android C/C++ source files 全局宏定义 .

\system\core\include\arch\linux-arm

AndroidConfig.h

* ===========================================================================
* !!! IMPORTANT !!!
* ===========================================================================
*
* This file is included by ALL C/C++ source files. Don't put anything in
* here unless you are absolutely certain it can't go anywhere else.
*
* Any C++ stuff must be wrapped with "#ifdef __cplusplus". Do not use "//"
* comments.
*/

/*
* Define if we have Linux's inotify in <sys/inotify.h>.
*/
#define HAVE_INOTIFY 1

--------------------------------------------------------

#if HAVE_INOTIFY
// readNotify() will modify mFDs and mFDCount, so this must be done after
// processing all other events.
if(mFDs[0].revents & POLLIN) {
readNotify(mFDs[0].fd);
mFDs[0].revents = 0;
continue; // report added or removed devices immediately
}
#endif

==============================

ifeq ($(BOARD_USES_HDMI),true)
LOCAL_C_INCLUDES += \
device/samsung/proprietary/libhdmi

LOCAL_SHARED_LIBRARIES += libhdmiservice

LOCAL_CFLAGS += -DBOARD_USES_HDMI
endif

-------------

\device\samsung\smdkv210\BoardConfig.mk

BOARD_USES_HDMI :=true

BOARD_KERNEL_BASE := 0x30000000
BOARD_KERNEL_PAGESIZE := 4096
BOARD_KERNEL_CMDLINE := console=ttyFIQ0 no_console_suspend

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