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target/xtensa: add linux-user support

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Import list of syscalls from the kernel source. Conditionalize code/data
that is only used with softmmu. Implement exception handlers. Implement
signal hander (only the core registers for now, no coprocessors or TIE).

Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2017-01-25 10:54:11 -08:00
parent bf9c3a5a96
commit ba7651fba5
22 changed files with 1705 additions and 44 deletions
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28
linux-user/xtensa/target_structs.h Normal file
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#ifndef XTENSA_TARGET_STRUCTS_T
#define XTENSA_TARGET_STRUCTS_T
struct target_ipc_perm {
abi_int __key; /* Key. */
abi_uint uid; /* Owner's user ID. */
abi_uint gid; /* Owner's group ID. */
abi_uint cuid; /* Creator's user ID. */
abi_uint cgid; /* Creator's group ID. */
abi_uint mode; /* Read/write permission. */
abi_ushort __seq; /* Sequence number. */
};
struct target_shmid_ds {
struct target_ipc_perm shm_perm; /* operation permission struct */
abi_int shm_segsz; /* size of segment in bytes */
abi_long shm_atime; /* time of last shmat() */
abi_long shm_dtime; /* time of last shmdt() */
abi_long shm_ctime; /* time of last change by shmctl() */
abi_ushort shm_cpid; /* pid of creator */
abi_ushort shm_lpid; /* pid of last shmop */
abi_ushort shm_nattch; /* number of current attaches */
abi_ushort shm_unused; /* compatibility */
abi_ulong __unused2;
abi_ulong __unused3;
};
#endif