blob: f252957252abf08539e320c1a969501a78432d1c [file] [log] [blame]
/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#define THREAD_INFO_UNIMPLEMENTED 0xffffffff
enum {
THREAD_INFO_OFFSET_VERSION,
THREAD_INFO_OFFSET_K_CURR_THREAD,
THREAD_INFO_OFFSET_K_THREADS,
THREAD_INFO_OFFSET_T_ENTRY,
THREAD_INFO_OFFSET_T_NEXT_THREAD,
THREAD_INFO_OFFSET_T_STATE,
THREAD_INFO_OFFSET_T_USER_OPTIONS,
THREAD_INFO_OFFSET_T_PRIO,
THREAD_INFO_OFFSET_T_STACK_PTR,
THREAD_INFO_OFFSET_T_NAME,
THREAD_INFO_OFFSET_T_ARCH,
THREAD_INFO_OFFSET_T_PREEMPT_FLOAT,
THREAD_INFO_OFFSET_T_COOP_FLOAT,
THREAD_INFO_OFFSET_T_ARM_EXC_RETURN,
};
#if CONFIG_MP_MAX_NUM_CPUS > 1
#error "This code doesn't work properly with multiple CPUs enabled"
#endif
/* Forward-compatibility notes: 1) Only append items to this table; otherwise
* debugger plugin versions that expect fewer items will read garbage values.
* 2) Avoid incompatible changes that affect the interpretation of existing
* items. But if you have to do them, increment THREAD_INFO_OFFSET_VERSION
* and submit a patch for debugger plugins to deal with both the old and new
* scheme.
* Only version 1 is backward compatible to version 0.
*/
__attribute__((used, section(".dbg_thread_info")))
size_t _kernel_thread_info_offsets[] = {
/* Version 0 starts */
[THREAD_INFO_OFFSET_VERSION] = 1,
[THREAD_INFO_OFFSET_K_CURR_THREAD] = offsetof(struct _cpu, current),
[THREAD_INFO_OFFSET_K_THREADS] = offsetof(struct z_kernel, threads),
[THREAD_INFO_OFFSET_T_ENTRY] = offsetof(struct k_thread, entry),
[THREAD_INFO_OFFSET_T_NEXT_THREAD] = offsetof(struct k_thread,
next_thread),
[THREAD_INFO_OFFSET_T_STATE] = offsetof(struct _thread_base,
thread_state),
[THREAD_INFO_OFFSET_T_USER_OPTIONS] = offsetof(struct _thread_base,
user_options),
[THREAD_INFO_OFFSET_T_PRIO] = offsetof(struct _thread_base, prio),
#if defined(CONFIG_ARM64)
/* We are assuming that the SP of interest is SP_EL1 */
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.sp_elx),
#elif defined(CONFIG_ARM)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.psp),
#elif defined(CONFIG_ARC)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.sp),
#elif defined(CONFIG_X86)
#if defined(CONFIG_X86_64)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.rsp),
#else
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.esp),
#endif
#elif defined(CONFIG_MIPS)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.sp),
#elif defined(CONFIG_NIOS2)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.sp),
#elif defined(CONFIG_RISCV)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.sp),
#elif defined(CONFIG_SPARC)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.o6),
#elif defined(CONFIG_ARCH_POSIX)
[THREAD_INFO_OFFSET_T_STACK_PTR] = offsetof(struct k_thread,
callee_saved.thread_status),
#elif defined(CONFIG_XTENSA)
/* Xtensa does not store stack pointers inside thread objects.
* The registers are saved in thread stack where there is
* no fixed location for this to work. So mark this as
* unimplemented to avoid the #warning below.
*/
[THREAD_INFO_OFFSET_T_STACK_PTR] = THREAD_INFO_UNIMPLEMENTED,
#else
/* Use a special value so that OpenOCD knows that obtaining the stack
* pointer is not possible on this particular architecture.
*/
#warning Please define THREAD_INFO_OFFSET_T_STACK_PTR for this architecture
[THREAD_INFO_OFFSET_T_STACK_PTR] = THREAD_INFO_UNIMPLEMENTED,
#endif
/* Version 0 ends */
[THREAD_INFO_OFFSET_T_NAME] = offsetof(struct k_thread, name),
[THREAD_INFO_OFFSET_T_ARCH] = offsetof(struct k_thread, arch),
#if defined(CONFIG_FPU) && defined(CONFIG_FPU_SHARING) && defined(CONFIG_ARM)
[THREAD_INFO_OFFSET_T_PREEMPT_FLOAT] = offsetof(struct _thread_arch,
preempt_float),
[THREAD_INFO_OFFSET_T_COOP_FLOAT] = THREAD_INFO_UNIMPLEMENTED,
#elif defined(CONFIG_FPU) && defined(CONFIG_X86)
#if defined(CONFIG_X86_64)
[THREAD_INFO_OFFSET_T_PREEMPT_FLOAT] = offsetof(struct _thread_arch,
sse),
#else
[THREAD_INFO_OFFSET_T_PREEMPT_FLOAT] = offsetof(struct _thread_arch,
preempFloatReg),
#endif
[THREAD_INFO_OFFSET_T_COOP_FLOAT] = THREAD_INFO_UNIMPLEMENTED,
#else
[THREAD_INFO_OFFSET_T_PREEMPT_FLOAT] = THREAD_INFO_UNIMPLEMENTED,
[THREAD_INFO_OFFSET_T_COOP_FLOAT] = THREAD_INFO_UNIMPLEMENTED,
#endif
/* Version is still 1, but existence of following elements must be
* checked with _kernel_thread_info_num_offsets.
*/
#ifdef CONFIG_ARM_STORE_EXC_RETURN
/* ARM overwrites the LSB of the Link Register on the stack when
* this option is enabled. If this offset is not THREAD_INFO_UNIMPLEMENTED
* then the LSB needs to be restored from mode_exc_return.
*/
[THREAD_INFO_OFFSET_T_ARM_EXC_RETURN] = offsetof(struct _thread_arch,
mode_exc_return),
#else
[THREAD_INFO_OFFSET_T_ARM_EXC_RETURN] = THREAD_INFO_UNIMPLEMENTED,
#endif /* CONFIG_ARM_STORE_EXC_RETURN */
};
extern size_t __attribute__((alias("_kernel_thread_info_offsets")))
_kernel_openocd_offsets;
__attribute__((used, section(".dbg_thread_info")))
size_t _kernel_thread_info_num_offsets = ARRAY_SIZE(_kernel_thread_info_offsets);
extern size_t __attribute__((alias("_kernel_thread_info_num_offsets")))
_kernel_openocd_num_offsets;
__attribute__((used, section(".dbg_thread_info")))
uint8_t _kernel_thread_info_size_t_size = (uint8_t)sizeof(size_t);
extern uint8_t __attribute__((alias("_kernel_thread_info_size_t_size")))
_kernel_openocd_size_t_size;