Add LoongArch32 support.
Add RISC-V static trampoline support.
Add aarch64 GCS (Guarded Control Stack) support.
Add aarch64 feature build attribute support.
Add ppc64le ELFv2 complex type support.
Add conditional target support for __int128.
Add x86_64 IEEE binary128 long double support (e.g. x86_64 Android).
Update bundled dlmalloc to upstream 2.8.6.
Fix closures using FFI_REGISTER ABI.
Fix SH linker errors with USER_LABEL_PREFIX.
Fix compilation for ARM Windows targets.
Fix compilation for Cortex-A53.
Fix test compilation for some Android platforms.
Fix x86 ASAN compatibility for win64.
Fix clang -Werror-semi builds on riscv, or1k, loongarch.
Fix NULL deref in dlmalloc sys_trim on heap corruption.
Fix ThreadSanitizer data race in dlmalloc mparams init (#873).
Define WIN32_LEAN_AND_MEAN before including windows.h.
Fix comments that trip up some toolchains.