Since #5978, StartExit only parks the other guest threads and exit runs
LibcRunShutdown itself, so LoadExec's three exits (the converted
executable on Windows and Linux, and the host executable) now call
LibcStartExit and then LibcRunShutdown, as exit does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Metal Gear Solid 4 (PPSA18194) aborts on main when its launcher starts
the game: sceSystemServiceLoadExec runs the guest shutdown, a render
thread that then calls into the stopped AGC driver gets ProcessShutdown
back from LibcAwaitExit, and the exception unwinds into title code,
which terminates the process before the new executable starts.
LibcAwaitExit parks a thread only once an exit has been requested, and
LoadExec ran the shutdown without requesting one. It now starts the
shutdown the way exit does, so such threads wait until the process is
replaced.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A LoadExec with an argument list replaces the process through Replace (fexecve), which runs before StartHostExecutable, so the next image still wrote to the title's redirect. Descriptor 2 now gets the kept host descriptor there too, after the shutdown and the flush and before close_range closes it.
