Include/linux/personality.h
15939 #ifndef _PERSONALITY_H 15940 #define _PERSONALITY_H 15941 15942 #include <linux/linkage.h> 15943 #include <linux/ptrace.h> 15944 15945 15946 /* Flags for bug emulation. These occupy the top three 15947 bytes. */ 15948 #define STICKY_TIMEOUTS 0x4000000 15949 #define WHOLE_SECONDS 0x2000000 15950 #define ADDR_LIMIT_32BIT 0x0800000 15951 15952 /* Personality types. These go in the low byte. Avoid 15953 * using the top bit, it will conflict with error 15954 * returns. */ 15955 #define PER_MASK (0x00ff) 15956 #define PER_LINUX (0x0000) 15957 #define PER_LINUX_32BIT (0x0000 | ADDR_LIMIT_32BIT) 15958 #define PER_SVR4 (0x0001 | STICKY_TIMEOUTS) 15959 #define PER_SVR3 (0x0002 | STICKY_TIMEOUTS) 15960 #define PER_SCOSVR3 (0x0003 | STICKY_TIMEOUTS | \ 15961 WHOLE_SECONDS) 15962 #define PER_WYSEV386 (0x0004 | STICKY_TIMEOUTS) 15963 #define PER_ISCR4 (0x0005 | STICKY_TIMEOUTS) 15964 #define PER_BSD (0x0006) 15965 #define PER_XENIX (0x0007 | STICKY_TIMEOUTS) 15966 #define PER_LINUX32 (0x0008) 15967 15968 /* Prototype for an lcall7 syscall handler. */ 15969 typedef void (*lcall7_func)(struct pt_regs *); 15970 15971 15972 /* Description of an execution domain - personality range 15973 * supported, lcall7 syscall handler, start up / shut 15974 * down functions etc. N.B. The name and lcall7 handler 15975 * must be where they are since the offset of the handler 15976 * is hard coded in kernel/sys_call.S. */ 15977 struct exec_domain { 15978 const char *name; 15979 lcall7_func handler; 15980 unsigned char pers_low, pers_high; 15981 unsigned long * signal_map; 15982 unsigned long * signal_invmap; 15983 struct module * module; 15984 struct exec_domain *next; 15985 }; 15986 15987 extern struct exec_domain default_exec_domain; 15988 15989 extern struct exec_domain *lookup_exec_domain( 15990 unsigned long personality); 15991 extern int register_exec_domain(struct exec_domain *it); 15992 extern int unregister_exec_domain(struct exec_domain*it); 15993 asmlinkage int sys_personality( 15994 unsigned long personality); 15995 15996 #endif /* _PERSONALITY_H */
