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NtQueryVirtualMemory for MemorySectionName may return some old path even if the process was just started, for when some directory in between was renamed - maybe because the NT file cache is hot for the old path still. This was seen during gcc bootstrap, returning a MemorySectionName of ".../gcc/xgcc.exe" even if started as ".../prev-gcc/xgcc.exe", where the directory rename from "gcc" to "prev-gcc" was done the moment before. As we stat the module's real file right after loading now, there is no point in using NtQueryVirtualMemory with MemorySectionName any more, and we can use what GetModuleFileName returned instead.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cygwin documentation is available on the net at https://cygwin.com You might especially be interested in https://cygwin.com/faq/faq.html#faq.programming.building-cygwin