https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110545
Bug ID: 110545 Summary: gcda files not generated for some shared libs Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: gcov-profile Assignee: unassigned at gcc dot gnu.org Reporter: gejoed at rediffmail dot com CC: marxin at gcc dot gnu.org Target Milestone: --- I work on a code where shared libs (xxxlib.so) are being used. During the build --coverage is used (for compiling, linking and for shared libs) and the .gcno files are generated correctly for the source files (involved with the shared libs). For one particular module, I could find out that gcda files are not getting generated on the device. As the binary is loaded on the test device, the gcda files are generated using __gcov_dump() call and I could see gcda files being generated for many files. The __gcov_dump() is invoked through a command on the device and it completes as usual without any error message. I did a strings check for the libraries of the particular module of interest (say A123) and the gcda file paths were embedded in them. I saw that the hardwired path contained relative paths in between like /topdir/nextdir/A123/subcomp1/src/../../build/subcomp1/src/filename.gcda I did make sure that the paths for the component gcda files are made on the device like both these dir paths (as ../.. was used in the path) : /topdir/nextdir/A123/subcomp1/src/ /topdir/nextdir/A123/build/subcomp1/src/ These files get used during the loading of the image and also during the usage of some show commands on the test device which was done prior to gcov_dump execution.The directories have the write permission. However, I could see gcda files getting generated for source files linked with some other shared libraries( say /topdir/anotherdir/B123/subcomp1/obj-files/ ). Sorry that I'm not able to give more info on the original files due to the company policy. Let me know if I need to check anything further for this specific module or in the execution place/device OR if anything is not clear with my description here.