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authorOliver Kiddle <opk@zsh.org>2024-02-28 00:21:11 +0100
committerOliver Kiddle <opk@zsh.org>2024-02-28 00:21:11 +0100
commit5331ff11c64d9d292f4fe817723af6e0a067fa1f (patch)
tree367ea996dca3e15adc65bc5c4077726f56b08482 /Doc/Zsh/params.yo
parentb68002d927b1577bbed453d7bbbe39b55acf7bd0 (diff)
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52594: support for POSIX real-time signals with kill and trap
Also add new -L option to kill for a more verbose listing of signals
Diffstat (limited to 'Doc/Zsh/params.yo')
-rw-r--r--Doc/Zsh/params.yo5
1 files changed, 4 insertions, 1 deletions
diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo
index a6fbe6723..8c5e67e70 100644
--- a/Doc/Zsh/params.yo
+++ b/Doc/Zsh/params.yo
@@ -953,7 +953,10 @@ has index 1, the signals are offset by 1 from the signal number
 used by the operating system.  For example, on typical Unix-like systems
 tt(HUP) is signal number 1, but is referred to as tt($signals[2]).  This
 is because of tt(EXIT) at position 1 in the array, which is used
-internally by zsh but is not known to the operating system.
+internally by zsh but is not known to the operating system. On many systems
+there is a block of reserved or unused signal numbers before the POSIX
+real-time signals so the array index can't be used as an accurate indicator
+of their signal number. Use, for example, tt(kill -l SIGRTMIN) instead.
 )
 vindex(TRY_BLOCK_ERROR)
 item(tt(TRY_BLOCK_ERROR) <S>)(