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JUNE 15, 2026
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libsanitizer Performance Win

Libsanitizer: RISC-V now supports HWASAN.

Enables building libsanitizer with HWASAN support for RISC-V targets.

This commit enables Hardware-assisted AddressSanitizer (HWASAN) support for RISC-V targets in libsanitizer. With both libsanitizer and the RISC-V backend now supporting HWASAN, this change allows building libsanitizer with HWASAN enabled for RISC-V.

In Details

This commit modifies configure.tgt to enable HWASAN support for the RISC-V target. HWASAN is a memory error detector that uses hardware tagging to improve performance. Search terms: libsanitizer HWASAN RISC-V.

For Context

AddressSanitizer (ASan) is a fast memory error detector. HWASAN is a variant that uses hardware memory tagging to reduce the performance overhead. This commit enables HWASAN for RISC-V, a modern open-source processor architecture. This allows developers to more easily find memory errors in their RISC-V code. Search terms: libsanitizer HWASAN RISC-V.

Filed Under: libsanitizerrisc-vhwasanmemory safety