tree 9905adad0d1360e5713d6b3f8677fb847d56c946
parent a8861f3aa71443dabaf42dc9cba78b3982524a51
author Filip Niksic <fniksic@google.com> 1790091091 -0700
committer Copybara-Service <copybara-worker@google.com> 1790091160 -0700

FuzzTest Rust: Switch sanitizer crash reporting to ReportErrorSummary hook.

Instead of relying on `__sanitizer_set_death_callback` and ASan-specific
`__asan_get_report_description`, override `__sanitizer_report_error_summary`
to capture crash summaries across all sanitizers (ASan, MSan, TSan, UBSan, LSan,
etc.), matching the C++ FuzzTest runtime approach.

Move the `__sanitizer_report_error_summary` override into `sanitizer_interface`
and expose an `extern "C"` callback registration entry point
(`FuzzTestSetSanitizerErrorSummaryCallback`) so that both C++ and Rust share the
exact same sanitizer hook and crash-type parser.

This fixes missing crash reports when sanitizers abort without triggering death
callbacks (such as MSan nested bugs), extracts detailed crash descriptions for
all sanitizers, and removes the unstable `#![feature(cfg_sanitize)]` requirement
from the `fuzztest` library crate for OSS Cargo builds.

PiperOrigin-RevId: 986015608