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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2017-12-16 21:01:39 +0100
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2017-12-31 11:12:07 +0100
commit23bb649090ff588e8642f0c581cfe7ce2d29c757 (patch)
tree4a68d696415fce9f2dd50edf27a79bacbde3fc50 /libc/sysdeps/linux/m68k/jmpbuf-unwind.h
parent604781391549faafc59516700d9439ab1a7ec19b (diff)
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.
Diffstat (limited to 'libc/sysdeps/linux/m68k/jmpbuf-unwind.h')
-rw-r--r--libc/sysdeps/linux/m68k/jmpbuf-unwind.h39
1 files changed, 34 insertions, 5 deletions
diff --git a/libc/sysdeps/linux/m68k/jmpbuf-unwind.h b/libc/sysdeps/linux/m68k/jmpbuf-unwind.h
index c5a8886e2..8744ec7e8 100644
--- a/libc/sysdeps/linux/m68k/jmpbuf-unwind.h
+++ b/libc/sysdeps/linux/m68k/jmpbuf-unwind.h
@@ -1,8 +1,19 @@
-/*
- * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- */
+/* Examine __jmp_buf for unwinding frames. m68k version.
+ Copyright (C) 2006-2017 Free Software Foundation, Inc.
+
+ 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/>. */
#include <setjmp.h>
@@ -10,3 +21,21 @@
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf)->__aregs[5])
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <stdint.h>
+#include <unwind.h>
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf regs)
+{
+ uintptr_t sp = (uintptr_t) regs[0].__sp;
+ return sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+#endif