[binutils-gdb] microblaze-tdep: Add ATTRIBUTE_PRINTF to microblaze_debug

[sergiodj+buildbot at sergiodj dot net]

*** TEST RESULTS FOR COMMIT ebe48ba0856dcccaa7a60d873c61e6f1f96f5887 ***

Author: Simon Marchi <simon.marchi@ericsson.com>
Branch: master
Commit: ebe48ba0856dcccaa7a60d873c61e6f1f96f5887

microblaze-tdep: Add ATTRIBUTE_PRINTF to microblaze_debug

I am getting this warning with clang:

/home/emaisin/src/binutils-gdb/gdb/microblaze-tdep.c:94:28: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
       vprintf_unfiltered (fmt, args);
                           ^~~

Adding ATTRIBUTE_PRINTF to microblaze_debug gets rid of it.  Strangely,
gcc doesn't warn about non-literal format strings when calling vprintf
(or a vprintf-style function, like vprintf_unfiltered).  I filed this
gcc bug:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82206

gdb/ChangeLog:

	* microblaze-tdep.c (microblaze_debug): Add ATTRIBUTE_PRINTF.