Create separate Android.mk for main build targets

The runtime, compiler, dex2oat, and oatdump now are in seperate trees
to prevent dependency creep.  They can now be individually built
without rebuilding the rest of the art projects. dalvikvm and jdwpspy
were already this way. Builds in the art directory should behave as
before, building everything including tests.

Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81

1 files changed, 314 insertions, 0 deletions

diff --git a/runtime/runtime_linux.cc b/runtime/runtime_linux.cc
new file mode 100644
index 0000000000..a4fc3af606
--- /dev/null
+++ b/runtime/runtime_linux.cc
@@ -0,0 +1,314 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "runtime.h"
+
+#include <signal.h>
+#include <string.h>
+#include <sys/utsname.h>
+
+#include "base/logging.h"
+#include "base/mutex.h"
+#include "base/stringprintf.h"
+#include "thread.h"
+#include "utils.h"
+
+namespace art {
+
+struct Backtrace {
+  void Dump(std::ostream& os) {
+    DumpNativeStack(os, GetTid(), "\t", true);
+  }
+};
+
+struct OsInfo {
+  void Dump(std::ostream& os) {
+    utsname info;
+    uname(&info);
+    // Linux 2.6.38.8-gg784 (x86_64)
+    // Darwin 11.4.0 (x86_64)
+    os << info.sysname << " " << info.release << " (" << info.machine << ")";
+  }
+};
+
+static const char* GetSignalName(int signal_number) {
+  switch (signal_number) {
+    case SIGABRT: return "SIGABRT";
+    case SIGBUS: return "SIGBUS";
+    case SIGFPE: return "SIGFPE";
+    case SIGILL: return "SIGILL";
+    case SIGPIPE: return "SIGPIPE";
+    case SIGSEGV: return "SIGSEGV";
+#if defined(SIGSTKFLT)
+    case SIGSTKFLT: return "SIGSTKFLT";
+#endif
+    case SIGTRAP: return "SIGTRAP";
+  }
+  return "??";
+}
+
+static const char* GetSignalCodeName(int signal_number, int signal_code) {
+  // Try the signal-specific codes...
+  switch (signal_number) {
+    case SIGILL:
+      switch (signal_code) {
+        case ILL_ILLOPC: return "ILL_ILLOPC";
+        case ILL_ILLOPN: return "ILL_ILLOPN";
+        case ILL_ILLADR: return "ILL_ILLADR";
+        case ILL_ILLTRP: return "ILL_ILLTRP";
+        case ILL_PRVOPC: return "ILL_PRVOPC";
+        case ILL_PRVREG: return "ILL_PRVREG";
+        case ILL_COPROC: return "ILL_COPROC";
+        case ILL_BADSTK: return "ILL_BADSTK";
+      }
+      break;
+    case SIGBUS:
+      switch (signal_code) {
+        case BUS_ADRALN: return "BUS_ADRALN";
+        case BUS_ADRERR: return "BUS_ADRERR";
+        case BUS_OBJERR: return "BUS_OBJERR";
+      }
+      break;
+    case SIGFPE:
+      switch (signal_code) {
+        case FPE_INTDIV: return "FPE_INTDIV";
+        case FPE_INTOVF: return "FPE_INTOVF";
+        case FPE_FLTDIV: return "FPE_FLTDIV";
+        case FPE_FLTOVF: return "FPE_FLTOVF";
+        case FPE_FLTUND: return "FPE_FLTUND";
+        case FPE_FLTRES: return "FPE_FLTRES";
+        case FPE_FLTINV: return "FPE_FLTINV";
+        case FPE_FLTSUB: return "FPE_FLTSUB";
+      }
+      break;
+    case SIGSEGV:
+      switch (signal_code) {
+        case SEGV_MAPERR: return "SEGV_MAPERR";
+        case SEGV_ACCERR: return "SEGV_ACCERR";
+      }
+      break;
+    case SIGTRAP:
+      switch (signal_code) {
+        case TRAP_BRKPT: return "TRAP_BRKPT";
+        case TRAP_TRACE: return "TRAP_TRACE";
+      }
+      break;
+  }
+  // Then the other codes...
+  switch (signal_code) {
+    case SI_USER:     return "SI_USER";
+#if defined(SI_KERNEL)
+    case SI_KERNEL:   return "SI_KERNEL";
+#endif
+    case SI_QUEUE:    return "SI_QUEUE";
+    case SI_TIMER:    return "SI_TIMER";
+    case SI_MESGQ:    return "SI_MESGQ";
+    case SI_ASYNCIO:  return "SI_ASYNCIO";
+#if defined(SI_SIGIO)
+    case SI_SIGIO:    return "SI_SIGIO";
+#endif
+#if defined(SI_TKILL)
+    case SI_TKILL:    return "SI_TKILL";
+#endif
+  }
+  // Then give up...
+  return "?";
+}
+
+struct UContext {
+  explicit UContext(void* raw_context) : context(reinterpret_cast<ucontext_t*>(raw_context)->uc_mcontext) {}
+
+  void Dump(std::ostream& os) {
+    // TODO: support non-x86 hosts (not urgent because this code doesn't run on targets).
+#if defined(__APPLE__)
+    DumpRegister32(os, "eax", context->__ss.__eax);
+    DumpRegister32(os, "ebx", context->__ss.__ebx);
+    DumpRegister32(os, "ecx", context->__ss.__ecx);
+    DumpRegister32(os, "edx", context->__ss.__edx);
+    os << '\n';
+
+    DumpRegister32(os, "edi", context->__ss.__edi);
+    DumpRegister32(os, "esi", context->__ss.__esi);
+    DumpRegister32(os, "ebp", context->__ss.__ebp);
+    DumpRegister32(os, "esp", context->__ss.__esp);
+    os << '\n';
+
+    DumpRegister32(os, "eip", context->__ss.__eip);
+    os << "                   ";
+    DumpRegister32(os, "eflags", context->__ss.__eflags);
+    DumpX86Flags(os, context->__ss.__eflags);
+    os << '\n';
+
+    DumpRegister32(os, "cs",  context->__ss.__cs);
+    DumpRegister32(os, "ds",  context->__ss.__ds);
+    DumpRegister32(os, "es",  context->__ss.__es);
+    DumpRegister32(os, "fs",  context->__ss.__fs);
+    os << '\n';
+    DumpRegister32(os, "gs",  context->__ss.__gs);
+    DumpRegister32(os, "ss",  context->__ss.__ss);
+#else
+    DumpRegister32(os, "eax", context.gregs[REG_EAX]);
+    DumpRegister32(os, "ebx", context.gregs[REG_EBX]);
+    DumpRegister32(os, "ecx", context.gregs[REG_ECX]);
+    DumpRegister32(os, "edx", context.gregs[REG_EDX]);
+    os << '\n';
+
+    DumpRegister32(os, "edi", context.gregs[REG_EDI]);
+    DumpRegister32(os, "esi", context.gregs[REG_ESI]);
+    DumpRegister32(os, "ebp", context.gregs[REG_EBP]);
+    DumpRegister32(os, "esp", context.gregs[REG_ESP]);
+    os << '\n';
+
+    DumpRegister32(os, "eip", context.gregs[REG_EIP]);
+    os << "                   ";
+    DumpRegister32(os, "eflags", context.gregs[REG_EFL]);
+    DumpX86Flags(os, context.gregs[REG_EFL]);
+    os << '\n';
+
+    DumpRegister32(os, "cs",  context.gregs[REG_CS]);
+    DumpRegister32(os, "ds",  context.gregs[REG_DS]);
+    DumpRegister32(os, "es",  context.gregs[REG_ES]);
+    DumpRegister32(os, "fs",  context.gregs[REG_FS]);
+    os << '\n';
+    DumpRegister32(os, "gs",  context.gregs[REG_GS]);
+    DumpRegister32(os, "ss",  context.gregs[REG_SS]);
+#endif
+  }
+
+  void DumpRegister32(std::ostream& os, const char* name, uint32_t value) {
+    os << StringPrintf(" %6s: 0x%08x", name, value);
+  }
+
+  void DumpX86Flags(std::ostream& os, uint32_t flags) {
+    os << " [";
+    if ((flags & (1 << 0)) != 0) {
+      os << " CF";
+    }
+    if ((flags & (1 << 2)) != 0) {
+      os << " PF";
+    }
+    if ((flags & (1 << 4)) != 0) {
+      os << " AF";
+    }
+    if ((flags & (1 << 6)) != 0) {
+      os << " ZF";
+    }
+    if ((flags & (1 << 7)) != 0) {
+      os << " SF";
+    }
+    if ((flags & (1 << 8)) != 0) {
+      os << " TF";
+    }
+    if ((flags & (1 << 9)) != 0) {
+      os << " IF";
+    }
+    if ((flags & (1 << 10)) != 0) {
+      os << " DF";
+    }
+    if ((flags & (1 << 11)) != 0) {
+      os << " OF";
+    }
+    os << " ]";
+  }
+
+  mcontext_t& context;
+};
+
+void HandleUnexpectedSignal(int signal_number, siginfo_t* info, void* raw_context) {
+  static bool handlingUnexpectedSignal = false;
+  if (handlingUnexpectedSignal) {
+    LogMessageData data(__FILE__, __LINE__, INTERNAL_FATAL, -1);
+    LogMessage::LogLine(data, "HandleUnexpectedSignal reentered\n");
+    _exit(1);
+  }
+  handlingUnexpectedSignal = true;
+
+  gAborting++;  // set before taking any locks
+  MutexLock mu(Thread::Current(), *Locks::unexpected_signal_lock_);
+
+  bool has_address = (signal_number == SIGILL || signal_number == SIGBUS ||
+                      signal_number == SIGFPE || signal_number == SIGSEGV);
+
+  OsInfo os_info;
+  const char* cmd_line = GetCmdLine();
+  if (cmd_line == NULL) {
+    cmd_line = "<unset>"; // Because no-one called InitLogging.
+  }
+  pid_t tid = GetTid();
+  std::string thread_name(GetThreadName(tid));
+  UContext thread_context(raw_context);
+  Backtrace thread_backtrace;
+
+  LOG(INTERNAL_FATAL) << "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\n"
+                      << StringPrintf("Fatal signal %d (%s), code %d (%s)",
+                                      signal_number, GetSignalName(signal_number),
+                                      info->si_code,
+                                      GetSignalCodeName(signal_number, info->si_code))
+                      << (has_address ? StringPrintf(" fault addr %p", info->si_addr) : "") << "\n"
+                      << "OS: " << Dumpable<OsInfo>(os_info) << "\n"
+                      << "Cmdline: " << cmd_line << "\n"
+                      << "Thread: " << tid << " \"" << thread_name << "\"\n"
+                      << "Registers:\n" << Dumpable<UContext>(thread_context) << "\n"
+                      << "Backtrace:\n" << Dumpable<Backtrace>(thread_backtrace);
+
+  if (getenv("debug_db_uid") != NULL || getenv("art_wait_for_gdb_on_crash") != NULL) {
+    LOG(INTERNAL_FATAL) << "********************************************************\n"
+                        << "* Process " << getpid() << " thread " << tid << " \"" << thread_name << "\""
+                        << " has been suspended while crashing.\n"
+                        << "* Attach gdb:\n"
+                        << "*     gdb -p " << tid << "\n"
+                        << "********************************************************\n";
+    // Wait for debugger to attach.
+    while (true) {
+    }
+  }
+
+  // Remove our signal handler for this signal...
+  struct sigaction action;
+  memset(&action, 0, sizeof(action));
+  sigemptyset(&action.sa_mask);
+  action.sa_handler = SIG_DFL;
+  sigaction(signal_number, &action, NULL);
+  // ...and re-raise so we die with the appropriate status.
+  kill(getpid(), signal_number);
+}
+
+void Runtime::InitPlatformSignalHandlers() {
+  // On the host, we don't have debuggerd to dump a stack for us when something unexpected happens.
+  struct sigaction action;
+  memset(&action, 0, sizeof(action));
+  sigemptyset(&action.sa_mask);
+  action.sa_sigaction = HandleUnexpectedSignal;
+  // Use the three-argument sa_sigaction handler.
+  action.sa_flags |= SA_SIGINFO;
+  // Use the alternate signal stack so we can catch stack overflows.
+  action.sa_flags |= SA_ONSTACK;
+
+  int rc = 0;
+  rc += sigaction(SIGABRT, &action, NULL);
+  rc += sigaction(SIGBUS, &action, NULL);
+  rc += sigaction(SIGFPE, &action, NULL);
+  rc += sigaction(SIGILL, &action, NULL);
+  rc += sigaction(SIGPIPE, &action, NULL);
+  rc += sigaction(SIGSEGV, &action, NULL);
+#if defined(SIGSTKFLT)
+  rc += sigaction(SIGSTKFLT, &action, NULL);
+#endif
+  rc += sigaction(SIGTRAP, &action, NULL);
+  CHECK_EQ(rc, 0);
+}
+
+}  // namespace art