2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
//===-- HostInfoAndroid.cpp -------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Host/android/HostInfoAndroid.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/linux/HostInfoLinux.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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using namespace lldb_private;
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using namespace llvm;
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void HostInfoAndroid::ComputeHostArchitectureSupport(ArchSpec &arch_32,
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ArchSpec &arch_64) {
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HostInfoLinux::ComputeHostArchitectureSupport(arch_32, arch_64);
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if (arch_32.IsValid()) {
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arch_32.GetTriple().setEnvironment(llvm::Triple::Android);
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}
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if (arch_64.IsValid()) {
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arch_64.GetTriple().setEnvironment(llvm::Triple::Android);
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}
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}
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FileSpec HostInfoAndroid::GetDefaultShell() {
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return FileSpec("/system/bin/sh");
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}
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FileSpec HostInfoAndroid::ResolveLibraryPath(const std::string &module_path,
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const ArchSpec &arch) {
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static const char *const ld_library_path_separator = ":";
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static const char *const default_lib32_path[] = {"/vendor/lib", "/system/lib",
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nullptr};
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static const char *const default_lib64_path[] = {"/vendor/lib64",
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"/system/lib64", nullptr};
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if (module_path.empty() || module_path[0] == '/') {
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FileSpec file_spec(module_path.c_str());
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FileSystem::Instance().Resolve(file_spec);
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return file_spec;
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}
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SmallVector<StringRef, 4> ld_paths;
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if (const char *ld_library_path = ::getenv("LD_LIBRARY_PATH"))
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StringRef(ld_library_path)
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.split(ld_paths, StringRef(ld_library_path_separator), -1, false);
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const char *const *default_lib_path = nullptr;
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switch (arch.GetAddressByteSize()) {
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case 4:
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default_lib_path = default_lib32_path;
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break;
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case 8:
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default_lib_path = default_lib64_path;
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break;
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default:
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assert(false && "Unknown address byte size");
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return FileSpec();
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}
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for (const char *const *it = default_lib_path; *it; ++it)
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ld_paths.push_back(StringRef(*it));
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for (const StringRef &path : ld_paths) {
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FileSpec file_candidate(path.str().c_str());
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FileSystem::Instance().Resolve(file_candidate);
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file_candidate.AppendPathComponent(module_path.c_str());
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if (FileSystem::Instance().Exists(file_candidate))
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return file_candidate;
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}
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return FileSpec();
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}
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bool HostInfoAndroid::ComputeTempFileBaseDirectory(FileSpec &file_spec) {
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bool success = HostInfoLinux::ComputeTempFileBaseDirectory(file_spec);
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// On Android, there is no path which is guaranteed to be writable. If the
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// user has not provided a path via an environment variable, the generic
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// algorithm will deduce /tmp, which is plain wrong. In that case we have an
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// invalid directory, we substitute the path with /data/local/tmp, which is
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// correct at least in some cases (i.e., when running as shell user).
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if (!success || !FileSystem::Instance().Exists(file_spec))
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file_spec = FileSpec("/data/local/tmp");
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return FileSystem::Instance().Exists(file_spec);
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}
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