diff options
Diffstat (limited to 'source/Host/android/ProcessLauncherAndroid.cpp')
-rw-r--r-- | source/Host/android/ProcessLauncherAndroid.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/source/Host/android/ProcessLauncherAndroid.cpp b/source/Host/android/ProcessLauncherAndroid.cpp new file mode 100644 index 000000000000..24eebc8c030f --- /dev/null +++ b/source/Host/android/ProcessLauncherAndroid.cpp @@ -0,0 +1,108 @@ +//===-- ProcessLauncherAndroid.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/FileSpec.h" +#include "lldb/Host/Host.h" +#include "lldb/Host/HostProcess.h" +#include "lldb/Host/android/ProcessLauncherAndroid.h" + +#include "lldb/Target/ProcessLaunchInfo.h" + +#include <limits.h> + +using namespace lldb; +using namespace lldb_private; + +static bool +DupDescriptor(const FileSpec &file_spec, int fd, int flags) +{ + int target_fd = ::open(file_spec.GetCString(), flags, 0666); + + if (target_fd == -1) + return false; + + if (::dup2(target_fd, fd) == -1) + return false; + + return (::close(target_fd) == -1) ? false : true; +} + +// If there is no PATH variable specified inside the environment then set the path to /system/bin. +// It is required because the default path used by execve() is wrong on android. +static void +FixupEnvironment(Args& env) +{ + static const char* path = "PATH="; + static const int path_len = ::strlen(path); + for (const char** args = env.GetConstArgumentVector(); *args; ++args) + if (::strncmp(path, *args, path_len) == 0) + return; + env.AppendArgument("PATH=/system/bin"); +} + +HostProcess +ProcessLauncherAndroid::LaunchProcess(const ProcessLaunchInfo &launch_info, Error &error) +{ + // TODO: Handle other launch parameters specified in launc_info + + char exe_path[PATH_MAX]; + launch_info.GetExecutableFile().GetPath(exe_path, sizeof(exe_path)); + + lldb::pid_t pid = ::fork(); + if (pid == static_cast<lldb::pid_t>(-1)) + { + // Fork failed + error.SetErrorStringWithFormat("Fork failed with error message: %s", strerror(errno)); + return HostProcess(LLDB_INVALID_PROCESS_ID); + } + else if (pid == 0) + { + if (const lldb_private::FileAction *file_action = launch_info.GetFileActionForFD(STDIN_FILENO)) { + FileSpec file_spec = file_action->GetFileSpec(); + if (file_spec) + if (!DupDescriptor(file_spec, STDIN_FILENO, O_RDONLY)) + exit(-1); + } + + if (const lldb_private::FileAction *file_action = launch_info.GetFileActionForFD(STDOUT_FILENO)) { + FileSpec file_spec = file_action->GetFileSpec(); + if (file_spec) + if (!DupDescriptor(file_spec, STDOUT_FILENO, O_WRONLY | O_CREAT | O_TRUNC)) + exit(-1); + } + + if (const lldb_private::FileAction *file_action = launch_info.GetFileActionForFD(STDERR_FILENO)) { + FileSpec file_spec = file_action->GetFileSpec(); + if (file_spec) + if (!DupDescriptor(file_spec, STDERR_FILENO, O_WRONLY | O_CREAT | O_TRUNC)) + exit(-1); + } + + // Child process + const char **argv = launch_info.GetArguments().GetConstArgumentVector(); + + Args env = launch_info.GetEnvironmentEntries(); + FixupEnvironment(env); + const char **envp = env.GetConstArgumentVector(); + + FileSpec working_dir = launch_info.GetWorkingDirectory(); + if (working_dir) + { + if (::chdir(working_dir.GetCString()) != 0) + exit(-1); + } + + execve(argv[0], + const_cast<char *const *>(argv), + const_cast<char *const *>(envp)); + exit(-1); + } + + return HostProcess(pid); +} |