https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88835
--- Comment #10 from Martin Sebor <msebor at gcc dot gnu.org> --- I've built the top of binutils-gdb with the patch referenced in comment #8 applied and with -Wformat-overflow=2 and -Wformat-truncation=2 and got the following breakdown: Diagnostic Count Unique Files -Wformat-overflow= 19 19 10 -Wformat-truncation= 12 12 7 -Wconflicts-sr 7 7 7 -Wmaybe-uninitialized 3 3 3 -Wstringop-truncation 2 2 2 -Wconflicts-rr 2 2 2 -Wsign-compare 1 1 1 -Wother 1 1 1 The -Wformat-overflow warnings are: /src/binutils-gdb/gas/macro.c:386:18: warning: ‘sprintf’ may write a terminating nul past the end of the destination [-Wformat-overflow=] /src/binutils-gdb/binutils/arsup.c:158:20: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] /src/binutils-gdb/binutils/wrstabs.c:426:21: warning: ‘sprintf’ may write a terminating nul past the end of the destination [-Wformat-overflow=] /src/binutils-gdb/binutils/wrstabs.c:739:27: warning: ‘%u’ directive writing between 1 and 10 bytes into a region of size between 7 and 45 [-Wformat-overflow=] /src/binutils-gdb/binutils/wrstabs.c:620:26: warning: ‘%ld’ directive writing between 1 and 20 bytes into a region of size between 19 and 38 [-Wformat-overflow=] /src/binutils-gdb/binutils/wrstabs.c:595:26: warning: ‘%ld’ directive writing between 1 and 20 bytes into a region of size between 19 and 38 [-Wformat-overflow=] eelf_iamcu.c:635:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_iamcu.c:628:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_x86_64.c:638:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_x86_64.c:631:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_i386.c:638:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_i386.c:631:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf32_x86_64.c:638:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf32_x86_64.c:631:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_k1om.c:638:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_k1om.c:631:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_l1om.c:638:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] eelf_l1om.c:631:25: warning: ‘%.*s’ directive output between 0 and 2147483647 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] /src/binutils-gdb/gdb/gdbserver/remote-utils.c:1188:21: warning: ‘%s’ directive output between 0 and 8191 bytes may exceed minimum required size of 4095 [-Wformat-overflow=] None for readelf.c. I think they are all for sprintf (and not printf or fprintf), so I'm not sure where the ones you are seeing are coming from.
