[libvirt] [PATCH v2 8/8] tests: Build virpcimock on non-Linux

[Andrea Bolognani]

There are only a couple issues preventing it from working on
other platform such as FreeBSD. Let's fix them.

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

This commit is best viewed with 'git show -w'.

Signed-off-by: Andrea Bolognani <abologna at redhat.com>
---
 tests/virpcimock.c | 63 +++++++++++++++++++++++++++++++-----------------------
 1 file changed, 36 insertions(+), 27 deletions(-)

diff --git a/tests/virpcimock.c b/tests/virpcimock.c
index 915327e91e..4f73ccbc3c 100644
--- a/tests/virpcimock.c
+++ b/tests/virpcimock.c
@@ -20,19 +20,18 @@
 
 #include <config.h>
 
-#ifdef __linux__
-# include "virmock.h"
-# include <stdio.h>
-# include <stdlib.h>
-# include <unistd.h>
-# include <fcntl.h>
-# include <sys/stat.h>
-# include <stdarg.h>
-# include <dirent.h>
-# include "viralloc.h"
-# include "virstring.h"
-# include "virfile.h"
-# include "dirname.h"
+#include "virmock.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <stdarg.h>
+#include <dirent.h>
+#include "viralloc.h"
+#include "virstring.h"
+#include "virfile.h"
+#include "dirname.h"
 
 static int (*real_access)(const char *path, int mode);
 static int (*real_lstat)(const char *path, struct stat *sb);
@@ -51,20 +50,20 @@ static char *(*real_realpath)(const char *path, char *resolved);
 char *fakerootdir;
 char *fakesysfspcidir;
 
-# define SYSFS_PCI_PREFIX "/sys/bus/pci/"
+#define SYSFS_PCI_PREFIX "/sys/bus/pci/"
 
-# define STDERR(...) \
+#define STDERR(...) \
     fprintf(stderr, "%s %zu: ", __FUNCTION__, (size_t) __LINE__); \
     fprintf(stderr, __VA_ARGS__); \
     fprintf(stderr, "\n"); \
 
-# define ABORT(...) \
+#define ABORT(...) \
     do { \
         STDERR(__VA_ARGS__); \
         abort(); \
     } while (0)
 
-# define ABORT_OOM() \
+#define ABORT_OOM() \
     ABORT("Out of memory")
 /*
  * The plan:
@@ -341,6 +340,7 @@ pci_device_new_from_stub(const struct pciDevice *data)
     char *configSrc;
     char tmp[256];
     struct stat sb;
+    bool configSrcExists = false;
 
     if (VIR_STRDUP_QUIET(id, data->id) < 0)
         ABORT_OOM();
@@ -368,10 +368,18 @@ pci_device_new_from_stub(const struct pciDevice *data)
     if (virFileMakePath(devpath) < 0)
         ABORT("Unable to create: %s", devpath);
 
+    if (real_stat && real_stat(configSrc, &sb) == 0)
+        configSrcExists = true;
+
+#ifdef HAVE___XSTAT
+    if (!configSrcExists &&
+        real___xstat && real___xstat(_STAT_VER, configSrc, &sb) == 0)
+        configSrcExists = true;
+#endif
+
     /* If there is a config file for the device within virpcitestdata dir,
      * symlink it. Otherwise create a dummy config file. */
-    if ((real_stat && real_stat(configSrc, &sb) == 0) ||
-        (real___xstat && real___xstat(_STAT_VER, configSrc, &sb) == 0)) {
+    if (configSrcExists) {
         /* On success, copy @configSrc into the destination (a copy,
          * rather than a symlink, is required since we write into the
          * file, and parallel VPATH builds must not stomp on the
@@ -822,11 +830,11 @@ init_syms(void)
      * Ask for a versioned symbol to make sure we get a working realpath()
      * on Linux; other operating systems such as FreeBSD don't suffer from
      * the same limitation and can rely on the default dlsym() behavior */
-# ifdef __linux__
+#ifdef __linux__
     VIR_MOCK_REAL_INIT_VERSIONED(realpath, "GLIBC_2.3");
-# else
+#else
     VIR_MOCK_REAL_INIT(realpath);
-# endif
+#endif
 }
 
 static void
@@ -847,7 +855,7 @@ init_env(void)
 
     make_file(fakesysfspcidir, "drivers_probe", NULL, -1);
 
-# define MAKE_PCI_DRIVER(name, ...) \
+#define MAKE_PCI_DRIVER(name, ...) \
     pci_driver_new(name, 0, __VA_ARGS__, -1, -1)
 
     MAKE_PCI_DRIVER("iwlwifi", 0x8086, 0x0044);
@@ -855,7 +863,7 @@ init_env(void)
     MAKE_PCI_DRIVER("pci-stub", -1, -1);
     pci_driver_new("vfio-pci", PCI_ACTION_BIND, -1, -1);
 
-# define MAKE_PCI_DEVICE(Id, Vendor, Device, ...) \
+#define MAKE_PCI_DEVICE(Id, Vendor, Device, ...) \
     do { \
         struct pciDevice dev = {.id = (char *)Id, .vendor = Vendor, \
                                 .device = Device, __VA_ARGS__}; \
@@ -904,6 +912,7 @@ access(const char *path, int mode)
     return ret;
 }
 
+#ifdef HAVE___LXSTAT
 int
 __lxstat(int ver, const char *path, struct stat *sb)
 {
@@ -922,6 +931,7 @@ __lxstat(int ver, const char *path, struct stat *sb)
     }
     return ret;
 }
+#endif /* HAVE___LXSTAT */
 
 int
 lstat(const char *path, struct stat *sb)
@@ -942,6 +952,7 @@ lstat(const char *path, struct stat *sb)
     return ret;
 }
 
+#ifdef HAVE___XSTAT
 int
 __xstat(int ver, const char *path, struct stat *sb)
 {
@@ -960,6 +971,7 @@ __xstat(int ver, const char *path, struct stat *sb)
     }
     return ret;
 }
+#endif /* HAVE___XSTAT */
 
 int
 stat(const char *path, struct stat *sb)
@@ -1059,6 +1071,3 @@ realpath(const char *path, char *resolved)
     }
     return ret;
 }
-#else
-/* Nothing to override on non-__linux__ platforms */
-#endif
-- 
2.14.3