Full path in compiler warning/error messages

Full path in compiler warning/error messages

[Geert Vancompernolle]

Hi,

I have a situation where I can only see part of the path name when 
gcc/g++ finds errors/warnings.  One such example is given below:

../src/mqmgr.cpp: In member function `virtual void 
CMqMgrUnique::Execute()':
../src/mqmgr.cpp:319: warning: unsigned int format, pointer arg (arg 2)
../src/mqmgr.cpp:353: warning: int format, long int arg (arg 3)
../src/mqmgr.cpp:375: warning: int format, long int arg (arg 3)


This is the compiler invocation command currently used:

g++-cris  -isystem 
/home/foxboard/devboard-R2_01/target/cris-axis-linux-gnu/include -mlinux 
-mno-mul-bug-workaround -c -Wall -Wshadow -O0 -g 
-fno-omit-frame-pointer  -DGVCDEBUG -fmessage-length=0 ../src/mqmgr.cpp 
-o mqmgr.o

What is the option to tell the compiler (in the above case, compiling 
for the CRIS) to show the whole path?  Should be fairly easy to do, but 
so far I didn't find the option.

-- 
*Best rgds,

--Geert

*

Re: Full path in compiler warning/error messages

[Geert Vancompernolle]

Geert Vancompernolle wrote:
> Hi,
>
> I have a situation where I can only see part of the path name when 
> gcc/g++ finds errors/warnings.  One such example is given below:
>
> ../src/mqmgr.cpp: In member function `virtual void 
> CMqMgrUnique::Execute()':
> ../src/mqmgr.cpp:319: warning: unsigned int format, pointer arg (arg 2)
> ../src/mqmgr.cpp:353: warning: int format, long int arg (arg 3)
> ../src/mqmgr.cpp:375: warning: int format, long int arg (arg 3)
>
>
> This is the compiler invocation command currently used:
>
> g++-cris  -isystem 
> /home/foxboard/devboard-R2_01/target/cris-axis-linux-gnu/include 
> -mlinux -mno-mul-bug-workaround -c -Wall -Wshadow -O0 -g 
> -fno-omit-frame-pointer  -DGVCDEBUG -fmessage-length=0 
> ../src/mqmgr.cpp -o mqmgr.o
>
> What is the option to tell the compiler (in the above case, compiling 
> for the CRIS) to show the whole path?  Should be fairly easy to do, 
> but so far I didn't find the option.
>
Found it out myself:

I was not passing the complete path when invoking the compilation.  In 
my Makefile, I had the following construction:

...
%.o: $(SRCDIR)/%.cpp
    @echo
    @echo " ==> Compiling C++-target ***\"$<\"***..."
    $(CXX) -c $(CFLAGS) $< -o $*.o
    $(CXX) -MM $(CFLAGS) $< > $*.d
    @mv -f $*.d $*.d.tmp
    @sed -e 's|.*:|$*.o:|' < $*.d.tmp > $*.d
    @sed -e 's/.*://' -e 's/\\$$//' < $*.d.tmp | fmt -1 | sed -e 's/^ 
*//' -e 's/$$/:/' >> $*.d
    @rm -f $*.d.tmp
...

where SRCDIR was defined as follows:

SRCDIR := ../src


Now, I've defined SRCDIR as follows:

SRCDIR   := $(shell pwd)/../src

This time, the compiler gives me the full path.

So, it has apparently nothing to do with compiler options, it's just a 
matter how you invoke the compiler...

-- 
*Best rgds,

--Geert
*