On Mon, Jun 10, 2019 at 12:21:51AM -0700, Ivan Babrou wrote: > Looks like 4.19.49 received some patches for GCC 9+, but unfortunately > perf still doesn't want to compile: > > [07:15:32]In file included from /usr/include/string.h:635, > [07:15:32] from util/debug.h:7, > [07:15:32] from builtin-help.c:15: > [07:15:32]In function 'strncpy', > [07:15:32] inlined from 'add_man_viewer' at builtin-help.c:192:2, > [07:15:32] inlined from 'perf_help_config' at builtin-help.c:284:3: > [07:15:32]/usr/include/x86_64-linux-gnu/bits/string3.h:126:10: error: > '__builtin_strncpy' output truncated before terminating nul copying as > many bytes from a string as its length [-Werror=stringop-truncation] > [07:15:32] 126 | return __builtin___strncpy_chk (__dest, __src, __len, > __bos (__dest)); > [07:15:32] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > [07:15:32]builtin-help.c: In function 'perf_help_config': > [07:15:32]builtin-help.c:187:15: note: length computed here > [07:15:32] 187 | size_t len = strlen(name); > [07:15:32] | ^~~~~~~~~~~~ > [07:15:32]cc1: all warnings being treated as errors Any chance in finding a patch in Linus's tree that resolves this? I don't have gcc9 on my systems here yet to test this. thanks, greg k-h
