fix ISE 12 support on 64bit

[usb-driver] / usb-driver.c

diff --git a/usb-driver.c b/usb-driver.c
index 264366bac6bcb075a1574b9bc9a41bdfe4c24aa1..55a74637991af424a683168c3b29d1bef882fd6f 100644 (file)
--- a/usb-driver.c
+++ b/usb-driver.c
@@ -41,6 +41,8 @@
 #include <bits/wordsize.h>
 #include <sys/ipc.h>
 #include <sys/sem.h>
+#include <syscall.h>
+#include <linux/personality.h>
 #include "usb-driver.h"
 #include "config.h"
 #include "xpcu.h"
@@ -655,20 +657,27 @@ int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
 }
 #endif
 
-#if __WORDSIZE == 32
-int uname (struct utsname *__name) {
-       static int (*func) (struct utsname*);
+/*
+ * Ugly hack for ISE 12. They don't seem to open /proc/modules with
+ * open() anymore...
+ * echo '_Z14isModuleLoadedPci' | c++filt
+ */
+long int _Z14isModuleLoadedPci(char *module_name, int i) {
+       DPRINTF("_Z14isModuleLoadedPci: Checking for module %s (%d)\n", module_name, i);
+
+       return 1;
+}
+
+static void __attribute__ ((constructor)) libusbdriver_init(void) {
+       #if __WORDSIZE == 32
+       struct utsname un;
        int ret;
 
-       if (!func)
-               func = (int (*) (struct utsname*)) dlsym(RTLD_NEXT, "uname");
-       
-       ret = (*func)(__name);
+       ret = uname(&un);
 
-       if (ret == 0 && (!strcmp(__name->machine, "x86_64"))) {
-               strcpy(__name->machine, "i686");
+       if (ret == 0 && (!strcmp(un.machine, "x86_64"))) {
+               DPRINTF("setting 32bit personality\n");
+               (long)syscall(SYS_personality, PER_LINUX32);
        }
-       
-       return ret;
+       #endif
 }
-#endif