find-CEntitySystem_m_entityNames

Find CEntitySystem_m_entityNames (final-guarantee fallback)

Recover CEntitySystem::m_entityNames in CS2 server.dll / libserver.so using IDA Pro MCP tools. This is the Agent fallback for find-CEntitySystem_m_entityNames; it runs only after the preprocessor fails. Produce the missing struct-offset YAML even when the anonymous ordered-map lookup helper was inlined into CEntitySystem_AddEntityToNameMap and the expected sub_*(this + off + 8, this + off, &key) call no longer exists.

Realworld Function References

Read the platform-relevant YAML before searching in IDA. Treat every address and offset as a reference-build value only and verify it against the current binary.

• ida_preprocessor_scripts/references/server/CEntitySystem_AddEntityToNameMap.windows.yaml
• ida_preprocessor_scripts/references/server/CEntitySystem_AddEntityToNameMap.linux.yaml

The Linux reference includes both the historical lookup helper pseudocode and the predecessor pseudocode. Its a1 + 2800 annotation identifies the map base (0xAF0); 0xAF8 identifies its m_Elements storage subobject. Never copy a reference displacement without checking the current function.

Background and semantic fingerprint

CEntitySystem_AddEntityToNameMap(this, identity) reads the entity-name key from identity + 0x18, returns when it is null, looks the key up in this->m_entityNames, and either appends the entity handle to an existing CEntityNameList or allocates a new 32-byte list and inserts it into the ordered map.

Identify this map operation by the whole fingerprint, not by an anonymous helper name:

• the key comes from identity + 0x18;
• RB-tree node indices use 0xFFFF as the null sentinel;
• nodes are 24 bytes and compare their key field against the entity-name key;
• the duplicate path calls _UtlRBTree_FailedInsertDuplicate or references the assertion text Found existing value when inserting into tree;
• the new-value path allocates 32 bytes for the CEntityNameList and inserts the entity handle into it.