• Bill Baxter <dnewsgroup billbaxter.com> Sep 13 2007
• Jascha Wetzel <"[firstname]" mainia.de> Sep 14 2007
• Bill Baxter <dnewsgroup billbaxter.com> Sep 14 2007
• Jascha Wetzel <firstname mainia.de> Sep 15 2007

What's up with finding source files in ddbg?

What I do most for testing is run my program.
If it crashes, I run it again inside ddbg.
It crashes again and then I type 'ps'.

At that point it pretty much always tells me "source file for current 
location unknown".  Ok, so that's probably because I'm on the wrong 
frame (I'd think even then it should print out the topmost frame that 
does have source).  But if I 'f 2' to get to what should be my code it 
*still* says 'source file for current location unknown'.

'lsm' though, tells me all the files just fine.

If I set a breakpoint and run to that, though, 'ps' works.

Any chance listing could be made to work without having to set breakpoints?

--bb

Bill Baxter wrote:
 What's up with finding source files in ddbg?
 
 What I do most for testing is run my program.
 If it crashes, I run it again inside ddbg.
 It crashes again and then I type 'ps'.
 
 At that point it pretty much always tells me "source file for current 
 location unknown".  Ok, so that's probably because I'm on the wrong 
 frame (I'd think even then it should print out the topmost frame that 
 does have source).  But if I 'f 2' to get to what should be my code it 
 *still* says 'source file for current location unknown'.
 
 'lsm' though, tells me all the files just fine.
 
 If I set a breakpoint and run to that, though, 'ps' works.
 
 Any chance listing could be made to work without having to set breakpoints?
 
 --bb


i will add printing the "last known" source position in the next 
release. it should certainly work in all the other situations.
i will try to reproduce this problem. it would be great if you could 
provide me with a testcase to do so.

Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Jascha Wetzel wrote:
 Bill Baxter wrote:
 What's up with finding source files in ddbg?

 What I do most for testing is run my program.
 If it crashes, I run it again inside ddbg.
 It crashes again and then I type 'ps'.

 At that point it pretty much always tells me "source file for current 
 location unknown".  Ok, so that's probably because I'm on the wrong 
 frame (I'd think even then it should print out the topmost frame that 
 does have source).  But if I 'f 2' to get to what should be my code it 
 *still* says 'source file for current location unknown'.

 'lsm' though, tells me all the files just fine.

 If I set a breakpoint and run to that, though, 'ps' works.

 Any chance listing could be made to work without having to set 
 breakpoints?

 --bb


 i will add printing the "last known" source position in the next 
 release. it should certainly work in all the other situations.
 i will try to reproduce this problem. it would be great if you could 
 provide me with a testcase to do so.


Great.  Here you go.
I don't know if all the different files are strictly necessary to 
reproduce it but this does reproduce the problem for me.

When you run it, 'us' should give frame 2 as something like main.d:22.
But doing "f 2" then "ps" says "source file for current location unknown".

ps *does* try to print source from the current active frame, right?  If 
instead it always tries to print the source of frame 0 then that would 
explain it, but that's odd behavior and isn't in line with how other 
debuggers work.

This is with ddbg v0.10b, DMD 1.021 compiler.

--bb

Bill Baxter wrote:
 Jascha Wetzel wrote:
 Bill Baxter wrote:
 What's up with finding source files in ddbg?

 What I do most for testing is run my program.
 If it crashes, I run it again inside ddbg.
 It crashes again and then I type 'ps'.

 At that point it pretty much always tells me "source file for current 
 location unknown".  Ok, so that's probably because I'm on the wrong 
 frame (I'd think even then it should print out the topmost frame that 
 does have source).  But if I 'f 2' to get to what should be my code 
 it *still* says 'source file for current location unknown'.

 'lsm' though, tells me all the files just fine.

 If I set a breakpoint and run to that, though, 'ps' works.

 Any chance listing could be made to work without having to set 
 breakpoints?

 --bb


 i will add printing the "last known" source position in the next 
 release. it should certainly work in all the other situations.
 i will try to reproduce this problem. it would be great if you could 
 provide me with a testcase to do so.


 Great.  Here you go.
 I don't know if all the different files are strictly necessary to 
 reproduce it but this does reproduce the problem for me.
 
 When you run it, 'us' should give frame 2 as something like main.d:22.
 But doing "f 2" then "ps" says "source file for current location unknown".
 
 ps *does* try to print source from the current active frame, right?  If 
 instead it always tries to print the source of frame 0 then that would 
 explain it, but that's odd behavior and isn't in line with how other 
 debuggers work.
 
 This is with ddbg v0.10b, DMD 1.021 compiler.
 
 --bb


ah ic, i fixed that one already in my soon-to-be 0.11 version.
i've put a current build here: 
http://ddbg.mainia.de/Ddbg-0.11-beta%20preview.zip

the ps command was ignoring the selected frame and always using the 
current instruction pointer.