On 28.06.19 16:37, Vitaly Andrianov wrote:
On 06/28/2019 10:07 AM, Jan Kiszka wrote:
On 28.06.19 15:50, Vitaly Andrianov wrote:
Jan,
I was able to get almost everything working on AM572 IDK, but had to move to
a new compiler:
arm-linux-gnueabihf-gcc (GNU Toolchain for the A-profile Architecture
8.3-2019.03 (arm-rel-8.36)) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Now I'm getting errors:
CC
/home/<username>/GIT_REPS/jailhouse/hypervisor/arch/arm/../arm-common/setup.o
CC
/home/<username>/GIT_REPS/jailhouse/hypervisor/arch/arm/../arm-common/smccc.o
/tmp/ccm9f2Kw.s: Assembler messages:
/tmp/ccm9f2Kw.s:52: Error: selected processor does not support `smc #0' in
ARM mode
/tmp/ccm9f2Kw.s:82: Error: selected processor does not support `smc #0' in
ARM mode
/tmp/ccm9f2Kw.s:109: Error: selected processor does not support `smc #0' in
ARM mode
/tmp/ccm9f2Kw.s:140: Error: selected processor does not support `smc #0' in
ARM mode
/tmp/ccm9f2Kw.s:170: Error: selected processor does not support `smc #0' in
ARM mode
scripts/Makefile.build:303: recipe for target
'/home/a0794637/GIT_REPS/jailhouse/hypervisor/arch/arm/../arm-common/smccc.o'
failed
make[4]: ***
[/home/<username>/GIT_REPS/jailhouse/hypervisor/arch/arm/../arm-common/smccc.o]
Error 1
scripts/Makefile.build:544: recipe for target
'/home/<username>/GIT_REPS/jailhouse/hypervisor/arch/arm' failed
I guess the new toolchain requires to pass additional "arch_extension"
options to assembler.
If I add asm(".arch_extension sec\n"); before each asm line in the smccc.c
that works, but I'm getting errors at other places missing "virt" extension.
I don't believe I need to edit each source file, It must be a way to add the
required options to makefiles.
Do you know how to fix that issue?
The original idea was to have that extension enabled by just including
hypervisor/arch/arm/include/asm/smc.h which contains that statement. Seems we
lose that with this compiler version. Or we rather need it in the asm blocks
that define smc() and smc_arg1().
Yes adding the extension to each block helped. After that we have errors for
each macro in the sysregs.h
OK, this doesn't scale. I guess we need to study how the kernel does that...
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
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