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03e6fe7e0a
Make x86_xcr0 private to i387-fp.cc and use i387_set_xsave_mask to set the value instead. Add a static global instance of x86_xsave_layout and initialize it in the new function as well to be used in a future commit to parse XSAVE extended state regions. Update the Linux port to use this function rather than setting x86_xcr0 directly. In the case that XML is not supported, don't bother setting x86_xcr0 to the default value but just omit the call to i387_set_xsave_mask as i387-fp.cc defaults to the SSE case used for non-XML. In addition, use x86_xsave_length to determine the size of the XSAVE register set via CPUID. Approved-By: Simon Marchi <simon.marchi@efficios.com>
36 lines
1.4 KiB
C
36 lines
1.4 KiB
C
/* i387-specific utility functions, for the remote server for GDB.
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Copyright (C) 2000-2023 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDBSERVER_I387_FP_H
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#define GDBSERVER_I387_FP_H
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void i387_cache_to_fsave (struct regcache *regcache, void *buf);
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void i387_fsave_to_cache (struct regcache *regcache, const void *buf);
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void i387_cache_to_fxsave (struct regcache *regcache, void *buf);
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void i387_fxsave_to_cache (struct regcache *regcache, const void *buf);
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void i387_cache_to_xsave (struct regcache *regcache, void *buf);
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void i387_xsave_to_cache (struct regcache *regcache, const void *buf);
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/* Set the XSAVE mask and fetch the XSAVE layout via CPUID. */
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void i387_set_xsave_mask (uint64_t xcr0, int len);
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#endif /* GDBSERVER_I387_FP_H */
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