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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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4
tasks/libl4/include/l4lib/arch-arm/syscalls.h
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@@ -59,10 +59,10 @@ typedef int (*__l4_ipc_control_t)(unsigned int action, l4id_t blocked_sender,
extern __l4_ipc_control_t __l4_ipc_control;
int l4_ipc_control(unsigned int, l4id_t blocked_sender, u32 blocked_tag);
typedef int (*__l4_exchange_registers_t)(unsigned int pc, unsigned int sp,
typedef int (*__l4_exchange_registers_t)(void *exregs_struct,
l4id_t pager, l4id_t tid);
extern __l4_exchange_registers_t __l4_exchange_registers;
int l4_exchange_registers(unsigned int pc, unsigned int sp, int pager, l4id_t tid);
int l4_exchange_registers(void *exregs_struct, l4id_t pager, l4id_t tid);
typedef int (*__l4_kmem_control_t)(unsigned long pfn, int npages, int grant);
extern __l4_kmem_control_t __l4_kmem_control;