diff options
Diffstat (limited to 'nuttx/configs')
| -rw-r--r-- | nuttx/configs/README.txt | 8 | ||||
| -rw-r--r-- | nuttx/configs/sim/ostest/defconfig | 10 |
2 files changed, 17 insertions, 1 deletions
diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt index cfd20b3b9..e6b656dc8 100644 --- a/nuttx/configs/README.txt +++ b/nuttx/configs/README.txt @@ -199,6 +199,14 @@ defconfig -- This is a configuration file similar to the Linux errorcheck mutexes. Enables pthread_mutexattr_settype(). CONFIG_PRIORITY_INHERITANCE - Set to enable support for priority inheritance on mutexes and semaphores. + CONFIG_SEM_PREALLOCHOLDERS: This setting is only used if priority + inheritance is enabled. It defines the maximum number of + different threads (minus one) that can take counts on a + semaphore with priority inheritance support. This may be + set to zero if priority inheritance is disabled OR if you + are only using semaphores as mutexes (only one holder) OR + if no more than two threads participate using a counting + semaphore. The following can be used to disable categories of APIs supported by the OS. If the compiler supports weak functions, then it diff --git a/nuttx/configs/sim/ostest/defconfig b/nuttx/configs/sim/ostest/defconfig index e9beee06b..32823d716 100644 --- a/nuttx/configs/sim/ostest/defconfig +++ b/nuttx/configs/sim/ostest/defconfig @@ -85,7 +85,14 @@ CONFIG_ARCH_BOARD_SIM=y # CONFIG_MUTEX_TYPES: Set to enable support for recursive and # errorcheck mutexes. Enables pthread_mutexattr_settype(). # CONFIG_PRIORITY_INHERITANCE : Set to enable support for priority -# inheritance on mutexes and semaphores. +# inheritance on mutexes and semaphores. +# CONFIG_SEM_PREALLOCHOLDERS: This setting is only used if priority +# inheritance is enabled. It defines the maximum number of different +# threads (minus one) that can take counts on a semaphore with priority +# inheritance support. This may be set to zero if priority inheritance +# is disabled OR if you are only using semaphores as mutexes (only +# one holder) OR if no more than two threads participate using a +# counting semaphore. # CONFIG_EXAMPLE=ostest CONFIG_DEBUG=y @@ -103,6 +110,7 @@ CONFIG_DEV_CONSOLE=y CONFIG_DEV_LOWCONSOLE=n CONFIG_MUTEX_TYPES=y CONFIG_PRIORITY_INHERITANCE=n +CONFIG_SEM_PREALLOCHOLDERS=3 # # The following can be used to disable categories of |