I am going to rollback this change. I could not find any way for
implementing getdents() using readdir() or other similar C functions.
All these functions require a DIR* where as getdents() provides a file
descriptor. While it is possible to obtain a DIR * from the fd, closing
the DIR* would close the fd as well, which means that the application
cannot use the fd any longer.
--
Nilay
On Tue, 21 Oct 2014, Mitch Hayenga via gem5-dev wrote:
changeset: 10484:6709bbcf564d
user: Michael Adler <[email protected]>
date: Mon Oct 20 16:44:53 2014 -0500
summary: sim: implement getdents/getdents64 in user mode
Errors:
build/ARM/sim/syscall_emul.cc:881:30: error: use of undeclared identifier
'SYS_getdents'
int bytes_read = syscall(SYS_getdents, fd, bufArg.bufferPtr(), nbytes);
^
build/ARM/sim/syscall_emul.cc:899:30: error: use of undeclared identifier
'SYS_getdents64'
int bytes_read = syscall(SYS_getdents64, fd, bufArg.bufferPtr(),
nbytes);
It looks like this recent changeset for syscall emulation directly makes a
syscall to SYS_getdents. Which seemingly does not exist on mac OS X.
From the getdents manpage:
"This is not the function you are interested in. Look at readdir(3) for
the POSIX conforming C library interface."
- Mitch
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