13c90d1eaSRobert Watson /*- 23c90d1eaSRobert Watson * Copyright (c) 2000, 2001 Ben Harris 33c90d1eaSRobert Watson * Copyright (c) 1996 Scott K. Stevens 43c90d1eaSRobert Watson * 53c90d1eaSRobert Watson * Mach Operating System 63c90d1eaSRobert Watson * Copyright (c) 1991,1990 Carnegie Mellon University 73c90d1eaSRobert Watson * All Rights Reserved. 83c90d1eaSRobert Watson * 93c90d1eaSRobert Watson * Permission to use, copy, modify and distribute this software and its 103c90d1eaSRobert Watson * documentation is hereby granted, provided that both the copyright 113c90d1eaSRobert Watson * notice and this permission notice appear in all copies of the 123c90d1eaSRobert Watson * software, derivative works or modified versions, and any portions 133c90d1eaSRobert Watson * thereof, and that both notices appear in supporting documentation. 143c90d1eaSRobert Watson * 153c90d1eaSRobert Watson * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 163c90d1eaSRobert Watson * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 173c90d1eaSRobert Watson * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 183c90d1eaSRobert Watson * 193c90d1eaSRobert Watson * Carnegie Mellon requests users of this software to return to 203c90d1eaSRobert Watson * 213c90d1eaSRobert Watson * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 223c90d1eaSRobert Watson * School of Computer Science 233c90d1eaSRobert Watson * Carnegie Mellon University 243c90d1eaSRobert Watson * Pittsburgh PA 15213-3890 253c90d1eaSRobert Watson * 263c90d1eaSRobert Watson * any improvements or extensions that they make and grant Carnegie the 273c90d1eaSRobert Watson * rights to redistribute these changes. 283c90d1eaSRobert Watson * 293c90d1eaSRobert Watson * $FreeBSD$ 303c90d1eaSRobert Watson */ 313c90d1eaSRobert Watson 323c90d1eaSRobert Watson #ifndef _MACHINE_STACK_H_ 333c90d1eaSRobert Watson #define _MACHINE_STACK_H_ 343c90d1eaSRobert Watson 353c90d1eaSRobert Watson #define INKERNEL(va) (((vm_offset_t)(va)) >= VM_MIN_KERNEL_ADDRESS) 363c90d1eaSRobert Watson 373c90d1eaSRobert Watson #define FR_SCP (0) 383c90d1eaSRobert Watson #define FR_RLV (-1) 393c90d1eaSRobert Watson #define FR_RSP (-2) 403c90d1eaSRobert Watson #define FR_RFP (-3) 413c90d1eaSRobert Watson 426da235a3SAndrew Turner /* The state of the unwind process */ 436da235a3SAndrew Turner struct unwind_state { 446da235a3SAndrew Turner uint32_t registers[16]; 456da235a3SAndrew Turner uint32_t start_pc; 466da235a3SAndrew Turner uint32_t *insn; 476da235a3SAndrew Turner u_int entries; 486da235a3SAndrew Turner u_int byte; 496da235a3SAndrew Turner uint16_t update_mask; 506da235a3SAndrew Turner }; 516da235a3SAndrew Turner 526da235a3SAndrew Turner /* The register names */ 536da235a3SAndrew Turner #define FP 11 546da235a3SAndrew Turner #define SP 13 556da235a3SAndrew Turner #define LR 14 566da235a3SAndrew Turner #define PC 15 576da235a3SAndrew Turner 58b19c9deaSIan Lepore #ifdef _KERNEL 59b19c9deaSIan Lepore 601b23f9b9SAndrew Turner int unwind_stack_one(struct unwind_state *, int); 616da235a3SAndrew Turner 62b19c9deaSIan Lepore struct linker_file; 63b19c9deaSIan Lepore void unwind_module_loaded(struct linker_file *); 64b19c9deaSIan Lepore void unwind_module_unloaded(struct linker_file *); 65b19c9deaSIan Lepore 662555f175SKonstantin Belousov #ifdef _SYS_PROC_H_ 672555f175SKonstantin Belousov 682555f175SKonstantin Belousov #include <machine/pcb.h> 692555f175SKonstantin Belousov 702555f175SKonstantin Belousov /* Get the current kernel thread stack usage. */ 712555f175SKonstantin Belousov #define GET_STACK_USAGE(total, used) do { \ 722555f175SKonstantin Belousov struct thread *td = curthread; \ 732555f175SKonstantin Belousov (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \ 742555f175SKonstantin Belousov (used) = td->td_kstack + (total) - (vm_offset_t)&td; \ 752555f175SKonstantin Belousov } while (0) 762555f175SKonstantin Belousov 772555f175SKonstantin Belousov static __inline bool 782555f175SKonstantin Belousov kstack_contains(struct thread *td, vm_offset_t va, size_t len) 792555f175SKonstantin Belousov { 802555f175SKonstantin Belousov return (va >= td->td_kstack && va + len >= va && 81*83a49712SKonstantin Belousov va + len <= td->td_kstack + td->td_kstack_pages * PAGE_SIZE - 82*83a49712SKonstantin Belousov sizeof(struct pcb)); 832555f175SKonstantin Belousov } 842555f175SKonstantin Belousov #endif /* _SYS_PROC_H_ */ 852555f175SKonstantin Belousov 86b19c9deaSIan Lepore #endif 87b19c9deaSIan Lepore 883c90d1eaSRobert Watson #endif /* !_MACHINE_STACK_H_ */ 89