src/shims/foreign_items/posix/macos.rs

   1 use crate::*;
   2
   3 impl<'mir, 'tcx> EvalContextExt<'mir, 'tcx> for crate::MiriEvalContext<'mir, 'tcx> {}
   4 pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx> {
   5     fn emulate_foreign_item_by_name(
   6         &mut self,
   7         link_name: &str,
   8         args: &[OpTy<'tcx, Tag>],
   9         dest: PlaceTy<'tcx, Tag>,
  10     ) -> InterpResult<'tcx> {
  11         let this = self.eval_context_mut();
  12
  13         match link_name {
  14             "__error" => {
  15                 let errno_place = this.machine.last_error.unwrap();
  16                 this.write_scalar(errno_place.to_ref().to_scalar()?, dest)?;
  17             }
  18
  19             // File related shims
  20              "open" => {
  21                 let result = this.open(args[0], args[1])?;
  22                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  23             }
  24
  25             "close$NOCANCEL" => {
  26                 let result = this.close(args[0])?;
  27                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  28             }
  29
  30             "stat$INODE64" => {
  31                 let result = this.stat(args[0], args[1])?;
  32                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  33             }
  34
  35             "lstat$INODE64" => {
  36                 let result = this.lstat(args[0], args[1])?;
  37                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  38             }
  39
  40             "fstat$INODE64" => {
  41                 let result = this.fstat(args[0], args[1])?;
  42                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  43             }
  44
  45             "lseek" => {
  46                 let result = this.lseek64(args[0], args[1], args[2])?;
  47                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  48             }
  49
  50             // Time related shims
  51             "gettimeofday" => {
  52                 let result = this.gettimeofday(args[0], args[1])?;
  53                 this.write_scalar(Scalar::from_int(result, dest.layout.size), dest)?;
  54             }
  55
  56             _ => throw_unsup_format!("can't call foreign function: {}", link_name),
  57         };
  58
  59         Ok(())
  60     }
  61 }
  62