[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/generic/tls.h b/ap/libc/glibc/glibc-2.22/sysdeps/generic/tls.h
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+/* Definition for thread-local data handling. Generic version.
+ Copyright (C) 2002-2015 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/>. */
+
+/* An architecture-specific version of this file has to defined a
+ number of symbols:
+
+ TLS_TCB_AT_TP or TLS_DTV_AT_TP
+
+ The presence of one of these symbols signals which variant of
+ the TLS ABI is used. There are in the moment two variants
+ available:
+
+ * the thread pointer points to a thread control block
+
+ * the thread pointer points to the dynamic thread vector
+
+
+ TLS_TCB_SIZE
+
+ This is the size of the thread control block structure. How
+ this is actually defined depends on the ABI. The thread control
+ block could be internal descriptor of the thread library or
+ just a data structure which allows finding the DTV.
+
+ TLS_INIT_TCB_SIZE
+
+ Similarly, but this value is only used at startup and in the
+ dynamic linker itself. There are no threads in use at that time.
+
+
+ TLS_TCB_ALIGN
+
+ Alignment requirements for the TCB structure.
+
+ TLS_INIT_TCB_ALIGN
+
+ Similarly, but for the structure used at startup time.
+
+
+ INSTALL_DTV(tcb, init_dtv)
+
+ This macro must install the given initial DTV into the thread control
+ block TCB. The normal runtime functionality must then be able to
+ use the value.
+
+
+ TLS_INIT_TP(tcb)
+
+ This macro must initialize the thread pointer to enable normal TLS
+ operation. The parameter is a pointer to the thread control block.
+ ld.so calls this macro once.
+
+
+ THREAD_DTV()
+
+ This macro returns the address of the DTV of the current thread.
+ This normally is done using the thread register which points
+ to the dtv or the TCB (from which the DTV can found).
+ */