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armv8.1-m: Remove portHAS_PACBTI_FEATURE macro (#1192)

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The PACBTI is an optional hardware security feature,
the current implementation assumes that every SoC that
has Armv8.1-M architecture extension, has the PACBTI
hardware feature, which does not have to be the case.
Hence, the `portHAS_PACBTI_FEATURE` is removed
and the implementation is modified to rely on
`configENABLE_PAC` and `configENABLE_BTI` macros
that can either be set using CMake or FreeRTOSConfig.h
header file.

Enabling PAC and/or BTI on a port variant that
doesn't have the PACBTI hardware feature would be
caught by a `configASSERT` statement.

Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com>
Co-authored-by: Tony Josi <tonyjosi@amazon.com>
This commit is contained in:
Ahmed Ismail 2024-11-14 04:31:06 +00:00 • committed by GitHub
parent 73f6e3a1b4
commit 25f9222fed
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56 changed files with 257 additions and 445 deletions
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12
include/FreeRTOS.h
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@ -3034,14 +3034,12 @@
/* Set configENABLE_PAC and/or configENABLE_BTI to 1 to enable PAC and/or BTI
* support and 0 to disable them. These are currently used in ARMv8.1-M ports. */
#if ( portHAS_PACBTI_FEATURE == 1 )
#ifndef configENABLE_PAC
#define configENABLE_PAC 0
#endif
#ifndef configENABLE_PAC
#define configENABLE_PAC 0
#endif
#ifndef configENABLE_BTI
#define configENABLE_BTI 0
#endif
#ifndef configENABLE_BTI
#define configENABLE_BTI 0
#endif
/* Sometimes the FreeRTOSConfig.h settings only allow a task to be created using