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Diffstat (limited to 'source/Host/android/HostInfoAndroid.cpp')
-rw-r--r-- | source/Host/android/HostInfoAndroid.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/source/Host/android/HostInfoAndroid.cpp b/source/Host/android/HostInfoAndroid.cpp new file mode 100644 index 000000000000..3fa50ec8ddfd --- /dev/null +++ b/source/Host/android/HostInfoAndroid.cpp @@ -0,0 +1,104 @@ +//===-- HostInfoAndroid.cpp -------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "lldb/Host/android/HostInfoAndroid.h" +#include "lldb/Host/linux/HostInfoLinux.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/StringRef.h" + +using namespace lldb_private; +using namespace llvm; + +void +HostInfoAndroid::ComputeHostArchitectureSupport(ArchSpec &arch_32, ArchSpec &arch_64) +{ + HostInfoLinux::ComputeHostArchitectureSupport(arch_32, arch_64); + + if (arch_32.IsValid()) + { + arch_32.GetTriple().setEnvironment(llvm::Triple::Android); + } + if (arch_64.IsValid()) + { + arch_64.GetTriple().setEnvironment(llvm::Triple::Android); + } +} + +FileSpec +HostInfoAndroid::GetDefaultShell() +{ + return FileSpec("/system/bin/sh", false); +} + +FileSpec +HostInfoAndroid::ResolveLibraryPath(const std::string& module_path, const ArchSpec& arch) +{ + static const char* const ld_library_path_separator = ":"; + static const char* const default_lib32_path[] = { + "/vendor/lib", + "/system/lib", + nullptr + }; + static const char* const default_lib64_path[] = { + "/vendor/lib64", + "/system/lib64", + nullptr + }; + + if (module_path.empty() || module_path[0] == '/') + return FileSpec(module_path.c_str(), true); + + SmallVector<StringRef, 4> ld_paths; + + if (const char* ld_library_path = ::getenv("LD_LIBRARY_PATH")) + StringRef(ld_library_path).split(ld_paths, StringRef(ld_library_path_separator), -1, false); + + const char* const* default_lib_path = nullptr; + switch (arch.GetAddressByteSize()) + { + case 4: + default_lib_path = default_lib32_path; + break; + case 8: + default_lib_path = default_lib64_path; + break; + default: + assert(false && "Unknown address byte size"); + return FileSpec(); + } + + for(const char* const* it = default_lib_path; *it; ++it) + ld_paths.push_back(StringRef(*it)); + + for (const StringRef& path : ld_paths) + { + FileSpec file_candidate(path.str().c_str(), true); + file_candidate.AppendPathComponent(module_path.c_str()); + + if (file_candidate.Exists()) + return file_candidate; + } + + return FileSpec(); +} + +bool +HostInfoAndroid::ComputeTempFileBaseDirectory(FileSpec &file_spec) +{ + bool success = HostInfoLinux::ComputeTempFileBaseDirectory(file_spec); + + // On Android, there is no path which is guaranteed to be writable. If the user has not + // provided a path via an environment variable, the generic algorithm will deduce /tmp, which + // is plain wrong. In that case we have an invalid directory, we substitute the path with + // /data/local/tmp, which is correct at least in some cases (i.e., when running as shell user). + if (!success || !file_spec.Exists()) + file_spec = FileSpec("/data/local/tmp", false); + + return file_spec.Exists(); +} |