r9 580x

, the system must respond faster, if the duration of processing is short, it is set to FIQ. Otherwise, IRQ is set. If the interrupt is set to IRQ, when the interrupt occurs, the interrupt processor tells arm through the IRQ request line that an IRQ interrupt occurs and the arm switches to IRQ mode to run. Similarly, if the interrupt is set to FIQ, when the interrupt occurs, the interrupt processor informs the arm through the FIQ request line, and the arm knows that there is a FIQ interrupt, the

in: dsplinkk cmemkCPU: 0PC is at pmgr_msgq_close + 0x18/0x84 [dsplinkk]LR is at drv_ioctl + 0x2a4/0x34c [dsplinkk]PC: [SP: c5e61f00 IP: c5e61f20 FP: c5e61f1cR10: 00900036 R9: c5e60000 R8: c002a154R7: bf015430 R6: 1276f04 R5: 00008000 R4: 0000ff00R3: ff000000 R2: Listen 6c11 r1: Listen 6f04 R0: 0002ff00Flags: nzcv irqs on fiqs on mode svc_32 segment userControl: 5317f table: 858e8000 DAC: 00000015Process image_sharpen (PID: 1214, stack Limit = 0xc5e60

Debugging: Use of the addr2line command in debugging.Cause: After i850 WiFi is enabled, rootfs restarts when Goole maps is used. The printed log information is as follows://////////////////////////I/debug (3411 ): ************************************************I/debug (3411): Build fingerprint:'Prowave/i850/i850/: eclair/eng. zhangjiejing.201002.16.113200: Eng/test-keys'I/debug (3411): PID: 3436, TID: 3475 >>>> system_serverI/debug (3411): Signal 11 (SIGSEGV), fault ADDR 00000000I/debug (3411):

(INDEX) // unreference, write a byte '% {}$ lln '. format (INDEX) // unreference, write eight bytes % 1 $ lx: RSI % 2 $ lx: RDX % 3 $ lx: rcX % 4 $ lx: r8 % 5 $ lx: R9 % 6 $ lx: The first qword on the stackCheck protection measures Follow the routine, firstchecksec crack: We can see that the Canary found and the unexecutable stack (nx) measures are enabled, which clearly allows us to start elsewhere. Run the following command: We need to ent

follows,SWI (# num | 0x900000) (0x900000 is a magic value) That is to say, the original call method (old Abi) is implemented by following the call number in the SWI command. Now it is based on the value in R7. Now let's look at two macros. One isConfig_oabi_compat indicates compatibility with the old Abi. The other isConfig_aeabi indicates specifying the current method as Eabi. These two macros can be configured at the same time, neither deserve nor can be configured. You can refer to: http://f

[Symptom]Install version 4.5, and wait for the login interface (Earth Interface) to stop 3-5 seconds to restart the mobile phone [Analysis]D/sensors (223): sensorbase: setenable: menabled [0] = 1, menabled [1] = 0, menabled [2] = 0D/sensors (223): Activate: handle = 2; DRV =-22, enable = 1E/sensorservice (223): Error activating sensor 2 (unknown error:-1)D/sensors (223): setdelay: handle = 0; DRV = 0I/debug (143 ): **************************************** ********I/debug (143): Build fingerprint

43891f6c R7 42084eb0 I/debug (971): R8 4a570b80 R9 42084ea8 10 42084e94 FP 0011f3e0 I/debug (971): IP a7f0110c SP 4a570b50 LR ae203247 PC 815009ba CPSR a0000030 I/debug (971): #00 PC 000009ba/system/lib/HW/sensors. Default. So I/debug (971): #01 PC 00003244/system/lib/libandroid_servers.so I/debug (971): #02 PC 00011cf4/system/lib/libdvm. So I/debug (971): #03 PC 0003f194/system/lib/libdvm. So I/debug (971): #04 PC 00016cb8/system/lib/libdvm. So I/de

0x20000100 of the kernel. In this way, the parameter linked list is created. 4. kernel receiving ParametersThe following describes how the Linux kernel receives the kernel parameters passed by bootloader from the zimage Image Based on the ARM architecture, In the file ARCH/ARM/boot/compressed/head. S, start is the starting point of zimage. Some code is as follows:Start:MoV R7, r1MoV R8, r2......MoV r0, r4MoV R3, r7BL decompress_kernelB call_kernelCall_kernel:......MoV r0, #0MoV R1, r7MoV R2, R8

cr_alignment @ r7 . Long init_thread_union + thread_start_sp @ sp The visible value of _ switch_data is equivalent to the pointer address of the _ mmap_switched () function. The _ mmap_switch () function is defined as follows: _ Mmap_switched: ADR R3, _ switch_data + 4 Ldmia R3 !, {R4, R5, R6, R7} CMP R4, R5 @ copy data segment if needed 1: cmpne R5, R6 Ldrne FP, [R4], #4 Strne FP, [R5], #4 BNE 1b MoV FP, #0 @ clear BSS (and zero FP) 1: CMP R6, r7 Strcc FP, [R6], #4 BCC 1b Ldmia R3, {R4, R5

For details about how to debug the gdb process on Android, refer to the previous article. If an android application contains a dynamic library call, a bunch of addresses are provided after the application exits unexpectedly, For example I/debug (841): Signal 11 (SIGSEGV), fault ADDR deadbaadI/debug (841): R0 00000000 R1 afd1498d R2 00000027 R3 00000070I/debug (841): R4 afd42328 R5 00000000 R6 00000000 R7 4e6fae30I/debug (841): R8 00100000 R9 a811c2f9

position of the task stack** OPT: additional parameter. The current version is useless for this function. For more information, see the OPT parameter of ostaskcreateext ().** Output: Stack top pointer position** Global variables:** Call module:**************************************** **************************************** ************************/ OS _stk * ostaskstkinit (void (* task) (void * PD), void * pdata, OS _stk * ptos, int16u OPT){OS _stk * STK; Opt = OPT;/* 'opt' is not used. The fu

'elf _ common_init ':./Linux/include/ASM/elf. h: 166: Error: structure has no member named 'r8'./Linux/include/ASM/elf. h: 166: Error: structure has no member named 'r9'./Linux/include/ASM/elf. h: 166: Error: structure has no member named 'r10'./Linux/include/ASM/elf. h: 166: Error: structure has no member named 'r11'./Linux/include/ASM/elf. h: 167: Error: structure has no member named 'r12'./Linux/include/ASM/elf. h: 167: Error: structure has no mem

remove the devfs, although you can also find the corresponding source code in the kernel source code, you can also add it to the kernel, but it is not very easy to use. The version later than 2.6.13 is changed to support udev. I don't know much about udev. I am studying it. So if you are a linux-2.6.13 version of the kernel, compile it to add the dev filesystem surpport option in the pseudo filesystems, that is, to add devfs support, if the version after the linux-2.6.13, you can check whether/

: ---------------------------------- R9 | (no author information) |... Ossxp.com anonymous commit TestAnonymous Submission causes no author informationCheck the version library permission control and prohibit anonymous submission.9.Sending... transfer file data. SVN: submission failed (details are as follows): SVN: commit blocked by pre-commit hook (exit code 1) with output: The submission description should contain at least 4 characters, or it is too

){ return x The above code is very concise. Let's take a look at the Code Compiled by GCC-O3. The default-O Option Code will not be listed. You can try the following by yourself: . Compare2 :. lfb40: XOR, 4 // R3 = x, r4 = ycmpw, 3, 4 srawi 11, 0, 31 // R0 arithmetic right shift 31-bit Li 9,-1xor, 0 subf 3, 3, 11 // This command means R3 = R11-r3blt 7 ,. l15srwi 9, 3, 31 // R9 = R3 logic shifts 31 bits to the right. l15: extsw 3, 9blrI probably kn

in the Assembly. The 16 registers have another naming method. A1 ~ A4 corresponds to R0 ~ R3 serves as the input parameter of the function. R0 is the return value. V1 ~ V6 for the corresponding R4 ~ R9, used as a local variable. FP corresponds to R11 initialization frame pointer register IP corresponding to R12 internal process call register, SP corresponds to R13 Stack pointer. LR corresponds to R14, And the link register PC corresponds to R15 pro

Tags: using file sp c r BS Learning Object WebAmong the knowledge points to be mastered at the Web Front-end, PS is essential. I just learned PS today, and I feel very interesting! The use of shortcut keys can save a lot of unnecessary operations. Below I will summarize the shortcut keys I used today:1. Return: Ctrl + z (one step)2. Return Value: ctlr + ALT + z (multiple steps)3. Free Transformation: ctlr + T4. Pull object: Press and hold the Space key + mouse to pull the object5. View Size Chan

small program that calls settimefoday. After 60 s, the following warning occurs: Try it on arm in the same way BUG: Soft lockup-CPU #2 stuck for 22 s! [Settimeofday: 1, 485]Modules linked in: PID: 485, COMM: settimeofdayCPU: 2 not tainted (3.3.0-RC3 + #48)PC is at do_settimeofday + 0xd8/0xe4LR is at do_settimeofday + 0xd7/0xe4PC: [>] LR: [Arm-non-linux-addr2line-e vmlinuxWhich code line can be obtained for 800491e8?SP: 86d97f30 IP: 00000000 FP: 00000000R10: 00000000

Source: http://blog.csdn.net/embeddedfly/article/details/6150452 Detailed analysis of MMU setting process in ce5.0-eboot Assembly startup. s The following is the startup code of the smdk Development Board startup. S.;------------------------------------------------------------------------------- Memorymap equ 0x2a4Bank_size equ 0x00100000; 1 MB per bank in memorymap ArrayBank_shift equ 20 ; Define Ram space for the page tables:;Phybase equ 0x30000000; physical startPTS equ 0x30010000; 1st leve

-togif.gif-x 600-Y 600 10. pmapPmap can report the memory usage of one or more processes. Use pmap to determine which process on the host causes memory bottleneck due to excessive memory usage.Pmap 1: initStart size RSS dirty perm Mapping08048000 484 K 244 K 0 k r-XP/sbin/init080c1000 4 K 4 K 4 k rw-P/sbin/init080c2000 144 K 24 k 24 k RW-P [heap]Bfb5b000 84 K 12 K 12 k rw-P [Stack]Ffffe000 4 K 0 K 0 K --- P [vdso]Total: 720 K 284 K 40k232k writable-private, 488 K readonly-private, and 0 K shared