ngiddings
bacedbea86
The physical memory allocator now uses a buddy allocator instead of a stack. Also moved some of the platform-independent context code to kernel.c.
45 lines
928 B
C
45 lines
928 B
C
#ifndef _QUARK_CONTEXT_H
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#define _QUARK_CONTEXT_H
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#include <stdint.h>
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#if defined __i386__ || defined __x86_64__
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#define DEFAULT_FLAGS 0x3200
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#endif
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/**
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* @brief Stores the context of a particular process. The contents of this
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* struct are platform-specific.
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*
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*/
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struct process_context_t
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{
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#if defined __i386__
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uint32_t gp_registers[8];
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uint32_t ss;
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uint32_t cs;
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uint32_t eip;
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uint32_t flags;
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#elif defined __x86_64__
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uint64_t gp_registers[16];
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uint64_t ss;
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uint64_t cs;
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uint64_t rip;
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uint64_t flags;
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#endif
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};
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void load_context(struct process_context_t *context);
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void set_context_pc(struct process_context_t *context, void *pc);
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void set_context_stack(struct process_context_t *context, void *stack);
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void set_context_flags(struct process_context_t *context, unsigned long flags);
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void set_context_return(struct process_context_t *context, unsigned long value);
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#endif
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