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xen-arm
Re: [XenARM] Problem with entry.S, error on instruction 'eors'
Hi, it works well with the cross-chain gcc 4.1.1.
http://arm.cirrus.com/files/tools/arm-linux-gcc-4.1.1-920t.tar.bz2
On Wed, Jun 1, 2011 at 6:06 PM, Shreyansh Jain <shrey.linux@xxxxxxxxx> wrote:
Hi List,
I recently started working/exploring the XEN on ARM Project. As an
initial step I tried to compile the source code of xen-arm (extracted
from [http://wiki.xen.org/xenwiki/XenARM?action="">).
For this purpose, I have used the gcc-arm (3.4.4) cross-compiler as
suggested by the
[http://wiki.xen.org/xenwiki/XenARM?action="">]
document.
Following was the error which I observed:
---8<---
...
traps.c: In function `fixup_exception':
traps.c:56: warning: assignment makes pointer from integer without a cast
entry.S: Assembler messages:
entry.S:368: Error: register expected, not '#0x00000013' -- `eors
r12,#0x00000013'
make[4]: *** [entry.o] Error 1
...
---8<---
I changed the compiler by downloading a gcc-arm version 3.4.3 and the
error persisted. On further searching (Google), I noticed that the
usage of the assembly instruction in entry.S:
---8<---
...
367 ldr r12, [r8, #4]
368 eors r12, #PSR_MODE_SVC <=====
369 beq invoke_hypercall
...
---8<---
is not as expected by the linker (ld). It expects taht the first and
second argument of the code be a register. I have repeatedly checked
that I am working on the exact source code as extracted from the
xen-arm source downloaded from the xen-arm wiki.
Is this a known issue or is it something which I am observing due to
some possible configuration issue at my end. Any pointers/hints would
be sincerely appreciated. Do mail across in case any further
information is required.
Thank you.
-
Shreyansh Jain
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--
Li Haifeng
Laboratory of Service Computing Technology and System
Home page:http://tek-life.org
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