#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <bits/wordsize.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <sys/mman.h>
+#include <syscall.h>
+#include <linux/personality.h>
#include "usb-driver.h"
#include "config.h"
#include "xpcu.h"
#define NO_WINDRVR 1
-void hexdump(unsigned char *buf, int len) {
- int i;
+void hexdump(unsigned char *buf, int len, char *prefix) {
+ int i = 0;
- for(i=0; i<len; i++) {
+ fprintf(stderr, "%s %03x: ", prefix, i);
+ for(i = 0; i<len; i++) {
fprintf(stderr,"%02x ", buf[i]);
- if ((i % 16) == 15)
- fprintf(stderr,"\n");
+ if ((i % 16) == 7)
+ fprintf(stderr," ");
+ if (((i % 16) == 15) && ((i+1) < len))
+ fprintf(stderr,"\n%s %03x: ", prefix, i+1);
}
fprintf(stderr,"\n");
}
#ifndef NO_WINDRVR
ret = (*ioctl_func) (fd, request, wdioctl);
#else
+ cr->hCard = 0;
pport = config_get((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
if (!pport)
ut->dwUniqueID, ut->dwPipeNum, ut->fRead,
ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
if (ut->dwPipeNum == 0) {
- DPRINTF("-> setup packet: ");
- hexdump(ut->SetupPacket, 8);
+ DPRINTF("-> setup packet:");
+ hexdump(ut->SetupPacket, 8, "");
}
if (!ut->fRead && ut->dwBufferSize)
{
- hexdump(ut->pBuffer, ut->dwBufferSize);
+ hexdump(ut->pBuffer, ut->dwBufferSize, "->");
}
#endif
DPRINTF("Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
if (ut->fRead && ut->dwBytesTransferred)
{
- DPRINTF("<- Read: ");
- hexdump(ut->pBuffer, ut->dwBytesTransferred);
+ hexdump(ut->pBuffer, ut->dwBytesTransferred, "<-");
}
#endif
}
if (!strcmp(path, "/proc/modules")) {
DPRINTF("opening /proc/modules\n");
+ if (!ret && errno == ENOENT) {
+ /* Hmm.. there appears to be no /proc/modules file
+ * fake it then */
+ ret = (*func)("/dev/null", mode);
+ DPRINTF("No /proc/modules -- faking\n");
+ }
#ifdef NO_WINDRVR
modulesfp = ret;
modules_read = 0;
}
}
-#if __WORDSIZE == 32
-int uname (struct utsname *__name) {
- static int (*func) (struct utsname*);
- int ret;
+#if 0
+/* USB cable sharing needs to overload semop, TODO! */
+int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
+ static int (*func) (int, struct sembuf*, size_t) = NULL;
+ int i;
if (!func)
- func = (int (*) (struct utsname*)) dlsym(RTLD_NEXT, "uname");
+ func = (int (*) (int, struct sembuf*, size_t)) dlsym(RTLD_NEXT, "semop");
- ret = (*func)(__name);
+ fprintf(stderr,"semop: semid: 0x%X, elements: %d\n", __semid, __nsops);
+ for (i = 0; i < __nsops; i++) {
+ fprintf(stderr, " num: %u, op: %d, flg: %d\n", __sops[i].sem_num, __sops[i].sem_op, __sops[i].sem_flg);
+ if (__sops[i].sem_op < 0) {
+ fprintf(stderr, "SEMAPHORE LOCK\n");
+ } else {
+ fprintf(stderr, "SEMAPHORE UNLOCK\n");
+ }
+ }
+
+ return (*func)(__semid, __sops, __nsops);
+}
+#endif
+
+/*
+ * Ugly hack for ISE 12. Preload doesn't seem to work correctly for
+ * libImpactComm.so. Even though the file is still read with fopen(),
+ * the version from libc is used and not the one from this file.
+ * Replace the function calling fopen() instead...
+ * 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;
+}
+
+void cpr_segv_handler(int sig, siginfo_t *info, void *context) {
+ void *newmem;
- if (ret == 0 && (!strcmp(__name->machine, "x86_64"))) {
- strcpy(__name->machine, "i686");
+ DPRINTF("SEGV at %p, mapping memory\n", info->si_addr);
+ errno = 0;
+ newmem = mmap(info->si_addr, 1, PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0);
+ if (newmem != info->si_addr) {
+ perror("libusb-driver.so: Can't map memory, crashing now");
+ exit(EXIT_FAILURE);
}
-
+}
+
+/* XilCommNS::CPortResources::Instance() */
+void* _ZN9XilCommNS14CPortResources8InstanceEv() {
+ static void* (*func) (void) = NULL;
+ char *filename = NULL;
+ void *ret;
+ int i;
+
+ if (!func) {
+ struct sigaction act, oldact;
+ int sighand_installed = 0;
+
+ func = (void* (*) (void)) dlsym(RTLD_NEXT, "_ZN9XilCommNS14CPortResources8InstanceEv");
+
+ DPRINTF("Installing signal-handler for SIGSEGV\n");
+ bzero(&act, sizeof(struct sigaction));
+ act.sa_sigaction = cpr_segv_handler;
+ act.sa_flags = SA_SIGINFO;
+ if (sigaction(SIGSEGV, &act, &oldact) == 0) {
+ sighand_installed = 1;
+ }
+
+ DPRINTF("Searching for filename starting at %p\n", func);
+ for(i = 0; i < 32768; i++) {
+ if (!strcmp(((char*)func)+i, "/proc/sys/dev/parport/%s/base-addr")) {
+ filename = ((char*)func)+i;
+ DPRINTF("Filename found at offset %p\n", (void*)(filename - ((char*)func)));
+ break;
+ }
+ }
+ if (sighand_installed) {
+ DPRINTF("Restoring signal-handler for SIGSEGV\n");
+ sigaction(SIGSEGV, &oldact, NULL);
+ }
+ if (!filename)
+ fprintf(stderr, "libusb-driver.so: Can't find memory to patch, parallel cables will probably not work!\n");
+ }
+
+ if (filename) {
+ long pagesize;
+ size_t protectlen;
+ void *start;
+ int len = strlen(filename) + 1;
+ int ret;
+
+ pagesize = sysconf(_SC_PAGE_SIZE);
+ DPRINTF("You have %lu bytes sized pages!\n", pagesize);
+
+ start = (void*)((long)filename & (~(pagesize-1)));
+
+ protectlen = pagesize;
+ if ((long)(filename + len) > (long)(start + protectlen))
+ protectlen += pagesize;
+
+ DPRINTF("Unprotecting %zd bytes starting at %p\n", protectlen, start);
+ ret = mprotect(start, protectlen, PROT_READ|PROT_WRITE);
+ if (ret == -1)
+ perror("mprotect");
+
+ DPRINTF("Replacing %s with /dev/zero\n", filename);
+ strcpy(filename, "/dev/zero");
+
+ DPRINTF("Reprotecting %zd bytes starting at %p\n", protectlen, start);
+ ret = mprotect(start, protectlen, PROT_READ|PROT_EXEC);
+ if (ret == -1)
+ perror("mprotect");
+ }
+
+ DPRINTF("-> XilCommNS::CPortResources::Instance()\n");
+
+ ret = func();
+
+ DPRINTF("<- XilCommNS::CPortResources::Instance()\n");
+
return ret;
}
-#endif
+
+static void __attribute__ ((constructor)) libusbdriver_init(void) {
+ int i;
+ char buf[256];
+ char buf2[256];
+
+ for (i = 0; i < 4; i++) {
+ snprintf(buf, sizeof(buf), "XIL_IMPACT_ENV_LPT%d_BASE_ADDRESS", i+1);
+ snprintf(buf2, sizeof(buf2), "%x", 0x10*i);
+ setenv(buf, buf2, 1);
+ snprintf(buf, sizeof(buf), "XIL_IMPACT_ENV_LPT%d_ECP_ADDRESS", i+1);
+ snprintf(buf2, sizeof(buf2), "%x", (0x10*i)+0x400);
+ setenv(buf, buf2, 1);
+ }
+
+ setenv("XIL_IMPACT_USE_LIBUSB", "0", 1);
+ setenv("XIL_IMPACT_USE_WINDRIVER", "1", 1);
+
+ #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
+}
projects / usb-driver / blobdiff