1 #ifndef SPARC_TARGET_SYSCALL_H
2 #define SPARC_TARGET_SYSCALL_H
3 
4 #include "target_errno.h"
5 
6 struct target_pt_regs {
7 	abi_ulong psr;
8 	abi_ulong pc;
9 	abi_ulong npc;
10 	abi_ulong y;
11 	abi_ulong u_regs[16];
12 };
13 
14 #define UNAME_MACHINE "sparc"
15 #define UNAME_MINIMUM_RELEASE "2.6.32"
16 
17 /* SPARC kernels don't define this in their Kconfig, but they have the
18  * same ABI as if they did, implemented by sparc-specific code which fishes
19  * directly in the u_regs() struct for half the parameters in sparc_do_fork()
20  * and copy_thread().
21  */
22 #define TARGET_CLONE_BACKWARDS
23 #define TARGET_MINSIGSTKSZ      4096
24 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
25 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
26 
27 /* For SPARC SHMLBA is determined at runtime in the kernel, and
28  * libc has to runtime-detect it using the hwcaps (see glibc
29  * sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same
30  * logic here, though we know we're not the sparc v9 64-bit case).
31  */
32 #define TARGET_FORCE_SHMLBA
33 
34 static inline abi_ulong target_shmlba(CPUSPARCState *env)
35 {
36     if (!(env->def.features & CPU_FEATURE_FLUSH)) {
37         return 64 * 1024;
38     } else {
39         return 256 * 1024;
40     }
41 }
42 
43 #endif /* SPARC_TARGET_SYSCALL_H */
44