[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/sysdeps/s390/dl-tls.h b/ap/libc/glibc/glibc-2.22/sysdeps/s390/dl-tls.h
new file mode 100644
index 0000000..8132b10
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/sysdeps/s390/dl-tls.h
@@ -0,0 +1,107 @@
+/* Thread-local storage handling in the ELF dynamic linker. s390 version.
+ Copyright (C) 2003-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+/* Type used for the representation of TLS information in the GOT. */
+typedef struct
+{
+ unsigned long int ti_module;
+ unsigned long int ti_offset;
+} tls_index;
+
+
+#ifdef SHARED
+
+extern unsigned long __tls_get_offset (unsigned long got_offset);
+
+# if IS_IN (rtld)
+
+# include <shlib-compat.h>
+
+/* dl-tls.c declares __tls_get_addr as an exported symbol if it is not defined
+ as a macro. It seems suitable to do that in the generic code because all
+ architectures other than s390 export __tls_get_addr. The declaration causes
+ problems in s390 though, so we define __tls_get_addr here to avoid declaring
+ __tls_get_addr again. */
+# define __tls_get_addr __tls_get_addr
+
+extern void *__tls_get_addr (tls_index *ti) attribute_hidden;
+/* Make a temporary alias of __tls_get_addr to remove the hidden
+ attribute. Then export __tls_get_addr as __tls_get_addr_internal
+ for use from libc. We do not want to export __tls_get_addr, but we
+ do need to use it from libc when looking up the address of a TLS
+ variable. We don't use __tls_get_offset because it requires r12 to
+ be setup and that might not always be true. Either way it's more
+ optimal to use __tls_get_addr directly (that's what
+ __tls_get_offset does anyways). */
+strong_alias (__tls_get_addr, __tls_get_addr_internal_tmp);
+versioned_symbol (ld, __tls_get_addr_internal_tmp,
+ __tls_get_addr_internal, GLIBC_PRIVATE);
+
+/* The special thing about the s390 TLS ABI is that we do not have the
+ standard __tls_get_addr function but the __tls_get_offset function
+ which differs in two important aspects:
+ 1) __tls_get_offset gets a got offset instead of a pointer to the
+ tls_index structure
+ 2) __tls_get_offset returns the offset of the requested variable to
+ the thread descriptor instead of a pointer to the variable.
+ */
+# ifdef __s390x__
+asm("\n\
+ .text\n\
+ .globl __tls_get_offset\n\
+ .type __tls_get_offset, @function\n\
+ .align 4\n\
+__tls_get_offset:\n\
+ la %r2,0(%r2,%r12)\n\
+ jg __tls_get_addr\n\
+");
+# elif defined __s390__
+asm("\n\
+ .text\n\
+ .globl __tls_get_offset\n\
+ .type __tls_get_offset, @function\n\
+ .align 4\n\
+__tls_get_offset:\n\
+ basr %r3,0\n\
+0: la %r2,0(%r2,%r12)\n\
+ l %r4,1f-0b(%r3)\n\
+ b 0(%r4,%r3)\n\
+1: .long __tls_get_addr - 0b\n\
+");
+# endif
+# else /* IS_IN (rtld) */
+extern void *__tls_get_addr_internal (tls_index *ti);
+# endif /* !IS_IN (rtld) */
+
+# define GET_ADDR_OFFSET \
+ (ti->ti_offset - (unsigned long) __builtin_thread_pointer ())
+
+/* Use the privately exported __tls_get_addr_internal instead of
+ __tls_get_offset in order to avoid the __tls_get_offset special
+ linkage requiring the GOT pointer to be set up in r12. The
+ compiler will take care of setting up r12 only if itself issued the
+ __tls_get_offset call. */
+# define __TLS_GET_ADDR(__ti) \
+ ({ __tls_get_addr_internal (__ti) \
+ + (unsigned long) __builtin_thread_pointer (); })
+
+#endif
+
+/* Value used for dtv entries for which the allocation is delayed. */
+#define TLS_DTV_UNALLOCATED ((void *) -1l)