$ uname -a
Linux asac-desktop 2.6.31-105-imx51 #14-Ubuntu Tue Oct 13 21:13:53 UTC 2009 armv7l 
GNU/Linux

$ gcc --version
gcc-4.4.real (Ubuntu 4.4.1-4ubuntu8) 4.4.1
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

v8.gyp contains a number of the following condition blocks that are causing the error:

        # The ARM assembler assumes the host is 32 bits, so force building
        # 32-bit host tools.
        # TODO(piman): This assumes that the host is ia32 or amd64. Fixing the
        # code would be better
        ['target_arch=="arm" and _toolset=="host"', {
          'cflags': ['-m32'],
          'ldflags': ['-m32'],

afaiui, those condition blocks were added for X-compile case. is there a way to 
identify that we are cross compiling? maybe "... and host_arch!="arm" ?

croscompiling is when host != target

Do we want to mark this Upstream and point it to 
http://code.google.com/p/v8/issues/detail?id=539 ? Or does Chromium want to take 
ownership of this bug?

We should take ownership. I'll stick a uname -m somewhere to detect the host arch.

i thought something like this:

Index: build/common.gypi
===================================================================
--- build/common.gypi	(revision 35439)
+++ build/common.gypi	(working copy)
@@ -44,8 +44,10 @@
           # hosts should pass an explicit target_arch to gyp.
           'target_arch%':
             '<!(uname -m | sed -e
"s/i.86/ia32/;s/x86_64/x64/;s/amd64/x64/;s/arm.*/arm/")',
+          'host_arch%': '<(target_arch)',
         }, {  # OS!="linux"
           'target_arch%': 'ia32',
+          'host_arch%': '<(target_arch)',
         }],
       ],
 
@@ -79,6 +81,7 @@
     'branding%': '<(branding)',
     'buildtype%': '<(buildtype)',
     'target_arch%': '<(target_arch)',
+    'host_arch%': '<(host_arch)',
     'toolkit_views%': '<(toolkit_views)',
     'chromeos%': '<(chromeos)',
     'inside_chromium_build%': '<(inside_chromium_build)',

hmm. maybe that should be in v8 only/too?

The following revision refers to this bug:
    http://src.chromium.org/viewvc/chrome?view=rev&revision=35993 

------------------------------------------------------------------------
r35993 | piman@chromium.org | 2010-01-11 20:29:59 -0800 (Mon, 11 Jan 2010) | 5 lines
Changed paths:
   M http://src.chromium.org/viewvc/chrome/trunk/src/build/common.gypi?r1=35993&r2=35992

linux: add host_arch detection

BUG= 31274 

Review URL: http://codereview.chromium.org/547019
------------------------------------------------------------------------

The fix has been pushed to v8 but hasn't trickled down yet.

This should be fixed.

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