Jan Kiszka <jan.kis...@siemens.com> writes:
> On 08.08.21 19:21, Philippe Gerum wrote: >> >> Jan Kiszka <jan.kis...@siemens.com> writes: >> >>> On 07.08.21 19:00, Philippe Gerum wrote: >>>> >>>> Jan Kiszka <jan.kis...@siemens.com> writes: >>>> >>>>> Hi all, >>>>> >>>>> just wanted to debug the RTnet issues we now see in CI on arm and arm64. >>>>> I picked arm as first target, but that apparently starts to break with >>>>> gcc-9 or newer (tried 9.2 and 10.2): >>>>> >>>>> make[5]: Entering directory '/xenomai/lib/cobalt/arch/arm' >>>>> CC libarch_la-features.lo >>>>> features.c: In function 'cobalt_arch_check_features': >>>>> features.c:82:1: error: r7 cannot be used in 'asm' here >>>>> 82 | } >>>>> | ^ >>>>> >>>>> That seems to be related to passing the syscall number via r7 on ARM. Is >>>>> our ABI soon no longer compilable, or can we fix this? >>>>> >>>> >>>> Just tried to reproduce this issue with the latest stable (10.3-2021.07) >>>> from ARM [1], and a fairly recent linaro snapshot (11.0.1-2021.03) [2], >>>> to no avail. I tried with --enable-debug=symbols, --disable-debug, >>>> --enable-debug=full, no issue so far. >>>> >>>> Can you please share you configure settings? >>> >>> I'm on ARM gcc 10.3-2021.07 as well. Debian's gcc from bullseye show >>> this, too. >>> >>> ./configure --host=arm-none-linux-gnueabihf --enable-debug=full >>> >>> on master. And that results in >>> >>> CC libarch_la-features.lo >>> ../../../../../lib/cobalt/arch/arm/features.c: In function >>> ‘cobalt_arch_check_features’: >>> ../../../../../lib/cobalt/arch/arm/features.c:82:1: error: r7 cannot be >>> used in ‘asm’ here >>> 82 | } >>> | ^ >>> >> >> Confirmed, found it. next is fine with this compiler, which is the >> version I tested. However, building stable and master does break. >> > > Yeah, I've already pushed the two related fixes into next for testing. > Can still be changed if we find a better solution. > Ack. -- Philippe.
