tree eeb6a6deae79c396336c23e4ed3645e6e47d45f5
parent 328edf32ad22f3383d02514916ddf0a1617fc32b
author Hui Yingst <nigi@chromium.org> 1684789356 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1684789356 +0000

Avoid setting DiscardableMemoryAllocator in `LLVMFuzzerTestOneInput()`

If compiled with chromium, a DiscardableMemoryAllocator is already
set by `LLVMFuzzerInitialize()` in chromium before calling
`LLVMFuzzerTestOneInput()` when running `pdfium_fuzzer`, which causes
DCHECK failure in DiscardableMemoryAllocator::SetInstance() since the
allocator is already set.

This CL removes the steps of setting up DiscardableMemoryAllocator in
`LLVMFuzzerTestOneInput()` to avoid the DCHECK failure. And it
simplifies the fuzzer process to only set up the
DiscardableMemoryAllocator once.

Bug: chromium:1440491
Change-Id: I48e678253dacd696bd0fbf01805e150d9026ac53
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/107890
Commit-Queue: Nigi <nigi@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>