Re: No source file named xxxx

[explodingbadger]

Hi thanks for your help I just worked it out:

Here is the original make file (actually simplified to make the point)

Test: Test.o
        g++ -g3 -gdwarf-2 Test.o -o Test

I noticed if I do this then the debug flags are only used during the linking
phase not in the compilation

If I change the make file to 

Test: Test.cpp
        g++ -g3 -gdwarf-2 Test.cpp -o Test 

Then it works!

Thanks a lot.


Charles Manning-2 wrote:
> 
> Does gdb find symbols in Test.cpp? If you set a break on a symbol and it
> has 
> line info then you should see that displayed. eg.
> 
> (gdb) b main
> Breakpoint 1 at 0x8048385: file xx.c, line 3.
> 
> The default -g level is 2, I wonder whether -g3 is causing some confusion.
> Try 
> just -g
> 
> 
> 
> On Thursday 14 May 2009 14:19:31 explodingbadger wrote:
>> > I would not rely on strip to tell you this. Try objdump.
>> >
>> > In gdb you should be able to hit tab after entering break and gdb
>> should
>> > show
>> > you symbols. You should be able to see file names in the symbols.
>> >
>> > (gdb) break Tes<tab> should also give you completion.
>>
>> Hi thanks very much for your reply.
>>
>> Using tab and auto completion it seems that some files are known for
>> example the debugger 'knows' the source files for a static library I am
>> linking to but not for Test.cpp. I tested this by setting a break point
>> in
>> the shared library using
>> break <filename>:<line number> and it worked but not for Test.cpp.
>>
>> Looking at the out put for objdump -g I do get a lot of information. It
>> looks like this:
>>
>>  <2><b3a7>: Abbrev Number: 29 (DW_TAG_subprogram)
>>     <b3a8>   DW_AT_external    : 1
>>     <b3a9>   DW_AT_name        : (indirect string, offset: 0x595d):
>> operator FixOrdType*
>>     <b3ad>   DW_AT_decl_file   : 30
>>     <b3ae>   DW_AT_decl_line   : 313
>>     <b3b0>   DW_AT_MIPS_linkage_name: (indirect string, offset: 0x4b37):
>> _ZNK8ZmAtomicIP10FixOrdTypeEcvS1_Ev
>>     <b3b4>   DW_AT_type        : <0xb4b1>
>>     <b3b8>   DW_AT_declaration : 1
>>     <b3b9>   DW_AT_sibling     : <0xb3c4>
> 
> 
> 
> 
> 
> 

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