glibc/sysdeps/x86_64/rtld-offsets.sym

#define SHARED
#include <ldsodefs.h>

--

GL_TLS_GENERATION_OFFSET        offsetof (struct rtld_global, _dl_tls_generation)
x86-64: Align the stack in __tls_get_addr [BZ #21609] This change forces realignment of the stack pointer in __tls_get_addr, so that binaries compiled by GCCs older than GCC 4.9: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066 continue to work even if vector instructions are used in glibc which require the ABI stack realignment. __tls_get_addr_slow is added to handle the slow paths in the default implementation of__tls_get_addr in elf/dl-tls.c. The new __tls_get_addr calls __tls_get_addr_slow after realigning the stack. Internal calls within ld.so go directly to the default implementation of __tls_get_addr because they do not need stack realignment. [BZ #21609] * sysdeps/x86_64/Makefile (sysdep-dl-routines): Add tls_get_addr. (gen-as-const-headers): Add rtld-offsets.sym. * sysdeps/x86_64/dl-tls.c: New file. * sysdeps/x86_64/rtld-offsets.sym: Likwise. * sysdeps/x86_64/tls_get_addr.S: Likewise. * sysdeps/x86_64/dl-tls.h: Add multiple inclusion guards. * sysdeps/x86_64/tlsdesc.sym (TI_MODULE_OFFSET): New. (TI_OFFSET_OFFSET): Likwise. 2017-07-06 11:43:06 +00:00			`#define SHARED`
			`#include <ldsodefs.h>`

			`--`

			`GL_TLS_GENERATION_OFFSET offsetof (struct rtld_global, _dl_tls_generation)`