Bruce O'Neel wrote:
Hi,
Posix requires that if the process is killed the return status is
greater than 128.
What is convention on linux systems is that if the process is sent a
signal then the signal number is added to 128. Therefore 137 is SIGKILL
(kill -9). SIGTERM is 143, SIGABRT is 134, SIGSEGV is 139, and so on.
I've not seen an exception to this but there could be.
Signals off of my closest linux system look like:
#define SIGHUP 1
#define SIGINT 2
#define SIGQUIT 3
#define SIGILL 4
#define SIGTRAP 5
#define SIGABRT 6
#define SIGIOT 6
#define SIGBUS 7
#define SIGFPE 8
#define SIGKILL 9
#define SIGUSR1 10
#define SIGSEGV 11
#define SIGUSR2 12
#define SIGPIPE 13
#define SIGALRM 14
#define SIGTERM 15
Scary, because Esteban's sigtrapping package has them defined a bit
differently:
{ #category : #'class initialization' }
POSIXSignal class >> initialize [
SIGHUP := 1.
SIGINT := 2.
SIGQUIT := 3.
SIGILL := 4.
SIGTRAP := 5.
SIGABRT := 6.
SIGPOLL := 7.
SIGIOT := SIGABRT.
SIGEMT := 7.
SIGFPE := 8.
SIGKILL := 9.
SIGBUS := 10.
SIGSEGV := 11.
SIGSYS := 12.
SIGPIPE := 13.
SIGALRM := 14.
SIGTERM := 15.
SIGURG := 16.
SIGSTOP := 17.
SIGTSTP := 18.
SIGCONT := 19.
SIGCHLD := 20.
SIGTTIN := 21.
SIGTTOU := 22.
SIGIO := 23.
SIGXCPU := 24.
SIGXFSZ := 25.
SIGVTALRM := 26.
SIGPROF := 27.
SIGWINCH := 28.
SIGINFO := 29.
SIGUSR1 := 30.
SIGUSR2 := 31.
]
