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author | Chris Johns <chrisj@rtems.org> | 2017-12-23 18:18:56 +1100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-01-25 08:45:26 +0100 |
commit | 2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch) | |
tree | 44759efe9374f13200a97e96d91bd9a2b7e5ce2a /cpukit/include/rtems/score/profiling.h | |
parent | MAINTAINERS: Add myself to Write After Approval. (diff) | |
download | rtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2 |
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
Diffstat (limited to 'cpukit/include/rtems/score/profiling.h')
-rw-r--r-- | cpukit/include/rtems/score/profiling.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/profiling.h b/cpukit/include/rtems/score/profiling.h new file mode 100644 index 0000000000..6ba5d2987f --- /dev/null +++ b/cpukit/include/rtems/score/profiling.h @@ -0,0 +1,140 @@ +/** + * @file + * + * @ingroup ScoreProfiling + * + * @brief Profiling Support API + */ + +/* + * Copyright (c) 2014 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Dornierstr. 4 + * 82178 Puchheim + * Germany + * <rtems@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef _RTEMS_SCORE_PROFILING +#define _RTEMS_SCORE_PROFILING + +#include <rtems/score/percpu.h> +#include <rtems/score/isrlock.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/** + * @defgroup ScoreProfiling Profiling Support + * + * @brief Profiling support. + * + * @{ + */ + +static inline void _Profiling_Thread_dispatch_disable( + Per_CPU_Control *cpu, + uint32_t previous_thread_dispatch_disable_level +) +{ +#if defined( RTEMS_PROFILING ) + if ( previous_thread_dispatch_disable_level == 0 ) { + Per_CPU_Stats *stats = &cpu->Stats; + + stats->thread_dispatch_disabled_instant = _CPU_Counter_read(); + ++stats->thread_dispatch_disabled_count; + } +#else + (void) cpu; + (void) previous_thread_dispatch_disable_level; +#endif +} + +static inline void _Profiling_Thread_dispatch_disable_critical( + Per_CPU_Control *cpu, + uint32_t previous_thread_dispatch_disable_level, + const ISR_lock_Context *lock_context +) +{ +#if defined( RTEMS_PROFILING ) + if ( previous_thread_dispatch_disable_level == 0 ) { + Per_CPU_Stats *stats = &cpu->Stats; + + stats->thread_dispatch_disabled_instant = lock_context->ISR_disable_instant; + ++stats->thread_dispatch_disabled_count; + } +#else + (void) cpu; + (void) previous_thread_dispatch_disable_level; + (void) lock_context; +#endif +} + +static inline void _Profiling_Thread_dispatch_enable( + Per_CPU_Control *cpu, + uint32_t new_thread_dispatch_disable_level +) +{ +#if defined( RTEMS_PROFILING ) + if ( new_thread_dispatch_disable_level == 0 ) { + Per_CPU_Stats *stats = &cpu->Stats; + CPU_Counter_ticks now = _CPU_Counter_read(); + CPU_Counter_ticks delta = _CPU_Counter_difference( + now, + stats->thread_dispatch_disabled_instant + ); + + stats->total_thread_dispatch_disabled_time += delta; + + if ( stats->max_thread_dispatch_disabled_time < delta ) { + stats->max_thread_dispatch_disabled_time = delta; + } + } +#else + (void) cpu; + (void) new_thread_dispatch_disable_level; +#endif +} + +static inline void _Profiling_Update_max_interrupt_delay( + Per_CPU_Control *cpu, + CPU_Counter_ticks interrupt_delay +) +{ +#if defined( RTEMS_PROFILING ) + Per_CPU_Stats *stats = &cpu->Stats; + + if ( stats->max_interrupt_delay < interrupt_delay ) { + stats->max_interrupt_delay = interrupt_delay; + } +#else + (void) cpu; + (void) interrupt_delay; +#endif +} + +/** + * @brief Updates the interrupt profiling statistics. + * + * Must be called with the interrupt stack and before the thread dispatch + * disable level is decremented. + */ +void _Profiling_Outer_most_interrupt_entry_and_exit( + Per_CPU_Control *cpu, + CPU_Counter_ticks interrupt_entry_instant, + CPU_Counter_ticks interrupt_exit_instant +); + +/** @} */ + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* _RTEMS_SCORE_PROFILING */ |