Author: Jonas Devlieghere Date: 2022-03-15T09:06:29-07:00 New Revision: c22c7a61b6d9c90d5d4292205c63cd576f4fd05b
URL: https://github.com/llvm/llvm-project/commit/c22c7a61b6d9c90d5d4292205c63cd576f4fd05b DIFF: https://github.com/llvm/llvm-project/commit/c22c7a61b6d9c90d5d4292205c63cd576f4fd05b.diff LOG: [lldb] Fix platform selection on Apple Silicon (again) This patch is another attempt to fix platform selection on Apple Silicon. It partially undoes D117340 which tried to fix the issue by always instantiating a remote-ios platform for "iPhone and iPad Apps on Apple Silicon Macs". While the previous patch worked for attaching, it broke launching and everything else that expects the remote platform to be connected. I made an attempt to work around that, but quickly found out that there were just too may places that had this assumption baked in. This patch takes a different approach and reverts back to marking the host platform compatible with iOS triples. This brings us back to the original situation where platform selection was broken for remote iOS debugging on Apple Silicon. To fix that, we now look at the process' host architecture to differentiate between iOS binaries running remotely and iOS binaries running locally. I tested the following scenarios, which now all uses the desired platform: - Launching an iOS binary on macOS: uses the host platform - Attaching to an iOS binary on macOS: uses the host platform - Attaching to a remote iOS binary: uses the remote-ios platform rdar://89840215 Differential revision: https://reviews.llvm.org/D121444 Added: lldb/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py lldb/lldb/unittests/Platform/PlatformMacOSXTest.cpp lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py lldb/unittests/Platform/PlatformMacOSXTest.cpp Modified: lldb/source/Plugins/Platform/MacOSX/PlatformMacOSX.cpp lldb/unittests/Platform/CMakeLists.txt Removed: ################################################################################ diff --git a/lldb/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py b/lldb/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py new file mode 100644 index 0000000000000..3d3de0a9707c0 --- /dev/null +++ b/lldb/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py @@ -0,0 +1,60 @@ +import lldb +from lldbsuite.test.lldbtest import * +from lldbsuite.test.decorators import * +from lldbsuite.test.gdbclientutils import * +from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase + + +class TestPlatformMacOSX(GDBRemoteTestBase): + + mydir = TestBase.compute_mydir(__file__) + + class MyResponder(MockGDBServerResponder): + + def __init__(self, host): + self.host_ostype = host + MockGDBServerResponder.__init__(self) + + def respond(self, packet): + if packet == "qProcessInfo": + return self.qProcessInfo() + return MockGDBServerResponder.respond(self, packet) + + def qHostInfo(self): + return "cputype:16777223;cpusubtype:2;ostype:%s;vendor:apple;os_version:10.15.4;maccatalyst_version:13.4;endian:little;ptrsize:8;" % self.host_ostype + + def qProcessInfo(self): + return "pid:a860;parent-pid:d2a0;real-uid:1f5;real-gid:14;effective-uid:1f5;effective-gid:14;cputype:100000c;cpusubtype:2;ptrsize:8;ostype:ios;vendor:apple;endian:little;" + + def vCont(self): + return "vCont;" + + def platform_test(self, host, expected_triple, expected_platform): + self.server.responder = self.MyResponder(host) + if self.TraceOn(): + self.runCmd("log enable gdb-remote packets") + self.addTearDownHook( + lambda: self.runCmd("log disable gdb-remote packets")) + + target = self.dbg.CreateTargetWithFileAndArch(None, None) + process = self.connect(target) + + triple = target.GetTriple() + self.assertEqual(triple, expected_triple) + + platform = target.GetPlatform() + self.assertEqual(platform.GetName(), expected_platform) + + @skipIfRemote + def test_ios(self): + self.platform_test(host="ios", + expected_triple="arm64e-apple-ios-", + expected_platform="remote-ios") + + @skipIfRemote + @skipUnlessDarwin + @skipUnlessArch("arm64") + def test_macos(self): + self.platform_test(host="macosx", + expected_triple="arm64e-apple-ios-", + expected_platform="host") diff --git a/lldb/lldb/unittests/Platform/PlatformMacOSXTest.cpp b/lldb/lldb/unittests/Platform/PlatformMacOSXTest.cpp new file mode 100644 index 0000000000000..e35489a47d87e --- /dev/null +++ b/lldb/lldb/unittests/Platform/PlatformMacOSXTest.cpp @@ -0,0 +1,52 @@ +//===-- PlatformMacOSXTest.cpp ------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "gtest/gtest.h" + +#include "Plugins/Platform/MacOSX/PlatformMacOSX.h" +#include "TestingSupport/SubsystemRAII.h" +#include "lldb/Host/FileSystem.h" +#include "lldb/Host/HostInfo.h" +#include "lldb/Target/Platform.h" + +using namespace lldb; +using namespace lldb_private; + +class PlatformMacOSXTest : public ::testing::Test { + SubsystemRAII<FileSystem, HostInfo, PlatformMacOSX> subsystems; +}; + +static bool containsArch(const std::vector<ArchSpec> &archs, + const ArchSpec &arch) { + return std::find_if(archs.begin(), archs.end(), [&](const ArchSpec &other) { + return arch.IsExactMatch(other); + }) != archs.end(); +} + +TEST_F(PlatformMacOSXTest, TestGetSupportedArchitectures) { + PlatformMacOSX platform; + + const ArchSpec x86_macosx_arch("x86_64-apple-macosx"); + + EXPECT_TRUE(containsArch(platform.GetSupportedArchitectures(x86_macosx_arch), + x86_macosx_arch)); + EXPECT_TRUE( + containsArch(platform.GetSupportedArchitectures({}), x86_macosx_arch)); + +#if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) + const ArchSpec arm64_macosx_arch("arm64-apple-macosx"); + const ArchSpec arm64_ios_arch("arm64-apple-ios"); + + EXPECT_TRUE(containsArch( + platform.GetSupportedArchitectures(arm64_macosx_arch), arm64_ios_arch)); + EXPECT_TRUE( + containsArch(platform.GetSupportedArchitectures({}), arm64_ios_arch)); + EXPECT_FALSE(containsArch(platform.GetSupportedArchitectures(arm64_ios_arch), + arm64_ios_arch)); +#endif +} diff --git a/lldb/source/Plugins/Platform/MacOSX/PlatformMacOSX.cpp b/lldb/source/Plugins/Platform/MacOSX/PlatformMacOSX.cpp index 572f3cb0deccf..e48036ebaec1b 100644 --- a/lldb/source/Plugins/Platform/MacOSX/PlatformMacOSX.cpp +++ b/lldb/source/Plugins/Platform/MacOSX/PlatformMacOSX.cpp @@ -137,8 +137,6 @@ std::vector<ArchSpec> PlatformMacOSX::GetSupportedArchitectures(const ArchSpec &process_host_arch) { std::vector<ArchSpec> result; #if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) - // macOS for ARM64 support both native and translated x86_64 processes - // When cmdline lldb is run on iOS, watchOS, etc, it is still // using "PlatformMacOSX". llvm::Triple::OSType host_os = GetHostOSType(); @@ -152,6 +150,16 @@ PlatformMacOSX::GetSupportedArchitectures(const ArchSpec &process_host_arch) { result.push_back(ArchSpec("x86_64-apple-ios-macabi")); result.push_back(ArchSpec("arm64-apple-ios-macabi")); result.push_back(ArchSpec("arm64e-apple-ios-macabi")); + + // On Apple Silicon, the host platform is compatible with iOS triples to + // support unmodified "iPhone and iPad Apps on Apple Silicon Macs". Because + // the binaries are identical, we must rely on the host architecture to + // tell them apart and mark the host platform as compatible or not. + if (!process_host_arch || + process_host_arch.GetTriple().getOS() == llvm::Triple::MacOSX) { + result.push_back(ArchSpec("arm64-apple-ios")); + result.push_back(ArchSpec("arm64e-apple-ios")); + } } #else x86GetSupportedArchitectures(result); diff --git a/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py b/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py new file mode 100644 index 0000000000000..3d3de0a9707c0 --- /dev/null +++ b/lldb/test/API/functionalities/gdb_remote_client/TestPlatformMacOSX.py @@ -0,0 +1,60 @@ +import lldb +from lldbsuite.test.lldbtest import * +from lldbsuite.test.decorators import * +from lldbsuite.test.gdbclientutils import * +from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase + + +class TestPlatformMacOSX(GDBRemoteTestBase): + + mydir = TestBase.compute_mydir(__file__) + + class MyResponder(MockGDBServerResponder): + + def __init__(self, host): + self.host_ostype = host + MockGDBServerResponder.__init__(self) + + def respond(self, packet): + if packet == "qProcessInfo": + return self.qProcessInfo() + return MockGDBServerResponder.respond(self, packet) + + def qHostInfo(self): + return "cputype:16777223;cpusubtype:2;ostype:%s;vendor:apple;os_version:10.15.4;maccatalyst_version:13.4;endian:little;ptrsize:8;" % self.host_ostype + + def qProcessInfo(self): + return "pid:a860;parent-pid:d2a0;real-uid:1f5;real-gid:14;effective-uid:1f5;effective-gid:14;cputype:100000c;cpusubtype:2;ptrsize:8;ostype:ios;vendor:apple;endian:little;" + + def vCont(self): + return "vCont;" + + def platform_test(self, host, expected_triple, expected_platform): + self.server.responder = self.MyResponder(host) + if self.TraceOn(): + self.runCmd("log enable gdb-remote packets") + self.addTearDownHook( + lambda: self.runCmd("log disable gdb-remote packets")) + + target = self.dbg.CreateTargetWithFileAndArch(None, None) + process = self.connect(target) + + triple = target.GetTriple() + self.assertEqual(triple, expected_triple) + + platform = target.GetPlatform() + self.assertEqual(platform.GetName(), expected_platform) + + @skipIfRemote + def test_ios(self): + self.platform_test(host="ios", + expected_triple="arm64e-apple-ios-", + expected_platform="remote-ios") + + @skipIfRemote + @skipUnlessDarwin + @skipUnlessArch("arm64") + def test_macos(self): + self.platform_test(host="macosx", + expected_triple="arm64e-apple-ios-", + expected_platform="host") diff --git a/lldb/unittests/Platform/CMakeLists.txt b/lldb/unittests/Platform/CMakeLists.txt index f63ac3b3a2808..3c23c46916d86 100644 --- a/lldb/unittests/Platform/CMakeLists.txt +++ b/lldb/unittests/Platform/CMakeLists.txt @@ -1,6 +1,7 @@ add_lldb_unittest(LLDBPlatformTests PlatformAppleSimulatorTest.cpp PlatformDarwinTest.cpp + PlatformMacOSXTest.cpp PlatformSiginfoTest.cpp LINK_LIBS diff --git a/lldb/unittests/Platform/PlatformMacOSXTest.cpp b/lldb/unittests/Platform/PlatformMacOSXTest.cpp new file mode 100644 index 0000000000000..e35489a47d87e --- /dev/null +++ b/lldb/unittests/Platform/PlatformMacOSXTest.cpp @@ -0,0 +1,52 @@ +//===-- PlatformMacOSXTest.cpp ------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "gtest/gtest.h" + +#include "Plugins/Platform/MacOSX/PlatformMacOSX.h" +#include "TestingSupport/SubsystemRAII.h" +#include "lldb/Host/FileSystem.h" +#include "lldb/Host/HostInfo.h" +#include "lldb/Target/Platform.h" + +using namespace lldb; +using namespace lldb_private; + +class PlatformMacOSXTest : public ::testing::Test { + SubsystemRAII<FileSystem, HostInfo, PlatformMacOSX> subsystems; +}; + +static bool containsArch(const std::vector<ArchSpec> &archs, + const ArchSpec &arch) { + return std::find_if(archs.begin(), archs.end(), [&](const ArchSpec &other) { + return arch.IsExactMatch(other); + }) != archs.end(); +} + +TEST_F(PlatformMacOSXTest, TestGetSupportedArchitectures) { + PlatformMacOSX platform; + + const ArchSpec x86_macosx_arch("x86_64-apple-macosx"); + + EXPECT_TRUE(containsArch(platform.GetSupportedArchitectures(x86_macosx_arch), + x86_macosx_arch)); + EXPECT_TRUE( + containsArch(platform.GetSupportedArchitectures({}), x86_macosx_arch)); + +#if defined(__arm__) || defined(__arm64__) || defined(__aarch64__) + const ArchSpec arm64_macosx_arch("arm64-apple-macosx"); + const ArchSpec arm64_ios_arch("arm64-apple-ios"); + + EXPECT_TRUE(containsArch( + platform.GetSupportedArchitectures(arm64_macosx_arch), arm64_ios_arch)); + EXPECT_TRUE( + containsArch(platform.GetSupportedArchitectures({}), arm64_ios_arch)); + EXPECT_FALSE(containsArch(platform.GetSupportedArchitectures(arm64_ios_arch), + arm64_ios_arch)); +#endif +} _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
