| 1 | /* Internal support stuff for complete soft float. |
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| 2 | Copyright (C) 2002-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library. If not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #if defined __NO_FPRS__ && !defined _SOFT_FLOAT |
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| 20 | |
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| 21 | # include <fenv_libc.h> |
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| 22 | |
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| 23 | #else |
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| 24 | |
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| 25 | # include <fenv.h> |
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| 26 | |
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| 27 | typedef union |
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| 28 | { |
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| 29 | fenv_t fenv; |
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| 30 | unsigned int l[2]; |
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| 31 | } fenv_union_t; |
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| 32 | |
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| 33 | #endif |
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| 34 | |
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| 35 | extern __thread int __sim_exceptions_thread attribute_tls_model_ie; |
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| 36 | libc_hidden_tls_proto (__sim_exceptions_thread, tls_model ("initial-exec" )); |
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| 37 | extern __thread int __sim_disabled_exceptions_thread attribute_tls_model_ie; |
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| 38 | libc_hidden_tls_proto (__sim_disabled_exceptions_thread, |
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| 39 | tls_model ("initial-exec" )); |
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| 40 | extern __thread int __sim_round_mode_thread attribute_tls_model_ie; |
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| 41 | libc_hidden_tls_proto (__sim_round_mode_thread, tls_model ("initial-exec" )); |
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| 42 | |
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| 43 | /* These variables were formerly global, so there are compat symbols |
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| 44 | for global versions as well. */ |
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| 45 | |
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| 46 | #include <shlib-compat.h> |
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| 47 | #define SIM_GLOBAL_COMPAT SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_19) |
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| 48 | #if SIM_GLOBAL_COMPAT |
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| 49 | extern int __sim_exceptions_global; |
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| 50 | libc_hidden_proto (__sim_exceptions_global); |
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| 51 | extern int __sim_disabled_exceptions_global ; |
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| 52 | libc_hidden_proto (__sim_disabled_exceptions_global); |
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| 53 | extern int __sim_round_mode_global; |
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| 54 | libc_hidden_proto (__sim_round_mode_global); |
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| 55 | # define SIM_COMPAT_SYMBOL(GLOBAL_NAME, NAME) \ |
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| 56 | compat_symbol (libc, GLOBAL_NAME, NAME, GLIBC_2_3_2) |
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| 57 | # define SIM_SET_GLOBAL(GLOBAL_VAR, THREAD_VAR) ((GLOBAL_VAR) = (THREAD_VAR)) |
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| 58 | #else |
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| 59 | # define SIM_SET_GLOBAL(GLOBAL_VAR, THREAD_VAR) ((void) 0) |
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| 60 | #endif |
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| 61 | |
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| 62 | extern void __simulate_exceptions (int x) attribute_hidden; |
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| 63 | |
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