git: f222a6b88614 - main - dtrace: Fix /"string" == NULL/ comparisons using an uninitialized value.

[Jessica Clarke]

On 9 Jan 2021, at 02:05, Mateusz Guzik <mjguzik at gmail.com> wrote:
> 
> tinderbox fails to build riscv kernels with:
> 
> In file included from
> /usr/src/sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c:18434:
> /usr/src/sys/cddl/dev/dtrace/riscv/dtrace_isa.c:155:13: error:
> variable 'oldfp' is uninitialized when used here
> [-Werror,-Wuninitialized]
>                if (fp == oldfp) {
>                          ^~~~~
> /usr/src/sys/cddl/dev/dtrace/riscv/dtrace_isa.c:122:17: note:
> initialize the variable 'oldfp' to silence this warning
>        uintptr_t oldfp;
>                       ^
>                        = 0
> 1 error generated.
> 
> which stems from the Makefile change.

https://reviews.freebsd.org/D28054

Jess