• Victor Porton (12/12) Jan 17 2019 After main() of my program finishes, I have this error message:
• Alex (7/18) Jan 17 2019 Which operating system do you use? And which compiler version?
• Victor Porton (12/37) Jan 17 2019 No, for me my bug is worse than #2820: I do not see any stack
• Victor Porton (9/20) Jan 17 2019 I've tried it with plain GDB 8.2.
• Rainer Schuetze (7/38) Jan 17 2019 You might want to set a breakpoint on function
• kinke (3/6) Jan 18 2019 He's using LDC, so he'll just need to specify

Victor Porton <porton narod.ru> writes:

After main() of my program finishes, I have this error message:

core.exception.InvalidMemoryOperationError core/exception.d(700): 
Invalid memory operation

Which debugger (preferably with a GUI interface) do you suggest 
to investigate this error?

I tried DDD and KDbg.

In DDD when I set `catch throw InvalidMemoryOperationError` or 
`catch throw core.exception.InvalidMemoryOperationError`, the 
exception is not called nevertheless.

In KDbg, I don't see any way to set an exception breakpoint, at 
all.

I use LDC2.

Alex <sascha.orlov gmail.com> writes:

On Thursday, 17 January 2019 at 16:37:55 UTC, Victor Porton wrote:
 After main() of my program finishes, I have this error message:

 core.exception.InvalidMemoryOperationError core/exception.d(700): Invalid
memory operation

 Which debugger (preferably with a GUI interface) do you suggest 
 to investigate this error?

 I tried DDD and KDbg.

 In DDD when I set `catch throw InvalidMemoryOperationError` or 
 `catch throw core.exception.InvalidMemoryOperationError`, the 
 exception is not called nevertheless.

 In KDbg, I don't see any way to set an exception breakpoint, at 
 all.

 I use LDC2.

Which operating system do you use? And which compiler version?
Is this maybe another occurrence of
https://github.com/ldc-developers/ldc/issues/2820
?

If so, do you have a usable minimal example of your code to post 
and try it out?

Victor Porton <porton narod.ru> writes:

On Thursday, 17 January 2019 at 20:41:27 UTC, Alex wrote:
 On Thursday, 17 January 2019 at 16:37:55 UTC, Victor Porton 
 wrote:
 After main() of my program finishes, I have this error message:

 core.exception.InvalidMemoryOperationError core/exception.d(700): Invalid
memory operation

 Which debugger (preferably with a GUI interface) do you 
 suggest to investigate this error?

 I tried DDD and KDbg.

 In DDD when I set `catch throw InvalidMemoryOperationError` or 
 `catch throw core.exception.InvalidMemoryOperationError`, the 
 exception is not called nevertheless.

 In KDbg, I don't see any way to set an exception breakpoint, 
 at all.

 I use LDC2.

 Which operating system do you use? And which compiler version?
 Is this maybe another occurrence of
 https://github.com/ldc-developers/ldc/issues/2820
 ?

 If so, do you have a usable minimal example of your code to 
 post and try it out?


trace. I do not claim that there is a bug in a compiler (actually 
I am almost sure that it is my mistake and I do something like 
freeing memory twice).

I need help to get a stack trace for the very reason that I do 
not want to spend time producing a minimal example, but want to 
use a debugger instead.

Ubuntu Linux 18.10.

$ ldc2 --version
LDC - the LLVM D compiler (1.11.0):
   based on DMD v2.081.2 and LLVM 6.0.1

Victor Porton <porton narod.ru> writes:

On Thursday, 17 January 2019 at 16:37:55 UTC, Victor Porton wrote:
 After main() of my program finishes, I have this error message:

 core.exception.InvalidMemoryOperationError core/exception.d(700): Invalid
memory operation

 Which debugger (preferably with a GUI interface) do you suggest 
 to investigate this error?

 I tried DDD and KDbg.

 In DDD when I set `catch throw InvalidMemoryOperationError` or 
 `catch throw core.exception.InvalidMemoryOperationError`, the 
 exception is not called nevertheless.

 In KDbg, I don't see any way to set an exception breakpoint, at 
 all.

 I use LDC2.

I've tried it with plain GDB 8.2.

The following does not work:

catch throw InvalidMemoryOperationError
catch throw core.exception.InvalidMemoryOperationError

Despite of the above commands, the exception is not caught and so 
I am unable to see the callstack which has led to the exception.

Please help me to find a way to see the callstack in order to be 
able to debug my software!

Rainer Schuetze <r.sagitario gmx.de> writes:

On 17/01/2019 23:12, Victor Porton wrote:
 On Thursday, 17 January 2019 at 16:37:55 UTC, Victor Porton wrote:
 After main() of my program finishes, I have this error message:

 core.exception.InvalidMemoryOperationError core/exception.d(700):
 Invalid memory operation

 Which debugger (preferably with a GUI interface) do you suggest to
 investigate this error?

 I tried DDD and KDbg.

 In DDD when I set `catch throw InvalidMemoryOperationError` or `catch
 throw core.exception.InvalidMemoryOperationError`, the exception is
 not called nevertheless.

 In KDbg, I don't see any way to set an exception breakpoint, at all.

 I use LDC2.

 
 I've tried it with plain GDB 8.2.
 
 The following does not work:
 
 catch throw InvalidMemoryOperationError
 catch throw core.exception.InvalidMemoryOperationError
 
 Despite of the above commands, the exception is not caught and so I am
 unable to see the callstack which has led to the exception.
 
 Please help me to find a way to see the callstack in order to be able to
 debug my software!

You might want to set a breakpoint on function
onInvalidMemoryOperationError. Probably this is the function that is
throwing the error.

Debugging experience will likely improve if you build the runtime
library with debug information. (see
https://wiki.dlang.org/Building_under_Posix).

kinke <noone nowhere.com> writes:

On Friday, 18 January 2019 at 07:48:21 UTC, Rainer Schuetze wrote:
 Debugging experience will likely improve if you build the 
 runtime library with debug information. (see 
 https://wiki.dlang.org/Building_under_Posix).

He's using LDC, so he'll just need to specify 
`-link-defaultlib-debug` in the LDC command line.