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* include/link.h (FORCED_DYNAMIC_TLS_OFFSET): Define.

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* elf/dl-close.c (_dl_close): Check for it.
	* elf/dl-reloc.c (CHECK_STATIC_TLS): Likewise.
	(_dl_allocate_static_tls): Likewise.
	* elf/dl-tls.c (_dl_allocate_tls_init): Likewise.
	(__tls_get_addr): Protect from race conditions in setting l_tls_offset
	to it.
	* elf/tst-tls16.c: New file.
	* elf/tst-tlsmod16a.c: New file.
	* elf/tst-tlsmod16b.c: New file.
	* elf/Makefile: Add rules to build and run tst-tls16.
This commit is contained in:
Ulrich Drepper
2008-01-17 20:20:00 +00:00
parent a0f6c236e0
commit 4c533566c2
9 changed files with 138 additions and 10 deletions
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9
include/link.h
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@@ -278,6 +278,15 @@ struct link_map
size_t l_tls_firstbyte_offset;
#ifndef NO_TLS_OFFSET
# define NO_TLS_OFFSET 0
#endif
#ifndef FORCED_DYNAMIC_TLS_OFFSET
# if NO_TLS_OFFSET == 0
# define FORCED_DYNAMIC_TLS_OFFSET 1
# elif NO_TLS_OFFSET == -1
# define FORCED_DYNAMIC_TLS_OFFSET -2
# else
# error "FORCED_DYNAMIC_TLS_OFFSET is not defined"
# endif
#endif
/* For objects present at startup time: offset in the static TLS block. */
ptrdiff_t l_tls_offset;