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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/powerpc/dl-tls.h
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/dl-tls.h')
-rw-r--r--REORG.TODO/sysdeps/powerpc/dl-tls.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/dl-tls.h b/REORG.TODO/sysdeps/powerpc/dl-tls.h
new file mode 100644
index 0000000000..54beaee5ae
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/dl-tls.h
@@ -0,0 +1,52 @@
+/* Thread-local storage handling in the ELF dynamic linker.  PowerPC version.
+   Copyright (C) 2003-2017 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/>.  */
+
+#ifndef _PPC_DL_TLS_H
+# define _PPC_DL_TLS_H 1
+
+/* Type used for the representation of TLS information in the TOC.  */
+typedef struct
+{
+  unsigned long int ti_module;
+  unsigned long int ti_offset;
+} tls_index;
+
+/* The thread pointer points 0x7000 past the first static TLS block.  */
+#define TLS_TP_OFFSET		0x7000
+
+/* Dynamic thread vector pointers point 0x8000 past the start of each
+   TLS block.  */
+#define TLS_DTV_OFFSET		0x8000
+
+/* Compute the value for a @tprel reloc.  */
+#define TLS_TPREL_VALUE(sym_map, sym, reloc) \
+  ((sym_map)->l_tls_offset + (sym)->st_value + (reloc)->r_addend \
+   - TLS_TP_OFFSET)
+
+/* Compute the value for a @dtprel reloc.  */
+#define TLS_DTPREL_VALUE(sym, reloc) \
+  ((sym)->st_value + (reloc)->r_addend - TLS_DTV_OFFSET)
+
+#ifdef SHARED
+extern void *__tls_get_addr (tls_index *ti);
+
+# define GET_ADDR_OFFSET	(ti->ti_offset + TLS_DTV_OFFSET)
+# define __TLS_GET_ADDR(__ti)	(__tls_get_addr (__ti) - TLS_DTV_OFFSET)
+#endif
+
+#endif /* dl-tls.h */