Code Profiling tools

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How to use Valgrind on WP76 to investigate memory leaks

You can try the procedure below on WP76 R13.3: download the yocto source code open ./meta-swi/meta-swi-mdm9x28/recipes-core/images/mdm9x28-image.inc and add the following line: IMAGE_INSTALL_append = " valgrind" make the yocto image there will be error to make the yocto.cwe as it is too big. Instead we need to transfer the binary to module’s RAM area on module, type the following: mkdir /tmp/valgrind on PC: scp ./build_bin/tmp/work/armv7a-neon-poky-linux-gnueabi/valgrind/3.13.…

Valgrind's memory management: out of memory:

I don’t see problem with WP76 R13 with attached binary: valgrind.rar (3.3 MB) mkdir /tmp/valgrind mkdir /tmp/tmp_lib;mkdir /tmp/tmp_lib_wr; cp -rf /lib /tmp/tmp_lib mount -t overlay overlay /lib -o lowerdir=/lib,upperdir=/tmp/tmp_lib,workdir=/tmp/tmp_lib_wr; Use WINSCP to transfer all the binary to /tmp/valgrind Use WINSCP to transfer ld-linux.so.3 to /lib ( cannot copy directly from /tmp/valgrind to /lib) chmod -R 777 /tmp/valgrind export VALGRIND_LIB=/tmp/valgrind root@swi-mdm9x28-…