has been detected by the Java Runtime environment:## SIGSEGV (0XB) at PC=0X0000003E6A089B03, pid=19647, tid=140309875619584## JRE VERSION:6.0_45-B06# Java Vm:java HotSpot (TM) 64-bit Server VM (20.45-b01 mixed mode linux-amd64 compressed oops)# Problematic Frame:# C [libc.so.6+0x89b03] unsigned long+0x2e3## If you would as to submit a bug report, please visit:# http://java.sun.com/webapps/bugreport/crash.jsp# The crash happened outside the Java Virtual machine in native code.# See problematic f
on, the line is only 0, or all 1 assignments. In addition to bit arrays, the minimum number of member variables in a table is a word, so a 16-bit assignment indicates a high h, low l half word.5), variable, register mutual assignment:R9 = A.B.C.9.W; R11 = A.B.3.W; C.9.W = R13; B.a.10.z = H3; Wait a minute.You should pay attention to the size of the container in place, otherwise there will be truncation. Typically, the register variable size is the sa
] Panic at FFFFFFFF816326D1#3 [ffff882fbfd45b78] watchdog_overflow_callback at ffffffff8111d0e2#4 [ffff882fbfd45b88] __perf_event_overflow at FFFFFFFF811608D1#5 [FFFF882FBFD45C00] Perf_event_overflow at FFFFFFFF811613A4#6 [FFFF882FBFD45C10] Intel_pmu_handle_irq at ffffffff81032628#7 [Ffff882fbfd45e60] Perf_event_nmi_handler at FFFFFFFF81642BCB#8 [Ffff882fbfd45e80] Nmi_handle at ffffffff81642319#9 [Ffff882fbfd45ec8] Do_nmi at ffffffff81642430#10 [FFFF882FBFD45EF0] End_repeat_nmi at ffffffff816417
Let's start with some basic knowledge of arm assembly. (We take ARMV7 as an example, the latest iphone5s on the 64-bit is not discussed)
Basic Knowledge Section:
First you introduce registers:
R0-R3: For the transfer of function parameters and return values
R4-R6, R8,r10-r11: There is no special provision, is the general General register
R7: Stack frame pointer (frame pointer). Point to the address of the previous saved stack frame (stack frame)
function within a range of values, and the inner product form is the integral of the product of two functions within the range of values.The method of calculating the discrete Fourier coefficients d by multiplying the FN by the vector z is called the DFT algorithm (discrete Fourier transform).FFT (Fast Fourier transform), using matrix block, faster than the discrete Fourier transform 8w multiple timesGramm-Schmitt orthogonal process: u1= (1/| | x1| |) X1, u2= (1/| | x2-p1| |) (X2-P1), ... The d
September 21 VivoX20 finally officially launched in China, the machine for vivo first comprehensive screen mobile phone, X20 endorsement obviously found Lou, Peng, weeks and winter rain, whether the phone itself or star popularity lineup this time not to lose Oppo R11, the vivoX20 for us to bring many innovative breakthroughs, This time we use Iphonex as the contrast object to analyze the 4 secrets you have to know about vivoX20.
1, VIVOX20 equipped
Objective
In the previous article, we defined the matrix, this article we will add some common methods to the matrix.
ToString Method
The ToString method is often used as a description of the object as a string, so we define this method as an output matrix element.
Mat.prototype.toString = function () {
var tempdata = this.data,
text = "Mat (" + This.type + ") = {\ n",
num = this . Col * This.channel;
for (var i = 0; i
In this way, we can go through:
Console.log (
defines the memory space (DCB is bytes) of a segment of a word and initializes it with a subsequent expression.
13. Byte alignment ALIGN defines a numeric constant definition EQU. Declares an external symbol import,extern imports a symbol externally, typically an external program global variable.
R7: Stack frame pointer (frame Pointer). The address on the stack that points to the previous saved stack frame (stack frame) and the link register (link register, LR)
R13: Also known a
Concept:
1. Neighbor table: The address of the direct-attached router and the interface to which it is connected
2. Topology table:
A. Routing Status: P (passive) a (activity)
B. Feasible distance (FD): Minimum metric to destination (metric)
C. Reporting distance (AD): The cost of a neighbor arriving at the destination network
D. Equivalent load balancing: Two link FD values at the same time as the agreed destination
E. Subsequent routing: a skip to the main route the router (R12 is the
Mining and RealApplication Testing Options6Sql> SelectRelease_name fromfnd_product_groups;7 Release_name8 --------------------------------------------------------------------------------
9 12.1.1
TenSql> You can see that the local version is 12.1.1. 2. Determine the operating system of the server It is understood that EBS on different operating systems, JavaBean jar package configuration and upload directory also there are some differences, such as my local environment is XP, the server is Lin
all the values of the r4-pc Acdb_ioctl: ... ADD sp, SP, #$84ldmuw [sp], {r4-r11, PC}//(3)Modify the value of the R5,R9,PC through the stack overflow.3.上面的指令,通过堆栈溢出,控制PC的值,跳转到下面代码执行STR R5, [R9]//(4) Ldmuw [SP], {r4-r10, PC}//(5)Here is the key, mainly through the str instruction, the value of the R5 is set to the address of R9, that is, through the stack overflow to achieve arbitrary address write purposes.4.执行(5)之后,为了堆栈平衡,栈要填充 4*8 字节,然后设置下一跳的PC,即返回到
eclipse via ADT. On this basis, you can modify the source package, such as modify the source code in Android system/app/phone.apk, and then call the Make command again, you can generate a new System.image file, this file is an image file.----------phone ROM contains two basic image, one is boot.image, this image is mainly kernel and file system/directory of some things. Kernel I'm not going to say,/directory is mostly init and related profiles System.image is the core of Android system Userpace
the android-ndk-r11 and other versions of built-in Clang are not 3.6 version. then there is a detail here, if you download android-ndk-r10e-windows-x86_64.zip, then you also need to rename \ android-ndk-r10e \ toolchains \ llvm-3.6 \ prebuilt \ windows-x86_64 \ toolchains \ android-ndk-r10e \ prebuilt \ windows.
4. If you use Microsoft Visual Studio Emulator for Android and select to configure the network for the simulator, you may encounter the foll
.
After JDK and JRE are installed, install Eclipse:
Java code$ Sudo pacman-S eclipse[Java] view plaincopy$ Sudo pacman-S eclipseAfter the installation is successful, open Eclipse and try again.
After a while, we still need to work on Eclipse, but now we need to first install the Android software development kit before we can complete Eclipse installation.
Install the Android SDK)
To install the Android software development kit (, first go to the http://developer.android.com/sdk/index.h
In Win64, there is only one calling convention. The following is an example of passing 4 integer types through a register:*RCX: First parameter*RDX: Second parameter*R8: A third parameter*R9: Fourth parameterthe 4 integers at the beginning of the argument are passed to the stack. When passing a floating-point parameter, the XMMO-XMM3 register is used. The calling convention simplifies: all use __fastcall, the first four parameters with RCX, RDX, R8 and R9 Pass, in addition to these four plus rax
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