Re: Re: the GDB print command truncates long strings

[Shantanu K Roy]

Hi Francesco,

Did you try:

printf "%s",format? 

Regards,
Shantanu

On Tue, 17 Mar 2009 Charles Manning wrote :
>On Tuesday 17 March 2009 06:46:06 Francesco Montorsi wrote:
> > Hi,
> >      while debugging a program I've found that the print command truncates
> > some long strings:
> >
> > (gdb) p (char*)format
> > $7 = 0xd47e058 "datetime.h: a long long long long long long long long long
> > long long long long long long long long long long long long string"...
> >
> > I need to explore the content of the string and want GDB to print it
> > entirely... how can I do?
>
>You can also use the x command.
>
>x is also very useful for exploring buffers etc too.
>
>
>(gdb) help x
>Examine memory: x/FMT ADDRESS.
>ADDRESS is an _expression_ for the memory address to examine.
>FMT is a repeat count followed by a format letter and a size letter.
>Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),
>  t(binary), f(float), a(address), i(instruction), c(char) and s(string).
>Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).
>The specified number of objects of the specified size are printed
>according to the format.
>
>Defaults for format and size letters are those previously used.
>Default count is 1.  Default address is following last thing printed
>with this command or "print".
>
>
>Using x/ns will output n characters in string format, so it your string is up
>to, say 300 characters long you can say
>
>x/300s
>
>For example here is an output for x/200s.
>
>(gdb) x/200s yaffs_guts_c_version
>0x80605c0:      "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $"
>0x80605fb <__PRETTY_FUNCTION__.3188>:      "yaffs_GetBlockInfo"
>0x806060e:      ""
>0x806060f:      ""
>0x8060610:      "**>> yaffs: getBlockInfo block %d is not valid\n"
>0x8060640:      "yaffs_getblockinfo.h"
>0x8060655:      "0"
>0x8060657:      ""
>0x8060658:      "Out of temp buffers at line %d, other held by lines:"
>....
>
>
>