On Tue, May 7, 2019 at 5:03 AM Peter Dufault <dufa...@hda.com> wrote: > > What is best practice to change build behavior? e.g. I need to use > --whole-archive/--no-whole-archive in one place but --gc-sections breaks it > and that's turned on for the BSP (xilinx_zynq_a9_qemu). > > I’ve done this in the .cfg files for the BSP: > > ifneq ($(RTEMS_GC_SECTIONS_DISABLE),1) > LDFLAGS_GC_SECTIONS_DISABLE = -Wl,--gc-sections > endif > > (...) > > LDFLAGS = $(LDFLAGS_GC_SECTIONS_DISABLE) > > and then I set RTEMS_GC_SECTIONS_DISABLE=1 in the one Makefile where I need > it. I don’t see similar patterns, is this the way to do it? >
Historically a new BSP variant has been introduced when there needs to be a change at this .cfg level. But, I could see a rationale to include this kind of switching behavior at a higher level. Someone might consider how to integrate it into our configure.ac/Makefile.am black magic, but that is beyond me :). An alternative approach that may work from what you propose is to use following in the xilinx zynq .cfg file: LDFLAGS ?= -Wl, --gc-sections then, you can provide own LDFLAGS = -Wl on your make command line or in your Makefile, I think that would work bit more elegant > Peter > ----------------- > Peter Dufault > HD Associates, Inc. Software and System Engineering > > This email is delivered through the public internet using protocols subject > to interception and tampering. > > _______________________________________________ > devel mailing list > devel@rtems.org > http://lists.rtems.org/mailman/listinfo/devel _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
