* Difference in fields symtab and ddbsymtab in elf_file_t structure (defined in link_elf.c) in FreeBSD
@ 2012-12-05 6:55 Shrikanth Kamath
2012-12-06 16:26 ` Pedro Alves
0 siblings, 1 reply; 2+ messages in thread
From: Shrikanth Kamath @ 2012-12-05 6:55 UTC (permalink / raw)
To: gdb
This is regarding the fields in the structure "elf_file_t" in link_elf.c.
For some kernel modules the symtab field is different from the
ddbsymtab field for some it is the same, would like to know what is
the difference between the two and how to enable ddbsymtab?
Does enabling "-g" in CFLAGS make the binary build the ddbsymtab
different from symtab?
The problem is lookup for some symbols in the kernel module that I
built returns with undefined, on inspecting it was getting a ENOENT
from the function
link_elf_lookup_symbol()
{
...
/* If we have not found it, look at the full table (if loaded) */
if (ef->symtab == ef->ddbsymtab)
return (ENOENT);
...
}
--
Shrikanth R K
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Difference in fields symtab and ddbsymtab in elf_file_t structure (defined in link_elf.c) in FreeBSD
2012-12-05 6:55 Difference in fields symtab and ddbsymtab in elf_file_t structure (defined in link_elf.c) in FreeBSD Shrikanth Kamath
@ 2012-12-06 16:26 ` Pedro Alves
0 siblings, 0 replies; 2+ messages in thread
From: Pedro Alves @ 2012-12-06 16:26 UTC (permalink / raw)
To: Shrikanth Kamath; +Cc: gdb
On 12/05/2012 06:55 AM, Shrikanth Kamath wrote:
> This is regarding the fields in the structure "elf_file_t" in link_elf.c.
> For some kernel modules the symtab field is different from the
> ddbsymtab field for some it is the same, would like to know what is
> the difference between the two and how to enable ddbsymtab?
There's no such file in GDB. Seems like you want to contact a FreeBSD list instead.
--
Pedro Alves
^ permalink raw reply [flat|nested] 2+ messages in thread
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