CDA SC510 Guida Utente Scaricare il pdf (Pagina 36)

IST-033576 D2.1.4

A.1.4 Building 32-bit application support on a 64-bit platform

BLCR’s build logic is capable of building both 64-bit and 32-bit libraries at the

same time on most 64-bit platforms it supports. However, because this feature

is new and does not work well with certain setups, it is disabled by default. To

enable it you’ll want to pass conﬁgure the following option:

• –enable-multilib If conﬁguration fails with this option speciﬁed, you can

still conﬁgure without it to get only application 64-bit support.

A.1.5 Compiling BLCR

Just type make:

% make

A.1.6 Testing your build (optional, but recommended)

As with many autotools-based packages, BLCR includes a check make target.

However, it cannot run the tests until the kernel modules are loaded (and will

tell you so if you forget). Since the not-yet-installed kernel modules are located

throughout the BLCR build directory, an ’insmod’ make target is provided to au-

tomate this task. If you are not running as root, make insmod will try to use the

sudo utility to perform the insmod operations as root. However, it is not necessary

(or recommended) to run the tests themselves as root. So, we recommend run the

following as a non-root user if sudo is installed and conﬁgured to allow your user:

% make insmod che ck

Which may prompt for a password, depending on how sudo is conﬁgured. If

the sudo utility is not installed (or not conﬁgured for your user), the following

steps are equivalent:

% s u

Pa ssw ord : [ t y p e r o o t pa ss w or d h e r e ]

# make insmod

# e x i t

% make c he ck

If the modules fail to load, then your kernel is not supported and you’ll need

to report this as a bug to the BLCR team, after ﬁrst checking the bug database to

ensure the problem isn’t already known (or even ﬁxed). Similarly, if one or more

tests fail, we’ll want to know that too. However, if the only failures are one or two

XtreemOS–Integrated Project 34/49

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 50 51

Nessun commento

CDA SC510 Guida Utente Pagina 36