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Diffstat (limited to 'sysdeps/riscv/tls-macros.h')
| -rw-r--r-- | sysdeps/riscv/tls-macros.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/sysdeps/riscv/tls-macros.h b/sysdeps/riscv/tls-macros.h new file mode 100644 index 0000000000..5433ed9d16 --- /dev/null +++ b/sysdeps/riscv/tls-macros.h @@ -0,0 +1,61 @@ +/* Macros to support TLS testing in times of missing compiler support. + Copyright (C) 2017-2018 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/>. */ + + +#include <sys/cdefs.h> +#include <sys/asm.h> +#include <sysdep.h> +#include "dl-tls.h" + +#define LOAD_GP \ + ".option push\n\t" \ + ".option norelax\n\t" \ + "la gp, __global_pointer$\n\t" \ + ".option pop\n\t" + +#define UNLOAD_GP + +#define TLS_GD(x) \ + ({ void *__result; \ + asm (LOAD_GP \ + "la.tls.gd %0, " #x "\n\t" \ + UNLOAD_GP \ + : "=r" (__result)); \ + __tls_get_addr (__result); }) + +#define TLS_LD(x) TLS_GD(x) + +#define TLS_IE(x) \ + ({ void *__result; \ + asm (LOAD_GP \ + "la.tls.ie %0, " #x "\n\t" \ + "add %0, %0, tp\n\t" \ + UNLOAD_GP \ + : "=r" (__result)); \ + __result; }) + +#define TLS_LE(x) \ + ({ void *__result; \ + asm (LOAD_GP \ + "lui %0, %%tprel_hi(" #x ")\n\t" \ + "add %0, %0, tp, %%tprel_add(" #x ")\n\t" \ + "addi %0, %0, %%tprel_lo(" #x ")\n\t" \ + UNLOAD_GP \ + : "=r" (__result)); \ + __result; }) |