forked from Mirrors/opensbi

GCC-9 will throw a warning when using the %s format specifier with a possible NULL parameter and since -Werror is used, the compilation breaks for GCC-9. In function 'sbi_boot_prints', inlined from 'init_coldboot' at <redacted>/opensbi/lib/sbi/sbi_init.c:107:3, inlined from 'sbi_init' at <redacted>/opensbi/lib/sbi/sbi_init.c:189:3: <redacted>/opensbi/lib/sbi/sbi_init.c:56:2: error: '%s' directive argument is null [-Werror=format-overflow=] 56 | sbi_printf("Platform Name : %s\n", sbi_platform_name(plat)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors This is one way to fix this, currently there is nothing in the tree checking for `sbi_platfrom_name() == NULL` so we can just return "Unknown" instead of NULL on failure. Signed-off-by: Martin Pietryka <martin@pietryka.at> Reviewed-by: Anup Patel <anup.patel@wdc.com> Tested-by: David Abdurachmanov <david.abdurachmanov@sifive.com>