33 lines
802 B
C
33 lines
802 B
C
/*
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* ldt.h
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*
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* Definitions of structures used with the modify_ldt system call.
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*/
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#ifndef _LINUX_LDT_H
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#define _LINUX_LDT_H
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/* Maximum number of LDT entries supported. */
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#define LDT_ENTRIES 8192
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/* The size of each LDT entry. */
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#define LDT_ENTRY_SIZE 8
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struct modify_ldt_ldt_s {
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unsigned int entry_number;
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unsigned long base_addr;
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unsigned int limit;
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unsigned int seg_32bit:1;
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unsigned int contents:2;
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unsigned int read_exec_only:1;
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unsigned int limit_in_pages:1;
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};
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#define MODIFY_LDT_CONTENTS_DATA 0
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#define MODIFY_LDT_CONTENTS_STACK 1
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#define MODIFY_LDT_CONTENTS_CODE 2
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extern int get_ldt(void *buffer);
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extern int set_ldt_entry(int entry, unsigned long base, unsigned int limit,
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int seg_32bit_flag, int contents, int read_only_flag,
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int limit_in_pages_flag);
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#endif
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