[Bug 252867] ptrace_test:ptrace__PT_STEP_with_signal test failed
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Date: Tue, 06 Jul 2021 16:00:24 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252867 --- Comment #2 from Mark Johnston <markj@FreeBSD.org> --- The problem on arm64 is that we don't disable single-stepping before executing a signal handler. I suspect the problem is the same on powerpc. This hack fixes the problem for me: diff --git a/sys/arm64/arm64/machdep.c b/sys/arm64/arm64/machdep.c index 25f0a108311e..7d7f78760381 100644 --- a/sys/arm64/arm64/machdep.c +++ b/sys/arm64/arm64/machdep.c @@ -896,6 +896,8 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask) tf->tf_elr = (register_t)catcher; tf->tf_sp = (register_t)fp; + tf->tf_spsr &= ~PSR_SS; + WRITE_SPECIALREG(mdscr_el1, READ_SPECIALREG(mdscr_el1) & ~DBG_MDSCR_SS); sysent = p->p_sysent; if (sysent->sv_sigcode_base != 0) tf->tf_lr = (register_t)sysent->sv_sigcode_base; -- You are receiving this mail because: You are the assignee for the bug.