jackcartersmith/xilinx-usb-driver
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Dynamically search for /proc/sys/dev/parport/%s/base-addr

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This commit is contained in:
Michael Gernoth 2010-05-24 15:12:14 +02:00
parent a90dd20702
commit 6b3a171567
1 changed files with 11 additions and 14 deletions
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25
usb-driver.c
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@ -677,25 +677,22 @@ long int _Z14isModuleLoadedPci(char *module_name, int i) {
/* XilCommNS::CPortResources::Instance() */
void* _ZN9XilCommNS14CPortResources8InstanceEv() {
static void* (*func) (void) = NULL;
static char *NetString = NULL;
static char *NetString2 = NULL;
char *filename = NULL;
void *ret;
int i;
if (!func)
if (!func) {
func = (void* (*) (void)) dlsym(RTLD_NEXT, "_ZN9XilCommNS14CPortResources8InstanceEv");
if (!NetString)
NetString = (char*)dlsym(RTLD_NEXT, "_ZTSN9XilCommNS9NetStringE");
if (!NetString2)
NetString2 = (char*)dlsym(RTLD_NEXT, "_ZTIN9XilCommNS9NetStringE");
if (NetString && (!strcmp((char*)(NetString+0xb0), "/proc/sys/dev/parport/%s/base-addr")))
filename = (char*)(NetString+0xb0);
if (NetString2 && (!strcmp((char*)(NetString2+0xa4), "/proc/sys/dev/parport/%s/base-addr")))
filename = (char*)(NetString2+0xa4);
DPRINTF("Searching for filename starting at %p\n", func);
for(i = 0; i < 16384; 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 (filename) {
long pagesize;