sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

sim: fix function for emulating dup()

Browse source 
The function was using the host fd to obtain the fd object from the simulated
process.
This commit is contained in:
Nilay Vaish 2015-04-13 17:33:57 -05:00
parent c3268f8820
commit b26fef8466
1 changed files with 5 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/sim/syscall_emul.cc
View file

@ -594,13 +594,14 @@ SyscallReturn
dupFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc)
{
int index = 0;
int fd = process->sim_fd(process->getSyscallArg(tc, index));
if (fd < 0)
int tgt_fd = process->getSyscallArg(tc, index);
int sim_fd = process->sim_fd(tgt_fd);
if (sim_fd < 0)
return -EBADF;
Process::FdMap *fdo = process->sim_fd_obj(fd);
Process::FdMap *fdo = process->sim_fd_obj(tgt_fd);
int result = dup(fd);
int result = dup(sim_fd);
return (result == -1) ? -errno :
process->alloc_fd(result, fdo->filename, fdo->flags, fdo->mode, false);
}