Brian Gianforcaro 70f3fa2dd2 Kernel: Set new process name in do_exec before waiting for the tracer ... While investigating why gdb is failing when it calls `PT_CONTINUE` against Serenity I noticed that the names of the programs in the System Monitor didn't make sense. They were seemingly stale. After inspecting the kernel code, it became apparent that the sequence occurs as follows: 1. Debugger calls `fork()` 2. The forked child calls `PT_TRACE_ME` 3. The `PT_TRACE_ME` instructs the forked process to block in the kernel waiting for a signal from the tracer on the next call to `execve(..)`. 4. Debugger waits for forked child to spawn and stop, and then it calls `PT_ATTACH` followed by `PT_CONTINUE` on the child. 5. Currently the `PT_CONTINUE` fails because of some other yet to be found bug. 6. The process name is set immediately AFTER we are woken up by the `PT_CONTINUE` which never happens in the case I'm debugging. This chain of events leaves the process suspended, with the name of the original (forked) process instead of the name we inherit from the `execve(..)` call. To avoid such confusion in the future, we set the new name before we block waiting for the tracer.		2022-02-19 18:04:32 -08:00
..
access.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
alarm.cpp	Kernel: Remove unnecessary includes from Thread.h	2022-01-30 16:21:59 +01:00
anon_create.cpp	Kernel: Switch process file descriptor table from spinlock to mutex	2022-01-29 02:17:09 +01:00
beep.cpp	Kernel: Add CommandLine option to disable or enable the PC speaker	2022-01-23 00:40:54 +00:00
chdir.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
chmod.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
chown.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
clock.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
debug.cpp	Kernel+UE+LibC: Remove unused dbgputch syscall	2021-11-24 22:56:39 +01:00
disown.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
dup2.cpp	Kernel: Switch process file descriptor table from spinlock to mutex	2022-01-29 02:17:09 +01:00
emuctl.cpp	Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>	2021-11-08 01:10:53 +01:00
execve.cpp	Kernel: Set new process name in do_exec before waiting for the tracer	2022-02-19 18:04:32 -08:00
exit.cpp	Kernel: Fix a few typos	2021-10-01 00:51:49 +01:00
fcntl.cpp	Kernel: Switch process file descriptor table from spinlock to mutex	2022-01-29 02:17:09 +01:00
fork.cpp	AK+Kernel: OOM-harden most parts of Trie	2022-02-15 18:03:02 +02:00
fsync.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
ftruncate.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
futex.cpp	Kernel: Fix futex syscall return values	2021-11-24 19:44:57 +01:00
get_dir_entries.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
get_stack_bounds.cpp	Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>	2021-11-08 01:10:53 +01:00
getrandom.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
getuid.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
hostname.cpp	Kernel: Convert hostname to KString	2022-01-13 00:20:08 -08:00
inode_watcher.cpp	Kernel: Switch process file descriptor table from spinlock to mutex	2022-01-29 02:17:09 +01:00
ioctl.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
keymap.cpp	Kernel: Replace String with NonnullOwnPtr<KString> in sys$getkeymap	2022-01-25 08:06:02 +01:00
kill.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
link.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
lseek.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
mkdir.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
mknod.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
mmap.cpp	Kernel: Use try_make_weak_ptr() instead of make_weak_ptr()	2022-02-13 23:02:57 +01:00
mount.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
open.cpp	Kernel: Robustify and rename Inode bound socket API	2022-02-07 13:02:34 +01:00
perf_event.cpp	Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>	2021-11-08 01:10:53 +01:00
pipe.cpp	Kernel: Switch process file descriptor table from spinlock to mutex	2022-01-29 02:17:09 +01:00
pledge.cpp	Kernel: Use StringView::for_each_split_view() in sys$pledge	2022-02-14 11:35:20 +01:00
poll.cpp	Kernel: Only lock process file descriptor table once in sys$poll()	2022-01-29 02:17:12 +01:00
prctl.cpp	Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>	2021-11-08 01:10:53 +01:00
process.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
profiling.cpp	Kernel: Fixed argument passing for profiling_enable syscall	2022-02-19 11:37:02 +01:00
ptrace.cpp	Kernel: Remove unnecessary includes from Thread.h	2022-01-30 16:21:59 +01:00
purge.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
read.cpp	Kernel/Profiling: Add profiling to read syscall	2022-02-14 11:38:13 +01:00
readlink.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
realpath.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
rename.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
rmdir.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
sched.cpp	Kernel: Remove unnecessary includes from Thread.h	2022-01-30 16:21:59 +01:00
sendfd.cpp	Kernel: Switch process file descriptor table from spinlock to mutex	2022-01-29 02:17:09 +01:00
setpgid.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
setuid.cpp	Kernel: Fail gracefully due to OOM on HashTable set in sys$setgroups	2022-01-26 02:37:03 +02:00
sigaction.cpp	Kernel: Make AddressSpace::find_regions_intersecting OOM-fallible	2022-01-26 02:37:03 +02:00
socket.cpp	Kernel: Ensure socket is suitable for writing in sys$sendmsg	2022-02-07 12:21:45 +01:00
stat.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
statvfs.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
sync.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
sysconf.cpp	Kernel: Expose maximum argument limit in sysconf	2022-02-13 22:06:54 +02:00
thread.cpp	Kernel: Remove unnecessary includes from Thread.h	2022-01-30 16:21:59 +01:00
times.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
ttyname.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00
umask.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
uname.cpp	Kernel: Fix OOB write in sys$uname	2022-01-13 00:20:08 -08:00
unlink.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
unveil.cpp	AK+Kernel: OOM-harden most parts of Trie	2022-02-15 18:03:02 +02:00
utime.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
waitid.cpp	Kernel: Handle promise violations in the syscall handler	2021-12-29 18:08:15 +01:00
write.cpp	Kernel: Convert process file descriptor table to a SpinlockProtected	2022-01-29 02:17:06 +01:00