RE: insmod / add-symbol-file

Thanks for the advise; unfortunately, it does not work... :-<<

I did some additional tests, and all symbols in the .text-segment are OK,
the others use the same .text offset....

Fred



-----Original Message-----
From: Rudolf Ladyzhenskii
To: 'Goddeeris Frederic'
Sent: 12/7/01 1:38 AM
Subject: RE: insmod / add-symbol-file

try compiler option -ggdb

Rudolf

-----Original Message-----
From: Goddeeris Frederic [mailto:Frederic.Goddeeris@siemens.atea.be]
Sent: Thursday, December 06, 2001 11:10 PM
To: 'linuxppc-embedded@lists.linuxppc.org'
Subject: insmod / add-symbol-file



 Hi,

I am loading a kernel module (insmod) on the target and get
the following
info:
....
Sections:       Size      Address   Align
.this           00000060  c4843000  2**2
.text           00000470  c4843060  2**2
.rodata         00000244  c48434d0  2**2
.data           00000058  c4843714  2**2
.sdata          00000014  c484376c  2**2
.vtop_fixup     00000004  c4843780  2**1
.kstrtab        0000008f  c4843784  2**0
.bss            00000014  c4843814  2**2
.plt            00000040  c4843830  2**4
__ksymtab       00000058  c4843870  2**2
.....
c484376c d .sdata
.....
c4843774 D f_PWMCounter
.....

In GDB I load the symbol-table:
(gdb) add-symbol-file TestDrv.o -T.text 0xc4843060 -T.sdata 0xc484376c
-T.data 0xc4843714
add symbol table from file "TestDrv.o" at
	.text_addr = 0xc4843060
	.sdata_addr = 0xc484376c
	.data_addr = 0xc4843714

I am able to set breakpoints and step in the code, but gdb
does think the
variable f_PWMCounter is at 0xc4843068 (this is .text+8)
while it is at
0xc4843774 (this is .sdata+8) ....

(When I ask to show *((char*)0x0xc4843774), I get the correct
value, so MMU
translation is working...)

When ask for an objdump of the file I see:
00000008 g     O .sdata 00000001 f_PWMCounter

So I am wondering why gdb does not see this variable is in the .sdata
section.

I use the gcc and gdb from the MontaVista CDK 2.0 for
PPC_8xx. I compiled
the module with "-O2 -g" options.

Thanks,
Frederic

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