void linux_mmap_pgoff_return(CPUState *cpu,target_ulong pc,uint32_t addr,uint32_t len,uint32_t prot,uint32_t flags,uint32_t fd,uint32_t pgoff) {
CPUArchState *env = (CPUArchState*)cpu->env_ptr;
target_ulong asid = panda_current_asid(cpu);
if (running_procs.count(asid) == 0) {
//printf ("linux_mmap_pgoff_enter for asid=0x%x fd=%d -- dont know about that asid. discarding \n", (unsigned int) asid, (int) fd);
return;
}
if ((int32_t) fd == -1){
//printf ("linux_mmap_pgoff_enter for asid=0x%x fd=%d flags=%x -- not valid fd . . . \n", (unsigned int) asid, (int) fd, flags);
return;
}
OsiProc proc = running_procs[asid];
char *filename = osi_linux_fd_to_filename(cpu, &proc, fd);
// gets us offset into the file. could be useful
//uint64_t pos = osi_linux_fd_to_pos(env, &proc, fd);
// if a filename exists and permission is executable
// TODO: fix this magic constant of 0x04 for PROT_EXEC
if (filename != NULL && ((prot & 0x04) == 0x04)) {
if (debug) {
printf ("[loaded] linux_mmap_pgoff(fd=%d filename=[%s] "
"len=%d prot=%x flags=%x "
"pgoff=%d)=" TARGET_FMT_lx "\n", (int) fd,
filename, len, prot, flags, pgoff, env->regs[R_EAX]);
}
PPP_RUN_CB(on_library_load, cpu, pc, filename, env->regs[R_EAX], len)
} else if ((prot & 0x04) == 0x04) {
void linux_pread_enter(CPUState *cpu, target_ulong pc,
uint32_t fd, uint32_t buf, uint32_t count, uint64_t pos) {
target_ulong asid = panda_current_asid(cpu);
if (running_procs.count(asid) == 0) {
if (debug) printf ("linux_read_enter for asid=0x%x fd=%d -- dont know about that asid. discarding \n", (unsigned int) asid, (int) fd);
return;
}
char *filename;
if (taint_stdin) {
filename = stdin_filename;
pos = 0;
}
else {
OsiProc& proc = running_procs[asid];
filename = osi_linux_fd_to_filename(cpu, &proc, fd);
if (pos == (uint64_t)-1) {
pos = osi_linux_fd_to_pos(cpu, &proc, fd);
}
if (filename==NULL) {
if (debug)
printf ("linux_read_enter for asid=0x%x pid=%d cmd=[%s] fd=%d -- that asid is known but resolving fd failed. discarding\n",
(unsigned int) asid, (int) proc.pid, proc.name, (int) fd);
return;
}
if (debug) printf ("linux_read_enter for asid==0x%x fd=%d filename=[%s] count=%d pos=%u\n", (unsigned int) asid, (int) fd, filename, count, (unsigned int) pos);
}
read_enter(cpu, pc, filename, pos, buf, count);
}