mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
337126607f
This patch implements TLS support for RISC-V. We support all four standard TLS addressing modes (LE, IE, LD, and GD) when running on Linux via NPTL. There is a draft psABI document that defines our TLS ABI here https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md#thread-local-storage 2018-01-29 Palmer Dabbelt <palmer@sifive.com> * sysdeps/riscv/dl-tls.h: New file. * sysdeps/riscv/libc-tls.c: Likewise. * sysdeps/riscv/nptl/tcb-offsets.sym: Likewise. * sysdeps/riscv/nptl/tls.h: Likewise. * sysdeps/riscv/stackinfo.h: Likewise.
33 lines
1.3 KiB
C
33 lines
1.3 KiB
C
/* Thread-local storage handling in the ELF dynamic linker. RISC-V version.
|
|
Copyright (C) 2011-2018 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/>. */
|
|
|
|
#include <csu/libc-tls.c>
|
|
#include <dl-tls.h>
|
|
|
|
/* On RISC-V, 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;
|
|
}
|