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mdb Solaris Debuging mini HowTo

Oct 122011

Sveiki,

norėdami įdiegti Solaris 10u9 mdb programėlę susidiekime SUNWmdb ir SUNWmdbr paketus. Visų pirma prijunkime CD.ISO, kas gali būti atlikta tik iš globalios zonos (Jei nenaudojate konteinerių, tai galėjote pabraukto teksto ir neskaityti ):
lofiadm -a /tmp/software.iso /dev/lofi/1 mount -F hsfs -o ro /dev/lofi/1 /mnt
Pereikim į mum reikiamą aplanką
cd /mnt/Solaris_10/Product
Susimeskim visą tai:
pkgadd -d . SUNWmdb pkgadd -d . SUNWmdbr

Toliau beliko arba prisijungti (ir sustabdyti) procesą: mdb -p ĖPID arba atidaryti core/dump failą: mdb core_dump
Na va o daba mdb komandos:

Control Commands
Input & Output Commands
Format Specifications
System Examination
Target Examination
Tracing, Watchpoints & Breakpoints
General Debugging

Control Commands
`$<` or `$<<`	Replace input with a macro or source a macro.
`$>`filename or `::log` filename	Log session to a file. If no filename, use default.
`\|`	Pipe. Allows simple commands to be joined.
`!`	Shell escape. Acts as a pipe to a shell command. (Not available in `kmdb`.)
`//`	Comment. Following words on the same line are ignored.
`$M`	Show built-in macros (Kernel debugger only).
`$P`string	Set prompt to string.
`$Q` `::quit`	Quit. (From `kmdb`, use `-u` option to avoid exiting to `ok>` prompt.)
`$W`	Re-open target in writable mode.
`$p`	Change target context.
`$w`	Control output page width.
`:A`	Attach to a process or core file.
`:R`	Release attachment.
`:k`	Kill and release targets.
`$v`	Print non-zero variables.
`>` `::typeset`	Assign a variable.
`::dcmds`	Print available commands.
`::nm`	Print symbol table. (`-P` specifies a private symbol table. Manipulated with `::nmadd`and `::nmdelete`
`::help` dcmd	Provide usage notes on a dcmd.
`::typeset`	Manipulate variable.
`::walk`	Walk data structure.
`::walkers`	List available walkers.

Input & Output Commands
`$<` `$<<`	Replace input with a macro or source a macro.
`$>`filename	Log session to a file. If no filename, use default.
address`/`format-spec `/`format-spec	Read the value in a memory addressformatted as format-spec. If no address is provided, use dot.
address`/W` value	Write the value in the four bytes starting with address. If no address is provided, usedot. `v`, `w` or `Z` may also be used instead of `W`to write 1, 2 or 8 bytes, respectively.
address`=`format-spec `=`format-spec	Format immediate value of address or dot.
`?`	Read/write primary object file.
`@`format-spec	Read/write physical address as format-spec.
`\`format-spec	Read/write physical address as format-spec.

The difference between / and = is subtle. For example, to find the address holding the value of the maxphys symbol in decimal, we would run:
maxphys=D
To find the value inside the above address, we would use / like:
maxphys/D

Format Specification
Note that the `::formats` dcmd prints out a full list of supported formats.
`D`	Display in signed decimal.
`i`	Display as a disassembled instruction.
`U`	Display in unsigned decimal.
`X`	Display in signed hexidecimal.
`0t`xyz	Specifies xyz as a decimal value.

System Examination
`cpu$<cpus`	Display `cpu0`.
`cpu`n`$<cpu`	Display cpu #n.
`$<msgbuf`	Display message buffer, including all console messages up to panic.
`<`sp`$<stacktrace`	Use the stack pointer address (sp) to display a detailed stack trace.
`$r` `::regs`	Display general registers, including program counter and stack pointer.
`::callout`	Print callout table.
`::cpuinfo -v`	Information about activities of CPUs, including runqueue inhabitants.
`::cpuregs ::cpuregs -c cpuid`	Print CPU registers. `kmdb` only. Can specify a cpu.
`::cpustack ::cpustack -ccpuid`	Print CPU stack. `kmdb` only. Can specify a cpu.
`::dnlc`	Print DNLC contents.
`::ipcs`	Print SVR4 IPC information.
`::kmalog`	Display kernel memory log and stack traces.
`::kmastat`	Print current kernel memory allocations
`::memstat`	Print current memory usage.
`::nm`	Print symbol table. (`-P` specifies a private symbol table. Manipulated with `::nmadd`and `::nmdelete`
`::ps`	List processes with associated threads and lwps
`::ptree`	Print process tree.

Target Examination
`$?`	Print status and registers.
`$C`	Show call trace and arguments, saved frame pointer and saved program counter for each stack frame.
`$X`, `$Y`, `$x`, `$y` and`::fpregs`	Display floating point registers.
`$c`	Display stack backtrace.
`$e`	Print list of global symbols.
`$f`	Print list of source files.
`$l`	Print representative thread’s lwp ID.
`$m`	Print address space mappings.
`$r` `::regs`	Display general registers, including program counter and stack pointer.
`as::as2proc`	Convert as pointer to a `proc_t` pointer.
`::devbindings`	`devinfo` nodes bound to device-name ormajor-num.
`::devinfo`	Detailed `devinfo` of node.
`::devinfo2driver`	Driver name for this node.
`::devnames`	Print `devnames` array.
`::devt`	Display `dev_t`‘s major & minor numbers.
`::did2thread`	Kernel thread for this ID.
`::dump`address	Dump memory from address.
`::findfalse`	Find potentially falsely shared structures.
`::findleaks`	Search for potential kernel memory leaks.
`::findlocks`	Find locks held by specified thread.
`threadp::findstack`	Find kernel thread stack for associated thread.
`::inode`	Display summary of `inode_t`.
`::kmsqid`	Display message queue structure (`kmsqid`).
`::ksemid`	Display a semaphore structure (`ksemid`).
`::kshmid`	Display a shared memory structure (`kshmid`).
`::pgrep pattern`	Find `proc_t` pointers matching the pattern.
`0tPID::pid2proc`	Convert decimal PID to a `proc_t` pointer.
`procp::ps`	Process information matching the associated `proc_t`.
`::status`	Print summary of target status.
`sobj::walk blocked`	Walk threads blocked on a particular synchronization object (sobj).
`procp::walk thread`	Walk threads of associated process.
`sobj::wchaninfo -v`	Blocked on condition variables for a particular synchronization object (sobj).
`address::whatis`	Attempts to identify address contents.
`vnode::whereopen`	Processes with vnode open.

Tracing, Watchpoints and Breakpoints
(Breakpoints for kernel debugger only.)
`$b`	Show all breakpoints.
`$i`	Print list of ignored signals.
`:a`	Set a watchpoint.
`:b`	Set a breakpoint.
`:c` or `::cont`	Continue target execution.
`:d`	Delete a breakpoint.
`:e`	Step over next instruction.
`:i`	Step over next instruction.
`:k`	Kill and release targets.
`:p`	Set execute access watchpoints.
`:r`	Run new target process.
`:s`	Step target to next instruction.
`:t`	Stop on delivery of specified signals.
`:u`	Step out of current function.
`:w`	Set write access watchpoint.
`:z`	Delete all breakpoints.

General Debugging
`$G`	Toggle C++ demangling.
`$V`	Toggle disassembly mode.
`$g`	Toggle C++ demangling.
`address::dis`	Disassemble text starting at address.

Comparison Operators
`==`	Logical equality.
`!=`	Logical inequality.
`&`	Bitwise AND.
`\|`	Bitwise OR.
`^`	Bitwise XOR.

uptime.php skaiciuotuvas arba 88×31 uptime banneris

Belekas, Fun, Kompai No Responses »

Oct 082011

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Sveiki, turiu darbo, taiatsiranda laiko parašyt skriptukus, nusprendžiau vienu jų pasidalinti.

Pasirašiau 88×31 uptime baneriuką: .

$uptime=shell_exec ("cat /proc/uptime | awk '{print $1}'"); function getTime ($unix_laikas) { if ($unix_laikas<60) { $returnas=intval($unix_laikas); if ($returnas<10) {$returnas="0".$returnas;} return $returnas."!"; } elseif (60<=$unix_laikas && $unix_laikas<3600) { $returnas=intval($unix_laikas/60); if ($returnas<10) {$returnas="0".$returnas;} return $returnas; } elseif (3600<=$unix_laikas && $unix_laikas < 86400) { $returnas=intval($unix_laikas/3600); if ($returnas<10) {$returnas="0".$returnas;} return $returnas; } else { return intval($unix_laikas/86400); } }


function uptime ($s0, $s1, $s2) {

  $iwidth=88; $iheight=31;

 // create a true colour, transparent image

 // turn blending OFF and draw a background rectangle in our transparent colour

 $image=imagecreatetruecolor($iwidth,$iheight);

 imagealphablending($image,false);

 $col=imagecolorallocatealpha($image,255,255,255,127);

 imagefilledrectangle($image,0,0,$iwidth,$iheight,$col);

 imagealphablending($image,true);

 // Alpha blanding is back on.

 // insert image manipulation stuff in here

 $font=3;

 $red=imagecolorallocatealpha($image,0,0,0,0);

 imagestring($image, $font, 1, 0, $s0, $red);

 imagestring($image, $font, 1, 9, $s1, $red);

 imagestring($image, $font, 1, 20, $s2, $red);

 // output the results...

 header("Content-Type: image/png;");

 imagealphablending($image,false);

 imagesavealpha($image,true);

 imagepng($image);

}

if ($uptime<60) { // Sekundes

 $s1="up 0 days";

 $s2="00:00:".getTime($uptime);

} elseif (60<=$uptime && $uptime<3600) { // Minutes

 $tmp=getTime($uptime);

 $s1="up 0 days";

 $s2="00:".$tmp.":".getTime($uptime-($tmp*60));

} elseif (3600<=$uptime && $uptime<86400) { // Valandos

  $tmp=getTime($uptime);

  $s1="up 0 days";

  $s2=$tmp.":";

  $uptime-=$tmp*3600;

  $tmp=getTime($uptime);

 $s2.=$tmp.":".getTime($uptime-($tmp*60));

} else {

 $tmp=getTime($uptime);

 $s1="up ".$tmp ." days";

 $uptime-=$tmp*86400;

 $tmp=getTime($uptime);

 $s2=$tmp.":";

 $uptime-=$tmp*3600;

 $tmp=getTime($uptime);

 $s2.=$tmp.":".getTime($uptime-($tmp*60));

}

$s0=shell_exec("hostname -d"); $s0=substr($s0, 0, strlen($s0)-1); uptime ($s0, $s1, $s2); ?>

Jeigu turite idėjų, kaip visą tai atnaujinti brūkūtelėkite.

Windows 7 boot’inis USB howto linux’e

Belekas, Fun, Kompai, Mąstymai No Responses »

Jul 192011

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Sveiki,

Tikriausiai Jūs jau senokai įrašinėjate Windows 7 naudodami USB raktą… o aš tai dariau pirmą kartą…

Tam man reikėjo ms-sys programėlės bei Windows 7 atvaizdo.

Taip, pirma mums reikia parsipūsti ms-sys.
Išsipakuokime ir įsidiekime:

# kai buvo rašytas šis vedlys 2.2.1 buvo naujausia versija

wget http://downloads.sourceforge.net/project/ms-sys/ms-sys%20stable/2.2.1/ms-sys-2.2.1.tar.gz?r=http%3A%2F%2Fms-sys.sourceforge.net%2F\&ts=1311108133\&use_mirror=switch -O ms-sys-2.2.1.tar.gz

tar -axf ms-sys-2.2.1.tar.gz

cd ms-sys-2.2.1

make

# jei po šios komandos parašo:

make: msgfmt: Command not found

# mums reikia parsisiųsti gettext paketa komanda: aptitude install gettext tada per nauja make

make install

Dabar mes turėtume turėti visas būtinas programas mūsų linuxe.
visų pirma mums reikia susiformatuoti mūsų USB raktą.

cfdisk /dev/sdb

Čia pasirenkame taip, kad vienintelė particija būtų NTFS tipo ir būtų Active bei būtų pažymėta, kaip Bootable, to reikia, jei norime, kad kompiuteris pasikrautų iš USB rakto.
Toliau formatuojame particiją bei ją prijungiame:

mkfs.ntfs -f /dev/sdb1

mkdir /mnt/usb

mount /dev/sdb1 /mnt/usb

Tuomet prijungiame Windows 7 ISO

mkdir /mnt/win7iso

mount -o loop /path/to/win7.iso /mnt/win7iso

Kopijuojame duomenis:

cp -r /mnt/win7iso/* /mnt/usb/

Įrašome įkrovos programėlę į USB:

ms-sys -7 /dev/sdb

atjungiame flęšą bei įrašome darkartelį:

umount /mnt/usb

sync

ms-sys -7 /dev/sdb

sync

Dabar galime atjungti USB laikmeną.
tik nepamirškite, padaryt, kad Jūsų kompiuteris krautųsi iš USB.

Samsung B2710 telefonas

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Jul 112011

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sręsti Jums patiems

URL kodavimas

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Jul 082011

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Gerk Vytauto mineralini vandeni

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Jun 262011

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Mezon ZTE AX326

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Jun 202011

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Sveiki, pasiemiau Mezon’o nauja modemuka, ziuresim, su planu po 19lt/men. he he kompiliuosiu draiveriukus sian vakare…

Pigios valiutos 2011-06-17

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Jun 172011

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Baltarusijos rublis 1 LTL = 2,048.30 BYR
Burundijos Frankas 1 LTL = 500.3788 BIF
CFA Frankai? 1 LTL = 188.0734 XOF 1 LTL = 189.5767 XAF
Ciles Pesai 1 LTL = 192.8428 CLP
Kolumbijos Pesai 1 LTL = 735.5813 COP
Kamaros Frankai 1 LTL = 142.5703 KMF
Kosta Rikos Kolonai 1 LTL = 206.8049 CRC
Irako Dinarai 1 LTL = 478.2974 IQD
Korejos Vonai 1 LTL = 444.9725 KRW
Siaures korejos Vonai 1 LTL = 368.6409 KPW
Libano Svarai 1 LTL = 619.4503 LBP
Mauritanijos Ugijos 1 LTL = 112.9802 MRO
Mongolijos Tugrikai 1 LTL = 513.7603 MNT
Ruanos Frankai 1 LTL = 245.6077 RWF
Somalio Silingai 1 LTL = 657.3892 SOS
Tanzanijos Silingai 1 LTL = 647.0636 TZS
Ugandos Silingai 1 LTL = 995.925 UGX
Zimbabves Doleriai 1 LTL = 155.1159 ZWD

web crontab puslapių sąrašas

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Jun 152011

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Tiesiog nuoroda

http://www.mywebcron.com/

palaiko registraciją per OpenID betkokį.

Husky Pram striukė – pigu.lt

Belekas, Fun 2 Responses »

May 242011

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Sveiki, kaip jumi sekas?

Šiandien nusipirkau Husky Pram stiukytę iš pigu.lt.
Tiesiog noriu į darbą važinėti dviračiu… Šiandien pasitaisiau balniuką… Pakeičiau iš paprasto TORNADO (dviračio modelis) pimpalo (nežinau, jis taip atrodo)… į normalų VAIRAS… JĖĖĖ!!!
Vat tokiu dviratuku važiuosiu, o maniškį MADISON Memphis atidaviau Natkai… heh… vat taip vat… na ką, palinkėkite man sėkmės… Tai va, dviratuku važiuojant reiktų apsisaugoti nuo lietučio… Lietpaltis? suprakaituot gamalia… Taigi pasiėmiau striukytę Husky Pram iš pigu.lt, o ten buvo dydžiai S, M, L, XL… Kokie jie? Taigi radau Husky Pram dydžius šiame PDF

Older Entries

LPIC – Linux Professional Institute Certification

mdb Solaris Debuging mini HowTo

uptime.php skaiciuotuvas arba 88×31 uptime banneris

Windows 7 boot’inis USB howto linux’e

Samsung B2710 telefonas

URL kodavimas

Gerk Vytauto mineralini vandeni

Mezon ZTE AX326

Pigios valiutos 2011-06-17

web crontab puslapių sąrašas

Husky Pram striukė – pigu.lt

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