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linedance-app/venv/lib/python3.12/site-packages/llvmlite/binding/config.py

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+import os
+import warnings
+from functools import cache
+from ctypes import c_int, c_char_p
+from llvmlite.binding import ffi
+
+# these are here as they cannot be lazy bound as the module globals make calls
+# to the LLVMPY API functions
+ffi.lib.LLVMPY_HasSVMLSupport.argtypes = ()
+ffi.lib.LLVMPY_HasSVMLSupport.restype = c_int
+
+ffi.lib.LLVMPY_IsStaticLibstdcxxLinkageBuild.argtypes = ()
+ffi.lib.LLVMPY_IsStaticLibstdcxxLinkageBuild.restype = c_int
+
+ffi.lib.LLVMPY_IsDynamicLLVMLinkageBuild.argtypes = ()
+ffi.lib.LLVMPY_IsDynamicLLVMLinkageBuild.restype = c_int
+
+ffi.lib.LLVMPY_PackageFormat.argtypes = ()
+ffi.lib.LLVMPY_PackageFormat.restype = c_char_p
+
+ffi.lib.LLVMPY_LlvmAssertionsState.argtypes = ()
+ffi.lib.LLVMPY_LlvmAssertionsState.restype = c_char_p
+
+
+def _has_svml():
+    """
+    Returns True if SVML was enabled at FFI support compile time.
+    """
+    if ffi.lib.LLVMPY_HasSVMLSupport() == 0:
+        return False
+    else:
+        return True
+
+
+has_svml = _has_svml()
+
+
+def _build_llvm_linkage_type():
+    """
+    Returns "static" if the FFI support is statically linked against LLVM,
+    returns "dynamic" otherwise.
+    """
+    if ffi.lib.LLVMPY_IsDynamicLLVMLinkageBuild() == 0:
+        return "static"
+    else:
+        return "dynamic"
+
+
+build_llvm_linkage_type = _build_llvm_linkage_type()
+
+
+def _build_libstdcxx_linkage_type():
+    """
+    Returns "static" if the FFI support is statically linked against libstdc++,
+    returns "dynamic" otherwise.
+    """
+    if ffi.lib.LLVMPY_IsStaticLibstdcxxLinkageBuild() == 1:
+        return "static"
+    else:
+        return "dynamic"
+
+
+build_libstdcxx_linkage_type = _build_libstdcxx_linkage_type()
+
+
+def _package_format():
+    """
+    Returns "wheel", "conda" or "unspecified"
+    """
+    return ffi.lib.LLVMPY_PackageFormat().decode()
+
+
+package_format = _package_format()
+
+
+def _llvm_assertions_state():
+    """
+    Returns one of "on", "off" or "unknown". Depending on whether it is
+    determined that LLVM was build with assertions on, off, or is not known.
+    "Is not known" is typically from a dynamic linkage against LLVM in which
+    case it's not easily identified whether LLVM was built with assertions.
+    """
+    return ffi.lib.LLVMPY_LlvmAssertionsState().decode()
+
+
+llvm_assertions_state = _llvm_assertions_state()
+
+
+@cache
+def get_sysinfo():
+    d = dict()
+    d["ffi_lib_location"] = ffi.lib._name
+    d["package_format"] = package_format
+    d["llvm_linkage_type"] = build_llvm_linkage_type
+    d["libstdcxx_linkage_type"] = build_libstdcxx_linkage_type
+    d["llvm_assertions_state"] = llvm_assertions_state
+
+    # import lief
+    HAVE_LIEF = False
+    try:
+        import lief
+        HAVE_LIEF = True
+    except ImportError:
+        msg = "py-lief package not found, sysinfo is limited as a result"
+        warnings.warn(msg)
+
+    d["lief_probe_status"] = HAVE_LIEF
+    d["linked_libraries"] = None
+    d["canonicalised_linked_libraries"] = None
+
+    def canonicalise_library_type(dso):
+        """Canonicalises the representation of the binary::libraries as a
+        sequence of strings"""
+        # Note lief v16:
+        # Mach-O .libraries are DylibCommand instances.
+        # Windows PE and Linux ELF .libraries are strings.
+        return [getattr(x, "name", x) for x in dso.libraries]
+
+    def canonicalise_library_spelling(libs):
+        # This adjusts the library "spelling" so that it just contains the
+        # name given to the linker. e.g. `@rpath/somewhere/libfoo.so.1.3`
+        # would be canonicalised to "foo".
+        fixes = []
+        for lib in libs:
+            # some libraries, e.g. Mach-O have an @rpath or system path
+            # prefix in their name, remove it.
+            path_stripped = os.path.split(lib)[-1]
+            # Assume all library names contain at least one dot, even if they
+            # don't it's fine, the first part is the piece of interest.
+            prefix_libname = path_stripped.split(".")[0]
+            linker_name = prefix_libname.replace("lib", "").replace("LIB", "")
+            # further canonicalize by referring to all libraries in lower case.
+            fixes.append(linker_name.lower())
+        return fixes
+
+    if HAVE_LIEF:
+        dso = lief.parse(d["ffi_lib_location"])
+        link_libs = tuple(canonicalise_library_type(dso))
+        d["linked_libraries"] = link_libs
+        canonicalised_libs = canonicalise_library_spelling(link_libs)
+        d["canonicalised_linked_libraries"] = canonicalised_libs
+
+    return d