h
@@ -35,56 +35,12 @@ struct axs_value;
 /* `set debug entry-values' setting.  */
 extern unsigned int entry_values_debug;
 
-/* Return the OBJFILE associated with the compilation unit CU.  If CU
-   came from a separate debuginfo file, then the master objfile is
-   returned.  */
-struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu);
-
-/* Return the address size given in the compilation unit header for CU.  */
-int dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu);
-
-/* Return the DW_FORM_ref_addr size given in the compilation unit header for
-   CU.  */
-int dwarf2_per_cu_ref_addr_size (struct dwarf2_per_cu_data *cu);
-
-/* Return the offset size given in the compilation unit header for CU.  */
-int dwarf2_per_cu_offset_size (struct dwarf2_per_cu_data *cu);
-
-/* Return the text offset of the CU.  The returned offset comes from
-   this CU's objfile.  If this objfile came from a separate debuginfo
-   file, then the offset may be different from the corresponding
-   offset in the parent objfile.  */
-CORE_ADDR dwarf2_per_cu_text_offset (struct dwarf2_per_cu_data *cu);
-
-short dwarf2_version (struct dwarf2_per_cu_data *per_cu);
-
 /* Find a particular location expression from a location list.  */
 const gdb_byte *dwarf2_find_location_expression
   (struct dwarf2_loclist_baton *baton,
    size_t *locexpr_length,
    CORE_ADDR pc);
 
-struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_sect_off
-  (sect_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
-   CORE_ADDR (*get_frame_pc) (void *baton),
-   void *baton, bool resolve_abstract_p = false);
-
-struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_cu_off
-  (cu_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu,
-   CORE_ADDR (*get_frame_pc) (void *baton),
-   void *baton);
-
-extern const gdb_byte *dwarf2_fetch_constant_bytes (sect_offset,
-                                                   struct dwarf2_per_cu_data *,
-                                                   struct obstack *,
-                                                   LONGEST *);
-
-struct type *dwarf2_fetch_die_type_sect_off (sect_offset,
-                                            struct dwarf2_per_cu_data *);
-
-struct type *dwarf2_get_die_type (cu_offset die_offset,
-                                 struct dwarf2_per_cu_data *per_cu);
-
 /* Find the frame base information for FRAMEFUNC at PC.  START is an
    out parameter which is set to point to the DWARF expression to
    compute.  LENGTH is an out parameter which is set to the length of
@@ -136,12 +92,16 @@ struct property_addr_info
    be NULL.
 
    Returns true if PROP could be converted and the static value is passed
-   back into VALUE, otherwise returns false.  */
+   back into VALUE, otherwise returns false.
+
+   If PUSH_INITIAL_VALUE is true, then the top value of ADDR_STACK
+   will be pushed before evaluating a location expression.  */
 
 bool dwarf2_evaluate_property (const struct dynamic_prop *prop,
                               struct frame_info *frame,
-                              struct property_addr_info *addr_stack,
-                              CORE_ADDR *value);
+                              const struct property_addr_info *addr_stack,
+                              CORE_ADDR *value,
+                              bool push_initial_value = false);
 
 /* A helper for the compiler interface that compiles a single dynamic
    property to C code.
@@ -164,9 +124,6 @@ void dwarf2_compile_property_to_c (string_file *stream,
                                   CORE_ADDR address,
                                   struct symbol *sym);
 
-CORE_ADDR dwarf2_read_addr_index (struct dwarf2_per_cu_data *per_cu,
-                                 unsigned int addr_index);
-
 /* The symbol location baton types used by the DWARF-2 reader (i.e.
    SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol).  "struct
    dwarf2_locexpr_baton" is for a symbol with a single location
@@ -265,26 +222,6 @@ extern const struct symbol_computed_ops dwarf2_loclist_funcs;
 extern const struct symbol_block_ops dwarf2_block_frame_base_locexpr_funcs;
 extern const struct symbol_block_ops dwarf2_block_frame_base_loclist_funcs;
 
-/* Compile a DWARF location expression to an agent expression.
-   
-   EXPR is the agent expression we are building.
-   LOC is the agent value we modify.
-   ARCH is the architecture.
-   ADDR_SIZE is the size of addresses, in bytes.
-   OP_PTR is the start of the location expression.
-   OP_END is one past the last byte of the location expression.
-   
-   This will throw an exception for various kinds of errors -- for
-   example, if the expression cannot be compiled, or if the expression
-   is invalid.  */
-
-extern void dwarf2_compile_expr_to_ax (struct agent_expr *expr,
-                                      struct axs_value *loc,
-                                      unsigned int addr_size,
-                                      const gdb_byte *op_ptr,
-                                      const gdb_byte *op_end,
-                                      struct dwarf2_per_cu_data *per_cu);
-
 /* Determined tail calls for constructing virtual tail call frames.  */
 
 struct call_site_chain
@@ -300,9 +237,8 @@ struct call_site_chain
   };
 
 struct call_site_stuff;
-extern struct call_site_chain *call_site_find_chain (struct gdbarch *gdbarch,
-                                                    CORE_ADDR caller_pc,
-                                                    CORE_ADDR callee_pc);
+extern gdb::unique_xmalloc_ptr<call_site_chain> call_site_find_chain
+  (struct gdbarch *gdbarch, CORE_ADDR caller_pc, CORE_ADDR callee_pc);
 
 /* A helper function to convert a DWARF register to an arch register.
    ARCH is the architecture.