Hello,
I would like to extract debug information but I have some problems.
For example, I have a executable a.out...
nm -f sysv a.out | grep ".global_var" >vars.txt
With this command I extract all my variables. All of them are in .global_var section, and it give me follow information:
CAN_station_n |08073258| D | OBJECT|00000001| |.global_var
CONTROLend |080732a7| D | OBJECT|00000001| |.global_var
CONTROLinit |080732a8| D | OBJECT|00000001| |.global_var
FORCEempty_changed |080732a5| D | OBJECT|00000001| |.global_var
FORCEmax_bar |08073283| D | OBJECT|00000007| |.global_var
FORCEmax_changed |080732a6| D | OBJECT|00000001| |.global_var
Well, I have only address of my vars, but I would like to know type var or struct of the variables. With dwarf dump I have all of information, but it is a mess...
<1><117bc>: Abbrev Number: 32 (DW_TAG_variable)
<117bd> DW_AT_name : (indirect string, offset: 0x153d): draw_limits
<117c1> DW_AT_decl_file : 128
<117c2> DW_AT_decl_line : 207
<117c3> DW_AT_type : <0x1179a>
<117c7> DW_AT_external : 1
<117c8> DW_AT_location : 5 byte block: 3 72 32 7 8 (DW_OP_addr: 8073272)
<1><117ce>: Abbrev Number: 32 (DW_TAG_variable)
<117cf> DW_AT_name : (indirect string, offset: 0x15cd): step
<117d3> DW_AT_decl_file : 128
<117d4> DW_AT_decl_line : 209
<117d5> DW_AT_type : <0x10139>
<117d9> DW_AT_external : 1
<117da> DW_AT_location : 5 byte block: 3 7a 32 7 8 (DW_OP_addr: 807327a)
Is there any parser or way to put in order this information??
My idea is create a file with the follow information:
name of var - address - type - size - struct or not
Best regards
John Martin
