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This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Is this known issue? ====== log =============== CC arch/x86/x86_emulate.o In file included from arch/x86/x86_emulate.c:27: arch/x86/x86_emulate/x86_emulate.c: In function ‘x86_emulate’: arch/x86/x86_emulate/x86_emulate.c:70:36: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=] 70 | gcc11_wrap(ptr)[0 - PFX_BYTES] = ext < ext_8f08 ? 0xc4 : 0x8f; \ arch/x86/x86_emulate/x86_emulate.c:78:9: note: in expansion of macro ‘copy_VEX’ 78 | copy_VEX(ptr, vex); \ | ^~~~~~~~ arch/x86/x86_emulate/x86_emulate.c:8140:13: note: in expansion of macro ‘copy_REX_VEX’ 8140 | copy_REX_VEX(opc, rex_prefix, vex); | ^~~~~~~~~~~~ In file included from arch/x86/x86_emulate/x86_emulate.c:11, from arch/x86/x86_emulate.c:27: arch/x86/x86_emulate/private.h:691:17: note: at offset [0, 4095] into destination object of size [0, 9223372036854775807] allocated by ‘map_domain_page’ 691 | (stb).ptr = map_domain_page(_mfn(this_cpu(stubs.mfn))) + \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/x86_emulate/x86_emulate.c:60:21: note: in expansion of macro ‘get_stub’ 60 | uint8_t *buf_ = get_stub(stub); \ | ^~~~~~~~ arch/x86/x86_emulate/x86_emulate.c:3354:15: note: in expansion of macro ‘init_prefixes’ 3354 | opc = init_prefixes(stub); | ^~~~~~~~~~~~~ arch/x86/x86_emulate/private.h:691:17: note: at offset [1, 4096] into destination object of size [0, 9223372036854775807] allocated by ‘map_domain_page’ 691 | (stb).ptr = map_domain_page(_mfn(this_cpu(stubs.mfn))) + \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/x86_emulate/x86_emulate.c:94:21: note: in expansion of macro ‘get_stub’ 94 | uint8_t *buf_ = get_stub(stub); \ | ^~~~~~~~ arch/x86/x86_emulate/x86_emulate.c:3402:15: note: in expansion of macro ‘init_evex’ 3402 | opc = init_evex(stub); [...] -- Best regards, -grygorii