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1dbf2bef79
This is mostly based on AArch64 and RISC-V implementation. Add R_LARCH_TLS_DESC32 and R_LARCH_TLS_DESC64 relocations. For _dl_tlsdesc_dynamic function slow path, temporarily save and restore all vector registers.
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* Thread-local storage descriptor handling in the ELF dynamic linker.
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LoongArch version.
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Copyright (C) 2024 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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<https://www.gnu.org/licenses/>. */
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#ifndef _DL_TLSDESC_H
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#define _DL_TLSDESC_H
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#include <dl-tls.h>
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/* Type used to represent a TLS descriptor in the GOT. */
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struct tlsdesc
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{
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ptrdiff_t (*entry) (struct tlsdesc *);
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void *arg;
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};
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/* Type used as the argument in a TLS descriptor for a symbol that
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needs dynamic TLS offsets. */
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struct tlsdesc_dynamic_arg
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{
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tls_index tlsinfo;
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size_t gen_count;
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};
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extern ptrdiff_t attribute_hidden _dl_tlsdesc_return (struct tlsdesc *);
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extern ptrdiff_t attribute_hidden _dl_tlsdesc_undefweak (struct tlsdesc *);
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#ifdef SHARED
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extern void *_dl_make_tlsdesc_dynamic (struct link_map *, size_t);
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extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic (struct tlsdesc *);
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#endif
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#endif
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