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Correct mispellings of pseudo. Update some comments in signal.h.

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This commit is contained in:
Gregory Nutt
2018-09-05 11:56:14 -06:00
parent 9348f600ee
commit 33e3fb7a70
6 changed files with 38 additions and 27 deletions
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include/signal.h
+27 -16
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@@ -68,39 +68,42 @@
#define SIGRTMIN MIN_SIGNO /* First real time signal */
#define SIGRTMAX MAX_SIGNO /* Last real time signal */
/* NuttX does not support standard signal actions. NuttX supports only what
/* NuttX does not support all standard signal actions. NuttX supports what
* are referred to as "real time" signals. The default action of all NuttX
* signals is to simply ignore the signal.
* signals is to simply ignore the signal. Certain signals can be
* configured to support there default actions as indicated by NOTEs to the
* following table.
*
* This is not POSIX compliant. Per OpenGroup.org: The following signals
* and default signal action s must be supported on all implementations:
* This is not POSIX compliant behavior! Per OpenGroup.org: The following
* signals and default signal action s must be supported on all
* implementations:
*
* ---------- ------- ----------------------------------------------------
* Signal Default Description
* Name Action
* ---------- ------- ----------------------------------------------------
* SIGABRT A Process abort signal
* SIGALRM T Alarm clock
* SIGALRM T (1) Alarm clock
* SIGBUS A Access to an undefined portion of a memory object
* SIGCHLD I Child process terminated, stopped
* (or continued XSI extension)
* SIGCONT C Continue executing, if stopped
* SIGCONT C (2) Continue executing, if stopped
* SIGFPE A Erroneous arithmetic operation
* SIGHUP T Hangup
* SIGILL A Illegal instruction
* SIGINT T Terminal interrupt signal
* SIGKILL T Kill (cannot be caught or ignored)
* SIGINT T (3) Terminal interrupt signal
* SIGKILL T (3) Kill (cannot be caught or ignored)
* SIGPIPE T Write on a pipe with no one to read it
* SIGQUIT A Terminal quit signal
* SIGSEGV A Invalid memory reference
* SIGSTOP S Stop executing (cannot be caught or ignored)
* SIGSTOP S (2) Stop executing (cannot be caught or ignored)
* SIGTERM T Termination signal
* SIGTSTP S Terminal stop signal
* SIGTSTP S (2) Terminal stop signal
* SIGTTIN S Background process attempting read
* SIGTTOU S Background process attempting write
* SIGUSR1 T User-defined signal 1
* SIGUSR2 T User-defined signal 2
* SIGPOLL T Poll-able event (XSI extension)
* SIGUSR1 T (4) User-defined signal 1
* SIGUSR2 T (5) User-defined signal 2
* SIGPOLL T (6) Poll-able event (XSI extension)
* SIGPROF T Profiling timer expired (XSI extension)
* SIGSYS A Bad system call (XSI extension)
* SIGTRAP A Trace/breakpoint trap (XSI extension)
@@ -112,21 +115,29 @@
*
* Where default action codes are:
*
* T Abnormal termination of the process. The process is terminated with
* T Abnormal termination of the process. The process is terminated with
* all the consequences of _exit() except that the status made available
* to wait() and waitpid() indicates abnormal termination by the
* specified signal.
* A Abnormal termination of the process. Additionally with the XSI
* A Abnormal termination of the process. Additionally with the XSI
* extension, implementation-defined abnormal termination actions, such
* as creation of a core file, may occur.
* I Ignore the signal.
* S Stop the process.
* C Continue the process, if it is stopped; otherwise, ignore the signal.
*
* NOTES:
* (1) The default action can be enabled with CONFIG_SIG_SIGALRM_ACTION
* (2) The default action can be enabled with CONFIG_SIG_SIGSTOP_ACTION
* (3) The default action can be enabled with CONFIG_SIG_SIGKILL_ACTION
* (4) The default action can be enabled with CONFIG_SIG_SIGUSR1_ACTION
* (5) The default action can be enabled with CONFIG_SIG_SIGUSR2_ACTION
* (6) The default action can be enabled with CONFIG_SIG_SIGPOLL_ACTION
*/
/* A few of the real time signals are used within the OS. They have
* default values that can be overridden from the configuration file. The
* rest are all user signals.
* rest are all standard or user real-time signals.
*
* The signal number zero is wasted for the most part. It is a valid
* signal number, but has special meaning at many interfaces (e.g., Kill()).