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[Bug translator/4186] New: Cross compiling for sub architectures (e.g. i586 target i686 host) fails
- From: "wcohen at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 14 Mar 2007 21:50:28 -0000
- Subject: [Bug translator/4186] New: Cross compiling for sub architectures (e.g. i586 target i686 host) fails
- Reply-to: sourceware-bugzilla at sourceware dot org
SystemTap generates a test to check the architecture of the target machine and
make sure that it matches. When doing cross compiling for the olpc machine the
kernel is a i586 architecture. systemtap_module_init has the following code in it:
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
const char* machine = utsname()->machine;
const char* release = utsname()->release;
#else
const char* machine = system_utsname.machine;
const char* release = system_utsname.release;
#endif
if (strcmp (machine, "i686")) {
_stp_error ("module machine mismatch (%s vs %s)", machine, "i686");
rc = -EINVAL;
}
when building for the olpc kernel the "i686" strings should be "i586". The
translator needs to figure out the architecture. It might be able to do this
from the arch in the directory name, like the following:
/usr/src/kernels/2.6.21-20070312.olpc1p.3eca75102a57502-i586
The make also need to build the module for the subarchitecture.
--
Summary: Cross compiling for sub architectures (e.g. i586 target
i686 host) fails
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: translator
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: wcohen at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=4186
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