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      1 #ifndef _LINUX_PRCTL_H
      2 #define _LINUX_PRCTL_H
      3 
      4 /* Values to pass as first argument to prctl() */
      5 
      6 #define PR_SET_PDEATHSIG  1  /* Second arg is a signal */
      7 #define PR_GET_PDEATHSIG  2  /* Second arg is a ptr to return the signal */
      8 
      9 /* Get/set current->mm->dumpable */
     10 #define PR_GET_DUMPABLE   3
     11 #define PR_SET_DUMPABLE   4
     12 
     13 /* Get/set unaligned access control bits (if meaningful) */
     14 #define PR_GET_UNALIGN	  5
     15 #define PR_SET_UNALIGN	  6
     16 # define PR_UNALIGN_NOPRINT	1	/* silently fix up unaligned user accesses */
     17 # define PR_UNALIGN_SIGBUS	2	/* generate SIGBUS on unaligned user access */
     18 
     19 /* Get/set whether or not to drop capabilities on setuid() away from uid 0 */
     20 #define PR_GET_KEEPCAPS   7
     21 #define PR_SET_KEEPCAPS   8
     22 
     23 /* Get/set floating-point emulation control bits (if meaningful) */
     24 #define PR_GET_FPEMU  9
     25 #define PR_SET_FPEMU 10
     26 # define PR_FPEMU_NOPRINT	1	/* silently emulate fp operations accesses */
     27 # define PR_FPEMU_SIGFPE	2	/* don't emulate fp operations, send SIGFPE instead */
     28 
     29 /* Get/set floating-point exception mode (if meaningful) */
     30 #define PR_GET_FPEXC	11
     31 #define PR_SET_FPEXC	12
     32 # define PR_FP_EXC_SW_ENABLE	0x80	/* Use FPEXC for FP exception enables */
     33 # define PR_FP_EXC_DIV		0x010000	/* floating point divide by zero */
     34 # define PR_FP_EXC_OVF		0x020000	/* floating point overflow */
     35 # define PR_FP_EXC_UND		0x040000	/* floating point underflow */
     36 # define PR_FP_EXC_RES		0x080000	/* floating point inexact result */
     37 # define PR_FP_EXC_INV		0x100000	/* floating point invalid operation */
     38 # define PR_FP_EXC_DISABLED	0	/* FP exceptions disabled */
     39 # define PR_FP_EXC_NONRECOV	1	/* async non-recoverable exc. mode */
     40 # define PR_FP_EXC_ASYNC	2	/* async recoverable exception mode */
     41 # define PR_FP_EXC_PRECISE	3	/* precise exception mode */
     42 
     43 /* Get/set whether we use statistical process timing or accurate timestamp
     44  * based process timing */
     45 #define PR_GET_TIMING   13
     46 #define PR_SET_TIMING   14
     47 # define PR_TIMING_STATISTICAL  0       /* Normal, traditional,
     48                                                    statistical process timing */
     49 # define PR_TIMING_TIMESTAMP    1       /* Accurate timestamp based
     50                                                    process timing */
     51 
     52 #define PR_SET_NAME    15		/* Set process name */
     53 #define PR_GET_NAME    16		/* Get process name */
     54 
     55 /* Get/set process endian */
     56 #define PR_GET_ENDIAN	19
     57 #define PR_SET_ENDIAN	20
     58 # define PR_ENDIAN_BIG		0
     59 # define PR_ENDIAN_LITTLE	1	/* True little endian mode */
     60 # define PR_ENDIAN_PPC_LITTLE	2	/* "PowerPC" pseudo little endian */
     61 
     62 /* Get/set process seccomp mode */
     63 #define PR_GET_SECCOMP	21
     64 #define PR_SET_SECCOMP	22
     65 
     66 #endif /* _LINUX_PRCTL_H */
     67