diff options
Diffstat (limited to 'sysdeps/riscv/dl-tls.h')
| -rw-r--r-- | sysdeps/riscv/dl-tls.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/riscv/dl-tls.h b/sysdeps/riscv/dl-tls.h new file mode 100644 index 0000000000..ab2d860314 --- /dev/null +++ b/sysdeps/riscv/dl-tls.h @@ -0,0 +1,48 @@ +/* Thread-local storage handling in the ELF dynamic linker. RISC-V version. + Copyright (C) 2011-2018 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/>. */ + + +/* 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 0x800 past the start of each + TLS block. */ +#define TLS_DTV_OFFSET 0x800 + +/* 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) |