support codex

[kemingy]

codex has:

1. openssl vendor

# Build OpenSSL from source for musl builds.
[target.x86_64-unknown-linux-musl.dependencies]
openssl-sys = { workspace = true, features = ["vendored"] }

# Build OpenSSL from source for musl builds.
[target.aarch64-unknown-linux-musl.dependencies]
openssl-sys = { workspace = true, features = ["vendored"] }

https://docs.rs/openssl/latest/openssl/#vendored

2. rustls

https://docs.rs/rustls/latest/rustls/

[kemingy]

By using bpftrace:

uprobe:$BIN:$READ
{
    @buf[tid, comm] = arg2;
}

uretprobe:$BIN:$READ /@buf[tid, comm]/
{
    $rb = @buf[tid, comm];
    delete(@buf, (tid, comm));
    $ptr = *(uint64*)($rb);
    $filled = *(uint64*)($rb + 24);

    if ($filled > 0) {
        printf("read from pid %d, len=%d\n", pid, $filled);
        printf("=> %r\n", buf($ptr, $filled));
    }
}

uprobe:$BIN:$WRITE
{
    printf("write from pid=%d, len=%d\n", pid, arg3);
    printf("=> %r\n", buf(arg2, arg3));
}

export BIN=/path/to/your/binary
export READ=(nm -an --demangle $BIN | rg TcpStream | rg -w poll_read | awk '{print "0x" $1}')
export WRITE=(nm -an --demangle $BIN | rg TcpStream | rg -w poll_write | awk '{print "0x" $1}')
envsubst '$BIN,$READ,$WRITE' < bpf/rustls.bt | sudo bpftrace -

[kemingy]

• rust ABI crABI v1 rust-lang/rfcs#3470
• rust dtrace dtrace probes rust-lang/rfcs#875
• rust symbol mangling v0 https://doc.rust-lang.org/rustc/symbol-mangling/v0.html
• rust switch to v0 on nightly https://blog.rust-lang.org/2025/11/20/switching-to-v0-mangling-on-nightly/