GCC: v850-elf

[Nick Clifton]

Hi Jan-Benedict,

> With my re-started testing efforts, I've got another one for you I
> guess (`./configure --target=v850-elf && make all-gcc`):
> 
> ../.././gcc/config/v850/v850.c: In function ‘char* construct_restore_jr(rtx)’:
> ../.././gcc/config/v850/v850.c:2260:22: error: ‘%s’ directive writing up to 39 bytes into a region of size between 32 and 71 [-Werror=format-overflow=]
>   2260 |       sprintf (buff, "movhi hi(%s), r0, r6\n\tmovea lo(%s), r6, r6\n\tjmp r6",
>        |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   2261 |         name, name);
>        |               ~~~~

I could not reproduce these in my local environment, but I suspect that
you are using a more recent version of gcc than me.  The fix looks obvious
however, so please could you try out the attached patch and let me know
if it resolves the problem ?

Cheers
   Nick
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