Symbol at the incorrect address

Symbol at the incorrect address

[Shaun Jackman]

arm-elf-nm and arm-elf-gdb disagree about the location of symbols:

$ arm-elf-nm vmlinux |grep log_buf
01009e8c b __log_buf
01509b48 t __setup_log_buf_len_setup
01002b84 d __setup_str_log_buf_len_setup
01004cac d log_buf
01004ca8 d log_buf_len
01505908 t log_buf_len_setup
$ arm-elf-gdb vmlinux
GNU gdb 6.5.50.20060627-cvs
...
(gdb) p &__log_buf
$1 = (char (*)[16384]) 0x201138c
(gdb) p &log_buf
$2 = (char **) 0x2004cac

It appears as if the section address is being added to the symbol address twice.

Please cc me in your reply. Thanks,
Shaun

binutils 2.17
gcc 4.2.0 20060629
gdb 6.5.50.20060627-cvs
linux 2.6.14.7
	configured for XIP
	.text in flash at 0x1500000
	.data in RAM at 0x1000000

Re: Symbol at the incorrect address

[Daniel Jacobowitz]

On Wed, Jul 12, 2006 at 04:34:18PM -0600, Shaun Jackman wrote:
> It appears as if the section address is being added to the symbol address 
> twice.

Yes, it does.

Sorry, I'm not sure what else you want us to say!  There's no
information in this report except that yes, something appears to be
wrong.  It should be relatively straightforward to either produce a
small test case, or else debug GDB to see what has happened.

-- 
Daniel Jacobowitz
CodeSourcery