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the load_addr and text_start values.In fact, these two values are the zreladdr and ztextaddr assigned by the other two variables.In kernel/ARCH/ARM/boot/makefile, we can find the values of these two variables.Ifeq ($ (config_arch_s3c2410), Y)Ztextaddr = 0x30008000Zreladdr = 0x30008000EndifSoLoad_addr = 0x30008000Text_start = 0x30008000Let's take a look at vmlinux. LDS.Entry (_ start)Sections{. = 0x30008000;_ Load_addr = .; . = 0;_ Text = .;Obviously, load_addr is assigned 0x30008000.Let's see h

addresses. If you leave the/WP pin unmoved or grounded, flash will not be able to write protection, and all the primary storage pages can be read and written. Reset (/reset) b041 uses a low-level reset, that is, when the/reset pin has a low-level ( Interface with microprocessor The b041 peripheral circuit is very simple and can be easily connected to the microcontroller. So, Si, sck,/cs,/WP are connected to the general I/O of the microprocessor respectively. Software Design The following descri

Article Title: detailed analysis of the ArmLinux Operating System Call process. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. System calling is a service provided by the operating system of the operating system. User Programs reference various services provided by the kernel through various system calls. The execution of system calls puts user programs into

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???? R0, R0, IP, LSL r04:???? 00000002???? ANDEQ???? R0, R0, R28:???? 00040000???? ANDEQ???? R0, R4, R0C:???? 00000000???? ANDEQ???? R0, R0, R0Ten:???? 50008000???? ANDPL???? R8, R0, R0:???? 0000000c???? ANDEQ???? R0, R0, IP???? ...Disassembly of section. Debug_info:?00000000 0:???? 00000045???? ANDEQ???? R0, R0, R5, ASR #324:???? 00000002???? ANDEQ???? R0, R0, R28:???? 01040000???? Tsteq???? R4, R0C:???? 00000000???? ANDEQ???? R0, R0, R0Ten:???? 50008000???? ANDPL???? R8, R0, R0:???? 5000800c??

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/055614D55-0.png "title =" cisco.png "/> 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/0556141032-1.png "title =" topological configuration .png "/> Basic topology of an enterprise: Idea: 1) configure the aggregation layer and access layer first, and then configure the core layer and route 2) SW5 SW6 SW7 SW8 configure the port trunk mode, bind the port, and create vtp. 3) configure the vlan ad

650) this.width=650; "style=" width:559px;height:180px; "title=" @_k9sq05]r11o2%x4c@el3e.jpg "src=" http:/ S3.51cto.com/wyfs02/m01/56/9f/wkiom1sju5hhbftbaac8zogrheo881.jpg "width=" 992 "height=" 266 "alt=" Wkiom1sju5hhbftbaac8zogrheo881.jpg "/>First, complete the Exchange (R2) configurationSecond, complete the configuration of the external network R7 routing, the device simulates the operator's router, which is configured on the loopback interface 0,

, # 001111b; RS = 1, rorw = 0, E = 0, prepare to write dataSETB EMoV P0,CLR ELcall delay2RET ; Display character programsDisplay:MoV R1, #00Next:MoV A, r1Movc A, @ A + dptr; send the sequence codes referred to by dptr to the LCD display one by oneCjne A, #21 h, DSL; To The Terminator "!" OtherwiseRETDSL:Lcall wrtd; call and display subprogramsINC r1Sjmp next First:MoV A, # 0000000b; the address of ddram is set to 80 h, that is, the character to be displayed starts from the second position in lin

, debug_reloc_end;2) Use R0, R7, R8 respectively to save the values of R0, R1, R2 (respectively, 0, Machinetype, atag pointers), R9 is the value of CPSR;3) R2 save CPSR, determine whether the last 2bit is 0, that is, whether the user mode, not the case is set to the SVC mode, and the R9 in the cpsr saved to SPSR;4) Put the final kernel file address in the R4, one way is through the pc0xf8000000 + text_offset; one way is Zreladdr;text_offset =??ZRELADD

__reboot. 7.bionic/libc/unistd/reboot.c int reboot (int mode) {return __reboot (Linux_reboot_magic1, Linux_reboot_magic2, mode, NULL); } Bingo! Sure enough, so to say reboot (reason)-> reboot (rb_autoboot)-> __reboot (Linux_reboot_magic1, Linux_reboot_magic2, linux_ Reboot_cmd_restart, NULL), if it is so good to write directly so as to avoid around this layer. Second, kernel domain8.__reboot came to the core through Syscall.Here in some space to briefly introduce Syscall

', ' V3 'Insert the name of the specified column belowPut ' t1 ', ' R4 ', ' f1:c1 ', ' v1 'Put ' T1 ', ' R5 ', ' f2:c2 ', ' v2 'Put ' T1 ', ' R6 ', ' f3:c3 ', ' v3 'HBase (main):245:0> scan ' T1 'ROW Column+cellR1 COLUMN=F1:, timestamp=1335407967324, VALUE=V1R2 COLUMN=F2:, timestamp=1335408004559, Value=v2R4 column=f1:c1, timestamp=1335408640777, VALUE=V1R5 Column=f2:c1, timestamp=1335408640822, Value=v2R6 column=f1:c6, timestamp=1335412392258, Value=v3R6 column=f2:c1, timestamp=1335412384739,

: s3c24xx_uda134x (uda134x)TCP Cubic RegisteredRpc:registered UDP Transport module.Rpc:registered TCP Transport module.Lib80211:common Routines for IEEE802.11 driversS3C2410-RTC s3c2410-rtc:setting system clock to 2009-03-05 18:52:59 UTC (1236279179)Root-nfs:no NFS server available, giving up.Vfs:unable to mount Root FS via NFS, trying floppy.Vfs:cannot Open Root Device "Mtdblock2" or Unknown-block (2,0)Please append a correct "root=" boot option; Here is the available partitions:1F00 262144 mtd

is as follows: [CPP] view plain copy addr0,r1,r2 nbsp;@r0=r1+r2 Addr0,r1, #256 @R0=R1+256 addr0,r2,r3,lsl#1@r0 =R2+ (r3 2.2 with carry addition instruction ADC adc{conditions}{s} purpose register, operand 1 NBSP;ADC instruction is used to add two operands, plus the value of the C condition flag in CPSR, and store the results in the destination register. It uses a carry flag bit so that you can do the addition of a number larger than 32 bits, and be careful not to forget to set the S s

+ + language4. Use the cross-compilation tool to compile the C + + native code and finally link to the *.so executable5, the actual implementation of Java code to communicate with the local C + + codeNDK installation process:Under the premise that the computer has already configured the Android environment, only need to download the NDK (R7 above version), this is a compressed package, decompression is available. Note: Prior to

2 sets of 2000-Price AMD APU Configuration program, interested computer enthusiasts together to see, welcome to Pat Bricks. 2000 Yuan to buy what computer Configuration good? 2 sets of cost-effective APU Computer Configuration recommended accessories name brand model reference price processor amd APU a10-7890k (box) ￥899 heatsink boxed auto -- video card > Now the strongest

/myproject without selecting the revision number, and reintegrate merges all the modifications on branch to trunk. The following steps, as in the 9th step above, are no longer verbose. If no accident, branch will be successfully merged into trunk, you need to do is to merge the trunk hurriedly commit. 12, submitted after the merger of the trunk Right-click on the merged item, Temp-> Commit. 13, Delete branch If you think your new feature has been developed, you can delete your branch. 14, view

'; Query OK, 2 rows affected, 1 Warning (0.19 sec) records:1 duplicates:1 warnings:1 mysql> select * from t1; +---+----+----+ | a | b | +---+----+----+ | 1 | c3 | c2 | | 2 | A | | | 3 | R5 | R3 | | 5 | R4 | R5 | +---+----+----+ 4 rows in Set (0.00 sec) "" A=5 time, the original C value is still in, this means that when the key sometimes, only the following Udate action statements are executed. 2.2 Check the auto_increment condition again. mysql> INSERT INTO T1 (a,b) Select ' 3 '

51 single chip microcomputer precise delay procedure (crystal oscillator 12MHz, a machine cycle 1us.)Several precise delay procedures: in the calculation of accurate delay, the most easily overlooked is the calculation of the loop outside the part of the delay,This part does not affect the program in situations where the time requirement is not high. A. 500MS Delay subroutine program:. (Crystal oscillator 12MHz, a machine cycle of 1us.)void delay500ms (void){unsigned char i,j,k;for (i=15;i>0;i--

guiding ideology of ROP is to hope that all malicious attacks are concatenated through the sequences of instructions in existing functions. This piece of instruction is a logical fragment that can be connected to each other by means of a jump instruction (x86 on the RET and jmp on ARM, which is the relevant instruction of the PC), called Gadget. The ultimate manifestation of ROP attacks is a string of gadgets.The power of ROP is that any logic can be realized by finding an overflow defect, and

Feroceon2. the CPU is responsible for all SATA transmissions, so there must be a service responsible for configuring SATA hardware to read data in the cache. If I find this service, I may run my code before it. After reading a lot of code, setting a lot of breakpoints, and modifying it many times, I finally found a qualified service. I connected the service to run my code before execution. Here is the original code: 000167BE ; r0 - slot in sata_req000167BE sub_0_167BE:000167BE P