man/man7/signal.7: Update definition of SIGCHLD for POSIX.1-2001

This is an XSI extension supported by Linux.

Link: <https://unix.stackexchange.com/q/790116/72304>
Link: <https://lore.kernel.org/linux-man/Z5U0Wh_KF3Ki62Pk@comp../>
Signed-off-by: Arkadiusz Drabczyk <arkadiusz@drabczyk.org>
Message-ID: <20250202130331.20320-1-arkadiusz@drabczyk.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/man/man7/signal.7 b/man/man7/signal.7
index dd04c6d1a276491e27269707a15bcb7fbf6bb520..83251e07113d719d2b05bc011b305ac74b1d082c 100644 (file)
--- a/man/man7/signal.7
+++ b/man/man7/signal.7
@@ -360,7 +360,8 @@ Linux supports the standard signals listed below.
 The second column of the table indicates which standard (if any)
 specified the signal: "P1990" indicates that the signal is described
 in the original POSIX.1-1990 standard;
-"P2001" indicates that the signal was added in SUSv2 and POSIX.1-2001.
+"P2001" indicates that the signal was added or its definition changed
+in SUSv2 and POSIX.1-2001.
 .TS
 l c c l
 ____
@@ -369,7 +370,7 @@ Signal      Standard        Action  Comment
 SIGABRT        P1990   Core    Abort signal from \fBabort\fP(3)
 SIGALRM        P1990   Term    Timer signal from \fBalarm\fP(2)
 SIGBUS P2001   Core    Bus error (bad memory access)
-SIGCHLD        P1990   Ign     Child stopped or terminated
+SIGCHLD        P2001   Ign     Child stopped, terminated, or continued
 SIGCLD \-      Ign     A synonym for \fBSIGCHLD\fP
 SIGCONT        P1990   Cont    Continue if stopped
 SIGEMT \-      Term    Emulator trap