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| author | Edward Tomasz Napierala <trasz@FreeBSD.org> | 2021-07-13 09:38:08 +0000 |
|---|---|---|
| committer | Edward Tomasz Napierala <trasz@FreeBSD.org> | 2021-07-13 10:13:17 +0000 |
| commit | 3eaf271d3c0e4fa18b74971a71c950fd43fa4189 (patch) | |
| tree | 76c576ef20484cd3d50c4b05a4745af81f158585 /sys/compat/linux/linux_signal.c | |
| parent | 84a3963d5d94be05c913d04ea0cef4ac69a8bfc7 (diff) | |
| download | src-3eaf271d3c0e4fa18b74971a71c950fd43fa4189.tar.gz src-3eaf271d3c0e4fa18b74971a71c950fd43fa4189.zip | |
linux(4): Improve comment about SA_RESTORER
No functional changes.
Sponsored By: EPSRC
Diffstat (limited to 'sys/compat/linux/linux_signal.c')
| -rw-r--r-- | sys/compat/linux/linux_signal.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/compat/linux/linux_signal.c b/sys/compat/linux/linux_signal.c index d0f1bb1c3b32..43213301239c 100644 --- a/sys/compat/linux/linux_signal.c +++ b/sys/compat/linux/linux_signal.c @@ -96,7 +96,12 @@ linux_to_bsd_sigaction(l_sigaction_t *lsa, struct sigaction *bsa) } if (lsa->lsa_flags & LINUX_SA_RESTORER) { flags &= ~LINUX_SA_RESTORER; - /* XXX: We might want to handle it; see Linux sigreturn(2). */ + /* + * We ignore the lsa_restorer and always use our own signal + * trampoline instead. It looks like SA_RESTORER is obsolete + * in Linux too - it doesn't seem to be used at all on arm64. + * In any case: see Linux sigreturn(2). + */ } if (lsa->lsa_flags & LINUX_SA_ONSTACK) { flags &= ~LINUX_SA_ONSTACK; |