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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-02-28 23:45:56 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-02-28 23:45:56 +0000 |
commit | 129dd27cc4deb042d2f88c65927adc49c338756d (patch) | |
tree | 265b6617c9f2281815f2c2120a571fb98ce7c883 /nuttx/arch/README.txt | |
parent | cbade4e74a17aa881e8031b6785657d7166dd819 (diff) | |
download | px4-nuttx-129dd27cc4deb042d2f88c65927adc49c338756d.tar.gz px4-nuttx-129dd27cc4deb042d2f88c65927adc49c338756d.tar.bz2 px4-nuttx-129dd27cc4deb042d2f88c65927adc49c338756d.zip |
Still working toward clean 8051 link
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@25 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/README.txt')
-rw-r--r-- | nuttx/arch/README.txt | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/nuttx/arch/README.txt b/nuttx/arch/README.txt index bdc353cbb..e10393c9f 100644 --- a/nuttx/arch/README.txt +++ b/nuttx/arch/README.txt @@ -62,7 +62,7 @@ defconfig -- This is a configuration file similar to the Linux General OS setup - CONFIG_EXAMPLE - identifies the subdirectgory in examples + CONFIG_EXAMPLE - identifies the subdirectory in examples that will be used in the build CONFIG_DEBUG - enables built-in debug options CONFIG_DEBUG_VERBOSE - enables verbose debug output @@ -82,7 +82,21 @@ defconfig -- This is a configuration file similar to the Linux CONFIG_DEV_CONSOLE - Set if architecture-specific logic provides /dev/console. Enables stdout, stderr, stdin. - Allow for artchitecture optimized implementations + The following can be used to disable categories of APIs supported + by the OS. If the compiler supports weak functions, then it + should not be necessary to disable functions unless you want to + restrict usage of those APIs. + + There are certain dependency relationships in these features. + + o mq_notify logic depends on signals to awaken tasks + waiting for queues to become full or empty. + o pthread_condtimedwait() depends on signals to wake + up waiting tasks. + + CONFIG_DISABLE_SIGNALS, CONFIG_DISABLE_MQUEUE + + Allow for architecture optimized implementations The architecture can provide optimized versions of the following to improve sysem performance |