Date: Mon, 09 Nov 2020 12:47:20 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 250954] ptrace(): weird ordering between inheriting debug registers and reporting a new thread Message-ID: <bug-250954-227-iPJsUhAvBq@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-250954-227@https.bugs.freebsd.org/bugzilla/> References: <bug-250954-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250954 --- Comment #11 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to Michał Górny from comment #10) And again I do not understand what you are complaining about. We stop target before new thread returns to userspace. This is the moment where TDB_BORN or TBD_SCX are checked. So if you are tracing either syscall exits or forks you get stop with SIGTRAP and pl_flag PL_FLAG_BORN. More, I believe that pl_lwpid is set to the lwpid of the new thread. At that stop, you can set whatever registers in the newborn thread. -- You are receiving this mail because: You are the assignee for the bug.help
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