Hi All, I am trying to run Ofono on a ARM based AP processor. The backtrace function which is present in Ofono is not working on that Processor though I have done following: Enabled -- > enable-debug option Enabled -funwind_tables option in CC_FLAGS within enable-debug option itself (configure.ac) Provided -rdynamic option in LD_FLAGS within enable-debug option itseld ( configure.ac) src/log.c static void print_backtrace(unsigned int offset) { written = write(outfd[1], addr, len); -->This line is failing all the time. } I modified the print_backtrace() to below: static void print_backtrace(unsigned int offset) { void *frames[99]; size_t n_ptrs; //unsigned int i; //int outfd[2], infd[2]; int pathlen; //pid_t pid; if (program_exec == NULL) return; pathlen = strlen(program_path); ofono_error("++++++++ backtrace +++++++++++++++++++++"); n_ptrs = backtrace(frames, G_N_ELEMENTS(frames)); fprintf(stderr, "Last %d frames:\n", n_ptrs); fprintf(stderr, "Offset is %d:\n", offset); backtrace_symbols_fd(frames, n_ptrs, STDERR_FILENO); ofono_error("++++++++++++++++++++++++++++++++++++++++"); } With above modification, I am able to get backtrace but it only prints address not the function names. Result is as below: ofonod[2835]: ++++++++ backtrace +++++++++++++++++++++ Last 8 frames: Offset is 2: ofonod(+0xd5f60)[0x558a1a3f60] ofonod(+0xd5ff4)[0x558a1a3ff4] linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f9cfa36c0] ofonod(+0x3b614)[0x558a109614] ofonod(ofono_modem_set_powered+0xe8)[0x558a1a6b18] ofonod(+0x38548)[0x558a106548] ofonod(+0x39548)[0x558a107548] /usr/lib64/libglib-2.0.so.0(g_main_context_dispatch+0x114)[0x7f9ce8eed4] ofonod[2835]: ++++++++++++++++++++++++++++++++++++++++ Can some one help me what is missing and how can I resolve the issue ? -Best Regards, Rohit Agrawal