1 #ifndef SPARC_TARGET_SYSCALL_H
2 #define SPARC_TARGET_SYSCALL_H
3 
4 struct target_pt_regs {
5 	abi_ulong psr;
6 	abi_ulong pc;
7 	abi_ulong npc;
8 	abi_ulong y;
9 	abi_ulong u_regs[16];
10 };
11 
12 #define UNAME_MACHINE "sun4"
13 #define UNAME_MINIMUM_RELEASE "2.6.32"
14 
15 /* SPARC kernels don't define this in their Kconfig, but they have the
16  * same ABI as if they did, implemented by sparc-specific code which fishes
17  * directly in the u_regs() struct for half the parameters in sparc_do_fork()
18  * and copy_thread().
19  */
20 #define TARGET_CLONE_BACKWARDS
21 #define TARGET_MINSIGSTKSZ      4096
22 #define TARGET_MLOCKALL_MCL_CURRENT 0x2000
23 #define TARGET_MLOCKALL_MCL_FUTURE  0x4000
24 
25 /* For SPARC SHMLBA is determined at runtime in the kernel, and
26  * libc has to runtime-detect it using the hwcaps (see glibc
27  * sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same
28  * logic here, though we know we're not the sparc v9 64-bit case).
29  */
30 #define TARGET_FORCE_SHMLBA
31 
32 static inline abi_ulong target_shmlba(CPUSPARCState *env)
33 {
34     if (!(env->def.features & CPU_FEATURE_FLUSH)) {
35         return 64 * 1024;
36     } else {
37         return 256 * 1024;
38     }
39 }
40 
41 #endif /* SPARC_TARGET_SYSCALL_H */
42