From 23bb649090ff588e8642f0c581cfe7ce2d29c757 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 16 Dec 2017 21:01:39 +0100 Subject: 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. --- libpthread/nptl/sysdeps/m68k/libc-tls.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 libpthread/nptl/sysdeps/m68k/libc-tls.c (limited to 'libpthread/nptl/sysdeps/m68k/libc-tls.c') diff --git a/libpthread/nptl/sysdeps/m68k/libc-tls.c b/libpthread/nptl/sysdeps/m68k/libc-tls.c new file mode 100644 index 000000000..50fc030af --- /dev/null +++ b/libpthread/nptl/sysdeps/m68k/libc-tls.c @@ -0,0 +1,32 @@ +/* Thread-local storage handling in the ELF dynamic linker. m68k version. + Copyright (C) 2010-2017 Free Software Foundation, Inc. + Contributed by Maxim Kuvyrkov , 2010. + + 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 + . */ + +#include +#include + +/* On M68K, linker optimizations are not required, so __tls_get_addr + can be called even in statically linked binaries. In this case module + must be always 1 and PT_TLS segment exist in the binary, otherwise it + would not link. */ + +void * +__tls_get_addr (tls_index *ti) +{ + dtv_t *dtv = THREAD_DTV (); + return (char *) dtv[1].pointer.val + GET_ADDR_OFFSET; +} -- cgit v1.2.3