busybox-w32/libbb/signals.c, branch mount_point

Merge branch 'busybox' into merge

2025-09-11T06:43:40+00:00

ash: eval: Add vfork support

2025-09-07T08:56:39+00:00

Merge upstream commit df154028d. Since we don't have vfork() on Windows we continue to use the spawn_forkshell() mechanism. Although there is some rearrangement of the code it's functionally the same.

*: code shrink using sigprocmask2() where appropriate

2025-08-10T23:17:02+00:00

function old new delta sig_unblock 41 43 +2 sig_block 41 40 -1 sigprocmask_allsigs 33 31 -2 wait_for_child_or_signal 202 193 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/3 up/down: 2/-12) Total: -10 bytes Signed-off-by: Denys Vlasenko

ash: eval: Add vfork support

2025-08-09T15:36:18+00:00

Upstream commit: Date: Sat, 19 May 2018 02:39:56 +0800 eval: Add vfork support This patch adds basic vfork support for the case of a simple command. Upstream commit: Date: Tue, 12 Jan 2021 17:11:19 +1100 jobs: Always reset SIGINT/SIGQUIT handlers On Fri, Jan 08, 2021 at 08:55:41PM +0000, Harald van Dijk wrote: > On 18/05/2018 19:39, Herbert Xu wrote: > > This patch adds basic vfork support for the case of a simple command. > > ... @@ -879,17 +892,30 @@ forkchild(struct job *jp, union node *n, int > > mode) > > } > > } > > if (!oldlvl && iflag) { > > - setsignal(SIGINT); > > - setsignal(SIGQUIT); > > + if (mode != FORK_BG) { > > + setsignal(SIGINT); > > + setsignal(SIGQUIT); > > + } > > setsignal(SIGTERM); > > } > > + > > + if (lvforked) > > + return; > > + > > for (jp = curjob; jp; jp = jp->prev_job) > > freejob(jp); > > } > > This leaves SIGQUIT ignored in background jobs in interactive shells. > > ENV= dash -ic 'dash -c "kill -QUIT \$\$; echo huh" & wait' > > As of dash 0.5.11, this prints "huh". Before, the subprocess process killed > itself before it could print anything. Other shells do not leave SIGQUIT > ignored. > > (In a few other shells, this also prints "huh", but in those other shells, > that is because the inner shell chooses to ignore SIGQUIT, not because the > outer shell leaves it ignored.) Thanks for catching this. I have no idea how that got in there and it makes no sense whatsoever. This patch removes the if conditional. Fixes: e94a964e7dd0 ("eval: Add vfork support") Signed-off-by: Denys Vlasenko

Merge branch 'busybox' into merge

2021-06-07T10:34:06+00:00

runsv: robustify signal handling - SIGTERM to child between vfork and exec could mess things up

2021-06-05T14:20:05+00:00

While at it, rename bb_signals_recursive_norestart() to bb_signals_norestart(): "recursive" was implying we are setting SA_NODEFER allowing signal handler to be entered recursively, but we do not do that. function old new delta bb_signals_norestart - 70 +70 startservice 380 394 +14 bb_signals_recursive_norestart 70 - -70 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/0 up/down: 84/-70) Total: 14 bytes Signed-off-by: Denys Vlasenko

win32: code shrink

2021-02-06T09:52:11+00:00

Don't compile some code that isn't currently supported for WIN32. Saves 24 bytes.

inetd: suppress aliasing warning

2018-12-08T14:35:24+00:00

function old new delta sigprocmask2 - 8 +8 wait_for_child_or_signal 213 218 +5 dowait 424 429 +5 block_CHLD_HUP_ALRM 62 59 -3 sigprocmask_SIG_SETMASK 16 - -16 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 2/1 up/down: 18/-19) Total: -1 bytes Signed-off-by: Denys Vlasenko

suppress gcc 8 aliasing warnings

2018-12-08T12:49:15+00:00

function old new delta sigprocmask_SIG_SETMASK - 16 +16 wait_for_child_or_signal 221 213 -8 dowait 432 424 -8 Signed-off-by: Denys Vlasenko

whitespace and comment format fixes, no code changes

2017-10-05T12:40:24+00:00

Signed-off-by: Denys Vlasenko