Create new platform: remote-android

* Create new platform plugin for lldb
* Create HostInfo class for android
* Create ProcessLauncher for android

Differential Revision: http://reviews.llvm.org/D7584

llvm-svn: 228943

2 files changed, 87 insertions, 0 deletions

diff --git a/lldb/source/Host/android/HostInfoAndroid.cpp b/lldb/source/Host/android/HostInfoAndroid.cpp
new file mode 100644
index 00000000000..bc546e537b8
--- /dev/null
+++ b/lldb/source/Host/android/HostInfoAndroid.cpp
@@ -0,0 +1,28 @@
+//===-- 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"
+
+using namespace lldb_private;
+
+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);
+    }
+}
diff --git a/lldb/source/Host/android/ProcessLauncherAndroid.cpp b/lldb/source/Host/android/ProcessLauncherAndroid.cpp
new file mode 100644
index 00000000000..f90ba2fe41d
--- /dev/null
+++ b/lldb/source/Host/android/ProcessLauncherAndroid.cpp
@@ -0,0 +1,59 @@
+//===-- 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/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;
+
+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));
+
+    const size_t err_len = 1024;
+    char err_str[err_len];
+
+    lldb::pid_t pid = ::fork ();
+    if (pid < 0)
+    {
+        // Fork failed
+        error.SetErrorStringWithFormat("Fork failed with error message: %s", strerror(errno));
+        return HostProcess(LLDB_INVALID_PROCESS_ID);
+    }
+    else if (pid == 0)
+    {
+        // Child process
+        const char **argv = launch_info.GetArguments().GetConstArgumentVector();
+        const char **envp = launch_info.GetEnvironmentEntries().GetConstArgumentVector();
+        const char *working_dir = launch_info.GetWorkingDirectory();
+        
+        if (working_dir != nullptr && working_dir[0])
+        {
+            if (::chdir(working_dir) != 0)
+                exit(-1);
+        }
+
+        execve(argv[0],
+               const_cast<char *const *>(argv),
+               const_cast<char *const *>(envp));
+        exit(-1);
+    }
+   
+    return HostProcess(pid);
+}