Don't overload uname but set personality in library constructor

This fixes planAhead crashing on startup

diff --git a/usb-driver.c b/usb-driver.c
index 6a7df90d44f052210d5c54b970131867b92d29c5..44a280b1e94704f48a30f7e1eb34e64e9a5fdf8e 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"
@@ -655,24 +657,6 @@ int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
 }
 #endif
 
-#if __WORDSIZE == 32
-int uname (struct utsname *__name) {
-       static int (*func) (struct utsname*);
-       int ret;
-
-       if (!func)
-               func = (int (*) (struct utsname*)) dlsym(RTLD_NEXT, "uname");
-       
-       ret = (*func)(__name);
-
-       if (ret == 0 && (!strcmp(__name->machine, "x86_64"))) {
-               strcpy(__name->machine, "i686");
-       }
-       
-       return ret;
-}
-#endif
-
 /*
  * Ugly hack for ISE 12. They don't seem to open /proc/modules with
  * open() anymore...
@@ -683,3 +667,17 @@ int _Z14isModuleLoadedPci(char *module_name, int i) {
 
        return 1;
 }
+
+static void __attribute__ ((constructor)) libusbdriver_init(void) {
+       #if __WORDSIZE == 32
+       struct utsname un;
+       int ret;
+
+       ret = uname(&un);
+
+       if (ret == 0 && (!strcmp(un.machine, "x86_64"))) {
+               DPRINTF("setting 32bit personality\n");
+               (long)syscall(SYS_personality, PER_LINUX32);
+       }
+       #endif
+}