glibc/sysdeps/loongarch/tlsdesc.c
mengqinggang 1dbf2bef79 LoongArch: Add support for TLS Descriptors
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.
2024-05-15 10:31:53 +08:00

40 lines
1.2 KiB
C

/* Manage TLS descriptors. LoongArch64 version.
Copyright (C) 2024 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
<https://www.gnu.org/licenses/>. */
#include <ldsodefs.h>
#include <tls.h>
#include <dl-tlsdesc.h>
#include <dl-unmap-segments.h>
#include <tlsdeschtab.h>
/* Unmap the dynamic object, but also release its TLS descriptor table
if there is one. */
void
_dl_unmap (struct link_map *map)
{
_dl_unmap_segments (map);
#ifdef SHARED
if (map->l_mach.tlsdesc_table)
htab_delete (map->l_mach.tlsdesc_table);
#endif
}