On Thu, 30 Jun 2022 00:20:57 -0400 Brian Hutchinson <b.hutchman@xxxxxxxxx> wrote: > Hi, Hi Brian, > > I've been using trace-cmd 2.9.1 from a yocto build but I want to try > out the sql synthetic events ultil and it looks like I need to go to > the latest to get that. > > After reading this: > > https://www.spinics.net/lists//linux-trace-devel/msg08977.html > > .... thanks Steven for rescuing the orphans but I guess I'm a > red-headded step child trying to cross-compile all of this (on Ubuntu > 20.04 machine) for a iMX8MM SoC. And you're right, Makefiles do suck! > Especially ones you didn't write yourself and you try to figure out > what others were trying to do. > > I'm struggling to cross-compile everything. > > I checked out the latest libtraceevent and that cross-compiled ok (I'm > using a sdk I built from Yocto ex: source > /opt/poky.3.1.7/environment-setup-aarch64-poky-linux) but the install > wouldn't work until I used DESTDIR to point the install somewhere > other than Ubuntu directories. > > I checked out libtracefs and it wouldn't build until I fooled around > and set TEST_LIBTRACEEVENT to point specifically to the > libtraceevent.pc file in the directory used in libtraceevent DISTDIR > path I set. > > Once I got past that I started having issues with libtracefs failing > to find include files (event-parse.h, trace-seq.h etc.) that lived in > the libtraceevent repo. I created a symlink for one of them but then > ran into others and gave up figuring I was going about this wrong way > and it was time to admit defeat and just ask how you cross compile > this without building packages for Ubuntu. I haven't tried cross compiling in a while, and do not have a setup to do so at the moment (no cross glibc on my machines). But I do try to make it easier for distros to package these. In the trace-cmd repo, there's a make-trace-cmd.sh[1] script that sets the proper variables. This can also be used on libtraceevent and libtracefs. Perhaps that can work with a cross compile environment too? -- Steve [1] https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/tree/make-trace-cmd.sh
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