Em Thu, Feb 18, 2021 at 09:26:17AM +0000, John Garry escreveu: > On 18/02/2021 03:12, Jianlin Lv wrote: > > gcc version: 11.0.0 20210208 (experimental) (GCC) > > > > Following build error on arm64: > > > > ....... > > In function ‘printf’, > > inlined from ‘regs_dump__printf’ at util/session.c:1141:3, > > inlined from ‘regs__printf’ at util/session.c:1169:2: > > /usr/include/aarch64-linux-gnu/bits/stdio2.h:107:10: \ > > error: ‘%-5s’ directive argument is null [-Werror=format-overflow=] > > > > 107 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, \ > > __va_arg_pack ()); > > > > ...... > > In function ‘fprintf’, > > inlined from ‘perf_sample__fprintf_regs.isra’ at \ > > builtin-script.c:622:14: > > /usr/include/aarch64-linux-gnu/bits/stdio2.h:100:10: \ > > error: ‘%5s’ directive argument is null [-Werror=format-overflow=] > > 100 | return __fprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt, > > 101 | __va_arg_pack ()); > > > > cc1: all warnings being treated as errors > > ....... > > > > This patch fixes Wformat-overflow warnings. Add helper function to > > convert NULL to "unknown". > > > > Signed-off-by: Jianlin Lv<Jianlin.Lv@xxxxxxx> > > thanks > Reviewed-by: John Garry <john.garry@xxxxxxxxxx> Thanks, applied. - Arnaldo
