30 lines
808 B
C
30 lines
808 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_MMAN_H__
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#define __ASM_MMAN_H__
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#include <linux/fs.h>
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#include <uapi/asm/mman.h>
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/* PARISC cannot allow mdwe as it needs writable stacks */
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static inline bool arch_memory_deny_write_exec_supported(void)
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{
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return false;
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}
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#define arch_memory_deny_write_exec_supported arch_memory_deny_write_exec_supported
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static inline unsigned long arch_calc_vm_flag_bits(struct file *file, unsigned long flags)
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{
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/*
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* The stack on parisc grows upwards, so if userspace requests memory
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* for a stack, mark it with VM_GROWSUP so that the stack expansion in
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* the fault handler will work.
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*/
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if (flags & MAP_STACK)
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return VM_GROWSUP;
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return 0;
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}
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#define arch_calc_vm_flag_bits(file, flags) arch_calc_vm_flag_bits(file, flags)
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#endif /* __ASM_MMAN_H__ */
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