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Add code to allow building for x64 in MSVC (#924)

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* Add code to allow building for x64 in MSVC

- Add code for x64 arch.
- Add initial value for local otherwise it won't get proper value in x64.

* Moving init local to portGET_HIGHEST_PRIORITY

- From code review.

* More changes following review

* Another style fix from review

* Update formatting

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

---------

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
Co-authored-by: Gaurav-Aggarwal-AWS <33462878+aggarg@users.noreply.github.com>
Co-authored-by: Nikhil Kamath <110539926+amazonKamath@users.noreply.github.com>
Co-authored-by: Soren Ptak <ptaksoren@gmail.com>
Co-authored-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
José Simões 2024-01-29 06:35:10 +00:00 committed by GitHub
parent 1860c9ad09
commit 722596eaae
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GPG Key ID: B5690EEEBB952194
1 changed files with 33 additions and 15 deletions
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48
portable/MSVC-MingW/portmacro.h
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@ -121,32 +121,50 @@ void vPortExitCritical( void );
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#endif
/*-----------------------------------------------------------*/
#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
/* Check the configuration. */
/* Check the configuration. */
#if ( configMAX_PRIORITIES > 32 )
#error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.
#endif
/* Store/clear the ready priorities in a bit map. */
#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
/*-----------------------------------------------------------*/
/* Store/clear the ready priorities in a bit map. */
#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( ( ( UBaseType_t ) 1 ) << ( uxPriority ) )
#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( ( ( UBaseType_t ) 1 ) << ( uxPriority ) )
#ifdef __GNUC__
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) \
__asm volatile ( "bsr %1, %0\n\t" \
: "=r" ( uxTopPriority ) : "rm" ( uxReadyPriorities ) : "cc" )
#else
/* BitScanReverse returns the bit position of the most significant '1'
* in the word. */
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) _BitScanReverse( ( DWORD * ) &( uxTopPriority ), ( uxReadyPriorities ) )
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) \
__asm volatile ( "bsr %1, %0\n\t" \
: "=r" ( uxTopPriority ) \
: "rm" ( uxReadyPriorities ) \
: "cc" )
#else /* __GNUC__ */
/* BitScanReverse returns the bit position of the most significant '1'
* in the word. */
#if defined( __x86_64__ ) || defined( _M_X64 )
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) \
do \
{ \
DWORD ulTopPriority; \
_BitScanReverse64( &ulTopPriority, ( uxReadyPriorities ) ); \
uxTopPriority = ulTopPriority; \
} while( 0 )
#else /* #if defined( __x86_64__ ) || defined( _M_X64 ) */
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) _BitScanReverse( ( DWORD * ) &( uxTopPriority ), ( uxReadyPriorities ) )
#endif /* #if defined( __x86_64__ ) || defined( _M_X64 ) */
#endif /* __GNUC__ */
#endif /* taskRECORD_READY_PRIORITY */
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
#ifndef __GNUC__
__pragma( warning( disable:4211 ) ) /* Nonstandard extension used, as extern is only nonstandard to MSVC. */