prctl-alpha-sysinfo.patch

   1 --- prctl-1.4/prctl.c.orig      2004-11-28 00:57:17.000000000 +0100
   2 +++ prctl-1.4/prctl.c   2004-11-28 00:55:27.000000000 +0100
   3 @@ -25,8 +25,12 @@
   4  #include <getopt.h>
   5  #include <errno.h>
   6  #include <pwd.h>
   7 -#include <linux/prctl.h>
   8 +#include <sys/prctl.h>
   9  #include <string.h>
  10 +#ifdef __alpha__
  11 +#include <asm/sysinfo.h>
  12 +#include <asm/unistd.h>
  13 +#endif
  14
  15  /* Version */
  16  #define VERSION        "1.4"
  17 @@ -37,6 +41,20 @@
  18  #define PSR_UC         0x08
  19  /* Command line options */
  20
  21 +#ifdef __alpha__
  22 +unsigned long getsysinfo(unsigned long op, void *buffer, unsigned long nbytes,
  23 +               int *start, void *arg)
  24 +{
  25 +       return syscall(__NR_osf_getsysinfo, op, buffer, nbytes, start, arg);
  26 +}
  27 +
  28 +unsigned long setsysinfo(unsigned long op, void *buffer, unsigned long nbytes,
  29 +               int *start, void *arg)
  30 +{
  31 +       return syscall(__NR_osf_setsysinfo, op, buffer, nbytes, start, arg);
  32 +}
  33 +#endif
  34 +
  35  struct option longopts[] = {
  36         {"unaligned", 1, (int *)0, 'u'},
  37         {"fpemu", 1, (int *)0, 'f'},
  38 @@ -72,6 +90,57 @@
  39         int alignval, retval;
  40         int umask;
  41
  42 +#ifdef __alpha__
  43 +       if (prctl_val == -1) {
  44 +               unsigned int val;
  45 +
  46 +               retval = 0;
  47 +               if(getsysinfo(GSI_UACPROC, &val, sizeof(val), NULL, NULL) != 1) {
  48 +                       retval = -1;
  49 +                       goto out;
  50 +               }
  51 +               printf("%-13s= ", "unaligned");
  52 +               if(!val)
  53 +                       printf("default\n");
  54 +               else
  55 +                       printf("%s%s%s%s%s\n",
  56 +                               (val & UAC_NOPRINT) ? "silent" : "",
  57 +                               (val & UAC_NOPRINT) && (val & (UAC_NOFIX | UAC_SIGBUS)) ? "," : "",
  58 +                               (val & UAC_NOFIX) ? "nofix" : "",
  59 +                               (val & UAC_NOFIX) && (val & UAC_SIGBUS) ? "," : "",
  60 +                               (val & UAC_SIGBUS) ? "signal" : "");
  61 +       } else {
  62 +               unsigned int buf[2];
  63 +               buf[0] = SSIN_UACPROC;
  64 +               buf[1] = 0;
  65 +               if(prctl_val & PR_UNALIGN_NOPRINT)
  66 +                       buf[1] |= UAC_NOPRINT;
  67 +               if(prctl_val & PR_UNALIGN_SIGBUS)
  68 +                       buf[1] |= UAC_SIGBUS;
  69 +               retval = 0;
  70 +               if(setsysinfo(SSI_NVPAIRS, buf, 1, NULL, NULL) != 0)
  71 +                       retval = -1;
  72 +               else {
  73 +                       if (verbose) {
  74 +                               printf("Set \"unaligned\" to ");
  75 +                               switch (prctl_val) {
  76 +                               case 0:
  77 +                                       printf("\"default\"\n");
  78 +                                       break;
  79 +
  80 +                               case PR_UNALIGN_NOPRINT:
  81 +                                       printf("\"silent\"\n");
  82 +                                       break;
  83 +
  84 +                               case PR_UNALIGN_SIGBUS:
  85 +                                       printf("\"signal\"\n");
  86 +                                       break;
  87 +                               }
  88 +                       }
  89 +               }
  90 +       }
  91 +out:
  92 +#else
  93         /*
  94          * Check if we need to display the value or set it.
  95          */
  96 @@ -118,6 +187,7 @@
  97                         }
  98                 }
  99         }
 100 +#endif
 101         if (retval == -1) {
 102                 fprintf(stderr, "Failed to %s \"unalign\" value: %s\n",
 103                         ((prctl_val == -1)?"get":"set"), strerror(errno));