https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80007
--- Comment #5 from PeteVine <tulipawn at gmail dot com> --- The repeated full ada bootstrap was successful at the same revision, using identical flags and GNAT 5.4.0. On the other hand, the failing build prints two warnings during the ada part: g-debpoo.adb: In function ‘GNAT.DEBUG_POOLS.GET_SIZE’: g-debpoo.adb:1418:8: warning: ‘SIZE_IN_STORAGE_ELEMENTS’ may be used uninitialized in this function [-Wmaybe-uninitialized] g-debpoo.ads:295:7: note: ‘SIZE_IN_STORAGE_ELEMENTS’ was declared here and g-comlin.adb: In function ‘GNAT.COMMAND_LINE.FIND_LONGEST_MATCHING_SWITCH’: g-comlin.adb:583:8: warning: ‘PARAM’ may be used uninitialized in this function [-Wmaybe-uninitialized] g-comlin.adb:107:7: note: ‘PARAM’ was declared here The error message read differently this time: 7.0.1 20170311 (experimental) (aarch64-linux-gnu) Storage_Error stack overflow or erroneous memory access