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Towards finishing exchange_registers()

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- Added mutex_trylock()
- Implemented most of exchange_registers()
- thread_control() now needs a lock for operations that can modify thread context.
- thread_start() does not initialise scheduler flags, now done in thread_create.

TODO:
- Fork/clone'ed threads should retain their context in tcb, not syscall stack.
- exchange_registers() calls in userspace need cleaning up.
This commit is contained in:
Bahadir Balban
2008-09-13 18:07:00 +03:00
parent 0b3ab05a98
commit 4fb5277123
23 changed files with 460 additions and 98 deletions
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14
include/l4/api/thread.h
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@@ -1,16 +1,18 @@
#ifndef __THREAD_H__
#define __THREAD_H__
#define THREAD_FLAGS_MASK 0x00F0
/* Create new thread, copy given space */
#define THREAD_CREATE_COPYSPC 0x0010
#define THREAD_CREATE_MASK 0x00F0
/* Create new thread and new space */
#define THREAD_CREATE_NEWSPC 0x0020
#define THREAD_NEW_SPACE 0x0010
/* Create new thread, copy given space */
#define THREAD_COPY_SPACE 0x0020
/* Create new thread, use given space */
#define THREAD_CREATE_SAMESPC 0x0030
#define THREAD_SAME_SPACE 0x0030
#define THREAD_ACTION_MASK 0x000F