diff --git a/lldb/include/lldb/Target/Platform.h b/lldb/include/lldb/Target/Platform.h index d50badb1e6878..4ef6c9d82b1a3 100644 --- a/lldb/include/lldb/Target/Platform.h +++ b/lldb/include/lldb/Target/Platform.h @@ -863,6 +863,8 @@ class Platform : public PluginInterface { return nullptr; } + virtual CompilerType GetSiginfoType(const llvm::Triple &triple); + protected: /// Create a list of ArchSpecs with the given OS and a architectures. The /// vendor field is left as an "unspecified unknown". diff --git a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp index 754d06de7cb92..2bf0a44e4a3e0 100644 --- a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp +++ b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp @@ -183,3 +183,97 @@ MmapArgList PlatformFreeBSD::GetMmapArgumentList(const ArchSpec &arch, args.push_back(0); return args; } + +CompilerType PlatformFreeBSD::GetSiginfoType(const llvm::Triple &triple) { + if (!m_type_system_up) + m_type_system_up.reset(new TypeSystemClang("siginfo", triple)); + TypeSystemClang *ast = m_type_system_up.get(); + + // generic types + CompilerType int_type = ast->GetBasicType(eBasicTypeInt); + CompilerType uint_type = ast->GetBasicType(eBasicTypeUnsignedInt); + CompilerType long_type = ast->GetBasicType(eBasicTypeLong); + CompilerType voidp_type = ast->GetBasicType(eBasicTypeVoid).GetPointerType(); + + // platform-specific types + CompilerType &pid_type = int_type; + CompilerType &uid_type = uint_type; + + CompilerType sigval_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "__lldb_sigval_t", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(sigval_type); + ast->AddFieldToRecordType(sigval_type, "sival_int", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(sigval_type, "sival_ptr", voidp_type, + lldb::eAccessPublic, 0); + ast->CompleteTagDeclarationDefinition(sigval_type); + + // siginfo_t + CompilerType siginfo_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "__lldb_siginfo_t", + clang::TTK_Struct, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(siginfo_type); + ast->AddFieldToRecordType(siginfo_type, "si_signo", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_errno", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_code", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_pid", pid_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_uid", uid_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_status", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_addr", voidp_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_value", sigval_type, + lldb::eAccessPublic, 0); + + // union used to hold the signal data + CompilerType union_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(union_type); + + ast->AddFieldToRecordType( + union_type, "_fault", + ast->CreateStructForIdentifier(ConstString(), + { + {"_trapno", int_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_timer", + ast->CreateStructForIdentifier(ConstString(), + { + {"_timerid", int_type}, + {"_overrun", int_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_mesgq", + ast->CreateStructForIdentifier(ConstString(), + { + {"_mqd", int_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_poll", + ast->CreateStructForIdentifier(ConstString(), + { + {"_band", long_type}, + }), + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(union_type); + ast->AddFieldToRecordType(siginfo_type, "_reason", union_type, + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(siginfo_type); + return siginfo_type; +} diff --git a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h index fd37b13de0177..7f9dfd87a59a0 100644 --- a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h +++ b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h @@ -10,6 +10,7 @@ #define LLDB_SOURCE_PLUGINS_PLATFORM_FREEBSD_PLATFORMFREEBSD_H #include "Plugins/Platform/POSIX/PlatformPOSIX.h" +#include "Plugins/TypeSystem/Clang/TypeSystemClang.h" namespace lldb_private { namespace platform_freebsd { @@ -53,7 +54,12 @@ class PlatformFreeBSD : public PlatformPOSIX { unsigned flags, lldb::addr_t fd, lldb::addr_t offset) override; + CompilerType GetSiginfoType(const llvm::Triple &triple) override; + std::vector m_supported_architectures; + +private: + std::unique_ptr m_type_system_up; }; } // namespace platform_freebsd diff --git a/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp b/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp index 6278d51289d76..92f44b7c6b50f 100644 --- a/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp +++ b/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp @@ -309,3 +309,169 @@ MmapArgList PlatformLinux::GetMmapArgumentList(const ArchSpec &arch, return args; } +CompilerType PlatformLinux::GetSiginfoType(const llvm::Triple &triple) { + if (!m_type_system_up) + m_type_system_up.reset(new TypeSystemClang("siginfo", triple)); + TypeSystemClang *ast = m_type_system_up.get(); + + bool si_errno_then_code = true; + + switch (triple.getArch()) { + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + // mips has si_code and si_errno swapped + si_errno_then_code = false; + break; + default: + break; + } + + // generic types + CompilerType int_type = ast->GetBasicType(eBasicTypeInt); + CompilerType uint_type = ast->GetBasicType(eBasicTypeUnsignedInt); + CompilerType short_type = ast->GetBasicType(eBasicTypeShort); + CompilerType long_type = ast->GetBasicType(eBasicTypeLong); + CompilerType voidp_type = ast->GetBasicType(eBasicTypeVoid).GetPointerType(); + + // platform-specific types + CompilerType &pid_type = int_type; + CompilerType &uid_type = uint_type; + CompilerType &clock_type = long_type; + CompilerType &band_type = long_type; + + CompilerType sigval_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "__lldb_sigval_t", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(sigval_type); + ast->AddFieldToRecordType(sigval_type, "sival_int", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(sigval_type, "sival_ptr", voidp_type, + lldb::eAccessPublic, 0); + ast->CompleteTagDeclarationDefinition(sigval_type); + + CompilerType sigfault_bounds_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(sigfault_bounds_type); + ast->AddFieldToRecordType(sigfault_bounds_type, "_addr_bnd", + ast->CreateStructForIdentifier(ConstString(), + { + {"_lower", voidp_type}, + {"_upper", voidp_type}, + }), + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(sigfault_bounds_type, "_pkey", uint_type, + lldb::eAccessPublic, 0); + ast->CompleteTagDeclarationDefinition(sigfault_bounds_type); + + // siginfo_t + CompilerType siginfo_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "__lldb_siginfo_t", + clang::TTK_Struct, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(siginfo_type); + ast->AddFieldToRecordType(siginfo_type, "si_signo", int_type, + lldb::eAccessPublic, 0); + + if (si_errno_then_code) { + ast->AddFieldToRecordType(siginfo_type, "si_errno", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_code", int_type, + lldb::eAccessPublic, 0); + } else { + ast->AddFieldToRecordType(siginfo_type, "si_code", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(siginfo_type, "si_errno", int_type, + lldb::eAccessPublic, 0); + } + + // the structure is padded on 64-bit arches to fix alignment + if (triple.isArch64Bit()) + ast->AddFieldToRecordType(siginfo_type, "__pad0", int_type, + lldb::eAccessPublic, 0); + + // union used to hold the signal data + CompilerType union_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(union_type); + + ast->AddFieldToRecordType( + union_type, "_kill", + ast->CreateStructForIdentifier(ConstString(), + { + {"si_pid", pid_type}, + {"si_uid", uid_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_timer", + ast->CreateStructForIdentifier(ConstString(), + { + {"si_tid", int_type}, + {"si_overrun", int_type}, + {"si_sigval", sigval_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_rt", + ast->CreateStructForIdentifier(ConstString(), + { + {"si_pid", pid_type}, + {"si_uid", uid_type}, + {"si_sigval", sigval_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_sigchld", + ast->CreateStructForIdentifier(ConstString(), + { + {"si_pid", pid_type}, + {"si_uid", uid_type}, + {"si_status", int_type}, + {"si_utime", clock_type}, + {"si_stime", clock_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_sigfault", + ast->CreateStructForIdentifier(ConstString(), + { + {"si_addr", voidp_type}, + {"si_addr_lsb", short_type}, + {"_bounds", sigfault_bounds_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_sigpoll", + ast->CreateStructForIdentifier(ConstString(), + { + {"si_band", band_type}, + {"si_fd", int_type}, + }), + lldb::eAccessPublic, 0); + + // NB: SIGSYS is not present on ia64 but we don't seem to support that + ast->AddFieldToRecordType( + union_type, "_sigsys", + ast->CreateStructForIdentifier(ConstString(), + { + {"_call_addr", voidp_type}, + {"_syscall", int_type}, + {"_arch", uint_type}, + }), + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(union_type); + ast->AddFieldToRecordType(siginfo_type, "_sifields", union_type, + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(siginfo_type); + return siginfo_type; +} diff --git a/lldb/source/Plugins/Platform/Linux/PlatformLinux.h b/lldb/source/Plugins/Platform/Linux/PlatformLinux.h index 13224901cd926..87d0926e3a8ed 100644 --- a/lldb/source/Plugins/Platform/Linux/PlatformLinux.h +++ b/lldb/source/Plugins/Platform/Linux/PlatformLinux.h @@ -10,6 +10,7 @@ #define LLDB_SOURCE_PLUGINS_PLATFORM_LINUX_PLATFORMLINUX_H #include "Plugins/Platform/POSIX/PlatformPOSIX.h" +#include "Plugins/TypeSystem/Clang/TypeSystemClang.h" namespace lldb_private { namespace platform_linux { @@ -58,7 +59,12 @@ class PlatformLinux : public PlatformPOSIX { unsigned flags, lldb::addr_t fd, lldb::addr_t offset) override; + CompilerType GetSiginfoType(const llvm::Triple &triple) override; + std::vector m_supported_architectures; + +private: + std::unique_ptr m_type_system_up; }; } // namespace platform_linux diff --git a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp index 552b3890615c7..ddba64bc5d111 100644 --- a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp +++ b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp @@ -202,3 +202,144 @@ MmapArgList PlatformNetBSD::GetMmapArgumentList(const ArchSpec &arch, MmapArgList args({addr, length, prot, flags_platform, fd, offset}); return args; } + +CompilerType PlatformNetBSD::GetSiginfoType(const llvm::Triple &triple) { + if (!m_type_system_up) + m_type_system_up.reset(new TypeSystemClang("siginfo", triple)); + TypeSystemClang *ast = m_type_system_up.get(); + + // generic types + CompilerType int_type = ast->GetBasicType(eBasicTypeInt); + CompilerType uint_type = ast->GetBasicType(eBasicTypeUnsignedInt); + CompilerType long_type = ast->GetBasicType(eBasicTypeLong); + CompilerType long_long_type = ast->GetBasicType(eBasicTypeLongLong); + CompilerType voidp_type = ast->GetBasicType(eBasicTypeVoid).GetPointerType(); + + // platform-specific types + CompilerType &pid_type = int_type; + CompilerType &uid_type = uint_type; + CompilerType &clock_type = uint_type; + CompilerType &lwpid_type = int_type; + + CompilerType sigval_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "__lldb_sigval_t", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(sigval_type); + ast->AddFieldToRecordType(sigval_type, "sival_int", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(sigval_type, "sival_ptr", voidp_type, + lldb::eAccessPublic, 0); + ast->CompleteTagDeclarationDefinition(sigval_type); + + CompilerType ptrace_option_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(ptrace_option_type); + ast->AddFieldToRecordType(ptrace_option_type, "_pe_other_pid", pid_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(ptrace_option_type, "_pe_lwp", lwpid_type, + lldb::eAccessPublic, 0); + ast->CompleteTagDeclarationDefinition(ptrace_option_type); + + // siginfo_t + CompilerType siginfo_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "__lldb_siginfo_t", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(siginfo_type); + + // struct _ksiginfo + CompilerType ksiginfo_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "", + clang::TTK_Struct, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(ksiginfo_type); + ast->AddFieldToRecordType(ksiginfo_type, "_signo", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(ksiginfo_type, "_code", int_type, + lldb::eAccessPublic, 0); + ast->AddFieldToRecordType(ksiginfo_type, "_errno", int_type, + lldb::eAccessPublic, 0); + + // the structure is padded on 64-bit arches to fix alignment + if (triple.isArch64Bit()) + ast->AddFieldToRecordType(ksiginfo_type, "__pad0", int_type, + lldb::eAccessPublic, 0); + + // union used to hold the signal data + CompilerType union_type = ast->CreateRecordType( + nullptr, OptionalClangModuleID(), lldb::eAccessPublic, "", + clang::TTK_Union, lldb::eLanguageTypeC); + ast->StartTagDeclarationDefinition(union_type); + + ast->AddFieldToRecordType( + union_type, "_rt", + ast->CreateStructForIdentifier(ConstString(), + { + {"_pid", pid_type}, + {"_uid", uid_type}, + {"_value", sigval_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_child", + ast->CreateStructForIdentifier(ConstString(), + { + {"_pid", pid_type}, + {"_uid", uid_type}, + {"_status", int_type}, + {"_utime", clock_type}, + {"_stime", clock_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_fault", + ast->CreateStructForIdentifier(ConstString(), + { + {"_addr", voidp_type}, + {"_trap", int_type}, + {"_trap2", int_type}, + {"_trap3", int_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_poll", + ast->CreateStructForIdentifier(ConstString(), + { + {"_band", long_type}, + {"_fd", int_type}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType(union_type, "_syscall", + ast->CreateStructForIdentifier( + ConstString(), + { + {"_sysnum", int_type}, + {"_retval", int_type.GetArrayType(2)}, + {"_error", int_type}, + {"_args", long_long_type.GetArrayType(8)}, + }), + lldb::eAccessPublic, 0); + + ast->AddFieldToRecordType( + union_type, "_ptrace_state", + ast->CreateStructForIdentifier(ConstString(), + { + {"_pe_report_event", int_type}, + {"_option", ptrace_option_type}, + }), + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(union_type); + ast->AddFieldToRecordType(ksiginfo_type, "_reason", union_type, + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(ksiginfo_type); + ast->AddFieldToRecordType(siginfo_type, "_info", ksiginfo_type, + lldb::eAccessPublic, 0); + + ast->CompleteTagDeclarationDefinition(siginfo_type); + return siginfo_type; +} diff --git a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h index 7158fbd26efbb..433cf66531262 100644 --- a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h +++ b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h @@ -10,6 +10,7 @@ #define LLDB_SOURCE_PLUGINS_PLATFORM_NETBSD_PLATFORMNETBSD_H #include "Plugins/Platform/POSIX/PlatformPOSIX.h" +#include "Plugins/TypeSystem/Clang/TypeSystemClang.h" namespace lldb_private { namespace platform_netbsd { @@ -55,7 +56,12 @@ class PlatformNetBSD : public PlatformPOSIX { unsigned flags, lldb::addr_t fd, lldb::addr_t offset) override; + CompilerType GetSiginfoType(const llvm::Triple &triple) override; + std::vector m_supported_architectures; + +private: + std::unique_ptr m_type_system_up; }; } // namespace platform_netbsd diff --git a/lldb/source/Target/Platform.cpp b/lldb/source/Target/Platform.cpp index 00e1c16032275..3c331c8760dfa 100644 --- a/lldb/source/Target/Platform.cpp +++ b/lldb/source/Target/Platform.cpp @@ -2003,3 +2003,7 @@ size_t Platform::GetSoftwareBreakpointTrapOpcode(Target &target, return 0; } + +CompilerType Platform::GetSiginfoType(const llvm::Triple& triple) { + return CompilerType(); +} diff --git a/lldb/unittests/Platform/CMakeLists.txt b/lldb/unittests/Platform/CMakeLists.txt index ca5031b9b43e0..f63ac3b3a2808 100644 --- a/lldb/unittests/Platform/CMakeLists.txt +++ b/lldb/unittests/Platform/CMakeLists.txt @@ -1,9 +1,13 @@ add_lldb_unittest(LLDBPlatformTests PlatformAppleSimulatorTest.cpp PlatformDarwinTest.cpp + PlatformSiginfoTest.cpp LINK_LIBS + lldbPluginPlatformFreeBSD + lldbPluginPlatformLinux lldbPluginPlatformMacOSX + lldbPluginPlatformNetBSD LINK_COMPONENTS Support ) diff --git a/lldb/unittests/Platform/PlatformSiginfoTest.cpp b/lldb/unittests/Platform/PlatformSiginfoTest.cpp new file mode 100644 index 0000000000000..e8a5a88f34c42 --- /dev/null +++ b/lldb/unittests/Platform/PlatformSiginfoTest.cpp @@ -0,0 +1,311 @@ +//===-- PlatformSiginfoTest.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 +#include + +#include "Plugins/Platform/FreeBSD/PlatformFreeBSD.h" +#include "Plugins/Platform/Linux/PlatformLinux.h" +#include "Plugins/Platform/NetBSD/PlatformNetBSD.h" +#include "Plugins/TypeSystem/Clang/TypeSystemClang.h" + +#include "TestingSupport/SubsystemRAII.h" +#include "lldb/Core/Debugger.h" +#include "lldb/Host/FileSystem.h" +#include "lldb/Host/HostInfo.h" +#include "lldb/Utility/ArchSpec.h" +#include "lldb/Utility/Reproducer.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::repro; + +namespace { +class PlatformSiginfoTest : public ::testing::Test { + SubsystemRAII subsystems; + PlatformSP platform_sp; + DebuggerSP debugger_sp; + TargetSP target_sp; + +public: + CompilerType siginfo_type; + + void SetUp() override { + llvm::cantFail(Reproducer::Initialize(ReproducerMode::Off, llvm::None)); + platform_freebsd::PlatformFreeBSD::Initialize(); + platform_linux::PlatformLinux::Initialize(); + platform_netbsd::PlatformNetBSD::Initialize(); + } + + void TearDown() override { + platform_netbsd::PlatformNetBSD::Terminate(); + platform_linux::PlatformLinux::Terminate(); + platform_freebsd::PlatformFreeBSD::Terminate(); + Reproducer::Terminate(); + } + + typedef std::tuple field_tuple; + + void ExpectField(const CompilerType &siginfo_type, field_tuple field) { + const char *path; + uint64_t offset, size; + std::tie(path, offset, size) = field; + + SCOPED_TRACE(path); + CompilerType field_type = siginfo_type; + uint64_t total_offset = 0; + for (auto field_name : llvm::split(path, '.')) { + uint64_t bit_offset; + ASSERT_NE(field_type.GetIndexOfFieldWithName(field_name.str().c_str(), + &field_type, &bit_offset), + UINT32_MAX); + total_offset += bit_offset; + } + + EXPECT_EQ(total_offset, offset * 8); + EXPECT_EQ(field_type.GetByteSize(nullptr), llvm::Optional(size)); + } + + void ExpectFields(const CompilerType &container, + std::initializer_list fields) { + for (auto x : fields) + ExpectField(container, x); + } + + void InitializeSiginfo(const std::string &triple) { + ArchSpec arch(triple); + + switch (arch.GetTriple().getOS()) { + case llvm::Triple::FreeBSD: + platform_sp = + platform_freebsd::PlatformFreeBSD::CreateInstance(true, &arch); + break; + case llvm::Triple::Linux: + platform_sp = platform_linux::PlatformLinux::CreateInstance(true, &arch); + break; + case llvm::Triple::NetBSD: + platform_sp = + platform_netbsd::PlatformNetBSD::CreateInstance(true, &arch); + break; + default: + llvm_unreachable("unknown ostype in triple"); + } + Platform::SetHostPlatform(platform_sp); + + debugger_sp = Debugger::CreateInstance(); + ASSERT_TRUE(debugger_sp); + + debugger_sp->GetTargetList().CreateTarget( + *debugger_sp, "", arch, eLoadDependentsNo, platform_sp, target_sp); + ASSERT_TRUE(target_sp); + + siginfo_type = platform_sp->GetSiginfoType(arch.GetTriple()); + } +}; + +} // namespace + +TEST_F(PlatformSiginfoTest, TestLinux_64bit) { + for (std::string arch : {"x86_64", "aarch64", "powerpc64le"}) { + SCOPED_TRACE(arch); + InitializeSiginfo(arch + "-pc-linux-gnu"); + ASSERT_TRUE(siginfo_type); + + ExpectFields(siginfo_type, + { + {"si_signo", 0, 4}, + {"si_errno", 4, 4}, + {"si_code", 8, 4}, + {"_sifields._kill.si_pid", 16, 4}, + {"_sifields._kill.si_uid", 20, 4}, + {"_sifields._timer.si_tid", 16, 4}, + {"_sifields._timer.si_overrun", 20, 4}, + {"_sifields._timer.si_sigval", 24, 8}, + {"_sifields._rt.si_pid", 16, 4}, + {"_sifields._rt.si_uid", 20, 4}, + {"_sifields._rt.si_sigval", 24, 8}, + {"_sifields._sigchld.si_pid", 16, 4}, + {"_sifields._sigchld.si_uid", 20, 4}, + {"_sifields._sigchld.si_status", 24, 4}, + {"_sifields._sigchld.si_utime", 32, 8}, + {"_sifields._sigchld.si_stime", 40, 8}, + {"_sifields._sigfault.si_addr", 16, 8}, + {"_sifields._sigfault.si_addr_lsb", 24, 2}, + {"_sifields._sigfault._bounds._addr_bnd._lower", 32, 8}, + {"_sifields._sigfault._bounds._addr_bnd._upper", 40, 8}, + {"_sifields._sigfault._bounds._pkey", 32, 4}, + {"_sifields._sigpoll.si_band", 16, 8}, + {"_sifields._sigpoll.si_fd", 24, 4}, + {"_sifields._sigsys._call_addr", 16, 8}, + {"_sifields._sigsys._syscall", 24, 4}, + {"_sifields._sigsys._arch", 28, 4}, + }); + } +} + +TEST_F(PlatformSiginfoTest, TestLinux_32bit) { + for (std::string arch : {"i386", "armv7"}) { + SCOPED_TRACE(arch); + InitializeSiginfo(arch + "-pc-linux"); + ASSERT_TRUE(siginfo_type); + + ExpectFields(siginfo_type, + { + {"si_signo", 0, 4}, + {"si_errno", 4, 4}, + {"si_code", 8, 4}, + {"_sifields._kill.si_pid", 12, 4}, + {"_sifields._kill.si_uid", 16, 4}, + {"_sifields._timer.si_tid", 12, 4}, + {"_sifields._timer.si_overrun", 16, 4}, + {"_sifields._timer.si_sigval", 20, 4}, + {"_sifields._rt.si_pid", 12, 4}, + {"_sifields._rt.si_uid", 16, 4}, + {"_sifields._rt.si_sigval", 20, 4}, + {"_sifields._sigchld.si_pid", 12, 4}, + {"_sifields._sigchld.si_uid", 16, 4}, + {"_sifields._sigchld.si_status", 20, 4}, + {"_sifields._sigchld.si_utime", 24, 4}, + {"_sifields._sigchld.si_stime", 28, 4}, + {"_sifields._sigfault.si_addr", 12, 4}, + {"_sifields._sigfault.si_addr_lsb", 16, 2}, + {"_sifields._sigfault._bounds._addr_bnd._lower", 20, 4}, + {"_sifields._sigfault._bounds._addr_bnd._upper", 24, 4}, + {"_sifields._sigfault._bounds._pkey", 20, 4}, + {"_sifields._sigpoll.si_band", 12, 4}, + {"_sifields._sigpoll.si_fd", 16, 4}, + {"_sifields._sigsys._call_addr", 12, 4}, + {"_sifields._sigsys._syscall", 16, 4}, + {"_sifields._sigsys._arch", 20, 4}, + }); + } +} + +TEST_F(PlatformSiginfoTest, TestFreeBSD_64bit) { + for (std::string arch : {"x86_64", "aarch64"}) { + SCOPED_TRACE(arch); + InitializeSiginfo("x86_64-unknown-freebsd13.0"); + ASSERT_TRUE(siginfo_type); + + ExpectFields(siginfo_type, { + {"si_signo", 0, 4}, + {"si_errno", 4, 4}, + {"si_code", 8, 4}, + {"si_pid", 12, 4}, + {"si_uid", 16, 4}, + {"si_status", 20, 4}, + {"si_addr", 24, 8}, + {"si_value", 32, 8}, + {"_reason._fault._trapno", 40, 4}, + {"_reason._timer._timerid", 40, 4}, + {"_reason._timer._overrun", 44, 4}, + {"_reason._mesgq._mqd", 40, 4}, + {"_reason._poll._band", 40, 8}, + }); + } +} + +TEST_F(PlatformSiginfoTest, TestFreeBSD_32bit) { + for (std::string arch : {"i386"}) { + SCOPED_TRACE(arch); + InitializeSiginfo(arch + "-unknown-freebsd13.0"); + ASSERT_TRUE(siginfo_type); + + ExpectFields(siginfo_type, { + {"si_signo", 0, 4}, + {"si_errno", 4, 4}, + {"si_code", 8, 4}, + {"si_pid", 12, 4}, + {"si_uid", 16, 4}, + {"si_status", 20, 4}, + {"si_addr", 24, 4}, + {"si_value", 28, 4}, + {"_reason._fault._trapno", 32, 4}, + {"_reason._timer._timerid", 32, 4}, + {"_reason._timer._overrun", 36, 4}, + {"_reason._mesgq._mqd", 32, 4}, + {"_reason._poll._band", 32, 4}, + }); + } +} + +TEST_F(PlatformSiginfoTest, TestNetBSD_64bit) { + for (std::string arch : {"x86_64"}) { + SCOPED_TRACE(arch); + InitializeSiginfo(arch + "-unknown-netbsd9.0"); + ASSERT_TRUE(siginfo_type); + + ExpectFields( + siginfo_type, + { + {"_info._signo", 0, 4}, + {"_info._code", 4, 4}, + {"_info._errno", 8, 4}, + {"_info._reason._rt._pid", 16, 4}, + {"_info._reason._rt._uid", 20, 4}, + {"_info._reason._rt._value", 24, 8}, + {"_info._reason._child._pid", 16, 4}, + {"_info._reason._child._uid", 20, 4}, + {"_info._reason._child._status", 24, 4}, + {"_info._reason._child._utime", 28, 4}, + {"_info._reason._child._stime", 32, 4}, + {"_info._reason._fault._addr", 16, 8}, + {"_info._reason._fault._trap", 24, 4}, + {"_info._reason._fault._trap2", 28, 4}, + {"_info._reason._fault._trap3", 32, 4}, + {"_info._reason._poll._band", 16, 8}, + {"_info._reason._poll._fd", 24, 4}, + {"_info._reason._syscall._sysnum", 16, 4}, + {"_info._reason._syscall._retval", 20, 8}, + {"_info._reason._syscall._error", 28, 4}, + {"_info._reason._syscall._args", 32, 64}, + {"_info._reason._ptrace_state._pe_report_event", 16, 4}, + {"_info._reason._ptrace_state._option._pe_other_pid", 20, 4}, + {"_info._reason._ptrace_state._option._pe_lwp", 20, 4}, + }); + } +} + +TEST_F(PlatformSiginfoTest, TestNetBSD_32bit) { + for (std::string arch : {"i386"}) { + SCOPED_TRACE(arch); + InitializeSiginfo(arch + "-unknown-netbsd9.0"); + ASSERT_TRUE(siginfo_type); + + ExpectFields( + siginfo_type, + { + {"_info._signo", 0, 4}, + {"_info._code", 4, 4}, + {"_info._errno", 8, 4}, + {"_info._reason._rt._pid", 12, 4}, + {"_info._reason._rt._uid", 16, 4}, + {"_info._reason._rt._value", 20, 4}, + {"_info._reason._child._pid", 12, 4}, + {"_info._reason._child._uid", 16, 4}, + {"_info._reason._child._status", 20, 4}, + {"_info._reason._child._utime", 24, 4}, + {"_info._reason._child._stime", 28, 4}, + {"_info._reason._fault._addr", 12, 4}, + {"_info._reason._fault._trap", 16, 4}, + {"_info._reason._fault._trap2", 20, 4}, + {"_info._reason._fault._trap3", 24, 4}, + {"_info._reason._poll._band", 12, 4}, + {"_info._reason._poll._fd", 16, 4}, + {"_info._reason._syscall._sysnum", 12, 4}, + {"_info._reason._syscall._retval", 16, 8}, + {"_info._reason._syscall._error", 24, 4}, + {"_info._reason._syscall._args", 28, 64}, + {"_info._reason._ptrace_state._pe_report_event", 12, 4}, + {"_info._reason._ptrace_state._option._pe_other_pid", 16, 4}, + {"_info._reason._ptrace_state._option._pe_lwp", 16, 4}, + }); + } +} diff --git a/lldb/unittests/Platform/tools/generate_siginfo.c b/lldb/unittests/Platform/tools/generate_siginfo.c new file mode 100644 index 0000000000000..5294a1b141dce --- /dev/null +++ b/lldb/unittests/Platform/tools/generate_siginfo.c @@ -0,0 +1,112 @@ +//===-- generate_siginfo_linux.c ------------------------------------------===// +// +// 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 +#include +#include + +siginfo_t siginfo; + +#define P(member) \ + printf(" {\"%s\", %zd, %zd},\n", #member, \ + offsetof(siginfo_t, member), sizeof(siginfo.member)); + +// undef annoying "POSIX friendliness" macros +#undef si_pid +#undef si_uid +#undef si_overrun +#undef si_status +#undef si_utime +#undef si_stime +#undef si_addr +#undef si_addr_lsb +#undef si_band +#undef si_fd + +int main() { + printf(" ExpectFields(siginfo_type,\n"); + printf(" {\n"); + +#if !defined(__NetBSD__) + P(si_signo); + P(si_errno); + P(si_code); + +#if defined(__GLIBC__) + P(_sifields._kill.si_pid); + P(_sifields._kill.si_uid); + P(_sifields._timer.si_tid); + P(_sifields._timer.si_overrun); + P(_sifields._timer.si_sigval); + P(_sifields._rt.si_pid); + P(_sifields._rt.si_uid); + P(_sifields._rt.si_sigval); + P(_sifields._sigchld.si_pid); + P(_sifields._sigchld.si_uid); + P(_sifields._sigchld.si_status); + P(_sifields._sigchld.si_utime); + P(_sifields._sigchld.si_stime); + P(_sifields._sigfault.si_addr); + P(_sifields._sigfault.si_addr_lsb); + P(_sifields._sigfault._bounds._addr_bnd._lower); + P(_sifields._sigfault._bounds._addr_bnd._upper); + P(_sifields._sigfault._bounds._pkey); + P(_sifields._sigpoll.si_band); + P(_sifields._sigpoll.si_fd); + P(_sifields._sigsys._call_addr); + P(_sifields._sigsys._syscall); + P(_sifields._sigsys._arch); +#endif // defined(__GLIBC__) + +#if defined(__FreeBSD__) + // these are top-level fields on FreeBSD + P(si_pid); + P(si_uid); + P(si_status); + P(si_addr); + P(si_value); + P(_reason._fault._trapno); + P(_reason._timer._timerid); + P(_reason._timer._overrun); + P(_reason._mesgq._mqd); + P(_reason._poll._band); +#endif // defined(__FreeBSD__) + +#else // defined(__NetBSD__) + + P(_info._signo); + P(_info._code); + P(_info._errno); + P(_info._reason._rt._pid); + P(_info._reason._rt._uid); + P(_info._reason._rt._value); + P(_info._reason._child._pid); + P(_info._reason._child._uid); + P(_info._reason._child._status); + P(_info._reason._child._utime); + P(_info._reason._child._stime); + P(_info._reason._fault._addr); + P(_info._reason._fault._trap); + P(_info._reason._fault._trap2); + P(_info._reason._fault._trap3); + P(_info._reason._poll._band); + P(_info._reason._poll._fd); + P(_info._reason._syscall._sysnum); + P(_info._reason._syscall._retval); + P(_info._reason._syscall._error); + P(_info._reason._syscall._args); + P(_info._reason._ptrace_state._pe_report_event); + P(_info._reason._ptrace_state._option._pe_other_pid); + P(_info._reason._ptrace_state._option._pe_lwp); + +#endif // defined(__NetBSD__) + + printf(" });\n"); + + return 0; +}