From dba942c80dc2cfa5768a856fff98e22a755fdd27 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Tue, 4 Oct 2016 06:51:35 +0200 Subject: add experimental aarch64 support Ported over from GNU C Library and runtime tested in Qemu. --- libpthread/nptl/sysdeps/aarch64/libc-tls.c | 35 ++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 libpthread/nptl/sysdeps/aarch64/libc-tls.c (limited to 'libpthread/nptl/sysdeps/aarch64/libc-tls.c') diff --git a/libpthread/nptl/sysdeps/aarch64/libc-tls.c b/libpthread/nptl/sysdeps/aarch64/libc-tls.c new file mode 100644 index 000000000..4e2bd3731 --- /dev/null +++ b/libpthread/nptl/sysdeps/aarch64/libc-tls.c @@ -0,0 +1,35 @@ +/* Thread-local storage handling in the ELF dynamic linker. AARCH64 version. + Copyright (C) 2005 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 + . */ + +#include +#include + +#if defined(USE_TLS) && USE_TLS + +/* On AARCH64, 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 + ti->ti_offset; +} + +#endif -- cgit v1.2.3