ndk: reverse course on android/log.h

move LOG macros to log/log_main.h

move include/android/log.h to liblog/include/android/log.h

Test: compile of all components and gTest liblog-unit-tests
Bug: 34250038
Bug: 30465923
Change-Id: If182dd9b83689e8b7bc1a44b2f5d913c7ee5eeee

1 files changed, 156 insertions, 0 deletions

diff --git a/liblog/include/android/log.h b/liblog/include/android/log.h
new file mode 100644
index 000000000..9f198fe87
--- /dev/null
+++ b/liblog/include/android/log.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef _ANDROID_LOG_H
+#define _ANDROID_LOG_H
+
+/******************************************************************
+ *
+ * IMPORTANT NOTICE:
+ *
+ *   This file is part of Android's set of stable system headers
+ *   exposed by the Android NDK (Native Development Kit) since
+ *   platform release 1.5
+ *
+ *   Third-party source AND binary code relies on the definitions
+ *   here to be FROZEN ON ALL UPCOMING PLATFORM RELEASES.
+ *
+ *   - DO NOT MODIFY ENUMS (EXCEPT IF YOU ADD NEW 32-BIT VALUES)
+ *   - DO NOT MODIFY CONSTANTS OR FUNCTIONAL MACROS
+ *   - DO NOT CHANGE THE SIGNATURE OF FUNCTIONS IN ANY WAY
+ *   - DO NOT CHANGE THE LAYOUT OR SIZE OF STRUCTURES
+ */
+
+/*
+ * Support routines to send messages to the Android in-kernel log buffer,
+ * which can later be accessed through the 'logcat' utility.
+ *
+ * Each log message must have
+ *   - a priority
+ *   - a log tag
+ *   - some text
+ *
+ * The tag normally corresponds to the component that emits the log message,
+ * and should be reasonably small.
+ *
+ * Log message text may be truncated to less than an implementation-specific
+ * limit (e.g. 1023 characters max).
+ *
+ * Note that a newline character ("\n") will be appended automatically to your
+ * log message, if not already there. It is not possible to send several messages
+ * and have them appear on a single line in logcat.
+ *
+ * PLEASE USE LOGS WITH MODERATION:
+ *
+ *  - Sending log messages eats CPU and slow down your application and the
+ *    system.
+ *
+ *  - The circular log buffer is pretty small (<64KB), sending many messages
+ *    might push off other important log messages from the rest of the system.
+ *
+ *  - In release builds, only send log messages to account for exceptional
+ *    conditions.
+ *
+ * NOTE: These functions MUST be implemented by /system/lib/liblog.so
+ */
+
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Android log priority values, in ascending priority order.
+ */
+typedef enum android_LogPriority {
+    ANDROID_LOG_UNKNOWN = 0,
+    ANDROID_LOG_DEFAULT,    /* only for SetMinPriority() */
+    ANDROID_LOG_VERBOSE,
+    ANDROID_LOG_DEBUG,
+    ANDROID_LOG_INFO,
+    ANDROID_LOG_WARN,
+    ANDROID_LOG_ERROR,
+    ANDROID_LOG_FATAL,
+    ANDROID_LOG_SILENT,     /* only for SetMinPriority(); must be last */
+} android_LogPriority;
+
+/*
+ * Send a simple string to the log.
+ */
+int __android_log_write(int prio, const char* tag, const char* text);
+
+/*
+ * Send a formatted string to the log, used like printf(fmt,...)
+ */
+int __android_log_print(int prio, const char* tag,  const char* fmt, ...)
+#if defined(__GNUC__)
+#ifdef __USE_MINGW_ANSI_STDIO
+#if __USE_MINGW_ANSI_STDIO
+    __attribute__ ((__format__(gnu_printf, 3, 4)))
+#else
+    __attribute__ ((__format__(printf, 3, 4)))
+#endif
+#else
+    __attribute__ ((__format__(printf, 3, 4)))
+#endif
+#endif
+    ;
+
+/*
+ * A variant of __android_log_print() that takes a va_list to list
+ * additional parameters.
+ */
+int __android_log_vprint(int prio, const char* tag,
+                         const char* fmt, va_list ap)
+#if defined(__GNUC__)
+#ifdef __USE_MINGW_ANSI_STDIO
+#if __USE_MINGW_ANSI_STDIO
+    __attribute__ ((__format__(gnu_printf, 3, 0)))
+#else
+    __attribute__ ((__format__(printf, 3, 0)))
+#endif
+#else
+    __attribute__ ((__format__(printf, 3, 0)))
+#endif
+#endif
+    ;
+
+/*
+ * Log an assertion failure and abort the process to have a chance
+ * to inspect it if a debugger is attached. This uses the FATAL priority.
+ */
+void __android_log_assert(const char* cond, const char* tag,
+                          const char* fmt, ...)
+#if defined(__GNUC__)
+    __attribute__ ((__noreturn__))
+#ifdef __USE_MINGW_ANSI_STDIO
+#if __USE_MINGW_ANSI_STDIO
+    __attribute__ ((__format__(gnu_printf, 3, 4)))
+#else
+    __attribute__ ((__format__(printf, 3, 4)))
+#endif
+#else
+    __attribute__ ((__format__(printf, 3, 4)))
+#endif
+#endif
+    ;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ANDROID_LOG_H */