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green: Don't return the red zone in stack_bounds() #12908

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green: Don't return the red zone in stack_bounds() #12908

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9 changes: 6 additions & 3 deletions src/libgreen/task.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -20,14 +20,15 @@

use std::any::Any;
use std::cast;
use std::rt::env;
use std::raw;
use std::rt::Runtime;
use std::rt::env;
use std::rt::local::Local;
use std::rt::rtio;
use std::rt::stack;
use std::rt::task::{Task, BlockedTask, SendMessage};
use std::task::TaskOpts;
use std::unstable::mutex::NativeMutex;
use std::raw;

use context::Context;
use coroutine::Coroutine;
Expand Down Expand Up @@ -469,7 +470,9 @@ impl Runtime for GreenTask {
let c = self.coroutine.as_ref()
.expect("GreenTask.stack_bounds called without a coroutine");

(c.current_stack_segment.start() as uint,
// Don't return the red zone as part of the usable stack of this task,
// it's essentially an implementation detail.
(c.current_stack_segment.start() as uint + stack::RED_ZONE,
c.current_stack_segment.end() as uint)
}

Expand Down