| /*- |
| * 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 __ASSEMBLER__ |
| #include <compiler.h> |
| #include <tee_api_types.h> |
| #include <types_ext.h> |
| |
| /* The state of the unwind process (32-bit mode) */ |
| struct unwind_state_arm32 { |
| uint32_t registers[16]; |
| uint32_t start_pc; |
| vaddr_t insn; |
| unsigned entries; |
| unsigned byte; |
| uint16_t update_mask; |
| }; |
| |
| /* |
| * Unwind a 32-bit user or kernel stack. |
| * @exidx, @exidx_sz: address and size of the binary search index table |
| * (.ARM.exidx section). |
| * @stack, @stack_size: the bottom of the stack and its size, respectively. |
| */ |
| bool unwind_stack_arm32(struct unwind_state_arm32 *state, vaddr_t exidx, |
| size_t exidx_sz, vaddr_t stack, size_t stack_size); |
| |
| #ifdef ARM64 |
| /* The state of the unwind process (64-bit mode) */ |
| struct unwind_state_arm64 { |
| uint64_t fp; |
| uint64_t sp; |
| uint64_t pc; |
| }; |
| |
| /* |
| * Unwind a 64-bit kernel stack. |
| * @stack, @stack_size: the bottom of the stack and its size, respectively. |
| */ |
| bool unwind_stack_arm64(struct unwind_state_arm64 *state, |
| vaddr_t stack, size_t stack_size); |
| #endif /*ARM64*/ |
| |
| #if defined(CFG_UNWIND) && (TRACE_LEVEL > 0) |
| |
| #ifdef ARM64 |
| void print_stack_arm64(int level, struct unwind_state_arm64 *state, |
| vaddr_t stack, size_t stack_size); |
| #endif |
| void print_stack_arm32(int level, struct unwind_state_arm32 *state, |
| vaddr_t exidx, size_t exidx_sz, |
| vaddr_t stack, size_t stack_size); |
| void print_kernel_stack(int level); |
| |
| #else /* defined(CFG_UNWIND) && (TRACE_LEVEL > 0) */ |
| |
| #ifdef ARM64 |
| static inline void print_stack_arm64(int level __unused, |
| struct unwind_state_arm64 *state __unused, |
| vaddr_t stack __unused, |
| size_t stack_size __unused) |
| { |
| } |
| #endif |
| static inline void print_stack_arm32(int level __unused, |
| struct unwind_state_arm32 *state __unused, |
| uaddr_t exidx __unused, |
| size_t exidx_sz __unused, |
| vaddr_t stack __unused, |
| size_t stack_size __unused) |
| { |
| } |
| static inline void print_kernel_stack(int level __unused) |
| { |
| } |
| |
| #endif /* defined(CFG_UNWIND) && (TRACE_LEVEL > 0) */ |
| |
| #ifdef CFG_UNWIND |
| TEE_Result relocate_exidx(void *exidx, size_t exidx_sz, int32_t offset); |
| /* Get current call stack as an array allocated on the heap */ |
| vaddr_t *unw_get_kernel_stack(void); |
| #else |
| static inline TEE_Result relocate_exidx(void *exidx __unused, |
| size_t exidx_sz __unused, |
| int32_t offset __unused) |
| { |
| return TEE_ERROR_NOT_SUPPORTED; |
| } |
| static inline void *unw_get_kernel_stack(void) |
| { |
| return NULL; |
| } |
| #endif /* CFG_UNWIND */ |
| |
| #endif /*__ASSEMBLER__*/ |
| |
| #ifdef CFG_UNWIND |
| #define UNWIND(...) __VA_ARGS__ |
| #else |
| #define UNWIND(...) |
| #endif |
| |
| #endif /*KERNEL_UNWIND*/ |