FuzzTest Rust: Switch sanitizer crash reporting to ReportErrorSummary hook. - #2233
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… 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: 982461086
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FuzzTest Rust: Switch sanitizer crash reporting to ReportErrorSummary hook.
Instead of relying on
__sanitizer_set_death_callbackand ASan-specific__asan_get_report_description, override__sanitizer_report_error_summaryto capture crash summaries across all sanitizers (ASan, MSan, TSan, UBSan, LSan,
etc.), matching the C++ FuzzTest runtime approach.
Move the
__sanitizer_report_error_summaryoverride intosanitizer_interfaceand expose an
extern "C"callback registration entry point(
FuzzTestSetSanitizerErrorSummaryCallback) so that both C++ and Rust share theexact 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)]requirementfrom the
fuzztestlibrary crate for OSS Cargo builds.