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Diffstat (limited to 'hurd/test-xstate.h')
| -rw-r--r-- | hurd/test-xstate.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/hurd/test-xstate.h b/hurd/test-xstate.h new file mode 100644 index 0000000..a8185dc --- /dev/null +++ b/hurd/test-xstate.h @@ -0,0 +1,40 @@ +/* Helpers to test XSTATE during signal handling + + Copyright (C) 2025 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/>. */ + +#ifndef _TEST_XSTATE_H +#define _TEST_XSTATE_H + +#if defined __x86_64__ || defined __i386__ +#define XSTATE_HELPERS_SUPPORTED 1 +#define XSTATE_BUFFER_SIZE 16 +#define SET_XSTATE(b) do { \ + asm volatile ("movups (%0),%%xmm0" :: "r" (b)); \ + } while (0) + +#define GET_XSTATE(b) do { \ + asm volatile ("movups %%xmm0,(%0)" :: "r" (b)); \ + } while (0) + +#else +#define XSTATE_HELPERS_SUPPORTED 0 +#define XSTATE_BUFFER_SIZE 1 +#define SET_XSTATE(b) +#endif + +#endif /* _TEST_XSTATE_H */ |