unixMapfile      27365 ext/sqlite3/libsqlite/sqlite3.c static int unixMapfile(unixFile *pFd, i64 nByte);
unixMapfile      29207 ext/sqlite3/libsqlite/sqlite3.c     rc = unixMapfile(pFile, nByte);
unixMapfile      29299 ext/sqlite3/libsqlite/sqlite3.c           rc = unixMapfile(pFile, -1);
unixMapfile      30342 ext/sqlite3/libsqlite/sqlite3.c       int rc = unixMapfile(pFd, -1);