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The following commit(s) were added to refs/heads/unity by this push:
new b40391961a [Unity] Add system lib build option to relax (#14734)
b40391961a is described below
commit b40391961a3ae6ffe194364db18bc7bd79570bbb
Author: Tianqi Chen <tqc...@users.noreply.github.com>
AuthorDate: Thu Apr 27 16:00:35 2023 -0400
[Unity] Add system lib build option to relax (#14734)
This PR add system lib build option to relax
also adds an util that creates an archived static
library in compilation
---
python/tvm/contrib/cc.py | 30 ++++++++++++++++++++++++++++++
python/tvm/relax/vm_build.py | 24 ++++++++++++++++++------
2 files changed, 48 insertions(+), 6 deletions(-)
diff --git a/python/tvm/contrib/cc.py b/python/tvm/contrib/cc.py
index 867cbd6012..add74396a0 100644
--- a/python/tvm/contrib/cc.py
+++ b/python/tvm/contrib/cc.py
@@ -83,6 +83,36 @@ def create_shared(output, objects, options=None, cc=None):
raise ValueError("Unsupported platform")
+def _linux_ar(output, objects):
+ cmd = ["ar", "-crs", output]
+ cmd += objects
+ proc = subprocess.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
+ (out, _) = proc.communicate()
+ if proc.returncode != 0:
+ msg = "AR error:\n"
+ msg += py_str(out)
+ msg += "\nCommand line: " + " ".join(cmd)
+ raise RuntimeError(msg)
+
+
+def create_staticlib(output, objects):
+ """Create shared library.
+
+ Parameters
+ ----------
+ output : str
+ The target shared library.
+
+ objects : List[str]
+ List of object files.
+ """
+
+ if _is_linux_like():
+ return _linux_ar(output, objects)
+ else:
+ raise ValueError("Unsupported platform")
+
+
def create_executable(output, objects, options=None, cc=None):
"""Create executable binary.
diff --git a/python/tvm/relax/vm_build.py b/python/tvm/relax/vm_build.py
index c89c64cd81..a833939833 100644
--- a/python/tvm/relax/vm_build.py
+++ b/python/tvm/relax/vm_build.py
@@ -180,12 +180,13 @@ def _vmcodegen(
raise ValueError("Unknown exec_mode %s" % exec_mode)
-def _autodetect_system_lib_req(target: tvm.target.Target):
+def _autodetect_system_lib_req(target: tvm.target.Target, system_lib):
"""Automatically detect system lib requirement"""
host = target if target.host is None else target.host
- system_lib = False
- if "wasm" in host.attrs.get("mtriple", ""):
- system_lib = True
+ if system_lib is None:
+ system_lib = False
+ if "wasm" in host.attrs.get("mtriple", ""):
+ system_lib = True
if system_lib:
# use packed-func to avoid relay dep.
return tvm.get_global_func("relay.backend.CreateRuntime")("cpp",
{"system-lib": system_lib})
@@ -198,6 +199,8 @@ def _vmlink(
tir_mod: Optional[tvm.IRModule] = None,
ext_libs: List[tvm.runtime.Module] = None,
params: Optional[Dict[str, list]] = None,
+ *,
+ system_lib: Optional[bool] = None,
):
"""
Internal codegen function to make executable.
@@ -236,7 +239,9 @@ def _vmlink(
ext_libs = []
lib = None
if tir_mod is not None:
- lib = tvm.build(tir_mod, target=target,
runtime=_autodetect_system_lib_req(target))
+ lib = tvm.build(
+ tir_mod, target=target, runtime=_autodetect_system_lib_req(target,
system_lib)
+ )
return Executable(_ffi_api.VMLink(builder, target, lib, ext_libs, params))
# type: ignore
@@ -245,6 +250,8 @@ def build(
target: Union[str, tvm.target.Target],
params: Optional[Dict[str, list]] = None,
exec_mode: str = "bytecode",
+ *,
+ system_lib: Optional[bool] = None,
) -> Executable:
"""
Build an IRModule to VM executable.
@@ -270,6 +277,11 @@ def build(
exec_mode: {"bytecode", "compiled"}
The execution mode.
+ system_lib: Optional[bool]
+ Whether to build system lib that is being packed statically and
+ auto registers generated functions to the system.
+ By default auto detects based on the target.
+
Returns
-------
ex: tvm.relax.Executable
@@ -322,7 +334,7 @@ def build(
builder = relax.ExecBuilder()
leftover_mod = _vmcodegen(builder, new_mod, exec_mode=exec_mode)
tir_mod = _filter_tir(leftover_mod)
- return _vmlink(builder, target, tir_mod, ext_libs, params)
+ return _vmlink(builder, target, tir_mod, ext_libs, params,
system_lib=system_lib)
def _filter_tir(mod: tvm.IRModule) -> tvm.IRModule:
