From 8b68f956154b43b2b2fe2b8783ae6f23bf90d47b Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Wed, 13 Mar 2024 21:31:25 -0400 Subject: kernel: proc: Add Process Control Block structure This is to be implemented per arch and has arch specific thread information. For example, on the AMD64 port, this can contain things like an x87 FPU save area Signed-off-by: Ian Moffett --- sys/include/arch/amd64/pcb.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 sys/include/arch/amd64/pcb.h (limited to 'sys/include/arch/amd64') diff --git a/sys/include/arch/amd64/pcb.h b/sys/include/arch/amd64/pcb.h new file mode 100644 index 0000000..0e0aab8 --- /dev/null +++ b/sys/include/arch/amd64/pcb.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _AMD64_PCB_H_ +#define _AMD64_PCB_H_ + +#include + +struct pcb { + uint8_t *fpu_state; +}; + +#endif /* !_AMD64_PCB_H_ */ -- cgit v1.2.3