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| Some debugging improvements on linux [message #35262] |
Fri, 27 January 2012 01:45  |
mdelfede
Messages: 1307
Registered: September 2007
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Ultimate Contributor |
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Hi,
tired of seing things like this when debugging on GDB:
{<Upp::Moveable<Upp::String, Upp::AString<Upp::String0> >> = {<Upp::AString<Upp::String0>> = {<Upp::String0> = {<Upp::Moveable<Upp::String0, Upp::EmptyClass>> = {<Upp::EmptyClass> = {<No data fields>}, <No data fields>}, len = 13, s = 0x7fffffffdf70 "a test string", {
chr = "a test string\000\000\r", ptr = 0x7320747365742061 <Address 0x7320747365742061 out of bounds>, wptr = 0x7320747365742061,
qptr = 0x7320747365742061, v = {8289, 25972, 29811, 29472, 29300, 28265, 103, 3328}, w = {1702109281, 1931506803, 1852404340,
218103911}, q = {8295758552588623969, 936749166727098996}}, static voidptr = {{refcount = 2, alloc = 0}, {refcount = 0,
alloc = 0}}}, <No data fields>}, <No data fields>}, <No data fields>}
Which is all but human-readable, I wrote a small IDE addon to allow embedding of python pretty-printers into debugger; the result above is :
Which is a bit more clear 
I'll attach the IDE patches; it's enough to unpack the code in
folder, overwriting the old ones.
I plan to extend python scripts and to make small mods to debugging code to encompass most Upp types.
By now, String and an initial Vector support are embedded.
Ciao
Max
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| Re: Some debugging improvements on linux [message #35263 is a reply to message #35262] |
Fri, 27 January 2012 07:09  |
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Hi Max,
That looks great  I'm using pretty printers for STL at work, but it never occurred to me that we could use the same mechanism for U++... Do you have any idea about the compatibility with different gdb versions? I think it should work in gdb 7.0 and newer, but I also remember something important didn't work before 7.4. If 7.0 is the only requirement, it should be safe to add this to U++, as it would work in all currently supported distributions. And it would sure make our life easier
Best regards,
Honza
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| Re: Some debugging improvements on linux [message #35264 is a reply to message #35263] |
Fri, 27 January 2012 08:15 |
mdelfede
Messages: 1307
Registered: September 2007
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Ultimate Contributor |
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IIRC pretty-printing is supported from GDB 7.0... I really don't know how many gdb versions are used around.
BTW, I was thinking to go a bit further, rewriting from scratch the GDB interface and using python to communicate from upp to gdb.
That should allow to have a more usable and complete debugger in Linux....
Max
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