diff options
Diffstat (limited to 'gcc/dwarf2out.h')
| -rw-r--r-- | gcc/dwarf2out.h | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/gcc/dwarf2out.h b/gcc/dwarf2out.h index fe50956..a0b0fa4 100644 --- a/gcc/dwarf2out.h +++ b/gcc/dwarf2out.h @@ -276,6 +276,25 @@ typedef struct GTY(()) dw_loc_list_struct { struct GTY(()) dw_val_node { enum dw_val_class val_class; + /* On 64-bit host, there are 4 bytes of padding between val_class + and val_entry. Reuse the padding for other content of + dw_loc_descr_node and dw_attr_struct. */ + union dw_val_node_parent + { + struct dw_val_loc_descr_node + { + ENUM_BITFIELD (dwarf_location_atom) dw_loc_opc_v : 8; + /* Used to distinguish DW_OP_addr with a direct symbol relocation + from DW_OP_addr with a dtp-relative symbol relocation. */ + unsigned int dw_loc_dtprel_v : 1; + /* For DW_OP_pick, DW_OP_dup and DW_OP_over operations: true iff. + it targets a DWARF prodecure argument. In this case, it needs to be + relocated according to the current frame offset. */ + unsigned int dw_loc_frame_offset_rel_v : 1; + } u1; + int u2; + enum dwarf_attribute u3; + } GTY((skip)) u; struct addr_table_entry * GTY(()) val_entry; union dw_val_struct_union { @@ -321,15 +340,15 @@ struct GTY(()) dw_val_node { struct GTY((chain_next ("%h.dw_loc_next"))) dw_loc_descr_node { dw_loc_descr_ref dw_loc_next; - ENUM_BITFIELD (dwarf_location_atom) dw_loc_opc : 8; +#define dw_loc_opc dw_loc_oprnd1.u.u1.dw_loc_opc_v /* Used to distinguish DW_OP_addr with a direct symbol relocation from DW_OP_addr with a dtp-relative symbol relocation. */ - unsigned int dtprel : 1; +#define dw_loc_dtprel dw_loc_oprnd1.u.u1.dw_loc_dtprel_v /* For DW_OP_pick, DW_OP_dup and DW_OP_over operations: true iff. it targets a DWARF prodecure argument. In this case, it needs to be relocated according to the current frame offset. */ - unsigned int frame_offset_rel : 1; - int dw_loc_addr; +#define dw_loc_frame_offset_rel dw_loc_oprnd1.u.u1.dw_loc_frame_offset_rel_v +#define dw_loc_addr dw_loc_oprnd2.u.u2 dw_val_node dw_loc_oprnd1; dw_val_node dw_loc_oprnd2; }; @@ -493,7 +512,7 @@ void dwarf2out_cc_finalize (void); Attributes are typically linked below the DIE they modify. */ typedef struct GTY(()) dw_attr_struct { - enum dwarf_attribute dw_attr; +#define dw_attr dw_attr_val.u.u3 dw_val_node dw_attr_val; } dw_attr_node; |