CVS commit: src/bin/sh

["Robert Elz" <kre%netbsd.org@localhost>]

Module Name:    src
Committed By:   kre
Date:           Wed Nov 10 15:26:34 UTC 2021

Modified Files:
        src/bin/sh: error.c eval.c expand.c redir.c trap.c

Log Message:
DEBUG mode changes only.   NFC (NC) for any normally compiled shell.

Mostly adding DEBUG mode tracing (when appropriate verbose tracing
is enabled generally) whenever a shell (including sushell) process
exits, so shells that the tracing should indicate why ehslls that
vanish did that.

Note for future investigators: if the relevant tracing is enabled,
and a (sub-)shell still simply seems to have vanished without trace,
the likely cause is that it was killed by a signal - and of those,
the most common that occurs is SIGPIPE.


To generate a diff of this commit:
cvs rdiff -u -r1.43 -r1.44 src/bin/sh/error.c
cvs rdiff -u -r1.182 -r1.183 src/bin/sh/eval.c
cvs rdiff -u -r1.139 -r1.140 src/bin/sh/expand.c
cvs rdiff -u -r1.69 -r1.70 src/bin/sh/redir.c
cvs rdiff -u -r1.55 -r1.56 src/bin/sh/trap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.