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Re: [cdt-debug-dev] About working with memory in debugger
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Thomas Fletcher writes:
> On Wed, 30 Oct 2002, Igor S Zamjatin wrote:
>
> > I'm really sorry but I can't find any mentions about that "undocumented
> > commands".
> >
> > Could you please post here some information about that commands or about
> > where can I find it
>
> Igor,
>
> Not exactly sure what you mean you can't find any mention
> of undocumented commands, but what I was saying about gdb last
> time I just verified. You can set any memory address by:
>
> (gdb) c
> Continuing.
> Breakpoint 1, main (argc=1, argv=0x8047af4) at /home/thomasf/cvs/utils/f/fdisk/fdisk.c:213
> warning: Source file is more recent than executable.
> 213 disk = NULL;
> (gdb) p argc
> $1 = 1
> (gdb) p &argc
> $2 = (int *) 0x8047adc
> (gdb) set *(int *)0x8047adc = 12
> (gdb) p argc
> $3 = 12
> (gdb)
>
>
> so all you need to do is construct the right address to pass
> to the memory "set" MI command.
Please do not use the set command. The command to use, as I already
said in this thread, is in gdb/mi/mi-main.c. It is sufficiently
commented to be used easily. You invoke it like this:
-data-write-memory ADDR FORMAT WORD-SIZE VALUE
/* DATA-MEMORY-WRITE:
COLUMN_OFFSET: optional argument. Must be preceeded by '-o'. The
offset from the beginning of the memory grid row where the cell to
be written is.
ADDR: start address of the row in the memory grid where the memory
cell is, if OFFSET_COLUMN is specified. Otherwise, the address of
the location to write to.
FORMAT: a char indicating format for the ``word''. See
the ``x'' command.
WORD_SIZE: size of each ``word''; 1,2,4, or 8 bytes
VALUE: value to be written into the memory address.
Writes VALUE into ADDR + (COLUMN_OFFSET * WORD_SIZE).
Prints nothing. */
enum mi_cmd_result
mi_cmd_data_write_memory (char *command, char **argv, int argc)
{
[...]
}
>
> As far as the work in the IDE with respect to the memory view,
> you just need to look at the checkins that Mikhail Khodjaiants
> has been making. Specificially the Java code is at:
>
> http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/memory/?cvsroot=Tools_Project
>
> Does this help in any way?
>
> Thanks,
> Thomas
> -------------------------------------------------------------
> Thomas (toe-mah) Fletcher QNX Software Systems
> thomasf@xxxxxxx OS Technology Developer
> (613)-591-0931 http://www.qnx.com/
>
>
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