forked from Imagelibrary/rtems
c331bdc777
Directly use the CPU port API in boot_card() to allow tracing of the higher level interrupt disable/enable routines, e.g. _ISR_Local_disable() and _ISR_Local_enable(). Currently, there is no configuration option to enable this. Below is a patch. It may be used to investigate some nasty low level bugs in the system. Update #3665. diff --git a/cpukit/include/rtems/score/isrlevel.h b/cpukit/include/rtems/score/isrlevel.h index c42451d010..46d361ddc2 100644 --- a/cpukit/include/rtems/score/isrlevel.h +++ b/cpukit/include/rtems/score/isrlevel.h @@ -40,6 +40,10 @@ extern "C" { */ typedef uint32_t ISR_Level; +uint32_t rtems_record_interrupt_disable( void ); + +void rtems_record_interrupt_enable( uint32_t level ); + /** * @brief Disables interrupts on this processor. * @@ -56,8 +60,7 @@ typedef uint32_t ISR_Level; */ #define _ISR_Local_disable( _level ) \ do { \ - _CPU_ISR_Disable( _level ); \ - RTEMS_COMPILER_MEMORY_BARRIER(); \ + _level = rtems_record_interrupt_disable(); \ } while (0) /** @@ -72,10 +75,7 @@ typedef uint32_t ISR_Level; * _ISR_Local_disable(). */ #define _ISR_Local_enable( _level ) \ - do { \ - RTEMS_COMPILER_MEMORY_BARRIER(); \ - _CPU_ISR_Enable( _level ); \ - } while (0) + rtems_record_interrupt_enable( _level ) /** * @brief Temporarily enables interrupts on this processor. @@ -98,9 +98,8 @@ typedef uint32_t ISR_Level; */ #define _ISR_Local_flash( _level ) \ do { \ - RTEMS_COMPILER_MEMORY_BARRIER(); \ - _CPU_ISR_Flash( _level ); \ - RTEMS_COMPILER_MEMORY_BARRIER(); \ + rtems_record_interrupt_enable( _level ); \ + _level = rtems_record_interrupt_disable(); \ } while (0) /
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/**
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* @file
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*
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* @ingroup RTEMSBSPsSharedStartup
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*/
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/*
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* COPYRIGHT (c) 1989-2014.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <bsp/bootcard.h>
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#include <rtems.h>
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#include <rtems/sysinit.h>
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/*
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* At most a single pointer to the cmdline for those target
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* short on memory and not supporting a command line.
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*/
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const char *bsp_boot_cmdline;
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RTEMS_SYSINIT_ITEM(
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bsp_work_area_initialize,
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RTEMS_SYSINIT_BSP_WORK_AREAS,
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RTEMS_SYSINIT_ORDER_MIDDLE
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);
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RTEMS_SYSINIT_ITEM(
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bsp_start,
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RTEMS_SYSINIT_BSP_START,
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RTEMS_SYSINIT_ORDER_MIDDLE
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);
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/*
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* This is the initialization framework routine that weaves together
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* calls to RTEMS and the BSP in the proper sequence to initialize
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* the system while maximizing shared code and keeping BSP code in C
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* as much as possible.
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*/
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void boot_card(
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const char *cmdline
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)
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{
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ISR_Level bsp_isr_level;
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/*
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* Make sure interrupts are disabled. Directly use the CPU port API to allow
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* tracing of the higher level interrupt disable/enable routines, e.g.
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* _ISR_Local_disable() and _ISR_Local_enable().
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*/
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_CPU_ISR_Disable( bsp_isr_level );
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(void) bsp_isr_level;
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bsp_boot_cmdline = cmdline;
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rtems_initialize_executive();
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/***************************************************************
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***************************************************************
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* APPLICATION RUNS NOW!!! We will not return to here!!! *
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***************************************************************
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***************************************************************/
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}
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