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haiku/headers/private/system/tls.h

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* The pthread_thread structure is now allocated for all threads. * Therefore, all pthread functions should now work fine on all threads. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33967 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-11-10 00:33:35 +03:00
/*
* Copyright 2003-2009, Axel Dörfler, axeld@pinc-software.de.
* Distributed under the terms of the MIT License.
*/
Added a private tls.h file with definitions for the reserved TLS slots. Renamed i386_set_kstack() to i386_set_tss_and_kstack(), because that's what it does. Added a new function arch_thread_init_tls() which must be called after having allocated the TLS area. Renamed arch_thread_initialize_kthread_stack() to arch_thread_init_kthread_stack() to be more consistent. Changed the parameters for arch_thread_enter_uspace() - it now gets a pointer to the thread structure and takes the user stack pointer from there (which might also be architectural different). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2379 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-01-07 12:17:31 +03:00
#ifndef _KERNEL_TLS_H
#define _KERNEL_TLS_H
* The pthread_thread structure is now allocated for all threads. * Therefore, all pthread functions should now work fine on all threads. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33967 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-11-10 00:33:35 +03:00
Added a private tls.h file with definitions for the reserved TLS slots. Renamed i386_set_kstack() to i386_set_tss_and_kstack(), because that's what it does. Added a new function arch_thread_init_tls() which must be called after having allocated the TLS area. Renamed arch_thread_initialize_kthread_stack() to arch_thread_init_kthread_stack() to be more consistent. Changed the parameters for arch_thread_enter_uspace() - it now gets a pointer to the thread structure and takes the user stack pointer from there (which might also be architectural different). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2379 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-01-07 12:17:31 +03:00
#include <support/TLS.h>
#define TLS_SIZE (TLS_MAX_KEYS * sizeof(void *))
kernel/x86_64: adjust descriptors tables for compatibility mode. * also adjust BOOT_GDT_SEGMENT_COUNT for x86, the definition is used by the boot loader. * add some 32-bit definitions. * add a UserTLSDescriptor class, this will be used by 32-bit threads. Change-Id: I5b1d978969a1ce97091a16c9ec2ad7c0ca831656
2018-05-03 20:54:33 +03:00
#define TLS_COMPAT_SIZE (TLS_MAX_KEYS * sizeof(uint32))
Added a private tls.h file with definitions for the reserved TLS slots. Renamed i386_set_kstack() to i386_set_tss_and_kstack(), because that's what it does. Added a new function arch_thread_init_tls() which must be called after having allocated the TLS area. Renamed arch_thread_initialize_kthread_stack() to arch_thread_init_kthread_stack() to be more consistent. Changed the parameters for arch_thread_enter_uspace() - it now gets a pointer to the thread structure and takes the user stack pointer from there (which might also be architectural different). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2379 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-01-07 12:17:31 +03:00
enum {
TLS_BASE_ADDRESS_SLOT = 0,
// contains the address of the local storage space
TLS_THREAD_ID_SLOT,
TLS_ERRNO_SLOT,
Added another argument parameter for the thread creation code. Helps implementing a more efficient on_exit_thread(). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3073 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-04-18 13:21:22 +04:00
TLS_ON_EXIT_THREAD_SLOT,
* For each userland team the kernel creates an area in the userland address space that is fully locked and marked B_KERNEL_AREA. It can thus be accessed by the kernel without additional checks. * For each userland thread we do create a user_thread structure in that area. The structure is accessible from userland via TLS, using the private get_user_thread() function. * Introduced private userland functions [un]defer_signals(). They can be used to cheaply disable/re-enable signal delivery. They use the user_thread::defer_signals/pending_signals fields which are checked/updated by the kernel. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25451 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-11 20:25:35 +04:00
TLS_USER_THREAD_SLOT,
runtime_loader: add support for ELF based TLS This patch introduces support of ELF based TLS handling with lazy allocation and initalization of TLS block for each DSO and thread. The implementation generally follows the official ABI except that generation counter in dtv is in fact a pointer to Generation object that contains both generation counter and size of the dtv. That simplified the implementation a bit, but could be changed later. The ABI requirements regariding in memory position of TLS block is not honoured what results in static TLS model being unsupported. However, that should not be a problem as long as "executables" in Haiku are in fact shared objects and optimizations which require specific TLS block in memory layout are not possible anyway.
2014-05-04 04:33:14 +04:00
TLS_DYNAMIC_THREAD_VECTOR,
Added a private tls.h file with definitions for the reserved TLS slots. Renamed i386_set_kstack() to i386_set_tss_and_kstack(), because that's what it does. Added a new function arch_thread_init_tls() which must be called after having allocated the TLS area. Renamed arch_thread_initialize_kthread_stack() to arch_thread_init_kthread_stack() to be more consistent. Changed the parameters for arch_thread_enter_uspace() - it now gets a pointer to the thread structure and takes the user stack pointer from there (which might also be architectural different). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2379 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-01-07 12:17:31 +03:00
// Note: these entries can safely be changed between
// releases; 3rd party code always calls tls_allocate()
// to get a free slot
TLS_FIRST_FREE_SLOT
// the first free slot for user allocations
};
#endif /* _KERNEL_TLS_H */
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