m68k: add NPTL/TLS support

Port over NPTL/TLS support from GNU C Library.
In the first step only the slower syscall is used for TLS
access. The uClibc-ng testsuite shows 79 errors, so their
is room for bugfixes and improvements.

1 files changed, 101 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/m68k/sys/reg.h b/libc/sysdeps/linux/m68k/sys/reg.h
new file mode 100644
index 000000000..133c862b4
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/sys/reg.h
@@ -0,0 +1,101 @@
+/* Copyright (C) 1998-2017 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 _SYS_REG_H
+#define _SYS_REG_H	1
+
+/* Index into an array of 4 byte integers returned from ptrace for
+   location of the users' stored general purpose registers. */
+
+enum
+{
+  PT_D1 = 0,
+#define PT_D1 PT_D1
+  PT_D2 = 1,
+#define PT_D2 PT_D2
+  PT_D3 = 2,
+#define PT_D3 PT_D3
+  PT_D4 = 3,
+#define PT_D4 PT_D4
+  PT_D5 = 4,
+#define PT_D5 PT_D5
+  PT_D6 = 5,
+#define PT_D6 PT_D6
+  PT_D7 = 6,
+#define PT_D7 PT_D7
+  PT_A0 = 7,
+#define PT_A0 PT_A0
+  PT_A1 = 8,
+#define PT_A1 PT_A1
+  PT_A2 = 9,
+#define PT_A2 PT_A2
+  PT_A3 = 10,
+#define PT_A3 PT_A3
+  PT_A4 = 11,
+#define PT_A4 PT_A4
+  PT_A5 = 12,
+#define PT_A5 PT_A5
+  PT_A6 = 13,
+#define PT_A6 PT_A6
+  PT_D0 = 14,
+#define PT_D0 PT_D0
+  PT_USP = 15,
+#define PT_USP PT_USP
+  PT_ORIG_D0 = 16,
+#define PT_ORIG_D0 PT_ORIG_D0
+  PT_SR = 17,
+#define PT_SR PT_SR
+  PT_PC = 18,
+#define PT_PC PT_PC
+
+#ifdef __mcoldfire__
+  PT_FP0 = 21,
+  PT_FP1 = 23,
+  PT_FP2 = 25,
+  PT_FP3 = 27,
+  PT_FP4 = 29,
+  PT_FP5 = 31,
+  PT_FP6 = 33,
+  PT_FP7 = 35,
+#else
+  PT_FP0 = 21,
+  PT_FP1 = 24,
+  PT_FP2 = 27,
+  PT_FP3 = 30,
+  PT_FP4 = 33,
+  PT_FP5 = 36,
+  PT_FP6 = 39,
+  PT_FP7 = 42,
+#endif
+#define PT_FP0 PT_FP0
+#define PT_FP1 PT_FP1
+#define PT_FP2 PT_FP2
+#define PT_FP3 PT_FP3
+#define PT_FP4 PT_FP4
+#define PT_FP5 PT_FP5
+#define PT_FP6 PT_FP6
+#define PT_FP7 PT_FP7
+
+  PT_FPCR = 45,
+#define PT_FPCR PT_FPCR
+  PT_FPSR = 46,
+#define PT_FPSR PT_FPSR
+  PT_FPIAR = 47
+#define PT_FPIAR PT_FPIAR
+};
+
+#endif	/* _SYS_REG_H */