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add or1k (OpenRISC 1000) architecture port

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With the exception of a fenv implementation, the port is fully featured.
The port has been tested in or1ksim, the golden reference functional
simulator for OpenRISC 1000.
It passes all libc-test tests (except the math tests that
requires a fenv implementation).

The port assumes an or1k implementation that has support for
atomic instructions (l.lwa/l.swa).

Although it passes all the libc-test tests, the port is still
in an experimental state, and has yet experienced very little
'real-world' use.
This commit is contained in:
Stefan Kristiansson 2014-07-17 22:09:10 +03:00 • committed by Rich Felker
commit 200d15479c
46 changed files with 1982 additions and 1 deletions
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27
arch/or1k/bits/shm.h Normal file
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#define SHMLBA 4096
struct shmid_ds {
struct ipc_perm shm_perm;
size_t shm_segsz;
time_t shm_atime;
int __unused1;
time_t shm_dtime;
int __unused2;
time_t shm_ctime;
int __unused3;
pid_t shm_cpid;
pid_t shm_lpid;
unsigned long shm_nattch;
unsigned long __pad1;
unsigned long __pad2;
};
struct shminfo {
unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
};
struct shm_info {
int __used_ids;
unsigned long shm_tot, shm_rss, shm_swp;
unsigned long __swap_attempts, __swap_successes;
};