diff options
author | Nilay Vaish <nilay@cs.wisc.edu> | 2015-04-13 17:33:57 -0500 |
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committer | Nilay Vaish <nilay@cs.wisc.edu> | 2015-04-13 17:33:57 -0500 |
commit | b26fef8466ce0ddf4bd0695e09538117e16cf7d8 (patch) | |
tree | 56ab9023d2c4d47629f6fcc363a767fdba33fd23 /src | |
parent | c3268f882029c7501867540ccf04db054fdff084 (diff) | |
download | gem5-b26fef8466ce0ddf4bd0695e09538117e16cf7d8.tar.xz |
sim: fix function for emulating dup()
The function was using the host fd to obtain the fd object from the simulated
process.
Diffstat (limited to 'src')
-rw-r--r-- | src/sim/syscall_emul.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index bf7efe210..8f3d08cd7 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -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); } |