granicus.if.org Git - strace/blob - process_vm.c

   1 #include "defs.h"
   2
   3 int
   4 sys_process_vm_readv(struct tcb *tcp)
   5 {
   6         if (entering(tcp)) {
   7                 /* arg 1: pid */
   8                 tprintf("%ld, ", tcp->u_arg[0]);
   9         } else {
  10                 /* arg 2: local iov */
  11                 if (syserror(tcp)) {
  12                         tprintf("%#lx", tcp->u_arg[1]);
  13                 } else {
  14                         tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
  15                 }
  16                 /* arg 3: local iovcnt */
  17                 tprintf(", %lu, ", tcp->u_arg[2]);
  18                 /* arg 4: remote iov */
  19                 if (syserror(tcp)) {
  20                         tprintf("%#lx", tcp->u_arg[3]);
  21                 } else {
  22                         tprint_iov(tcp, tcp->u_arg[4], tcp->u_arg[3], 0);
  23                 }
  24                 /* arg 5: remote iovcnt */
  25                 /* arg 6: flags */
  26                 tprintf(", %lu, %lu", tcp->u_arg[4], tcp->u_arg[5]);
  27         }
  28         return 0;
  29 }
  30
  31 int
  32 sys_process_vm_writev(struct tcb *tcp)
  33 {
  34         if (entering(tcp)) {
  35                 /* arg 1: pid */
  36                 tprintf("%ld, ", tcp->u_arg[0]);
  37                 /* arg 2: local iov */
  38                 if (syserror(tcp))
  39                         tprintf("%#lx", tcp->u_arg[1]);
  40                 else
  41                         tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
  42                 /* arg 3: local iovcnt */
  43                 tprintf(", %lu, ", tcp->u_arg[2]);
  44                 /* arg 4: remote iov */
  45                 if (syserror(tcp))
  46                         tprintf("%#lx", tcp->u_arg[3]);
  47                 else
  48                         tprint_iov(tcp, tcp->u_arg[4], tcp->u_arg[3], 0);
  49                 /* arg 5: remote iovcnt */
  50                 /* arg 6: flags */
  51                 tprintf(", %lu, %lu", tcp->u_arg[4], tcp->u_arg[5]);
  52         }
  53         return 0;
  54 }