Contents of the .debug_info section:
Compilation Unit @ offset 0x0:
Length: 0x18b (32-bit)
Version: 2
Abbrev Offset: 0x0
Pointer Size: 4
<0><b>: Abbrev Number: 1 (DW_TAG_compile_unit)
<c> DW_AT_producer : (indirect string, offset: 0x22): GNU C 4.8.4 -mx32 -mtune=generic -march=x86-64 -gdwarf-2 -fstack-protector
<10> DW_AT_language : 1 (ANSI C)
<11> DW_AT_name : (indirect string, offset: 0x1ae): mpers-mx32/struct_hd_geometry.c
<15> DW_AT_comp_dir : (indirect string, offset: 0x134): /usr/local/google/home/enh/Downloads/strace-4.16
<19> DW_AT_stmt_list : 0x0
<1><1d>: Abbrev Number: 2 (DW_TAG_base_type)
<1e> DW_AT_byte_size : 1
<1f> DW_AT_encoding : 6 (signed char)
<20> DW_AT_name : (indirect string, offset: 0x199): signed char
<1><24>: Abbrev Number: 2 (DW_TAG_base_type)
<25> DW_AT_byte_size : 2
<26> DW_AT_encoding : 5 (signed)
<27> DW_AT_name : (indirect string, offset: 0x186): short int
<1><2b>: Abbrev Number: 3 (DW_TAG_base_type)
<2c> DW_AT_byte_size : 4
<2d> DW_AT_encoding : 5 (signed)
<2e> DW_AT_name : int
<1><32>: Abbrev Number: 2 (DW_TAG_base_type)
<33> DW_AT_byte_size : 8
<34> DW_AT_encoding : 5 (signed)
<35> DW_AT_name : (indirect string, offset: 0x178): long long int
<1><39>: Abbrev Number: 2 (DW_TAG_base_type)
<3a> DW_AT_byte_size : 1
<3b> DW_AT_encoding : 8 (unsigned char)
<3c> DW_AT_name : (indirect string, offset: 0xaa): unsigned char
<1><40>: Abbrev Number: 2 (DW_TAG_base_type)
<41> DW_AT_byte_size : 2
<42> DW_AT_encoding : 7 (unsigned)
<43> DW_AT_name : (indirect string, offset: 0x6d): short unsigned int
<1><47>: Abbrev Number: 2 (DW_TAG_base_type)
<48> DW_AT_byte_size : 4
<49> DW_AT_encoding : 7 (unsigned)
<4a> DW_AT_name : (indirect string, offset: 0x114): unsigned int
<1><4e>: Abbrev Number: 2 (DW_TAG_base_type)
<4f> DW_AT_byte_size : 8
<50> DW_AT_encoding : 7 (unsigned)
<51> DW_AT_name : (indirect string, offset: 0x93): long long unsigned int
<1><55>: Abbrev Number: 2 (DW_TAG_base_type)
<56> DW_AT_byte_size : 4
<57> DW_AT_encoding : 5 (signed)
<58> DW_AT_name : (indirect string, offset: 0x190): long int
<1><5c>: Abbrev Number: 2 (DW_TAG_base_type)
<5d> DW_AT_byte_size : 4
<5e> DW_AT_encoding : 7 (unsigned)
<5f> DW_AT_name : (indirect string, offset: 0xb8): long unsigned int
<1><63>: Abbrev Number: 2 (DW_TAG_base_type)
<64> DW_AT_byte_size : 4
<65> DW_AT_encoding : 7 (unsigned)
<66> DW_AT_name : (indirect string, offset: 0x16f): sizetype
<1><6a>: Abbrev Number: 2 (DW_TAG_base_type)
<6b> DW_AT_byte_size : 1
<6c> DW_AT_encoding : 6 (signed char)
<6d> DW_AT_name : (indirect string, offset: 0x12f): char
<1><71>: Abbrev Number: 4 (DW_TAG_pointer_type)
<72> DW_AT_byte_size : 4
<73> DW_AT_type : <0x77>
<1><77>: Abbrev Number: 5 (DW_TAG_const_type)
<78> DW_AT_type : <0x6a>
<1><7c>: Abbrev Number: 6 (DW_TAG_structure_type)
<7d> DW_AT_name : (indirect string, offset: 0xca): sysent
<81> DW_AT_byte_size : 20
<82> DW_AT_decl_file : 1
<83> DW_AT_decl_line : 4
<84> DW_AT_sibling : <0xcf>
<2><88>: Abbrev Number: 7 (DW_TAG_member)
<89> DW_AT_name : (indirect string, offset: 0xe2): nargs
<8d> DW_AT_decl_file : 1
<8e> DW_AT_decl_line : 5
<8f> DW_AT_type : <0x47>
<93> DW_AT_data_member_location: 2 byte block: 23 0 (DW_OP_plus_uconst: 0)
<2><96>: Abbrev Number: 7 (DW_TAG_member)
<97> DW_AT_name : (indirect string, offset: 0x89): sys_flags
<9b> DW_AT_decl_file : 1
<9c> DW_AT_decl_line : 6
<9d> DW_AT_type : <0x2b>
<a1> DW_AT_data_member_location: 2 byte block: 23 4 (DW_OP_plus_uconst: 4)
<2><a4>: Abbrev Number: 8 (DW_TAG_member)
<a5> DW_AT_name : sen
<a9> DW_AT_decl_file : 1
<aa> DW_AT_decl_line : 7
<ab> DW_AT_type : <0x2b>
<af> DW_AT_data_member_location: 2 byte block: 23 8 (DW_OP_plus_uconst: 8)
<2><b2>: Abbrev Number: 7 (DW_TAG_member)
<b3> DW_AT_name : (indirect string, offset: 0x1a5): sys_func
<b7> DW_AT_decl_file : 1
<b8> DW_AT_decl_line : 8
<b9> DW_AT_type : <0xda>
<bd> DW_AT_data_member_location: 2 byte block: 23 c (DW_OP_plus_uconst: 12)
<2><c0>: Abbrev Number: 7 (DW_TAG_member)
<c1> DW_AT_name : (indirect string, offset: 0x80): sys_name
<c5> DW_AT_decl_file : 1
<c6> DW_AT_decl_line : 9
<c7> DW_AT_type : <0x71>
<cb> DW_AT_data_member_location: 2 byte block: 23 10 (DW_OP_plus_uconst: 16)
<2><ce>: Abbrev Number: 0
<1><cf>: Abbrev Number: 9 (DW_TAG_subroutine_type)
<d0> DW_AT_type : <0x2b>
<d4> DW_AT_sibling : <0xda>
<2><d8>: Abbrev Number: 10 (DW_TAG_unspecified_parameters)
<2><d9>: Abbrev Number: 0
<1><da>: Abbrev Number: 4 (DW_TAG_pointer_type)
<db> DW_AT_byte_size : 4
<dc> DW_AT_type : <0xcf>
<1><e0>: Abbrev Number: 11 (DW_TAG_typedef)
<e1> DW_AT_name : (indirect string, offset: 0x121): struct_sysent
<e5> DW_AT_decl_file : 1
<e6> DW_AT_decl_line : 10
<e7> DW_AT_type : <0x7c>
<1><eb>: Abbrev Number: 4 (DW_TAG_pointer_type)
<ec> DW_AT_byte_size : 4
<ed> DW_AT_type : <0xf1>
<1><f1>: Abbrev Number: 5 (DW_TAG_const_type)
<f2> DW_AT_type : <0xe0>
<1><f6>: Abbrev Number: 2 (DW_TAG_base_type)
<f7> DW_AT_byte_size : 1
<f8> DW_AT_encoding : 2 (boolean)
<f9> DW_AT_name : (indirect string, offset: 0x16): _Bool
<1><fd>: Abbrev Number: 12 (DW_TAG_structure_type)
<fe> DW_AT_name : (indirect string, offset: 0x0): hd_geometry
<102> DW_AT_byte_size : 8
<103> DW_AT_decl_file : 2
<104> DW_AT_decl_line : 313
<106> DW_AT_sibling : <0x147>
<2><10a>: Abbrev Number: 13 (DW_TAG_member)
<10b> DW_AT_name : (indirect string, offset: 0x1ce): heads
<10f> DW_AT_decl_file : 2
<110> DW_AT_decl_line : 314
<112> DW_AT_type : <0x39>
<116> DW_AT_data_member_location: 2 byte block: 23 0 (DW_OP_plus_uconst: 0)
<2><119>: Abbrev Number: 13 (DW_TAG_member)
<11a> DW_AT_name : (indirect string, offset: 0x10c): sectors
<11e> DW_AT_decl_file : 2
<11f> DW_AT_decl_line : 315
<121> DW_AT_type : <0x39>
<125> DW_AT_data_member_location: 2 byte block: 23 1 (DW_OP_plus_uconst: 1)
<2><128>: Abbrev Number: 13 (DW_TAG_member)
<129> DW_AT_name : (indirect string, offset: 0xc): cylinders
<12d> DW_AT_decl_file : 2
<12e> DW_AT_decl_line : 316
<130> DW_AT_type : <0x40>
<134> DW_AT_data_member_location: 2 byte block: 23 2 (DW_OP_plus_uconst: 2)
<2><137>: Abbrev Number: 13 (DW_TAG_member)
<138> DW_AT_name : (indirect string, offset: 0x1c): start
<13c> DW_AT_decl_file : 2
<13d> DW_AT_decl_line : 317
<13f> DW_AT_type : <0x5c>
<143> DW_AT_data_member_location: 2 byte block: 23 4 (DW_OP_plus_uconst: 4)
<2><146>: Abbrev Number: 0
<1><147>: Abbrev Number: 11 (DW_TAG_typedef)
<148> DW_AT_name : (indirect string, offset: 0xe8): struct_hd_geometry
<14c> DW_AT_decl_file : 3
<14d> DW_AT_decl_line : 34
<14e> DW_AT_type : <0xfd>
<1><152>: Abbrev Number: 14 (DW_TAG_variable)
<153> DW_AT_name : (indirect string, offset: 0xd1): current_wordsize
<157> DW_AT_decl_file : 4
<158> DW_AT_decl_line : 757
<15a> DW_AT_type : <0x47>
<15e> DW_AT_external : 1
<15f> DW_AT_declaration : 1
<1><160>: Abbrev Number: 14 (DW_TAG_variable)
<161> DW_AT_name : (indirect string, offset: 0xca): sysent
<165> DW_AT_decl_file : 4
<166> DW_AT_decl_line : 892
<168> DW_AT_type : <0xeb>
<16c> DW_AT_external : 1
<16d> DW_AT_declaration : 1
<1><16e>: Abbrev Number: 14 (DW_TAG_variable)
<16f> DW_AT_name : (indirect string, offset: 0x165): nsyscalls
<173> DW_AT_decl_file : 4
<174> DW_AT_decl_line : 903
<176> DW_AT_type : <0x47>
<17a> DW_AT_external : 1
<17b> DW_AT_declaration : 1
<1><17c>: Abbrev Number: 15 (DW_TAG_variable)
<17d> DW_AT_name : (indirect string, offset: 0xfb): mpers_target_var
<181> DW_AT_decl_file : 3
<182> DW_AT_decl_line : 36
<183> DW_AT_type : <0x147>
<187> DW_AT_external : 1
<188> DW_AT_location : 5 byte block: 3 4 0 0 0 (DW_OP_addr: 4)
<1><18e>: Abbrev Number: 0