Commit Graph

58 Commits

Author SHA1 Message Date
Daniel Henrique Barboza
2d9b8acf58 virpcimock.c: simplify getrealpath() usage
Previous patch had to add '/sys/kernel/' prefix in opendir() because
the path, which is being mocked, wasn't being considered due to
an 'if SYSFS_PCI_PREFIX' guarding the call to getrealpath().

In fact, all current getrealpath() callers are guarding it with a
conditional to ensure that the function will never be called with
a non-mocked path. In this case, an extra non-NULL verification is
needed for the 'newpath' string to use the variable - which is
counterintuitive, given that getrealpath() will always write the
'newpath' string in any non-error conditon.

However, simply removing the guard of all getrealpath() instances
causes an abort in init_env(). This happens because tests will
execute access() to non-mocked paths even before the
LIBVIRT_FAKE_ROOT_DIR variable is declared in the test files. We
don't need 'fakerootdir' to be created at this point though.

This patch does the following changes to simplify getrealpath()
usage:

- getrealpath() will now guard the init_env() call by checking if
both fakeroot isn't created and the required path is being mocked.
This ensures that we're not failing inside init_env() because
we're too early and LIBVIRT_FAKE_ROOT_DIR wasn't defined yet;

- remove all conditional guards to call getrealpath() from
access(), virMockStatRedirect(), open(), open_2(), opendir()
and virFileCanonicalizePath(). As a bonus, remove all ternary
conditionals with 'newpath';

- a new 'pathPrefixIsMocked()' helper to aggregate all the prefixes
we're mocking, making it easier to add/remove them. If a prefix
is added inside this function, we can be sure that all functions
are mocking them.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-09-09 16:44:24 +02:00
Shivaprasad G Bhat
944a35d7f0 tests: Add test case for QEMU pci-hostdev hotplug
This patch adds hostdev test cases in qemuhotplugtest.c.

Note: the small tweak inside virpcimock.c was needed because
the new tests added a code path in which virHostHasIOMMU()
(virutil.c) started being called, and the mocked '/sys/kernel/'
prefix that is mocked in virpcimock.c wasn't being considered
in the opendir() mock. An alternative to avoid these situations
in virpcimock.c is implemented in the next patch.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-09-09 16:44:24 +02:00
Shivaprasad G Bhat
5a9dc4a50c virpcimock: Mock the SRIOV Virtual functions
The softlink to physfn is the way to know if the device is
VF or not. So, the patch softlinks 'physfn' to the parent function.
The multifunction PCI devices dont have 'physfn' softlinks.

The patch adds few Virtual functions to the mock environment and
changes the existing VFIO test xmls using the VFs to use the newly
added VFs for their use case.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-09-09 16:44:24 +02:00
Daniel Henrique Barboza
16c9890383 virpcimock.c: mock /dev/vfio
This patch adds mock of the /dev/vfio path, needed for proper
implementation of the support for multifunction/multiple devices
per iommu groups.

To do that, the existing bind and unbind operations were adapted
to operate with the mocked filesystem as well.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-09-09 16:44:24 +02:00
Michal Privoznik
32dec83d35 virpcimock: Drop @driverActions enum
This enum was introduced to model how RHEL-7 kernel behaves - for
some reason going with the old way (via new_id + bind) fails but
using driver_override succeeds. Well, we don't need to care about
that anymore since we don't create new_id file.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-23 10:48:34 +02:00
Michal Privoznik
48e24ede39 virpcimock: Don't create new_id or remove_id files
Now that PCI attach/detach happens solely via driver_override
these two files are no longer needed.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-23 10:48:34 +02:00
Michal Privoznik
e8b8d96e2b virpcimock: Don't create "pci-stub" driver
Now that nothing supports "pci-stub" driver (aka KVM style of PCI
device assignment) there is no need for virpcimock to create it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-23 10:48:34 +02:00
Daniel P. Berrangé
5ee928624e tests: fix #ifdef indentation from previous commit
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-08-20 11:30:08 +01:00
Daniel P. Berrangé
c46ab0d48f tests: don't try to mock __open_2 on non-GLibc builds
Mocking of the __open_2 function was added in

  commit 459f071cac
  Author: Michal Privoznik <mprivozn@redhat.com>
  Date:   Thu Aug 15 16:37:17 2019 +0200

    virpcimock: Mock __open_2()

This function only exists in glibc, however, and the mocking code runs
on systems not using glibc, such as FreeBSD. Even Linux hosts might be
using a different libc impl, though we don't actively try to support
that.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-08-20 10:12:07 +01:00
Ján Tomko
ba3ed24635 tests: virpcimock: remove unused variable 'devid'
virpcimock.c:685:26: error: unused variable 'devid' [-Werror,-Wunused-variable]
    VIR_AUTOFREE(char *) devid = NULL;
                         ^

Fixes: 76b4229438

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2019-08-19 11:27:58 +02:00
Michal Privoznik
324b576c0c virpcimock: Create symlink in /sys/kernel/iommu_groups/N/devices dir
So far, we don't need to create anything under
/sys/kernel/iommu_groups/N/devices directory (which is symlinked
from /sys/bus/pci/devices/DDDD:BB:DD.F/iommu_group directory)
because virhostdevtest still tests the old KVM assignment and
thus has no notion of IOMMU groups. This will change in near
future though. And in order to discover devices belonging to the
same IOMMU group we need to do what kernel does - create symlinks
to devices.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 12:24:34 +02:00
Michal Privoznik
6a966aac9d virpcimock: Create PCI devices under /sys/devices/pci*
So far, we are creating devices directly under
/sys/bus/pci/devices/*. There is not much problem with it, but if
we really want to model kernel behaviour we need to create them
under /sys/devices/pciDDDD:BB and then only symlink them from the
old location.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 12:11:20 +02:00
Michal Privoznik
76b4229438 virpcimock: Store PCI address as ints not string
In upcoming patches we will need only some portions of the PCI
address. To construct that easily, it's better if the PCI address
of a device is stored as four integers rather than one string.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 12:08:28 +02:00
Michal Privoznik
af3ddc1369 virpcimock: Introduce and use pci_driver_get_path()
Have just one function to generate path to a PCI driver so that
when we change it in near future there's only few of the places
we need to fix.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 12:08:20 +02:00
Michal Privoznik
7f7bd6016e virpcimock: Introduce and use pci_device_get_path()
Have just one function to generate path to a PCI device so that
when we change it in near future there's only few of the places
we need to fix.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:50:18 +02:00
Michal Privoznik
ec60538c1b virpcimock: Create devices/ and drivers/ under /sys/bus/pci upfront
In near future, we will be creating devices under different
location and just symlink them under devices/. Just like real
kernel does. But for that we need the directories to exist.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:48:09 +02:00
Michal Privoznik
278f777019 virpcimock: Rename @fakesysfspcidir
We will need to create more directories and instead of
introducing bunch of new variables to hold their actual
paths, we can have one and reuse it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:32:31 +02:00
Michal Privoznik
2a0909484b virpcimock: Eliminate use of @fakesysfspcidir
The @fakesysfspcidir is derived from @fakerootdir. We don't need
two global variables that contain nearly the same content,
especially when we construct the actual path anyways.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:27:43 +02:00
Michal Privoznik
ea893afaf8 virpcimock: Use VIR_AUTOFREE()
It saves us couple of lines.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:18:08 +02:00
Michal Privoznik
caf6cc4fd2 virpcimock: Drop needless typecast
When creating a PCI device, the pciDevice structure contains @id
member which holds device address (DDDD.BB:DD.F) and is type of
'char *'. But the structure is initialized from a const char and
in fact we never modify or free the @id.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:16:52 +02:00
Michal Privoznik
84f9358b18 virpcimock: Create driver_override file in device dirs
Newer kernels (v3.16-rc1~29^2~6^4) have 'driver_override' file
which simplifies way of binding a PCI device to desired driver.
Libvirt has support for this for some time too (v2.3.0-rc1~236),
but not our virpcimock. So far we did not care because our code
is designed to deal with this situation. Except for one.
hypothetical case: binding a device to the vfio-pci driver can be
successful only via driver_override. Any attempt to bind a PCI
device to vfio-pci driver using old method (new_id + unbind +
bind) will fail because of b803b29c1a. While on vanilla kernel
I'm able to use the old method successfully, it's failing on RHEL
kernels (not sure why).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:14:58 +02:00
Michal Privoznik
038e6f069f virpcimock: Move actions checking one level up
The pci_driver_bind() and pci_driver_unbind() functions are
"internal implementation", meaning other parts of the code should
be able to call them and get the job done. Checking for actions
(PCI_ACTION_BIND and PCI_ACTION_UNBIND) should be done in
handlers (pci_driver_handle_bind() and
pci_driver_handle_unbind()). Surprisingly, the other two actions
(PCI_ACTION_NEW_ID and PCI_ACTION_REMOVE_ID) are checked already
at this level.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-08-17 11:05:30 +02:00
Peter Krempa
52dad8c9b0 tests: virpcimock: Always declare __open_2
In some cases e.g. with clang on fedora 30 __open2 isn't even declared
which results in the following build error:

/home/pipo/libvirt/tests/virpcimock.c:939:1: error: no previous prototype for function
      '__open_2' [-Werror,-Wmissing-prototypes]
__open_2(const char *path, int flags)

Add a separate declaration to appease the compiler.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-08-16 10:00:16 +02:00
Michal Privoznik
459f071cac virpcimock: Mock __open_2()
Hold on to your hat, this is going to be a wild ride. As nearly
nothing in glibc, nor open() is a real function. Just look into
bits/fcntl2.h and you'll see that open() is actually a thin
wrapper that calls either __open_alias() or __open_2(). Now,
before 801ebb5edb the open() done in
virPCIDeviceConfigOpenInternal() had a constant oflags (we were
opening the pci config with O_RDWR). And since we were not
passing any mode nor O_CREAT the wrapper decided to call
__open_alias() which was open() provided by our mock. So far so
good. But after the referenced commit, the oflags is no longer
compile time constant and therefore the wrapper calls __open_2()
which we don't mock and thus the real __open_2() from glibc was
called and thus we did try to open real path from host's /sys.
This of course fails with variety of errors.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-08-16 08:49:33 +02:00
Michal Privoznik
68e503ee70 virpcitest: Separate two functions properly
There is a missing empty line between two functions since its
introduction in v1.2.0-rc1~150.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2019-06-17 17:47:18 +02:00
Daniel P. Berrangé
ff376c6283 tests: fix mocking of stat() / lstat() functions
Quite a few of the tests have a need to mock the stat() / lstat()
functions and they are taking somewhat different & inconsistent
approaches none of which are actually fully correct. This is shown
by fact that 'make check' fails on 32-bit hosts. Investigation
revealed that the code was calling into the native C library impl,
not getting intercepted by our mocks.

The POSIX stat() function might resolve to any number of different
symbols in the C library.

The may be an additional stat64() function exposed by the headers
too.

On 64-bit hosts the stat & stat64 functions are identical, always
refering to the 64-bit ABI.

On 32-bit hosts they refer to the 32-bit & 64-bit ABIs respectively.

Libvirt uses _FILE_OFFSET_BITS=64 on 32-bit hosts, which causes the
C library to transparently rewrite stat() calls to be stat64() calls.
Libvirt will never see the 32-bit ABI from the traditional stat()
call. We cannot assume this rewriting is done using a macro. It might
be, but on GLibC it is done with a magic __asm__ statement to apply
the rewrite at link time instead of at preprocessing.

In GLibC there may be two additional functions exposed by the headers,
__xstat() and __xstat64(). When these exist, stat() and stat64() are
transparently rewritten to call __xstat() and __xstat64() respectively.
The former symbols will not actally exist in the library at all, only
the header. The leading "__" indicates the symbols are a private impl
detail of the C library that applications should not care about.
Unfortunately, because we are trying to mock replace the C library,
we need to know about this internal impl detail.

With all this in mind the list of functions we have to mock will depend
on several factors

 - If _FILE_OFFSET_BITS is set, then we are on a 32-bit host, and we
   only need to mock stat64 and __xstat64. The other stat / __xstat
   functions exist, but we'll never call them so they can be ignored
   for mocking.

 - If _FILE_OFFSET_BITS is not set, then we are on a 64-bit host and
   we should mock stat, stat64, __xstat & __xstat64. Either may be
   called by app code.

 - If __xstat & __xstat64 exist, then stat & stat64 will not exist
   as symbols in the library, so the latter should not be mocked.

The same all applies to lstat()

These rules are complex enough that we don't want to duplicate them
across every mock file, so this centralizes all the logic in a helper
file virmockstathelper.c that should be #included when needed. The
code merely need to provide a filename rewriting callback called
virMockStatRedirect(). Optionally VIR_MOCK_STAT_HOOK can be defined
as a macro if further processing is needed inline.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-04-03 11:31:38 +01:00
Nikolay Shirokovskiy
0eca80e606 conf: don't use "class" as name
Vim treats *.h files as cpp ones with respect to syntax highlighting.
Thus "class" in _virNodeDevCapPCIDev highlighted mistakenly.
This can be fixed by filetype detection code tunables but it
is more convinient to skip this tuning by every project member.

Let's just use "klass" as field name instead of _class or class
and add syntax rule.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-03-18 11:14:37 +03:00
Daniel P. Berrangé
600462834f Remove all Author(s): lines from source file headers
In many files there are header comments that contain an Author:
statement, supposedly reflecting who originally wrote the code.
In a large collaborative project like libvirt, any non-trivial
file will have been modified by a large number of different
contributors. IOW, the Author: comments are quickly out of date,
omitting people who have made significant contribitions.

In some places Author: lines have been added despite the person
merely being responsible for creating the file by moving existing
code out of another file. IOW, the Author: lines give an incorrect
record of authorship.

With this all in mind, the comments are useless as a means to identify
who to talk to about code in a particular file. Contributors will always
be better off using 'git log' and 'git blame' if they need to  find the
author of a particular bit of code.

This commit thus deletes all Author: comments from the source and adds
a rule to prevent them reappearing.

The Copyright headers are similarly misleading and inaccurate, however,
we cannot delete these as they have legal meaning, despite being largely
inaccurate. In addition only the copyright holder is permitted to change
their respective copyright statement.

Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-12-13 16:08:38 +00:00
Erik Skultety
5165ff0971 src: More cleanup of some system headers already contained in internal.h
All of the ones being removed are pulled in by internal.h. The only
exception is sanlock which expects the application to include <stdint.h>
before sanlock's headers, because sanlock prototypes use fixed width
int, but they don't include stdint.h themselves, so we have to leave
that one in place.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
2018-09-20 10:16:39 +02:00
Erik Skultety
9403b63102 internal: Move <stdio.h> include to internal.h
It doesn't really make sense for us to have stdlib.h and string.h but
not stdio.h in the internal.h header.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
2018-09-20 10:16:38 +02:00
Andrea Bolognani
b5d4652e07 tests: Build virpcimock on FreeBSD too
There are only a couple remaining issues preventing it from
working on FreeBSD. Let's fix them.

With the mocking in place, qemumemlocktest and qemuxml2xmltest
can finally succeed on FreeBSD.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-05-03 18:23:30 +02:00
Andrea Bolognani
530cecdb7b tests: Fix mode_t usage with va_arg()
Clang complains about it:

  error: second argument to 'va_arg' is of promotable type
  'mode_t' (aka 'unsigned short'); this va_arg has undefined
  behavior because arguments will be promoted to 'int'
  [-Werror,-Wvarargs]

    mode = va_arg(ap, mode_t);
                      ^~~~~~

Work around the issue by passing int to va_arg() and casting
its return value to mode_t afterwards.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-05-03 18:23:30 +02:00
Andrea Bolognani
3bfe72e3dd tests: Stop mocking canonicalize_file_name()
We're using virFileCanonicalizePath() everywhere now, so
mocking this function has become entirely pointless.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-05-03 18:23:30 +02:00
Andrea Bolognani
9190c37268 tests: Mock virFileCanonicalizePath()
We're going to need this later on.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-05-03 18:23:29 +02:00
Andrea Bolognani
3e7db8d3e8 Remove backslash alignment attempts
Right-aligning backslashes when defining macros or using complex
commands in Makefiles looks cute, but as soon as any changes is
required to the code you end up with either distractingly broken
alignment or unnecessarily big diffs where most of the changes
are just pushing all backslashes a few characters to one side.

Generated using

  $ git grep -El '[[:blank:]][[:blank:]]\\$' | \
    grep -E '*\.([chx]|am|mk)$$' | \
    while read f; do \
      sed -Ei 's/[[:blank:]]*[[:blank:]]\\$/ \\/g' "$f"; \
    done

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-11-03 13:24:12 +01:00
ZhiPeng Lu
3c3c3e3613 virpcimock: Fix memory leak in pci_driver_new
driverpath, allocated by virAsprintfQuiet, was not freed and leaked.

Signed-off-by: Zhipeng Lu <lu.zhipeng@zte.com.cn>
2017-07-16 17:06:45 -04:00
Andrea Bolognani
dd9b29dad8 tests: Mock IOMMU groups
Later on we're going to need access to information about IOMMU
groups for host devices. Implement the support in virpcimock,
and start using that mock library in a few QEMU test cases.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
2017-07-15 14:50:42 +02:00
Michal Privoznik
436397902e tests: Drop VIR_MOCK_CALL_STAT
It wasn't as great idea as I thought. Thing around stat() are
more complicated than that. Therefore we need to revert
86d1705a8a plus drop use of the macro as introduced in
later patches.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-05-20 17:16:21 +02:00
Michal Privoznik
86d1705a8a virmock.h: Introduce VIR_MOCK_CALL_STAT
There is some magic going on when it comes to stat() or lstat().
Basically, stat() can either be a regular function, an inline
function that calls __xstat(_STAT_VER, ...) or a macro that does
the same as the inline func. Don't ask why is that, just read the
documentation in sys/stat.h and make sure you have a bucket next
to you. Anyway, currently there will not be both stat and __xstat
symbols at the same time, as one of them gets overwritten to the
other one during compilation. But this is not true anymore once
we start chaining our mocking libraries. Therefore we need a
wrapper that calls desired function from glibc.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-05-14 09:25:56 +02:00
Michal Privoznik
57c484dbac virpcimock: Adapt to virmock.h
Instead of introducing our own wrapper for dlsym()
we can use the one provided by virmock.h.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-05-14 09:10:40 +02:00
Andrea Bolognani
d2939c0f4d tests: Use more specific names for variables
Instead of fakesysfsdir, which is very generic, use fakesysfspcidir and
fakesysfscgroupdir. This makes it explicit what part of the fake sysfs
filesystem they're referring to, and also leaves open the possibility of
handling files in two unrelated parts of the fake sysfs filesystem.

No functional changes.
2015-12-09 15:22:58 +01:00
Andrea Bolognani
46468c62ff tests: Rename LIBVIRT_FAKE_SYSFS_DIR to LIBVIRT_FAKE_ROOT_DIR
The old name is no longer accurate, since now we're using its value as
the root of the fake filesystem.

No functional changes.
2015-12-09 15:22:58 +01:00
Andrea Bolognani
f94398e72e tests: pcimock: Use the temporary directory as fake root
We might need to mock files living outside PCI_SYSFS_PREFIX later on,
so it's better to treat the temporary directory we are passed via
the environment as the root of the fake filesystem and create
PCI_SYSFS_PREFIX inside it.

The environment variable name will be changed to reflect the new use
we're making of it in a later commit.
2015-12-09 15:22:58 +01:00
Andrea Bolognani
b76d936670 tests: pcimock: Remove check for fakesysfsdir
init_env() will return right away if fakesysfsdir is already
initialized, so this check is redundant.
2015-12-09 15:22:58 +01:00
Daniel P. Berrange
3cfa19da22 Replace Pci with PCI throughout
Since it is an abbreviation, PCI should always be fully
capitalized or full lower case, never Pci.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-04-08 11:15:55 +01:00
Ján Tomko
2dcdb7f654 Indent top-level labels by one space in tests/ 2014-03-25 14:58:41 +01:00
Matthias Bolte
96f274a989 tests: Fix PCI test data filenames for Windows
Windows doesn't allow : in filenames.

Commit 21685c955e added files with a : in
their names. This broke git operations on Windows as git is not able to
create those files on clone or pull.

Replace : with - in the offending filenames and adapt the test case.
2014-01-25 12:53:11 +01:00
Jiri Denemark
b803b29c1a virpcimock: Add PCI driver which always fails
Such driver can be used to make sure PCI APIs fail properly.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2014-01-20 14:21:33 +01:00
Jiri Denemark
bbeadb820c virpcitest: More tests for device detach and reattach
Especially for devices that are not bound to any driver.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2014-01-20 14:14:19 +01:00
Jiri Denemark
508b566ec2 virpcimock: Mock /sys/bus/pci/drivers_probe
This file is used by PCI detach and reattach APIs to probe for a driver
that handles a specific device.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2014-01-20 13:58:04 +01:00