Compiler: Problem Using "New" in C++ When Compiling with GCC

Jordan Melnychuk1

Tool/software: TI C/C++ Compiler

My project (derived from bigtime) breaks whenever I try to dynamically create objects (using "new", trying to create a vector, ...). I have added "libstdc++.a" found in "kernel/tirtos/packages/gnu/targets/arm/libs/install-native/arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard" and added the C++ headers in the include paths. Additionally I added space to the heap in the .cfg file. It's strange because "malloc" works so I can dynamically create things that way. Is there something else I am missing?

Thanks,

--Jordan

over 5 years ago

0 ToddMullanix over 5 years ago

TI__Guru* 96960 points

Hi Jordan,

Do you have a sample project that we can use to reproduce the problem? Also a few questions

What device are you on?
What software (and version) are you using. For example, SimpleLink SDK 4.10.

Todd

0 Jordan Melnychuk1 over 5 years ago in reply to ToddMullanix

Prodigy 145 points

Hi Todd,

Thanks for getting back so quickly. I am using the CC2562 and on the 3_40_00_02 SDK. I took an example of "bigtime" and added a vector to recreate the issue.

It flashes OK but doesn't look like it is ever actually running. Attached is the project and a snip showing the program flashes but does not run.

--Jordan

bigtime_CC26X2R1_LAUNCHXL_tirtos_gcc.zip

0 ToddMullanix over 5 years ago in reply to Jordan Melnychuk1

TI__Guru* 96960 points

Jordan,

Thanks. I'll try to reproduce the issue. One point of clarification though. Are you using a CC2562? The SimpleLink SDK does not work that device. It is for the CC13xx and CC26xx devices.

Todd

0 Jordan Melnychuk1 over 5 years ago in reply to ToddMullanix

Prodigy 145 points

Sorry I mistyped that, I am using the CC2652. Must have typed that before I had enough coffee this morning.

Thanks,

--Jordan

0 Robert Tivy over 5 years ago in reply to Jordan Melnychuk1

TI__Mastermind 18260 points

Hi Jordan,

I was able to build your project and observe what you reported - doesn't reach main() although it is able to start running from _c_int00, and without the V vector code it reaches main(). I don't know why yet, but before I debug it I wanted to point out a build problem and wonder if it has something to do with the issue.

When I build your project I get this:

../bigtime.cpp: In member function 'void Clock::tick()':
../bigtime.cpp:286:45: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]

It is just a warning and the .out file builds, but perhaps the issue with running the .out file is related to this. Can you "fix" the code to remove the warning and report back?

I apologize that I'm not versed in C++ so I don't know how to get rid of the warning.

Regards,

- Rob

0 Jordan Melnychuk1 over 5 years ago in reply to Robert Tivy

Prodigy 145 points

Hi Rob,

I fixed the warning, but it still does not get to main.

Thanks,

--Jordan

bigtime.cpp

0 Jordan Melnychuk1 over 5 years ago in reply to Jordan Melnychuk1

Prodigy 145 points

Hi Rob or Todd,

I'm just following up to see if anyone was able to investigate this issue more.

Thanks,

--Jordan

0 ToddMullanix over 5 years ago in reply to Jordan Melnychuk1

TI__Guru* 96960 points

Hi Jordan,

Sorry for the delay. We've had a priority issue pop-up. I'll be able to look into this more tomorrow (and hopefully this afternoon).

Todd

0 ToddMullanix over 5 years ago in reply to ToddMullanix

TI__Guru* 96960 points

Jordan,

I sent you an invite so we could resolve this over a WebEx. Can you respond to that invite.

Todd

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Compiler: Problem Using "New" in C++ When Compiling with GCC