Hello People,
I am using Code::Blocks version:
Name : Code::Blocks
Version : svn-r13046
SDK Version : 2.23.0
When I set a breakpoint on an if statement, the code stops on a statement within the block, not on the if statement as I expect. Also, when I set a breakpoint on an assignment statement the code stops on the next non-assignment statement. It looks like the debugger will not stop on any flow control statement, but I have not fully checked this.
Did something change in the last several versions?
I prefer to have programs break on flow control statements so I can evaluate what is going to happen. More importantly, I expect the program to halt wherever I have a breakpoint, regardless of the instruction.
I have enabled debugging symbols and tried variations of optimizations. I have also set both target options as well as project options.
-Og; Optimize debugging executable (compile speed, execution speed and better debugging)
-g; Produce debugging symbols
-O1; Linker output optimization (level 1)
Always breaks on statement below with '--->'.
Never stops on if statement, the line in the if block.
Never stops on the DevicesCount assignment statement.
if (oDevices.find(0) != oDevices.end()) {
CmdRez = oDevices.at(0);
}
if (oDevices.size() > 1)
{
std::map<uint8_t, std::map<uint16_t, std::vector<uint8_t>>>::const_iterator ItorDevices;
std::map<uint16_t, std::vector<uint8_t>> oADevice;
std::map<uint16_t, std::vector<uint8_t>> TempMap;
std::vector<uint8_t> DevicesVector;
uint8_t DeviceCount = 0;
// ADC_LibUSBDevices
---> ResultVector.push_back(((ADC_LibUSBDevices >> 8) & 0xFF));
While researching another issue I thought I saw a post about current versions of Code::Blocks no longer stopping on flow control. However, I was not able to locate whatever it was I saw.
What else can I try? I want to have the program break on flow control and assignment statements.
=thoth=
Hello Tim,
Thank you for answering.
The build log is very long.
I have filtered the log to a single component. A pastebin of the distilled items is at: https://pastebin.com/FcMWZRJE
The compilation options are:
COLLECT_GCC_OPTIONS='-Wall' '-std=c++11' '-fPIC' '-fexceptions' '-v'
'-m64' '-Og' '-g' '-I' '/Libs' '-I' '/Libs/Debian_x64_Debug_Static_GNU/'
'-I' '/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks/../Libs' '-I'
'/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks//../../LPOThirdParty/Source' '-I' '/Libraries/FTDI1/' '-I' '/Libraries/SQLite3/' '-I' '/Libraries/USB1/' '-I' '/usr/include/' '-c' '-o' '/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks/../Out/Debian_x64_Debug_Static_GNU/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.o' '-shared-libgcc' '-mtune=generic' '-march=x86-64' '-dumpdir' '/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks/../Out/Debian_x64_Debug_Static_GNU/CodeTemp/ins_LPOCode/LPO/Source/'
The linker options are:
as -v -I /Libs -I /Libs/Debian_x64_Debug_Static_GNU/ -I
/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks/../Libs -I
/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks//../../LPOThirdParty/Source
-I /Libraries/FTDI1/ -I /Libraries/SQLite3/ -I /Libraries/USB1/ -I
/usr/include/ --gdwarf-5 --64 -o
/SG3Data/CodeTemp/ins_LPOCode/LPO/CodeBlocks/../Out/Debian_x64_Debug_Static_GNU/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.o /tmp/ccd1ayCl.s
GNU assembler version 2.40 (x86_64-linux-gnu) using BFD version (GNU
Binutils for Debian) 2.40
COMPILER_PATH=/usr/lib/gcc/x86_64-linux-gnu/12/:/usr/lib/gcc/x86_64-linux-gnu/12/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/12/:/usr/lib/gcc/x86_64-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/12/:/usr/lib/gcc/x86_64-linux-gnu/12/../../../x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/12/../../../../lib/:/lib/x86_64-linux-gnu/:/lib/../lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-linux-gnu/12/../../../:/lib/:/usr/lib/
As a reminder, I set break points at lines with 'BP' and the debugger halts at '--->'
BP ResultVector[2] = ((DevicesVector.size() >> 8) & 0xFF);
ResultVector[3] = (DevicesVector.size() & 0xFF);
/// Add the Devices Vector to the Command Result Vector.
ResultVector.insert(ResultVector.end(), DevicesVector.begin(), DevicesVector.end());
---> DevicesVector.clear(); std::vector<uint8_t>().swap(DevicesVector);
=thoth=
Hello ollydbg,
In dealing with the debugger, I learned something new.
Thanks!
I put the full debug log at https://pastebin.com/7S6jSzZR with superfluous information removed.
I have attached an image of this post showing a breakpoint at line 577 and the debugger stopping at line 583.
A relavant line from the debugger line is:
[debug]> break "/SG3Data/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.cpp:577"
[debug]Breakpoint 2 at 0xd9a4: file /SG3Data/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.cpp, line 583.
The breakpoint is skipped when I perform the process manually
/usr/bin/gdb -nx -fullname -quiet -args /SG3Data/CodeTemp/ins_LPOCode/LPO/Bin/Debian_x64_Debug_Static_GNU/lpo_d
Reading symbols from /SG3Data/CodeTemp/ins_LPOCode/LPO/Bin/Debian_x64_Debug_Static_GNU/lpo_d...
(gdb) set confirm off
(gdb) set args scan blerg probe -JDN 2459034.79167 -Lat 37.3688 Long=-122.0363 -Unk0 Val0 -Fucked= -f= Switch1 Switch2 Switch3 -dead=beef -Switch4 -Switch5
(gdb) break "/SG3Data/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.cpp:577"
Breakpoint 1 at 0xd9a4: file /SG3Data/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.cpp, line 583.
(gdb) run
Starting program: /SG3Data/CodeTemp/ins_LPOCode/LPO/Bin/Debian_x64_Debug_Static_GNU/lpo_d scan blerg probe -JDN 2459034.79167 -Lat 37.3688 Long=-122.0363 -Unk0 Val0 -Fucked= -f= Switch1 Switch2 Switch3 -dead=beef -Switch4 -Switch5
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
... program output ...
[Thread 0x7ffff7a1e6c0 (LWP 158065) exited]
Thread 1 "lpo_d" hit Breakpoint 1, LPOProgram::DoCommandScan ( ... )
at /SG3Data/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.cpp:583
��/SG3Data/CodeTemp/ins_LPOCode/LPO/Source/lpo_program.cpp:583:14685:beg:0x5555555619a4
(gdb) q
I am able to replicate the behavior throughout the program being debugged.
I see the behavior with assignment and flow control statements.
=thoth=