feat(libc): add __2snprintf alias for armclang-specific name mangling

The Arm Compiler (armclang) toolchain replaces standard library calls
like `snprintf` with renamed versions such as `__2snprintf

feat(libc): add __2snprintf alias for armclang-specific name mangling

The Arm Compiler (armclang) toolchain replaces standard library calls
like `snprintf` with renamed versions such as `__2snprintf` in
generated object files and binaries. This name mangling is part of
armclang’s internal handling of standard functions and can lead to
undefined reference errors if these symbols are not defined.

To resolve this, this patch introduces a new assembly stub for
`__2snprintf` in AArch64-specific implementation.
This stub is a minimal alias that branch directly to the
underlying `snprintf` implementation. This mirrors the existing
solution for `__0printf`, `__1printf`, and `__2printf` aliases that
redirect to `printf`.

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: Id64d490fc3ff19ae619af03279f30338e8aa8bba

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fix(cpufeat): replace "bti" mnemonic with hint instructions

Older GNU binutils version require to specify at least "armv8.5-a" for
the ARM architecture revision to accept "bti" instructions in the
a

fix(cpufeat): replace "bti" mnemonic with hint instructions

Older GNU binutils version require to specify at least "armv8.5-a" for
the ARM architecture revision to accept "bti" instructions in the
assembly code. Binutils v2.35 have relaxed this, since "bti" is in the
hint space, so is ignored on older cores and does NOT require a BTI
enabled core to execute.

To not exclude those older binutils versions (as shipped with Ubuntu
20.04), use the "hint" encoding for the "bti" instructions, which are
accepted regardless of the minimum architecture revision. Hide this
encoding in a macro, to make the "bti" usage more readable in the
source code.

Change-Id: I005586efd8974a3f2c7202896c881bb5fed07eea
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

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fix(plat): remove unused vfp code

The code is never referenced, the build flag is never defined and some
of the #defines are missing. Remove.

Change-Id: I44caae52f9b7503363ac553fd1187bbf6c951438
Si

fix(plat): remove unused vfp code

The code is never referenced, the build flag is never defined and some
of the #defines are missing. Remove.

Change-Id: I44caae52f9b7503363ac553fd1187bbf6c951438
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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feat(gpt): add support for large GPT mappings

This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_

feat(gpt): add support for large GPT mappings

This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_MAX_BLOCK
build parameter and takes values 0, 2, 32 and 512 and
by default set to 2 in make_helpers/defaults.mk.
Setting RME_GPT_MAX_BLOCK value to 0 disables use of
Contiguous descriptors.
Function gpt_tlbi_by_pa_ll() and its declaration
are removed from lib/aarch64/misc_helpers.S and
include/arch/aarch64/arch_helpers.h, because the
GPT library now uses tlbirpalos_xxx() functions.

Change-Id: Ia9a59bde1741c5666b4ca1de9324e6dfd6f734eb
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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fix(gpt): use DC CIGDPAPA when MTE2 is implemented

Use cache clean and invalidate of data and allocation tags by PA to PoPA
maintenance instruction (dc cigdpapa) in the GPT library upon changing
the

fix(gpt): use DC CIGDPAPA when MTE2 is implemented

Use cache clean and invalidate of data and allocation tags by PA to PoPA
maintenance instruction (dc cigdpapa) in the GPT library upon changing
the PAS for a memory region. This is required to flush allocation tags
when MTE2 (and above) is implemented.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I4b70afb297f693b1d446839607922c47111ce063

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chore: update to use Arm word across TF-A

Align entire TF-A to use Arm in copyright header.

Change-Id: Ief9992169efdab61d0da6bd8c5180de7a4bc2244
Signed-off-by: Govindraj Raja <govindraj.raja@arm.co

chore: update to use Arm word across TF-A

Align entire TF-A to use Arm in copyright header.

Change-Id: Ief9992169efdab61d0da6bd8c5180de7a4bc2244
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>

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