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author | Tankut Baris Aktemur <tankut.baris.aktemur@intel.com> | 2019-12-20 17:43:06 +0100 |
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committer | Tankut Baris Aktemur <tankut.baris.aktemur@intel.com> | 2019-12-20 17:43:06 +0100 |
commit | e35000a7f8be021459102751db7e0b7e2868b57e (patch) | |
tree | aa3a333c82cf88c9d3e542142cddca842f7898d2 /gdb/gdbtypes.h | |
parent | b4b49dcbff6b437fa8b4e2fc0c3f27b457f11310 (diff) | |
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gdb: recognize new DWARF attributes: defaulted, deleted, calling conv.
Extend GDB's internal representation of types to include the
DW_AT_calling_convention, DW_AT_defaulted, and DW_AT_deleted attributes
that were introduced in DWARF5.
These attributes will be helpful in a future patch about infcall'ing
functions with call-by-value parameters. GDB will use the attributes
to decide whether the type of a call-by-value parameter is implicitly
pass-by-reference.
gdb/ChangeLog:
2019-12-20 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>
* dwarf2read.c (dwarf2_add_member_fn): Read the DW_AT_defaulted
and DW_AT_deleted attributes of a function.
(read_structure_type): Read the DW_AT_calling_convention attribute
of a type.
(is_valid_DW_AT_defaulted): New function.
(is_valid_DW_AT_calling_convention_for_type): New function.
* gdbtypes.h: Include dwarf2.h.
(struct fn_field)<defaulted>: New field to store the
DW_AT_defaulted attribute.
(struct fn_field)<is_deleted>: New field to store the
DW_AT_deleted attribute.
(struct cplus_struct_type)<calling_convention>: New field to store
the DW_AT_calling_convention attribute.
(TYPE_FN_FIELD_DEFAULTED): New macro.
(TYPE_FN_FIELD_DELETED): New macro.
(TYPE_CPLUS_CALLING_CONVENTION): New macro.
* gdbtypes.c (dump_fn_fieldlists): Update for the changes made
to the .h file.
(print_cplus_stuff): Likewise.
Change-Id: I54192f363115b78ec7435a8563b73fcace420765
Diffstat (limited to 'gdb/gdbtypes.h')
-rw-r--r-- | gdb/gdbtypes.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h index a1d95e0..12fa437 100644 --- a/gdb/gdbtypes.h +++ b/gdb/gdbtypes.h @@ -50,6 +50,7 @@ #include "gdbsupport/enum-flags.h" #include "gdbsupport/underlying.h" #include "gdbsupport/print-utils.h" +#include "dwarf2.h" /* Forward declarations for prototypes. */ struct field; @@ -957,9 +958,18 @@ struct fn_field unsigned int is_constructor : 1; + /* * True if this function is deleted, false otherwise. */ + + unsigned int is_deleted : 1; + + /* * DW_AT_defaulted attribute for this function. The value is one + of the DW_DEFAULTED constants. */ + + ENUM_BITFIELD (dwarf_defaulted_attribute) defaulted : 2; + /* * Unused. */ - unsigned int dummy:9; + unsigned int dummy:6; /* * Index into that baseclass's virtual function table, minus 2; else if static: VOFFSET_STATIC; else: 0. */ @@ -1033,6 +1043,12 @@ struct cplus_struct_type int is_dynamic : 2; + /* * The calling convention for this type, fetched from the + DW_AT_calling_convention attribute. The value is one of the + DW_CC constants. */ + + ENUM_BITFIELD (dwarf_calling_convention) calling_convention : 8; + /* * The base class which defined the virtual function table pointer. */ struct type *vptr_basetype; @@ -1437,6 +1453,8 @@ extern void set_type_vptr_basetype (struct type *, struct type *); ? (struct cplus_struct_type*)&cplus_struct_default \ : TYPE_RAW_CPLUS_SPECIFIC(thistype)) #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff +#define TYPE_CPLUS_CALLING_CONVENTION(thistype) \ + TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff->calling_convention #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type @@ -1553,6 +1571,8 @@ extern void set_type_vptr_basetype (struct type *, struct type *); #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2) #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1) #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC) +#define TYPE_FN_FIELD_DEFAULTED(thisfn, n) ((thisfn)[n].defaulted) +#define TYPE_FN_FIELD_DELETED(thisfn, n) ((thisfn)[n].is_deleted) /* Accessors for typedefs defined by a class. */ #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \ |