Re: [Qt-creator] Debugging dumper.py and qt-creator 1.3.1 and gdb 7.1
Hi, forget about my last mail, I downloaded the binary package which includes the qt4.7 =D I was using the git for so long that I had forgotten about it. =p now everything is cool and most important the debugger is working correctly. aaa the debugger... the most important tool in a IDE suit. And Dijkstra who said in a vary famous paper that if a programmer needs the debugger then he shouldn't even be programming in the first place, because it means that he does not know what he is doing... I wonder how many people actually program with suspenders by actually checking the correctness of their code by formal means. oh well thanks for your time hehe =D cheers paulo wrote: Hi, until a while ago I was using qt-creator from git. Recently (can't remember why) I had to reinstall it and since the new version is based on qt4.7 I had to skip it and go for an older qt-creator version. More specifically 1.3.1 Unfortunately the dumper.py does not seem to be supported by this version, right? (hopefully wrong) Which one is the latest version of qt-creator which is still based on 4.6.2? (with dumper.py support) Thank you. Regards, Paulo ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
[Qt-creator] debugger and qt-creator...
Hi (again me) yap the debugger... well I'm debugging some code, and my classes are not shown correctly. I can inspect the variable at the place where it was declared, but when I try to do the same after passing it as an argument into a function I click on the plus sign and nothing... If I add it to the watch exp, nothing again. However if shows the members ok if I add them like obj_name.member_var to the watch window. hummm... qt-1.3.84 downloaded a few minutes ago, linux-x86, gdb 7.1 how about that? cheers, paulo ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] how to attach sources for debugging?
On Fri, May 21, 2010 at 11:05:11PM +0300, Aekold Helbrass wrote: I am using NetBeans (Java) for my everyday work, so I'll describe it as example: Let's assume our line of code looks like this: painter.drawText(getX(), getY(), getString()); When you're pressing step into in NetBeans it highlights all step into possibities, four of them in example above, and highlights one of them as default one, so you can press step into once again to go into default one or you can click with your mouse on any other to step into it. Then, when you're stepped all your way up to the end of getX() for example you're returned to the same line, with one function marked as visited, and you can step into another one. But that's debugging Java, not C++? For a fair comparison you would have to compare NetBeans for C++ with Qt Creator, and given that it uses gdb as backend I strongly doubt the functionality you describe exists there. We are more or less restricted to what the debugging backend (gdb in this case) provides, and gdb does not have such 'list all function calls in this line' kind of capability. When I think about it. We could try to use information from the code model and temporary breakpoints to simulate this. I guess we will run into interesting behaviour for inlined code, though. Maybe it's still worth a shot. In QtCreator it steps in the first one to execute (getX() in our case), and when you're stepping over the internals of function up to the end - Qt Creator will not show you the original line again with possibility to step into next function but will act as step over it. I know this is unfortunate, but again, there's no way to know in advance whether a 'step over' will leave the current function or not, so there is not much choice except to provide a separate command to specifically step out of a function (Shift-F11). So it took me some time to understand that I should press step into [Rather step out...] on the last lines of getX() to step into getY(), but I can't just skip them and step directly into drawText(). Yes, it would be seven keystrokes in this case. Andre' ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] Debugging dumper.py and qt-creator 1.3.1 and gdb 7.1
On Sat, May 22, 2010 at 02:49:17PM +0900, paulo wrote:
Hi, until a while ago I was using qt-creator from git.
Recently (can't remember why) I had to reinstall it and since the new
version is based on qt4.7 I had to skip it and go for an older
qt-creator version. More specifically 1.3.1
Unfortunately the dumper.py does not seem to be supported by this
version, right? (hopefully wrong)
1.3.1 was able to use some first version of the Python dumpers, but
they had to be explicitly loaded.
You could try to put
python execfilr('/path/to/dumper.py')
python execfilr('/path/to/gdbmacros.py')
into your .gdbinit and check whether it makes a difference.
If it doesn't, you can still use the Compiled dumpers. They have
been present since 1.2.0 IIRC.
Andre'
PS: Why not just build Qt 4.7 from git, too?
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Re: [Qt-creator] debugger and qt-creator...
On Sat, May 22, 2010 at 05:25:59PM +0900, paulo wrote: Hi (again me) yap the debugger... well I'm debugging some code, and my classes are not shown correctly. I can inspect the variable at the place where it was declared, but when I try to do the same after passing it as an argument into a function I click on the plus sign and nothing... If I add it to the watch exp, nothing again. However if shows the members ok if I add them like obj_name.member_var to the watch window. Could you create some minimal example reproducing this behaviour? Andre' ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] how to attach sources for debugging?
On Sat, May 22, 2010 at 12:40 PM, Andre Poenitz andre.poen...@mathematik.tu-chemnitz.de wrote: On Fri, May 21, 2010 at 11:05:11PM +0300, Aekold Helbrass wrote: I am using NetBeans (Java) for my everyday work, so I'll describe it as example: Let's assume our line of code looks like this: painter.drawText(getX(), getY(), getString()); When you're pressing step into in NetBeans it highlights all step into possibities, four of them in example above, and highlights one of them as default one, so you can press step into once again to go into default one or you can click with your mouse on any other to step into it. Then, when you're stepped all your way up to the end of getX() for example you're returned to the same line, with one function marked as visited, and you can step into another one. But that's debugging Java, not C++? For a fair comparison you would have to compare NetBeans for C++ with Qt Creator, and given that it uses gdb as backend I strongly doubt the functionality you describe exists there. We are more or less restricted to what the debugging backend (gdb in this case) provides, and gdb does not have such 'list all function calls in this line' kind of capability. When I think about it. We could try to use information from the code model and temporary breakpoints to simulate this. I guess we will run into interesting behaviour for inlined code, though. Maybe it's still worth a shot. Of course, I am not telling that Qt Creator is bad or something, I am just new to C++, started learning it as a hobby after feeling the power of Qt with Qt Jambi. And after I tried all easily available C++ IDEs (about 15 of them) I found Qt Creator absolute winner. I just didn't got used to it's behaviour yet. About java-style debugging behaviour - may be it will be better to create an issue in gdb project? In QtCreator it steps in the first one to execute (getX() in our case), and when you're stepping over the internals of function up to the end - Qt Creator will not show you the original line again with possibility to step into next function but will act as step over it. I know this is unfortunate, but again, there's no way to know in advance whether a 'step over' will leave the current function or not, so there is not much choice except to provide a separate command to specifically step out of a function (Shift-F11). So it took me some time to understand that I should press step into [Rather step out...] on the last lines of getX() to step into getY(), but I can't just skip them and step directly into drawText(). Yes, it would be seven keystrokes in this case. Andre' ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] how to attach sources for debugging?
About java-style debugging behaviour - may be it will be better to create an issue in gdb project? Probably, but I have my doubts you'll see much action on it; there are a lot bigger fish to fry. /s/ Adam ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
Re: [Qt-creator] debugger and qt-creator...
Hi,
I tried the following code and I could verify the following symptoms:
- in the main routine you can access the a.i in the locals window, but
not in f(A).
- However if I add a a to the watchers window then I can dereference
the struct and access the *a.i
#include iostream
struct A {
A(const int i) :i(i) {}
int i;
};
void f(A a) {
std::cout a.i;
}
int main(int argc, char *argv[]) {
A a(1);
f(a);
return 0;
}
qtc binary 1.3.84 rev 91cd56e0c6
cheers
paulo
Andre Poenitz wrote:
On Sat, May 22, 2010 at 05:25:59PM +0900, paulo wrote:
Hi (again me)
yap the debugger...
well I'm debugging some code, and my classes are not shown correctly.
I can inspect the variable at the place where it was declared, but when
I try to do the same after passing it as an argument into a function I
click on the plus sign and nothing...
If I add it to the watch exp, nothing again.
However if shows the members ok if I add them like obj_name.member_var
to the watch window.
Could you create some minimal example reproducing this behaviour?
Andre'
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[Qt-creator] Adding directory path for symbol parsing in a generic project
Hi. I'm creating a generic project through the option Import of Makefile-based Project. It is recognizing the symbols under my local includes and also those in /usr/include, but not the ones under /usr/include/SDL. Is there a way to add a directory path to recognize symbols on it, in a generic project? Thanks in advance, Tomas. ___ Qt-creator mailing list Qt-creator@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-creator
