mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
8090720a87
RISC-V TLS doesn't require GP to be initialized, and doing so breaks TLS in a shared object.
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* Macros to support TLS testing in times of missing compiler support.
|
|
Copyright (C) 2017-2018 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 <sys/cdefs.h>
|
|
#include <sys/asm.h>
|
|
#include <sysdep.h>
|
|
#include "dl-tls.h"
|
|
|
|
#define TLS_GD(x) \
|
|
({ void *__result; \
|
|
asm ("la.tls.gd %0, " #x "\n\t" \
|
|
: "=r" (__result)); \
|
|
__tls_get_addr (__result); })
|
|
|
|
#define TLS_LD(x) TLS_GD(x)
|
|
|
|
#define TLS_IE(x) \
|
|
({ void *__result; \
|
|
asm ("la.tls.ie %0, " #x "\n\t" \
|
|
"add %0, %0, tp\n\t" \
|
|
: "=r" (__result)); \
|
|
__result; })
|
|
|
|
#define TLS_LE(x) \
|
|
({ void *__result; \
|
|
asm ("lui %0, %%tprel_hi(" #x ")\n\t" \
|
|
"add %0, %0, tp, %%tprel_add(" #x ")\n\t" \
|
|
"addi %0, %0, %%tprel_lo(" #x ")\n\t" \
|
|
: "=r" (__result)); \
|
|
__result; })
|