lirent 1b06206043 Add operand-normalized semantic code signatures ...

New semsig_hash(mem_view_t) primitive (include/semsig.h): a position-,
register-, immediate- and instruction-order-invariant function fingerprint.
It folds per-instruction operand-canonical tokens, splitting the body into
basic blocks via cfg_blocks and using a within-block order-insensitive
sort-then-fold (between-block order preserved), so it survives compiler
register reallocation and instruction scheduling that the byte-mask
func_hash/sig_generate cannot. Distinct hash domain from func_hash.

The operand decode is delegated to an OPTIONAL external disassembler behind
a private adapter seam (src/handlers/semsig_backend.h); semsig.c stays
backend-neutral and includes no backend header. VMIE_DISASM={OFF|zydis|
capstone} gates the build: OFF (default) compiles only semsig_stub.c and
keeps the zero-dependency build (VMIE_HAVE_DISASM=0, packages unchanged).
The backend is brought from VMIE_DISASM_SRC or find_package - never
vendored. Adds the vmie_win32_func_semsig wrapper.

The CI deb job builds with the Zydis backend (libzydis-dev); the runtime
package dependency on libzydis is derived automatically by dpkg-shlibdeps.

2026-06-28 21:51:47 +03:00

..

release.yml

Add operand-normalized semantic code signatures

2026-06-28 21:51:47 +03:00