Merge "perf(libc): use builtin implementations where possible" into integration

perf(libc): use builtin implementations where possible

When conditions are right, eg a small memcpy of a known size and
alignment, the compiler may know of a sequence that is optimal for the
given c

perf(libc): use builtin implementations where possible

When conditions are right, eg a small memcpy of a known size and
alignment, the compiler may know of a sequence that is optimal for the
given constraints and inline it. If the compiler doesn't find one, it
will emit a call to the generic function (in the libc) which will
implement this in the most generic and unconstrained manner. That
generic function is rarely the most optimal when constraints are known.

So give the compiler a chance to do this. Replace calls to libc
functions that have builtins to the builtin and keep the generic
implementation if it decides to emit a call anyway.

And example of this in action is usage of FEAT_MOPS. When the compiler
is aware of the feature (-march=armv8.8-a) then it will emit the 3 MOPS
instructions instead of calls to our memcpy() and memset()
implementations.

Change-Id: I9860cfada1d941b613ebd4da068e9992c387952e
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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Merge "feat(lib): implement strnlen secure and strcpy secure function" into integration

feat(lib): implement strnlen secure and strcpy secure function

Implement safer version of 'strnlen' function
to handle NULL terminated strings with additional
bound checking and secure version of st

feat(lib): implement strnlen secure and strcpy secure function

Implement safer version of 'strnlen' function
to handle NULL terminated strings with additional
bound checking and secure version of string copy function
to support better security and avoid destination
buffer overflow.

Change-Id: I93916f003b192c1c6da6a4f78a627c8885db11d9
Signed-off-by: Jit Loon Lim <jit.loon.lim@altera.com>
Signed-off-by: Girisha Dengi <girisha.dengi@intel.com>

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Merge "chore: update to use Arm word across TF-A" into integration

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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Merge "feat(lib): implement memcpy_s in lib" into integration

feat(lib): implement memcpy_s in lib

To support memcpy_s for better security purpose
to avoid overflowing the dest while copy from src.

Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
Change-I

feat(lib): implement memcpy_s in lib

To support memcpy_s for better security purpose
to avoid overflowing the dest while copy from src.

Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
Change-Id: I63c3ea6a3e99c10d69be6bce04843c14b0a28a4d

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Merge "libc: Import strtok_r from FreeBSD project" into integration

libc: Import strtok_r from FreeBSD project

From commit: 21571b1d140ae7bb44e94c0afba2ec61456b275b
Made small changes to fit into TF-A project

Change-Id: I991f653a7ace04f9c84bcda78ad8d7114ea18e93
Sig

libc: Import strtok_r from FreeBSD project

From commit: 21571b1d140ae7bb44e94c0afba2ec61456b275b
Made small changes to fit into TF-A project

Change-Id: I991f653a7ace04f9c84bcda78ad8d7114ea18e93
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>

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Merge "libc: Import strlcat from FreeBSD project" into integration

libc: Import strlcat from FreeBSD project

From commit: 21571b1d140ae7bb44e94c0afba2ec61456b275b
Made small changes to fit into TF-A project

Change-Id: I07fd7fe1037857f6b299c35367c104fb51fa5cfa
Sign

libc: Import strlcat from FreeBSD project

From commit: 21571b1d140ae7bb44e94c0afba2ec61456b275b
Made small changes to fit into TF-A project

Change-Id: I07fd7fe1037857f6b299c35367c104fb51fa5cfa
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>

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Merge "libc: add memrchr" into integration

libc: add memrchr

This function scans a string backwards from the end for the first
instance of a character.

Change-Id: I46b21573ed25a0ff222eac340e1e1fb93b040763
Signed-off-by: Ambroise Vincent <am

libc: add memrchr

This function scans a string backwards from the end for the first
instance of a character.

Change-Id: I46b21573ed25a0ff222eac340e1e1fb93b040763
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

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Merge changes from topic "bs/libc" into integration

* changes:
libc: Consolidate the size_t and NULL definitions
libc: Consolidate unified definitions
libc: Unify intmax_t and uintmax_t on AAr

Merge changes from topic "bs/libc" into integration

* changes:
libc: Consolidate the size_t and NULL definitions
libc: Consolidate unified definitions
libc: Unify intmax_t and uintmax_t on AArch32/64

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libc: Consolidate the size_t and NULL definitions

Consolidate the definition of size_t to one header per AArch, and
the definition of NULL to one header

Signed-off-by: Bence Szépkúti <bence.szepkut

libc: Consolidate the size_t and NULL definitions

Consolidate the definition of size_t to one header per AArch, and
the definition of NULL to one header

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: Iecfbad2cf360cfb705ce7aaa981700fd16219b82

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Merge pull request #1665 from antonio-nino-diaz-arm/an/fdt-helpers

Introduce new fdt helpers

libc: Adapt strlcpy to this codebase

Change-Id: I2f5f64aaf90caae936510e1179392a8835f493e0
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Merge pull request #1643 from antonio-nino-diaz-arm/an/libfdt

Update libfdt to version 1.4.7

libc: Integrate strrchr in libc

Change-Id: I3ddc07cb02d73cd7614af7a5b21827aae155f9a0
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Merge pull request #1528 from antonio-nino-diaz-arm/an/libc

libc: Cleanup library

libc: Cleanup SCC headers

Only leave the parts relevant to the Trusted Firmware.

Change-Id: I0444c16e402f6c1629211d03bf6cb32ca3dbcf59
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

libc: Add AArch32 and AArch64 headers

Change-Id: I4f58bb4660078c9bc76d2826c90b2fa711719a3e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

libc: Introduce files from SCC

Taken from http://git.simple-cc.org/scc/ from the following commit:

67508ad14af314cea2229783d3c084f28c41daf0

Permission has been granted from the author to use them

libc: Introduce files from SCC

Taken from http://git.simple-cc.org/scc/ from the following commit:

67508ad14af314cea2229783d3c084f28c41daf0

Permission has been granted from the author to use them under the
license BSD-3-Clause instead of ISC.

Change-Id: I65c0ce3ab60c49d34a57533af12a74bd7bde88e5
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

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Merge pull request #1510 from robertovargas-arm/romlib

Add support for moving libraries to ROM