tqchen opened a new pull request, #19719:
URL: https://github.com/apache/tvm/pull/19719
This PR slims `tvm.libinfo` into a thin *info* layer that delegates path
discovery to the `tvm_ffi.libinfo` primitives and never loads libraries.
Loading responsibilities move to `tvm.base`, and the various ad-hoc
path-finding helpers are phased out in favor of the tvm-ffi resolvers.
## Changes
- **libinfo**: add `find_libtvm_runtime()` (resolves `libtvm_runtime` via
`_find_library_by_basename` + `_resolve_and_validate`) and
`find_tvm_include_path()` (TVM's own `include/`). `find_include_path()` now
returns `[find_tvm_include_path(), *tvm_ffi.libinfo.include_paths()]`,
folding
in the FFI + dlpack + python-helper include dirs. Remove `find_lib_path`,
`get_dll_directories`, `use_runtime_lib`, `split_env_var`, and
`load_backend_libs`.
- **base**: receive `load_backend_libs` and the backend DSO list; the
runtime-only switch becomes a strict `TVM_USE_RUNTIME_LIB == "1"` check.
- **rpc**: `with_minrpc` uses `find_libtvm_runtime()` (the `runtime` kwarg is
retained as an inert back-compat parameter); the rpc server `load_library`
resolves the literal library name against the current working directory.
- **wasm**: move the `web/dist` asset search into `emcc.find_wasm_lib`, used
by
`emcc.create_tvmjs_wasm` and the tvmjs asset lookup.
- **hexagon**: fix a latent bug where `_get_hexagon_rpc_lib_dir` called a
non-existent `tvm_ffi.libinfo.find_lib_path`; it now relies solely on the
`HEXAGON_RPC_LIB_DIR` environment variable.
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