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Diffstat (limited to 'core/arch/arm/include/kernel/unwind.h')
| -rw-r--r-- | core/arch/arm/include/kernel/unwind.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/core/arch/arm/include/kernel/unwind.h b/core/arch/arm/include/kernel/unwind.h new file mode 100644 index 0000000..cc5ff5a --- /dev/null +++ b/core/arch/arm/include/kernel/unwind.h @@ -0,0 +1,77 @@ +/*- + * Copyright (c) 2015, Linaro Limited + * Copyright (c) 2000, 2001 Ben Harris + * Copyright (c) 1996 Scott K. Stevens + * + * Mach Operating System + * Copyright (c) 1991,1990 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + * + * $FreeBSD$ + */ + +#ifndef KERNEL_UNWIND +#define KERNEL_UNWIND + +#ifndef ASM +#include <types_ext.h> + +#ifdef ARM32 +/* The state of the unwind process */ +struct unwind_state { + uint32_t registers[16]; + uint32_t start_pc; + uint32_t *insn; + unsigned entries; + unsigned byte; + uint16_t update_mask; +}; +#endif /*ARM32*/ + +#ifdef ARM64 +struct unwind_state { + uint64_t fp; + uint64_t sp; + uint64_t pc; +}; +#endif /*ARM64*/ + +bool unwind_stack(struct unwind_state *state); + +#if defined(CFG_CORE_UNWIND) && (TRACE_LEVEL > 0) +void print_stack(int level); +#else +static inline void print_stack(int level __unused) +{ +} +#endif + +#endif /*ASM*/ + +#ifdef CFG_CORE_UNWIND +#define UNWIND(...) __VA_ARGS__ +#else +#define UNWIND(...) +#endif + +#endif /*KERNEL_UNWIND*/ |