Hi, Can these patches be backported to linux-5.4.y, I've tried to build perf on arm and it failed without these patches. fc8c0a992233 ("perf tools: Use %define api.pure full instead of %pure-parser") 20befbb10803 ("perf tools: Use %zd for size_t printf formats on 32-bit") 77d02bd00cea ("perf map: Tighten snprintf() string precision to pass gcc check on some 32-bit arches") Commit fc8c0a992233 ("perf tools: Use %define api.pure full instead of %pure-parser") fixes: util/parse-events.y:1.1-12: warning: deprecated directive: '%pure-parser', use '%define api.pure' [-Wdeprecated] 1 | %pure-parser | ^~~~~~~~~~~~ | %define api.pure Commit 20befbb10803 ("perf tools: Use %zd for size_t printf formats on 32-bit") fixes: In file included from util/session.c:17: util/session.c: In function 'perf_session__process_compressed_event': util/session.c:91:11: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Werror=format=] 91 | pr_debug("decomp (B): %ld to %ld\n", src_size, decomp_size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ util/debug.h:16:21: note: in definition of macro 'pr_fmt' 16 | #define pr_fmt(fmt) fmt | ^~~ util/session.c:91:2: note: in expansion of macro 'pr_debug' 91 | pr_debug("decomp (B): %ld to %ld\n", src_size, decomp_size); | ^~~~~~~~ Commit 77d02bd00cea ("perf map: Tighten snprintf() string precision to pass gcc check on some 32-bit arches") fixes: util/map.c: In function 'map__new': util/map.c:125:5: error: '%s' directive output may be truncated writing between 1 and 2147483645 bytes into a region of size 4096 [-Werror=format-truncation=] 125 | "%s/platforms/%s/arch-%s/usr/lib/%s", | ^~ In file included from /usr/arm-linux-gnueabihf/include/stdio.h:867, from util/symbol.h:11, from util/map.c:2: /usr/arm-linux-gnueabihf/include/bits/stdio2.h:67:10: note: '__builtin___snprintf_chk' output 32 or more bytes (assuming 4294967321) into a destination of size 4096 67 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 68 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Cheers, Anders