2f23eec6bd
There are only a few differences in sparc32 vs sparc64. This fixes target_shmlba for sparc32plus, which is v9. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
#ifndef SPARC_TARGET_SYSCALL_H
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#define SPARC_TARGET_SYSCALL_H
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#include "target_errno.h"
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#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
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struct target_pt_regs {
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abi_ulong u_regs[16];
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abi_ulong tstate;
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abi_ulong pc;
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abi_ulong npc;
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uint32_t y;
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uint32_t magic;
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};
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#else
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struct target_pt_regs {
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abi_ulong psr;
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abi_ulong pc;
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abi_ulong npc;
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abi_ulong y;
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abi_ulong u_regs[16];
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};
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#endif
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#ifdef TARGET_SPARC64
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# define UNAME_MACHINE "sparc64"
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#else
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# define UNAME_MACHINE "sparc"
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#endif
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#define UNAME_MINIMUM_RELEASE "2.6.32"
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/*
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* SPARC kernels don't define this in their Kconfig, but they have the
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* same ABI as if they did, implemented by sparc-specific code which fishes
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* directly in the u_regs() struct for half the parameters in sparc_do_fork()
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* and copy_thread().
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*/
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#define TARGET_CLONE_BACKWARDS
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#define TARGET_MINSIGSTKSZ 4096
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#define TARGET_MCL_CURRENT 0x2000
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#define TARGET_MCL_FUTURE 0x4000
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#define TARGET_MCL_ONFAULT 0x8000
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/*
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* For SPARC SHMLBA is determined at runtime in the kernel, and
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* libc has to runtime-detect it using the hwcaps.
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* See glibc sysdeps/unix/sysv/linux/sparc/getshmlba.
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*/
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#define TARGET_FORCE_SHMLBA
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static inline abi_ulong target_shmlba(CPUSPARCState *env)
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{
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#ifdef TARGET_SPARC64
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return MAX(TARGET_PAGE_SIZE, 16 * 1024);
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#else
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if (!(env->def.features & CPU_FEATURE_FLUSH)) {
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return 64 * 1024;
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} else {
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return 256 * 1024;
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}
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#endif
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}
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#endif /* SPARC_TARGET_SYSCALL_H */
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