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ab9c196492
RISC-V TLS doesn't require GP to be initialized, and doing so breaks
TLS in a shared object.
(cherry picked from commit 8090720a87)
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* Macros to support TLS testing in times of missing compiler support.
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Copyright (C) 2017-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/cdefs.h>
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#include <sys/asm.h>
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#include <sysdep.h>
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#include "dl-tls.h"
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#define TLS_GD(x) \
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({ void *__result; \
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asm ("la.tls.gd %0, " #x "\n\t" \
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: "=r" (__result)); \
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__tls_get_addr (__result); })
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#define TLS_LD(x) TLS_GD(x)
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#define TLS_IE(x) \
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({ void *__result; \
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asm ("la.tls.ie %0, " #x "\n\t" \
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"add %0, %0, tp\n\t" \
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: "=r" (__result)); \
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__result; })
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#define TLS_LE(x) \
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({ void *__result; \
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asm ("lui %0, %%tprel_hi(" #x ")\n\t" \
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"add %0, %0, tp, %%tprel_add(" #x ")\n\t" \
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"addi %0, %0, %%tprel_lo(" #x ")\n\t" \
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: "=r" (__result)); \
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__result; })
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