John Smith <ds0163@xxxxxxxxx> writes: > Im working on a source level C debugger using gcc. > I dont understand the loc section below. What does it mean? > I processed some other loc-s successfully. > > > <1><25>: Abbrev Number: 2 (DW_TAG_subprogram) > <26> DW_AT_external : 1 > <27> DW_AT_name : (indirect string, offset: 0x27): main > <2b> DW_AT_decl_file : 1 > <2c> DW_AT_decl_line : 5 > <2d> DW_AT_prototyped : 1 > <2e> DW_AT_type : <0x74> > <32> DW_AT_low_pc : 0x200040 > <36> DW_AT_high_pc : 0x200054 > <3a> DW_AT_frame_base : 2 byte block: 7d 0 (DW_OP_breg13: 0) > <3d> DW_AT_sibling : <0x74> > > > <2><64>: Abbrev Number: 5 (DW_TAG_variable) > <65> DW_AT_name : (indirect string, offset: 0x0): pLong > <69> DW_AT_decl_file : 1 > <6a> DW_AT_decl_line : 9 > <6b> DW_AT_type : <0x88> > <6f> DW_AT_location : 0x48 (location list) > > > 00000048 00200040 00200048 (DW_OP_const2s: -3072; DW_OP_stack_value) > 00000048 00200048 0020004c (DW_OP_const2s: -3056; DW_OP_stack_value) > 00000048 0020004c 00200050 (DW_OP_const2s: -2912; DW_OP_stack_value) > 00000048 00200050 00200054 (DW_OP_const2s: -3016; DW_OP_stack_value) > 00000048 <End of list> The DWARF standards are available at http://dwarfstd.org/ . There is a bunch of stuff in the above. Which part do you not understand? The loc list at the end is giving you a list of locations on the stack where the variable may be found. Ian
