codegraph-server SIGSEGVs at startup on Linux/aarch64 (before main, even `--version`)

[TueTrustWorks]

Summary

On Linux / aarch64, the codegraph-server binary segfaults deterministically at process startup — every invocation, including codegraph-server --version and --help, which do no real work. The crash is before main(), in a shared library's C++ static-initialization path. Built from source at v0.19.0-7-g06bcc88 (cargo build --release -p codegraph-server).

It is not environment-specific

I reproduced the identical crash with the binary built on two different toolchains, to rule out a bleeding-edge-distro issue:

Build+run env	gcc	glibc	Result
Ubuntu 25.10 (arm64)	15.2	2.43	SIGSEGV at startup
Debian bookworm (arm64)	12	2.36	SIGSEGV at startup

A trivial hello-world Rust binary built on the same images runs fine, so the toolchains themselves are healthy.

Symptom / gdb

$ codegraph-server --version
Segmentation fault (core dumped)   # ~0.1s, rc=139

# gdb: crash before main(), corrupt/unwindable stack
Program received signal SIGSEGV
=> 0x…:  strb  w19, [x0]           # store byte through a pointer loaded from a global
# x0 = garbage (e.g. 0xaaaad51d1a0e); instruction sequence:
#   adrp x0, <page>; ldr x0, [x0, #off]; strb w19, [x0]   (w19 = 1)
# faulting PC is inside a shared lib (libc/libstdc++ region), symbols unavailable

Only ld-linux, libstdc++, libgcc_s, libm, libc are mapped at crash time (ONNX Runtime .so is not loaded for --version).

Ruled out

• ONNX Runtime — crashes identically whether ort is statically linked (default) or dynamic (fastembed → ort-load-dynamic); the .so isn't even loaded at --version.
• Static-TLS overflow — TLS MemSiz is ~2KB; bumping GLIBC_TUNABLES=glibc.rtld.optional_static_tls doesn't help.
• OOM — deterministic, same point every time; not memory-pressure-dependent.
• Stack overflow — ulimit -s unlimited doesn't help.
• Environment — crashes under env -i too.

Build notes (in case relevant)

RocksDB (librocksdb-sys 0.16 / RocksDB 8.10) needs CXXFLAGS="-include cstdint" to compile under gcc ≥13; unrelated to the crash but required to build at all on modern toolchains.

Ask

Is codegraph-server expected to work on Linux/aarch64 at this version? Happy to provide a full core dump, LD_DEBUG output, or test a patch. The pre-main store-through-a-bad-global-pointer suggests a static-initializer / relocation issue in a bundled C/C++ dependency.