87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*-
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* Copyright (c) 2000, 2001 Ben Harris
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* Copyright (c) 1996 Scott K. Stevens
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*
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#ifndef _MACHINE_STACK_H_
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#define _MACHINE_STACK_H_
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#define INKERNEL(va) (((vm_offset_t)(va)) >= VM_MIN_KERNEL_ADDRESS)
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#define FR_SCP (0)
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#define FR_RLV (-1)
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#define FR_RSP (-2)
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#define FR_RFP (-3)
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/* The state of the unwind process */
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struct unwind_state {
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uint32_t registers[16];
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uint32_t start_pc;
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uint32_t *insn;
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u_int entries;
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u_int byte;
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uint16_t update_mask;
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};
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/* The register names */
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#define FP 11
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#define SP 13
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#define LR 14
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#define PC 15
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#ifdef _KERNEL
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int unwind_stack_one(struct unwind_state *, int);
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struct linker_file;
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void unwind_module_loaded(struct linker_file *);
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void unwind_module_unloaded(struct linker_file *);
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#ifdef _SYS_PROC_H_
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#include <machine/pcb.h>
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/* Get the current kernel thread stack usage. */
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#define GET_STACK_USAGE(total, used) do { \
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struct thread *td = curthread; \
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(total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
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(used) = td->td_kstack + (total) - (vm_offset_t)&td; \
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} while (0)
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static __inline bool
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kstack_contains(struct thread *td, vm_offset_t va, size_t len)
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{
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return (va >= td->td_kstack && va + len >= va &&
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va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE -
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sizeof(struct pcb));
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}
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#endif /* _SYS_PROC_H_ */
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#endif
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#endif /* !_MACHINE_STACK_H_ */
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