On Tue, Apr 15 2025, Philippe Mathieu-Daudé <phi...@linaro.org> wrote:
> On 14/4/25 18:38, Cornelia Huck wrote:
>> From: Eric Auger <eric.au...@redhat.com>
>>
>> Introduce a script that automates the generation of system register
>> properties definitions from a given linux source tree
>> arch/arm64/tools/sysreg.
>>
>> Invocation of
>> ./update-aarch64-sysreg-code.sh $PATH_TO_LINUX_SOURCE_TREE
>> in scripts directory additionally generates
>> target/arm/cpu-sysreg-properties.c containing definitions for
>> feature ID registers.
>>
>> update-aarch64-sysreg-code.sh additionally calls
>> gen-cpu-sysreg-properties.awk which is inherited from kernel
>> arch/arm64/tools/gen-sysreg.awk. All credits to Mark Rutland
>> the original author of this script.
>>
>> [CH: split off from original patch adding both sysreg definitions
>> and properties]
>> Signed-off-by: Eric Auger <eric.au...@redhat.com>
>> Signed-off-by: Cornelia Huck <coh...@redhat.com>
>> ---
>> scripts/gen-cpu-sysreg-properties.awk | 325 ++++++++++++++++++++++++++
>> scripts/update-aarch64-sysreg-code.sh | 5 +-
>> 2 files changed, 329 insertions(+), 1 deletion(-)
>> create mode 100755 scripts/gen-cpu-sysreg-properties.awk
>>
>> diff --git a/scripts/gen-cpu-sysreg-properties.awk
>> b/scripts/gen-cpu-sysreg-properties.awk
>> new file mode 100755
>> index 000000000000..76c37938b168
>> --- /dev/null
>> +++ b/scripts/gen-cpu-sysreg-properties.awk
>> @@ -0,0 +1,325 @@
>> +#!/bin/awk -f
>> +# SPDX-License-Identifier: GPL-2.0
>> +# gen-cpu-sysreg-properties.awk: arm64 sysreg header generator
>> +#
>> +# Usage: awk -f gen-cpu-sysreg-properties.awk
>> $LINUX_PATH/arch/arm64/tools/sysreg
>
>
>> +BEGIN {
>
> print "/* AUTOMATICALLY GENERATED, DO NOT MODIFY */\n"
Makes sense.
>
> Should we keep copyright?
GPL-2.0-or-later, I guess?
>
>> + print "#include \"cpu-custom.h\""
>> + print ""
>> + print "ARM64SysReg arm64_id_regs[NUM_ID_IDX];"
>> + print ""
>> + print "void initialize_cpu_sysreg_properties(void)"
>> + print "{"
>> + print " memset(arm64_id_regs, 0, sizeof(ARM64SysReg) *
>> NUM_ID_IDX);"
>> + print ""
>> +
>> + __current_block_depth = 0
>> + __current_block[__current_block_depth] = "Root"
>> +}
