98e50a7d4c
Honor the CPU type (and subtype) when launching the inferior on macOS.
Part of this functionality was thought to be no longer needed and
removed in 85bd436961, however it's still
needed, for example to launch binaries under Rosetta 2 on Apple Silicon.
This patch will use posix_spawnattr_setarchpref_np if available and
fallback to posix_spawnattr_setbinpref_np if not.
Differential revision: https://reviews.llvm.org/D95922
74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
import contextlib
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import os
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import unittest2
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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def haswell():
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features = subprocess.check_output(["sysctl", "machdep.cpu"])
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return "AVX2" in features.decode('utf-8')
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def apple_silicon():
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features = subprocess.check_output(["sysctl", "machdep.cpu"])
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return "Apple M" in features.decode('utf-8')
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@contextlib.contextmanager
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def remove_from_env(var):
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old_environ = os.environ.copy()
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del os.environ[var]
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try:
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yield
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finally:
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os.environ.clear()
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os.environ.update(old_environ)
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class TestLaunchProcessPosixSpawn(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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mydir = TestBase.compute_mydir(__file__)
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def no_haswell(self):
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if not haswell():
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return "Current CPU is not Haswell"
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return None
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def no_apple_silicon(self):
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if not apple_silicon():
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return "Current CPU is not Apple Silicon"
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return None
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def run_arch(self, exe, arch):
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self.runCmd('target create -arch {} {}'.format(arch, exe))
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self.runCmd('run')
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process = self.dbg.GetSelectedTarget().process
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self.assertEqual(process.GetState(), lldb.eStateExited)
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self.assertIn('slice: {}'.format(arch), process.GetSTDOUT(1000))
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@skipUnlessDarwin
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@skipIfDarwinEmbedded
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@skipTestIfFn(no_haswell)
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def test_haswell(self):
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self.build()
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exe = self.getBuildArtifact("fat.out")
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self.run_arch(exe, 'x86_64')
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self.run_arch(exe, 'x86_64h')
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@skipUnlessDarwin
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@skipIfDarwinEmbedded
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@skipTestIfFn(no_apple_silicon)
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def test_apple_silicon(self):
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self.build()
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exe = self.getBuildArtifact("fat.out")
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# We need to remove LLDB_DEBUGSERVER_PATH from the environment if it's
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# set so that the Rosetta debugserver is picked for x86_64.
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with remove_from_env('LLDB_DEBUGSERVER_PATH'):
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self.run_arch(exe, 'x86_64')
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self.run_arch(exe, 'arm64')
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