To import a 99 SE database, select File » Importer Wizard from the File menu. Select the 99SE DDB File Type to import. The import process requires all files, projects and design workspaces that are currently open in Altium Designer to be closed. If this is not the case, you will be prompted to do this first. DDB file is a TINA Shape Library Database.TINA is a circuit simulation and PCB design software package for analyzing, designing, and real time testing of analog, digital, VHDL, MCU, and mixed electronic circuits and their PCB layouts, it is made by Designsoft.
To open DDB file you need to find an application which works with that kind of file. DDB file extension is used by operating systems to recognize files with content of type DDB. Here is some information which will get you started.
How to Open DDB file
- To see if you have an application which support DDB file format you need to double click on the file.
- This will either open it with matching application or Windows will suggest you to look for an application for file extension DDB either on web or on local computer.
- If there is no application on your computer which can open DDB files you need to search on the internet which application can open DDB files.
DDB file purpose
File extensions help computers locate correct application for specific files. Operating systems will not look into the content of the files to be opened, but instead, it will immediately locate the file extension of the file and locate for associated application that can open DDB files. This helps the computer to organize its functions and work much faster. Most operating systems (Windows) require the use of file extensions, but others do not (Unix).
These file extensions are also beneficial for us. By simply looking at the filename, we can determine what type of information is stored to that and what applications can open these files. Have you noticed that when your computer acquires an unknown file, it will ask your permission to look for associated program to open it or look for these programs over the Internet? Yes! These file extensions make the work of the computer easy. Once there is no application associated with the file, then the computer will immediately ask the users assistance to help look for the source files.
DDB File Applications
If you know which application opens file extension DDB and it is not mentioned on our site please e-mail us via contact form.
For more information on how to open DDB files read other articles on this website.
While kgdb as an off-line debugger provides a very high level of user interface, there are some things it cannot do. The most important ones being breakpointing and single-stepping kernel code.
If you need to do low-level debugging on your kernel, there is an on-line debugger available called DDB. It allows setting of breakpoints, single-stepping kernel functions, examining and changing kernel variables, etc. However, it cannot access kernel source files, and only has access to the global and static symbols, not to the full debug information like kgdb does.
To configure your kernel to include DDB, add the options
to your config file, and rebuild. (See The FreeBSD Handbook for details on configuring the FreeBSD kernel).
Once your DDB kernel is running, there are several ways to enter DDB. The first, and earliest way is to use the boot flag -d. The kernel will start up in debug mode and enter DDB prior to any device probing. Hence you can even debug the device probe/attach functions. To use this, exit the loader's boot menu and enter boot -d at the loader prompt.
Ppt to pdf converter pro. The second scenario is to drop to the debugger once the system has booted. There are two simple ways to accomplish this. If you would like to break to the debugger from the command prompt, simply type the command:
Alternatively, if you are at the system console, you may use a hot-key on the keyboard. The default break-to-debugger sequence is Ctrl+Alt+ESC. For syscons, this sequence can be remapped and some of the distributed maps out there do this, so check to make sure you know the right sequence to use. There is an option available for serial consoles that allows the use of a serial line BREAK on the console line to enter DDB (options BREAK_TO_DEBUGGER in the kernel config file). It is not the default since there are a lot of serial adapters around that gratuitously generate a BREAK condition, for example when pulling the cable.
The third way is that any panic condition will branch to DDB if the kernel is configured to use it. For this reason, it is not wise to configure a kernel with DDB for a machine running unattended.
To obtain the unattended functionality, add:
to the kernel configuration file and rebuild/reinstall.
Open Jpg Ddb File
The DDB commands roughly resemble some gdb commands. The first thing you probably need to do is to set a breakpoint:
Numbers are taken hexadecimal by default, but to make them distinct from symbol names; hexadecimal numbers starting with the letters a-f need to be preceded with 0x (this is optional for other numbers). Simple expressions are allowed, for example: function-name + 0x103.
To exit the debugger and continue execution, type:
To get a stack trace of the current thread, use:
To get a stack trace of an arbitrary thread, specify a process ID or thread ID as a second argument to trace.
If you want to remove a breakpoint, use
The first form will be accepted immediately after a breakpoint hit, and deletes the current breakpoint. The second form can remove any breakpoint, but you need to specify the exact address; this can be obtained from:
or:
To single-step the kernel, try:
This will step into functions, but you can make DDB trace them until the matching return statement is reached by:
Ddb File
Note:
This is different from gdb's next statement; it is like gdb's finish. Pressing n more than once will cause a continue.
Ddb Files
Pixelstyle photo editor 3.6.1. To examine data from memory, use (for example):
for word/halfword/byte access, and hexadecimal/decimal/character/ string display. The number after the comma is the object count. To display the next 0x10 items, simply use:
These file extensions are also beneficial for us. By simply looking at the filename, we can determine what type of information is stored to that and what applications can open these files. Have you noticed that when your computer acquires an unknown file, it will ask your permission to look for associated program to open it or look for these programs over the Internet? Yes! These file extensions make the work of the computer easy. Once there is no application associated with the file, then the computer will immediately ask the users assistance to help look for the source files.
DDB File Applications
If you know which application opens file extension DDB and it is not mentioned on our site please e-mail us via contact form.
For more information on how to open DDB files read other articles on this website.
While kgdb as an off-line debugger provides a very high level of user interface, there are some things it cannot do. The most important ones being breakpointing and single-stepping kernel code.
If you need to do low-level debugging on your kernel, there is an on-line debugger available called DDB. It allows setting of breakpoints, single-stepping kernel functions, examining and changing kernel variables, etc. However, it cannot access kernel source files, and only has access to the global and static symbols, not to the full debug information like kgdb does.
To configure your kernel to include DDB, add the options
to your config file, and rebuild. (See The FreeBSD Handbook for details on configuring the FreeBSD kernel).
Once your DDB kernel is running, there are several ways to enter DDB. The first, and earliest way is to use the boot flag -d. The kernel will start up in debug mode and enter DDB prior to any device probing. Hence you can even debug the device probe/attach functions. To use this, exit the loader's boot menu and enter boot -d at the loader prompt.
Ppt to pdf converter pro. The second scenario is to drop to the debugger once the system has booted. There are two simple ways to accomplish this. If you would like to break to the debugger from the command prompt, simply type the command:
Alternatively, if you are at the system console, you may use a hot-key on the keyboard. The default break-to-debugger sequence is Ctrl+Alt+ESC. For syscons, this sequence can be remapped and some of the distributed maps out there do this, so check to make sure you know the right sequence to use. There is an option available for serial consoles that allows the use of a serial line BREAK on the console line to enter DDB (options BREAK_TO_DEBUGGER in the kernel config file). It is not the default since there are a lot of serial adapters around that gratuitously generate a BREAK condition, for example when pulling the cable.
The third way is that any panic condition will branch to DDB if the kernel is configured to use it. For this reason, it is not wise to configure a kernel with DDB for a machine running unattended.
To obtain the unattended functionality, add:
to the kernel configuration file and rebuild/reinstall.
Open Jpg Ddb File
The DDB commands roughly resemble some gdb commands. The first thing you probably need to do is to set a breakpoint:
Numbers are taken hexadecimal by default, but to make them distinct from symbol names; hexadecimal numbers starting with the letters a-f need to be preceded with 0x (this is optional for other numbers). Simple expressions are allowed, for example: function-name + 0x103.
To exit the debugger and continue execution, type:
To get a stack trace of the current thread, use:
To get a stack trace of an arbitrary thread, specify a process ID or thread ID as a second argument to trace.
If you want to remove a breakpoint, use
The first form will be accepted immediately after a breakpoint hit, and deletes the current breakpoint. The second form can remove any breakpoint, but you need to specify the exact address; this can be obtained from:
or:
To single-step the kernel, try:
This will step into functions, but you can make DDB trace them until the matching return statement is reached by:
Ddb File
Note:
This is different from gdb's next statement; it is like gdb's finish. Pressing n more than once will cause a continue.
Ddb Files
Pixelstyle photo editor 3.6.1. To examine data from memory, use (for example):
for word/halfword/byte access, and hexadecimal/decimal/character/ string display. The number after the comma is the object count. To display the next 0x10 items, simply use:
Similarly, use
to disassemble the first 0x10 instructions of foofunc, and display them along with their offset from the beginning of foofunc.
To modify memory, use the write command:
The command modifier (b/h/w) specifies the size of the data to be written, the first following expression is the address to write to and the remainder is interpreted as data to write to successive memory locations.
If you need to know the current registers, use:
Alternatively, you can display a single register value by e.g.
and modify it by:
Should you need to call some kernel functions from DDB, simply say:
The return value will be printed.
For a ps(1) style summary of all running processes, use:
Now you have examined why your kernel failed, and you wish to reboot. Remember that, depending on the severity of previous malfunctioning, not all parts of the kernel might still be working as expected. Perform one of the following actions to shut down and reboot your system:
This will cause your kernel to dump core and reboot, so you can later analyze the core on a higher level with kgdb(1).
Ddb File Format
Might be a good way to cleanly shut down the running system, sync() all disks, and finally, in some cases, reboot. As long as the disk and filesystem interfaces of the kernel are not damaged, this could be a good way for an almost clean shutdown.
This is the final way out of disaster and almost the same as hitting the Big Red Button.
If you need a short command summary, simply type:
It is highly recommended to have a printed copy of the ddb(4) manual page ready for a debugging session. Remember that it is hard to read the on-line manual while single-stepping the kernel.
