[Qemu-devel] trace: Harmless looking build noise on F28

[Markus Armbruster]

(1) I've gotten this one for a while:

    /work/armbru/qemu/trace/ftrace.c: In function ‘ftrace_init’:
    /work/armbru/qemu/trace/ftrace.c:56:37: warning: ‘%s’ directive output may 
be truncated writing up to 8 bytes into a region of size between 1 and 4096 
[-Wformat-truncation=]
             snprintf(path, PATH_MAX, "%s%s/tracing_on", mount_point, subdir);
                                         ^~
    In file included from /usr/include/stdio.h:862,
                     from /work/armbru/qemu/include/qemu/osdep.h:99,
                     from /work/armbru/qemu/trace/ftrace.c:12:
    /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output 
between 12 and 4115 bytes into a destination of size 4096
       return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            __bos (__s), __fmt, __va_arg_pack ());
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /work/armbru/qemu/trace/ftrace.c:75:37: warning: ‘%s’ directive output may 
be truncated writing up to 8 bytes into a region of size between 1 and 4096 
[-Wformat-truncation=]
             snprintf(path, PATH_MAX, "%s%s/trace_marker", mount_point, subdir);
                                         ^~
    In file included from /usr/include/stdio.h:862,
                     from /work/armbru/qemu/include/qemu/osdep.h:99,
                     from /work/armbru/qemu/trace/ftrace.c:12:
    /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output 
between 14 and 4117 bytes into a destination of size 4096
       return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            __bos (__s), __fmt, __va_arg_pack ());
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


(2) I just spotted this one, no idea for how long I've missed it:

    Warning: /usr/bin/dtrace:target/hppa/trace-dtrace.dtrace:2 syntax error 
near:
    provider qemu {

    Warning: Proceeding as if --no-pyparsing was given.