[all-commits] [llvm/llvm-project] 9417d9: [libc] Make the bump pointer explicitly return nul...

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9417d9fc38c81e1c13aec49f81fa7bf93c9a4bb6
      https://github.com/llvm/llvm-project/commit/9417d9fc38c81e1c13aec49f81fa7bf93c9a4bb6
  Author: Joseph Huber <jhuber6 at vols.utk.edu>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M libc/test/IntegrationTest/test.cpp
    M libc/test/UnitTest/HermeticTestUtils.cpp

  Log Message:
  -----------
  [libc] Make the bump pointer explicitly return null on buffer oveerrun

We use a simple bump ptr in the `libc` tests. If we run out of data we
can currently return other static memory and have weird failure cases.
We should fail more explicitly here by returning a null pointer instead.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D150529