Hi Fotis, I'm using Ubuntu 20.04 and I can confirm it is working fine, I don't need to add -fPIC.
Please try a clear repository, I will do it here step-by-step on /tmp to removed after next reboot: $ cd /tmp/ $ git clone https://github.com/apache/incubator-nuttx nuttx $ git clone https://github.com/apache/incubator-nuttx-apps apps $ cd nuttx/ $ make -C tools -f Makefile.host all $ ls -l tools/jlink* -rwxrwxr-x 1 alan alan 17144 jun 23 11:02 tools/jlink-nuttx -rw-rw-r-- 1 alan alan 16804 jun 23 11:01 tools/jlink-nuttx.c I didn't test it with JLinkGDBServer, but at least I can tell you it is compiling fine. BR, Alan On 6/23/22, Fotis Panagiotopoulos <f.j.pa...@gmail.com> wrote: >> Ahhh, so it is your Fedora 36 issue, hahaha > > No, it is not. > > I just tried on Ubuntu 18, and I got the exact same result. > > Build fails with the same error. I added the -fPIC flag, and the build > succeeded. > Then I tried to debug the firmware with JLink and GDB crashes during init > with a SEGFAULT. > > Just like on Fedora. > > So I guess, this is a problem with the plug-in itself? > > Those that have managed to use the plug-in successfully, what is the > version of JLinkGDBServer ? > Mine is V7.54c. > > > > > > > > > On Thu, Jun 23, 2022 at 1:50 AM Alan Carvalho de Assis <acas...@gmail.com> > wrote: > >> Ahhh, so it is your Fedora 36 issue, hahaha >> >> Here on Ubuntu "make -C tools -f Makefile.host all" works fine. >> >> It created the jlink-nuttx.so file. >> >> BR, >> >> Alan >> >> On 6/22/22, Fotis Panagiotopoulos <f.j.pa...@gmail.com> wrote: >> > Yes I enabled CONFIG_DEBUG_TCBINFO. >> > (When disabled, debugging works normally but without being >> > thread-aware). >> > >> > It seems that it is either a bug in the plugin itself, or something is >> > wrong with my build. >> > >> > If it matters, I am using Fedora 36 with gcc (GCC) 12.1.1 20220507 (Red >> Hat >> > 12.1.1-1) >> > >> > Maybe someone can provide me with a pre-build .so file to test if this >> > is >> > the cause? >> > >> > >> > >> > >> > On Wed, Jun 22, 2022 at 10:30 PM Xiang Xiao <xiaoxiang781...@gmail.com> >> > wrote: >> > >> >> Did you enable CONFIG_DEBUG_TCBINFO in your defconfig: >> >> incubator-nuttx/Kconfig at master ยท apache/incubator-nuttx >> >> (github.com) >> >> < >> https://github.com/apache/incubator-nuttx/blob/master/Kconfig#L1857-L1863 >> >> > >> >> The plugin needs the g_tcbinfo to know the critical offset of the >> >> field >> >> in >> >> tcb_s structure. >> >> >> >> On Thu, Jun 23, 2022 at 2:10 AM Fotis Panagiotopoulos >> >> <f.j.pa...@gmail.com >> >> > >> >> wrote: >> >> >> >> > Hello, >> >> > >> >> > I am in need of debugging NuttX in a thread-aware fashion, as I >> >> > still >> >> hit a >> >> > dead-lock in networking that I haven't managed to track down yet. >> >> > >> >> > I am using a custom target, based on the STM32F427VI and JLink as >> >> > the >> >> > debugger. >> >> > >> >> > I see that there is a plug-in for JLink GDB that was added in #4810. >> >> > Unfortunately, I never got this working. I commented on the PR, but >> >> > I >> >> > got >> >> > ignored. >> >> > >> >> > So: >> >> > >> >> > 1. I cannot build the plug-in. >> >> > Running: >> >> > >> >> > make -C tools -f Makefile.host all >> >> > >> >> > I get: >> >> > >> >> > /usr/bin/ld: /tmp/cclxEqhk.o: relocation R_X86_64_32 against >> >> > `.rodata.str1.8' can not be used when making a shared object; >> recompile >> >> > with -fPIC >> >> > collect2: error: ld returned 1 exit status >> >> > make: *** [Makefile.host:231: jlink-nuttx.so] Error 1 >> >> > >> >> > I added the -fPIC option, and it was built successfully. >> >> > If this is actually the correct option, then I guess the makefile >> >> > has >> >> > to >> >> be >> >> > fixed? >> >> > >> >> > >> >> > 2. After building the plug-in with -fPIC, it crashes during start >> >> > with >> >> > a >> >> > segmentation fault. >> >> > >> >> > Here is an example output: >> >> > https://pastebin.com/U1tqtMND >> >> > >> >> > >> >> > Has anyone managed to use this? >> >> > Any idea what the fault may be? >> >> > >> >> >> > >> >
