runtime: don't stat a NULL filename
authorIan Lance Taylor <ian@gcc.gnu.org>
Thu, 28 Jun 2018 20:54:04 +0000 (20:54 +0000)
committerIan Lance Taylor <ian@gcc.gnu.org>
Thu, 28 Jun 2018 20:54:04 +0000 (20:54 +0000)
commit94e12bd4d9b7de6cc4a084c7b453a0e26210f56e
treeae65c319bfeb98b4332946ac7f27375be3ba4e03
parenteacb16dc798d06acfb9741a2496584ab0728257a
runtime: don't stat a NULL filename

    Noticed in https://gcc.gnu.org/PR86331.

    Reviewed-on: https://go-review.googlesource.com/121417

From-SVN: r262234
gcc/go/gofrontend/MERGE
libgo/runtime/go-caller.c