Move find_datadir to OS specific files.

This moves the win32 and POSIX versions of find_datadir() to OS
specific files, and removes some #ifdef clutter from vl.c

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Richard Henderson <rth@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 90 deletions

diff --git a/vl.c b/vl.c
index 807da7b972..484cc44ae5 100644
--- a/vl.c
+++ b/vl.c
@@ -1986,95 +1986,6 @@ static int balloon_parse(const char *arg)
     return -1;
 }
 
-#ifdef _WIN32
-/* Look for support files in the same directory as the executable.  */
-static char *find_datadir(const char *argv0)
-{
-    char *p;
-    char buf[MAX_PATH];
-    DWORD len;
-
-    len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
-    if (len == 0) {
-        return NULL;
-    }
-
-    buf[len] = 0;
-    p = buf + len - 1;
-    while (p != buf && *p != '\\')
-        p--;
-    *p = 0;
-    if (access(buf, R_OK) == 0) {
-        return qemu_strdup(buf);
-    }
-    return NULL;
-}
-#else /* !_WIN32 */
-
-/* Find a likely location for support files using the location of the binary.
-   For installed binaries this will be "$bindir/../share/qemu".  When
-   running from the build tree this will be "$bindir/../pc-bios".  */
-#define SHARE_SUFFIX "/share/qemu"
-#define BUILD_SUFFIX "/pc-bios"
-static char *find_datadir(const char *argv0)
-{
-    char *dir;
-    char *p = NULL;
-    char *res;
-    char buf[PATH_MAX];
-    size_t max_len;
-
-#if defined(__linux__)
-    {
-        int len;
-        len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
-        if (len > 0) {
-            buf[len] = 0;
-            p = buf;
-        }
-    }
-#elif defined(__FreeBSD__)
-    {
-        static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
-        size_t len = sizeof(buf) - 1;
-
-        *buf = '\0';
-        if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
-            *buf) {
-            buf[sizeof(buf) - 1] = '\0';
-            p = buf;
-        }
-    }
-#endif
-    /* If we don't have any way of figuring out the actual executable
-       location then try argv[0].  */
-    if (!p) {
-        p = realpath(argv0, buf);
-        if (!p) {
-            return NULL;
-        }
-    }
-    dir = dirname(p);
-    dir = dirname(dir);
-
-    max_len = strlen(dir) +
-        MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
-    res = qemu_mallocz(max_len);
-    snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
-    if (access(res, R_OK)) {
-        snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
-        if (access(res, R_OK)) {
-            qemu_free(res);
-            res = NULL;
-        }
-    }
-
-    return res;
-}
-#undef SHARE_SUFFIX
-#undef BUILD_SUFFIX
-#endif
-
 char *qemu_find_file(int type, const char *name)
 {
     int len;
@@ -3223,7 +3134,7 @@ int main(int argc, char **argv, char **envp)
     /* If no data_dir is specified then try to find it relative to the
        executable path.  */
     if (!data_dir) {
-        data_dir = find_datadir(argv[0]);
+        data_dir = os_find_datadir(argv[0]);
     }
     /* If all else fails use the install patch specified when building.  */
     if (!data_dir) {