1. frameworks/native/include/android/native_window.h
typedef struct ANativeWindow_Buffer {
// The number of pixels that are show horizontally.
int32_t width;
// The number of pixels that are shown vertically.
int32_t height;
// The number of *pixels* that a line in the buffer takes in
// memory. This may be >= width.
int32_t stride;
// The format of the buffer. One of WINDOW_FORMAT_*
int32_t format;
// The actual bits.
void* bits;
// Do not touch.
uint32_t reserved[6];
} ANativeWindow_Buffer;
2.
int prctl ( int option,unsigned long arg2,unsigned long arg3,unsigned long arg4,unsigned long arg5 )
这个系统调用指令是为进程制定而设计的，明确的选择取决于option:
PR_SET_NAME :把参数arg2作为调用进程的经常名字。（SinceLinux 2.6.11）
3.
最近调试的时候遇到
Fatal signal 11 (SIGSEGV), code 1, fault addr 0xb3487000 in tid 2971 (mm_cam_stream)
DEBUG : r0 b3487000 r1 b333b040 r2 00025180 r3 00000000
。。。。
DEBUG : backtrace:
DEBUG : #00 pc 00016970 /system/lib/libc.so (__memcpy_base+104)
DEBUG : #01 pc 000035dd /system/vendor/lib/mmi_camera.so (_Z22mmi_cam_display_bufferP19mm_camera_buf_def_ti+312)
DEBUG : #02 pc 0000b317 /system/lib/libmm-qcamera.so
DEBUG : #03 pc 0000b303 /system/lib/libmmcamera_interface.so
/msm8909-m$ addr2line -e out/target/product/msm8909_512/symbols/system/lib/libc.so 00016970
/msm8909-m/bionic/libc/arch-arm/cortex-a15/bionic/memcpy_base.S:122
addr2line命令这种方式，可以定位程序出错的地方，请注意色标，实在太好用了！！！
4.