Thread-Local Storage (TLS)

Thread-local storage (TLS) support. More...

Files
file	tls.h
	Thread-Local Storage (TLS)

Data Structures
struct	TLS_Dynamic_thread_vector
struct	TLS_Thread_control_block
struct	TLS_Index

Typedefs
typedef struct TLS_Thread_control_block	TLS_Thread_control_block

Functions
uintptr_t	_TLS_Get_allocation_size (void)
	Return the TLS area allocation size. More...

Variables
char	_TLS_Data_begin []
char	_TLS_Data_end []
char	_TLS_Data_size []
char	_TLS_BSS_begin []
char	_TLS_BSS_end []
char	_TLS_BSS_size []
char	_TLS_Size []
char	_TLS_Alignment []
	The TLS section alignment. More...

Detailed Description

Thread-local storage (TLS) support.

Variants I and II are according to Ulrich Drepper, "ELF Handling For Thread-Local Storage".

Function Documentation

_TLS_Get_allocation_size()

uintptr_t _TLS_Get_allocation_size

(

void

)

Return the TLS area allocation size.

Returns

The TLS area allocation size.

Variable Documentation

_TLS_Alignment

char _TLS_Alignment[]

The TLS section alignment.

This symbol is provided by the linker command file as the maximum alignment of the .tdata and .tbss sections. The linker ensures that the first TLS output section is aligned to the maximum alignment of all TLS output sections, see function _bfd_elf_tls_setup() in bfd/elflink.c of the GNU Binutils sources. The linker command file must take into account the case that the .tdata section is empty and the .tbss section is non-empty.