Hi, I tried this and it works, gcda files are being generated.
Could you tell me if when the Scons is executed are all gcc compile commands executed from the same directory from where the Scons file is. Essentially gcov must be called from the same directory as it mantains traces of relative paths to source files and object files Thanks Nipun On Dec 15, 4:50 am, Søren Gjesse <[email protected]> wrote: > Hi, > > It looks like it is the SAMPLE_FLAGS which are missing the options. Applying > the patch below caused my building of the sample shell (scons sample=shell) > to do > > g++ -o obj/sample/shell/release/shell.o -c -fprofile-arcs > -ftest-coverage-O2 -m32 -Iinclude samples/shell.cc > g++ -o shell -m32 obj/sample/shell/release/shell.o -L. -lv8 -lpthread > -lgcov > > =================================================================== > --- SConstruct (revision 947) > +++ SConstruct (working copy) > @@ -198,7 +198,8 @@ > }, > 'gcc': { > 'all': { > - 'LIBS': ['pthread'], > + 'CCFLAGS': ['-fprofile-arcs', '-ftest-coverage'], > + 'LIBS': ['pthread', 'gcov'], > 'LIBPATH': ['.'] > }, > 'os:freebsd': { > > Regards,Søren > > On Mon, Dec 15, 2008 at 10:33 AM, <[email protected]> wrote: > > > also there are 2 types of files generated for gcov these are .gcno > > while compiling and .gcda while running the tests. > > I already have .gcno compile time files... the problem is that a > > linker flag is not set some place... > > > -Nipun > > > On Dec 15, 4:15 am, [email protected] wrote: > > > Hi Soren > > > > Thanks for the quick response. This is the problem I am having. I am > > > probably missing out putting my coverage option some place. > > > Although most of the files are being executed with the-fprofile-arcs - > > > ftest-coverage option. Some of the files are not: each g++ option > > > should be executed with these options: -fprofile-arcs -ftest-coverage > > > > I can't find them in the output given by Scons starting from the > > > following lines.... > > > g++ -o shell obj/sample/shell/release/shell.o -L. -lv8 -lpthread > > > obj/sample/shell/release/shell.o: In function `global constructors > > > keyed to 0_main': > > > shell.cc:(.text+0x2c06): undefined reference to `__gcov_init' > > > obj/sample/shell/release/shell.o:(.data+0x204): undefined reference to > > > `__gcov_merge_add' > > > ./libv8.a(api.o): In function `global constructors keyed to > > > 0__ZN2v88internal2V823FatalProcessOutOfMemoryEPKc': > > > api.cc:(.text+0x293ab): undefined reference to `__gcov_init' > > > > This is resulting in a build error. > > > > Could you help me out? I have my flags set in all the 3 u mentioned > > > earlier. which flags are used for these shells and libv8.a? > > > > Thanks > > > Nipun > > > > On Dec 15, 2:39 am, Søren Gjesse <[email protected]> wrote: > > > > > Hi, > > > > > All the flags for the different configurations are in the SConstruct > > file. > > > > There are different sections of flags, and the ones you are interested > > in > > > > are probably LIBRARY_FLAGS, CCTEST_EXTRA_FLAGS and SAMPLE_FLAGS. What > > is > > > > in LIBRARY_FLAGS is used to build the V8 library. CCTEST_EXTRA_FLAGS > > are > > > > used to build and link the cctest executable used to run all the tests > > > > written in C++. SAMPLE_FLAGS are used to build and link the shell > > sample > > > > used to run all the tests written in JavaScript. > > > > You should think of adding a new flag to the SCons build to control > > > > this (e.g scons coverage=on). Look for the SIMPLE_OPTIONS definition in > > the > > > > SConstruct file, and see how the flags are used to control the compiler > > and > > > > linker options. > > > > > When looking at coverage you should think of including the Mozilla > > tests. > > > > Seehttp://code.google.com/p/v8/wiki/Testingforhowto run them. > > > > > Please share your findings when done. > > > > > Regards, > > > > Søren > > > > > On Mon, Dec 15, 2008 at 3:39 AM, <[email protected]> wrote: > > > > > > Hi > > > > > > I was planning to use gcov for showing coverage using the tests > > > > > provided in V8 source code repository for a project I am doing. I was > > > > > wondering if someone could help me out? I need to change > > > > > configurations in the SConstruct file. The following arguments are > > > > > required for executing gcov. > > > > > > // The source files need to be compiled with the following arguments > > > > > gcc -fprofile-arcs -ftest-coverage > > > > > > and linked with -lgcov argument..... > > > > > > Could someone tell me what arguments do i need change in the > > > > > Sconstruct file to add these arguments. > > > > > > Thanks > > > > > Nipun Arora > > > > > Research Student > > > > > Columbia University > > > > > > PS. I would also appreciate if someone could direct me to > > instructions > > > > > on running the test cases, and any prerequisites for that... is there > > > > > any page with the testing documentation? --~--~---------~--~----~------------~-------~--~----~ v8-users mailing list [email protected] http://groups.google.com/group/v8-users -~----------~----~----~----~------~----~------~--~---
