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ldt.h
Package: linux-2.4.20.tar.gz [view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 1k
Category:
Linux-Unix program
Development Platform:
Unix_Linux
- /*
- * ldt.h
- *
- * Definitions of structures used with the modify_ldt system call.
- */
- #ifndef _LINUX_LDT_H
- #define _LINUX_LDT_H
- /* Maximum number of LDT entries supported. */
- #define LDT_ENTRIES 8192
- /* The size of each LDT entry. */
- #define LDT_ENTRY_SIZE 8
- #ifndef __ASSEMBLY__
- /* Note on 64bit base and limit is ignored and you cannot set
- DS/ES/CS not to the default values if you still want to do syscalls. This
- call is more for 32bit mode therefore. */
- struct modify_ldt_ldt_s {
- unsigned int entry_number;
- unsigned int base_addr;
- unsigned int limit;
- unsigned int seg_32bit:1;
- unsigned int contents:2;
- unsigned int read_exec_only:1;
- unsigned int limit_in_pages:1;
- unsigned int seg_not_present:1;
- unsigned int useable:1;
- unsigned int lm:1;
- };
- #define MODIFY_LDT_CONTENTS_DATA 0
- #define MODIFY_LDT_CONTENTS_STACK 1
- #define MODIFY_LDT_CONTENTS_CODE 2
- #endif /* !__ASSEMBLY__ */
- #endif
