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| author | caiyinyu <caiyinyu@loongson.cn> | 2022-07-19 09:20:47 +0800 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-07-26 12:35:12 -0300 |
| commit | 619bfc6770275da9deceb87187f47ab95b3b24cc (patch) | |
| tree | 363dbfa567d56ac6591caddd6d72d819c48bce84 /sysdeps/loongarch/dl-tls.h | |
| parent | a133942025da6fa62bb059b02f4e7a4b6e03e34a (diff) | |
| download | glibc-619bfc6770275da9deceb87187f47ab95b3b24cc.tar.gz glibc-619bfc6770275da9deceb87187f47ab95b3b24cc.tar.xz glibc-619bfc6770275da9deceb87187f47ab95b3b24cc.zip | |
LoongArch: Thread-Local Storage Support
Diffstat (limited to 'sysdeps/loongarch/dl-tls.h')
| -rw-r--r-- | sysdeps/loongarch/dl-tls.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/loongarch/dl-tls.h b/sysdeps/loongarch/dl-tls.h new file mode 100644 index 0000000000..f82edcae76 --- /dev/null +++ b/sysdeps/loongarch/dl-tls.h @@ -0,0 +1,46 @@ +/* Thread-local storage handling in the ELF dynamic linker. + Copyright (C) 2022 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/>. */ + +/* Type used for the representation of TLS information in the GOT. */ +typedef struct +{ + unsigned long int ti_module; + unsigned long int ti_offset; +} tls_index; + +/* The thread pointer points to the first static TLS block. */ +#define TLS_TP_OFFSET 0 + +/* Dynamic thread vector pointers point to the start of each + TLS block. */ +#define TLS_DTV_OFFSET 0 + +/* Compute the value for a GOTTPREL reloc. */ +#define TLS_TPREL_VALUE(sym_map, sym) \ + ((sym_map)->l_tls_offset + (sym)->st_value - TLS_TP_OFFSET) + +/* Compute the value for a DTPREL reloc. */ +#define TLS_DTPREL_VALUE(sym) ((sym)->st_value - TLS_DTV_OFFSET) + +extern void *__tls_get_addr (tls_index *ti); + +#define GET_ADDR_OFFSET (ti->ti_offset + TLS_DTV_OFFSET) +#define __TLS_GET_ADDR(__ti) (__tls_get_addr (__ti) - TLS_DTV_OFFSET) + +/* Value used for dtv entries for which the allocation is delayed. */ +#define TLS_DTV_UNALLOCATED ((void *) -1l) |