arch/arm: move the backtrace implement to common code
Signed-off-by: chao.an <anchao@xiaomi.com>
This commit is contained in:
chao.an
Xiang Xiao
parent
1e2f067181
commit
579738c8fa
@ -1,295 +0,0 @@
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/****************************************************************************
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* arch/arm/src/armv6-m/arm_backtrace.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include "sched/sched.h"
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#include "arm_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Macro and definitions for simple decoding of instuctions.
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* To check an instruction, it is ANDed with the IMASK_ and
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* the result is compared with the IOP_. The macro INSTR_IS
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* does this and returns !0 to indicate a match.
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*/
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#define INSTR_IS(i, o) (((i) & (IMASK_##o)) == (IOP_##o))
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#define IMASK_T_BLX 0xff80 /* blx */
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#define IOP_T_BLX 0x4780
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#define IMASK_T_BL 0xf800 /* blx */
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#define IOP_T_BL 0xf000
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static FAR void **g_backtrace_code_regions;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: in_code_region
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*
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* Description:
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* in_code_region() check if the program counter is in the program
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* section, program counter should always be within the view of executable
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* sections.
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*
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* Input Parameters:
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* pc - Program counter address
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*
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* Returned Value:
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* A boolean value: true the counter is vaild
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*
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****************************************************************************/
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#ifdef CONFIG_MM_KASAN
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__attribute__((no_sanitize_address))
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#endif
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static bool in_code_region(FAR void *pc)
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{
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int i = 0;
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if ((uintptr_t)pc >= (uintptr_t)_START_TEXT &&
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(uintptr_t)pc < (uintptr_t)_END_TEXT)
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{
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return true;
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}
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if (g_backtrace_code_regions)
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{
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while (g_backtrace_code_regions[i] &&
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(g_backtrace_code_regions[i] !=
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g_backtrace_code_regions[i + 1]))
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{
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if (g_backtrace_code_regions[i] <= pc &&
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g_backtrace_code_regions[i + 1] > pc)
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{
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return true;
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}
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i += 2;
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}
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}
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return false;
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}
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/****************************************************************************
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* Name: backtrace_branch
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*
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* Description:
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* backtrace() parsing the return address through branch instruction
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*
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****************************************************************************/
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#ifdef CONFIG_MM_KASAN
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__attribute__((no_sanitize_address))
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#endif
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static int backtrace_branch(FAR void *limit, FAR void *sp,
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FAR void **buffer, int size)
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{
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uint16_t ins16;
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uint32_t addr;
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int i = 0;
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for (; i < size && sp < limit; sp += sizeof(uint32_t))
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{
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addr = *(FAR uint32_t *)sp;
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if (!in_code_region(addr))
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{
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continue;
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}
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addr = (addr & ~1) - 2;
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ins16 = *(FAR uint16_t *)addr;
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if (INSTR_IS(ins16, T_BLX))
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{
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buffer[i++] = addr;
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}
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/* BL Instruction
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* OFFSET: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
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* VALUE : 1 1 1 1 0 - - - - - - - - - - -
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* OFFSET: 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
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* VALUE : 1 1 - 1 - - - - - - - - - - - -
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*/
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else if ((ins16 & 0xd000) == 0xd000)
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{
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addr -= 2;
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ins16 = *(FAR uint16_t *)addr;
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if (INSTR_IS(ins16, T_BL))
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{
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buffer[i++] = addr;
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}
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}
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}
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return i;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: arm_backtrace_init_code_regions
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*
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* Description:
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* The up call arm_backtrace_init_code_regions() will set the start
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* and end addresses of the customized program sections, this method
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* will help the different boards to configure the current text
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* sections for some complicate platfroms
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*
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* Input Parameters:
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* regions The start and end address of the text segment
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* This interface supports the input of multiple
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* groups of sections, Each set of the sections
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* must be a pair, the end of the area must specify
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* two NULL porint, e.g :
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*
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* static void *g_code_regions[] =
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* {
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* _START_TEXT, _END_TEXT,
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* _START2_TEXT, _END2_TEXT,
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* _START3_TEXT, _END3_TEXT,
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* NULL, NULL,
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* };
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*
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* arm_backtrace_init_code_regions(g_code_regions);
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*
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****************************************************************************/
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#ifdef CONFIG_MM_KASAN
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__attribute__((no_sanitize_address))
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#endif
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void arm_backtrace_init_code_regions(FAR void **regions)
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{
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g_backtrace_code_regions = regions;
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}
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/****************************************************************************
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* Name: up_backtrace
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*
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* Description:
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* up_backtrace() returns a backtrace for the TCB, in the array
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* pointed to by buffer. A backtrace is the series of currently active
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* function calls for the program. Each item in the array pointed to by
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* buffer is of type void *, and is the return address from the
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* corresponding stack frame. The size argument specifies the maximum
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* number of addresses that can be stored in buffer. If the backtrace is
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* larger than size, then the addresses corresponding to the size most
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* recent function calls are returned; to obtain the complete backtrace,
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* make sure that buffer and size are large enough.
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*
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* Input Parameters:
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* tcb - Address of the task's TCB
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* buffer - Return address from the corresponding stack frame
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* size - Maximum number of addresses that can be stored in buffer
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*
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* Returned Value:
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* up_backtrace() returns the number of addresses returned in buffer
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*
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****************************************************************************/
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#ifdef CONFIG_MM_KASAN
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__attribute__((no_sanitize_address))
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#endif
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int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
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{
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FAR struct tcb_s *rtcb = running_task();
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irqstate_t flags;
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FAR void *sp;
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int ret;
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if (size <= 0 || !buffer)
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{
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return 0;
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}
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if (tcb == NULL)
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{
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tcb = rtcb;
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}
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if (tcb == rtcb)
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{
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sp = (FAR void *)up_getsp();
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if (up_interrupt_context())
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{
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#if CONFIG_ARCH_INTERRUPTSTACK > 7
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ret = backtrace_branch(
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# ifdef CONFIG_SMP
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(uint32_t)arm_intstack_alloc()
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# else
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(uint32_t)&g_intstackalloc
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# endif
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+ (CONFIG_ARCH_INTERRUPTSTACK & ~7), sp,
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buffer, size);
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if (ret < size)
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{
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sp = (FAR void *)CURRENT_REGS[REG_SP];
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ret += backtrace_branch(rtcb->stack_base_ptr +
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rtcb->adj_stack_size, sp,
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&buffer[ret], size - ret);
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}
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#else
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sp = (FAR void *)CURRENT_REGS[REG_SP];
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ret = backtrace_branch(rtcb->stack_base_ptr +
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rtcb->adj_stack_size, sp,
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buffer, size);
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#endif
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}
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else
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{
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ret = backtrace_branch(rtcb->stack_base_ptr +
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rtcb->adj_stack_size, sp,
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buffer, size);
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}
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}
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else
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{
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flags = enter_critical_section();
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ret = backtrace_branch(tcb->stack_base_ptr +
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tcb->adj_stack_size,
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(FAR void *)tcb->xcp.regs[REG_SP],
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buffer, size);
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leave_critical_section(flags);
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}
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return ret;
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}
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@ -1,162 +0,0 @@
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/****************************************************************************
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* arch/arm/src/armv7-a/arm_backtrace.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include "sched/sched.h"
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#include "arm_internal.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: backtrace
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*
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* Description:
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* backtrace() parsing the return address through frame pointer
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*
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****************************************************************************/
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static int backtrace(FAR uintptr_t *base, FAR uintptr_t *limit,
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FAR uintptr_t *fp, FAR uintptr_t *pc,
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FAR void **buffer, int size)
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{
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int i = 0;
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if (pc)
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{
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buffer[i++] = pc;
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}
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for (; i < size; fp = (FAR uintptr_t *)*(fp - 1), i++)
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{
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if (fp > limit || fp < base || *fp == 0)
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{
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break;
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}
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buffer[i] = (FAR void *)*fp;
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}
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return i;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_backtrace
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*
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* Description:
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* up_backtrace() returns a backtrace for the TCB, in the array
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* pointed to by buffer. A backtrace is the series of currently active
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* function calls for the program. Each item in the array pointed to by
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* buffer is of type void *, and is the return address from the
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* corresponding stack frame. The size argument specifies the maximum
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* number of addresses that can be stored in buffer. If the backtrace is
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* larger than size, then the addresses corresponding to the size most
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* recent function calls are returned; to obtain the complete backtrace,
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* make sure that buffer and size are large enough.
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*
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* Input Parameters:
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* tcb - Address of the task's TCB
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* buffer - Return address from the corresponding stack frame
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* size - Maximum number of addresses that can be stored in buffer
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*
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* Returned Value:
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* up_backtrace() returns the number of addresses returned in buffer
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*
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****************************************************************************/
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int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
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{
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FAR struct tcb_s *rtcb = running_task();
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#if CONFIG_ARCH_INTERRUPTSTACK > 7
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FAR void *istacklimit;
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#endif
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irqstate_t flags;
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int ret;
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if (size <= 0 || !buffer)
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{
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return 0;
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}
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if (tcb == NULL || tcb == rtcb)
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{
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if (up_interrupt_context())
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{
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#if CONFIG_ARCH_INTERRUPTSTACK > 7
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# ifdef CONFIG_SMP
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istacklimit = arm_intstack_top();
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# else
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istacklimit = &g_intstacktop;
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# endif /* CONFIG_SMP */
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ret = backtrace(istacklimit - (CONFIG_ARCH_INTERRUPTSTACK & ~7),
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istacklimit,
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(FAR void *)__builtin_frame_address(0),
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NULL, buffer, size);
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#else
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ret = backtrace(rtcb->stack_base_ptr,
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rtcb->stack_base_ptr + rtcb->adj_stack_size,
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(FAR void *)__builtin_frame_address(0),
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NULL, buffer, size);
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#endif /* CONFIG_ARCH_INTERRUPTSTACK > 7 */
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if (ret < size)
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{
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ret += backtrace(rtcb->stack_base_ptr,
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rtcb->stack_base_ptr + rtcb->adj_stack_size,
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(FAR void *)CURRENT_REGS[REG_FP],
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(FAR void *)CURRENT_REGS[REG_PC],
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&buffer[ret], size - ret);
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}
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}
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else
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{
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ret = backtrace(rtcb->stack_base_ptr,
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rtcb->stack_base_ptr + rtcb->adj_stack_size,
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(FAR void *)__builtin_frame_address(0),
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NULL, buffer, size);
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}
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}
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else
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{
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flags = enter_critical_section();
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ret = backtrace(tcb->stack_base_ptr,
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tcb->stack_base_ptr + tcb->adj_stack_size,
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(FAR void *)tcb->xcp.regs[REG_FP],
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(FAR void *)tcb->xcp.regs[REG_PC],
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buffer, size);
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leave_critical_section(flags);
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}
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return ret;
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}
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@ -1,295 +0,0 @@
|
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/****************************************************************************
|
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* arch/arm/src/armv7-m/arm_backtrace.c
|
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*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
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|
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#include <nuttx/arch.h>
|
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|
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#include "sched/sched.h"
|
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|
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#include "arm_internal.h"
|
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|
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/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Macro and definitions for simple decoding of instuctions.
|
||||
* To check an instruction, it is ANDed with the IMASK_ and
|
||||
* the result is compared with the IOP_. The macro INSTR_IS
|
||||
* does this and returns !0 to indicate a match.
|
||||
*/
|
||||
|
||||
#define INSTR_IS(i, o) (((i) & (IMASK_##o)) == (IOP_##o))
|
||||
|
||||
#define IMASK_T_BLX 0xff80 /* blx */
|
||||
#define IOP_T_BLX 0x4780
|
||||
|
||||
#define IMASK_T_BL 0xf800 /* blx */
|
||||
#define IOP_T_BL 0xf000
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
static FAR void **g_backtrace_code_regions;
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: in_code_region
|
||||
*
|
||||
* Description:
|
||||
* in_code_region() check if the program counter is in the program
|
||||
* section, program counter should always be within the view of executable
|
||||
* sections.
|
||||
*
|
||||
* Input Parameters:
|
||||
* pc - Program counter address
|
||||
*
|
||||
* Returned Value:
|
||||
* A boolean value: true the counter is vaild
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
static bool in_code_region(FAR void *pc)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
if ((uintptr_t)pc >= (uintptr_t)_START_TEXT &&
|
||||
(uintptr_t)pc < (uintptr_t)_END_TEXT)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
if (g_backtrace_code_regions)
|
||||
{
|
||||
while (g_backtrace_code_regions[i] &&
|
||||
(g_backtrace_code_regions[i] !=
|
||||
g_backtrace_code_regions[i + 1]))
|
||||
{
|
||||
if (g_backtrace_code_regions[i] <= pc &&
|
||||
g_backtrace_code_regions[i + 1] > pc)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
i += 2;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: backtrace_branch
|
||||
*
|
||||
* Description:
|
||||
* backtrace() parsing the return address through branch instruction
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
static int backtrace_branch(FAR void *limit, FAR void *sp,
|
||||
FAR void **buffer, int size)
|
||||
{
|
||||
uint16_t ins16;
|
||||
uint32_t addr;
|
||||
int i = 0;
|
||||
|
||||
for (; i < size && sp < limit; sp += sizeof(uint32_t))
|
||||
{
|
||||
addr = *(FAR uint32_t *)sp;
|
||||
if (!in_code_region(addr))
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
addr = (addr & ~1) - 2;
|
||||
ins16 = *(FAR uint16_t *)addr;
|
||||
if (INSTR_IS(ins16, T_BLX))
|
||||
{
|
||||
buffer[i++] = addr;
|
||||
}
|
||||
|
||||
/* BL Instruction
|
||||
* OFFSET: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
|
||||
* VALUE : 1 1 1 1 0 - - - - - - - - - - -
|
||||
* OFFSET: 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
|
||||
* VALUE : 1 1 - 1 - - - - - - - - - - - -
|
||||
*/
|
||||
|
||||
else if ((ins16 & 0xd000) == 0xd000)
|
||||
{
|
||||
addr -= 2;
|
||||
ins16 = *(FAR uint16_t *)addr;
|
||||
if (INSTR_IS(ins16, T_BL))
|
||||
{
|
||||
buffer[i++] = addr;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: arm_backtrace_init_code_regions
|
||||
*
|
||||
* Description:
|
||||
* The up call arm_backtrace_init_code_regions() will set the start
|
||||
* and end addresses of the customized program sections, this method
|
||||
* will help the different boards to configure the current text
|
||||
* sections for some complicate platfroms
|
||||
*
|
||||
* Input Parameters:
|
||||
* regions The start and end address of the text segment
|
||||
* This interface supports the input of multiple
|
||||
* groups of sections, Each set of the sections
|
||||
* must be a pair, the end of the area must specify
|
||||
* two NULL porint, e.g :
|
||||
*
|
||||
* static void *g_code_regions[] =
|
||||
* {
|
||||
* _START_TEXT, _END_TEXT,
|
||||
* _START2_TEXT, _END2_TEXT,
|
||||
* _START3_TEXT, _END3_TEXT,
|
||||
* NULL, NULL,
|
||||
* };
|
||||
*
|
||||
* arm_backtrace_init_code_regions(g_code_regions);
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
void arm_backtrace_init_code_regions(FAR void **regions)
|
||||
{
|
||||
g_backtrace_code_regions = regions;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_backtrace
|
||||
*
|
||||
* Description:
|
||||
* up_backtrace() returns a backtrace for the TCB, in the array
|
||||
* pointed to by buffer. A backtrace is the series of currently active
|
||||
* function calls for the program. Each item in the array pointed to by
|
||||
* buffer is of type void *, and is the return address from the
|
||||
* corresponding stack frame. The size argument specifies the maximum
|
||||
* number of addresses that can be stored in buffer. If the backtrace is
|
||||
* larger than size, then the addresses corresponding to the size most
|
||||
* recent function calls are returned; to obtain the complete backtrace,
|
||||
* make sure that buffer and size are large enough.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tcb - Address of the task's TCB
|
||||
* buffer - Return address from the corresponding stack frame
|
||||
* size - Maximum number of addresses that can be stored in buffer
|
||||
*
|
||||
* Returned Value:
|
||||
* up_backtrace() returns the number of addresses returned in buffer
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
|
||||
{
|
||||
FAR struct tcb_s *rtcb = running_task();
|
||||
irqstate_t flags;
|
||||
FAR void *sp;
|
||||
int ret;
|
||||
|
||||
if (size <= 0 || !buffer)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (tcb == NULL)
|
||||
{
|
||||
tcb = rtcb;
|
||||
}
|
||||
|
||||
if (tcb == rtcb)
|
||||
{
|
||||
sp = (FAR void *)up_getsp();
|
||||
if (up_interrupt_context())
|
||||
{
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 7
|
||||
ret = backtrace_branch(
|
||||
# ifdef CONFIG_SMP
|
||||
(uint32_t)arm_intstack_alloc()
|
||||
# else
|
||||
(uint32_t)&g_intstackalloc
|
||||
# endif
|
||||
+ (CONFIG_ARCH_INTERRUPTSTACK & ~7), sp,
|
||||
buffer, size);
|
||||
if (ret < size)
|
||||
{
|
||||
sp = (FAR void *)CURRENT_REGS[REG_SP];
|
||||
ret += backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
&buffer[ret], size - ret);
|
||||
}
|
||||
#else
|
||||
sp = (FAR void *)CURRENT_REGS[REG_SP];
|
||||
ret = backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
buffer, size);
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{
|
||||
ret = backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
buffer, size);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
flags = enter_critical_section();
|
||||
|
||||
ret = backtrace_branch(tcb->stack_base_ptr +
|
||||
tcb->adj_stack_size,
|
||||
(FAR void *)tcb->xcp.regs[REG_SP],
|
||||
buffer, size);
|
||||
|
||||
leave_critical_section(flags);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -1,162 +0,0 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/armv7-r/arm_backtrace.c
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
#include "sched/sched.h"
|
||||
|
||||
#include "arm_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: backtrace
|
||||
*
|
||||
* Description:
|
||||
* backtrace() parsing the return address through frame pointer
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
static int backtrace(FAR uintptr_t *base, FAR uintptr_t *limit,
|
||||
FAR uintptr_t *fp, FAR uintptr_t *pc,
|
||||
FAR void **buffer, int size)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
if (pc)
|
||||
{
|
||||
buffer[i++] = pc;
|
||||
}
|
||||
|
||||
for (; i < size; fp = (FAR uintptr_t *)*(fp - 1), i++)
|
||||
{
|
||||
if (fp > limit || fp < base || *fp == 0)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
buffer[i] = (FAR void *)*fp;
|
||||
}
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_backtrace
|
||||
*
|
||||
* Description:
|
||||
* up_backtrace() returns a backtrace for the TCB, in the array
|
||||
* pointed to by buffer. A backtrace is the series of currently active
|
||||
* function calls for the program. Each item in the array pointed to by
|
||||
* buffer is of type void *, and is the return address from the
|
||||
* corresponding stack frame. The size argument specifies the maximum
|
||||
* number of addresses that can be stored in buffer. If the backtrace is
|
||||
* larger than size, then the addresses corresponding to the size most
|
||||
* recent function calls are returned; to obtain the complete backtrace,
|
||||
* make sure that buffer and size are large enough.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tcb - Address of the task's TCB
|
||||
* buffer - Return address from the corresponding stack frame
|
||||
* size - Maximum number of addresses that can be stored in buffer
|
||||
*
|
||||
* Returned Value:
|
||||
* up_backtrace() returns the number of addresses returned in buffer
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
|
||||
{
|
||||
FAR struct tcb_s *rtcb = running_task();
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 7
|
||||
FAR void *istacklimit;
|
||||
#endif
|
||||
irqstate_t flags;
|
||||
int ret;
|
||||
|
||||
if (size <= 0 || !buffer)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (tcb == NULL || tcb == rtcb)
|
||||
{
|
||||
if (up_interrupt_context())
|
||||
{
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 7
|
||||
# ifdef CONFIG_SMP
|
||||
istacklimit = arm_intstack_top();
|
||||
# else
|
||||
istacklimit = &g_intstacktop;
|
||||
# endif /* CONFIG_SMP */
|
||||
ret = backtrace(istacklimit - (CONFIG_ARCH_INTERRUPTSTACK & ~7),
|
||||
istacklimit,
|
||||
(FAR void *)__builtin_frame_address(0),
|
||||
NULL, buffer, size);
|
||||
#else
|
||||
ret = backtrace(rtcb->stack_base_ptr,
|
||||
rtcb->stack_base_ptr + rtcb->adj_stack_size,
|
||||
(FAR void *)__builtin_frame_address(0),
|
||||
NULL, buffer, size);
|
||||
#endif /* CONFIG_ARCH_INTERRUPTSTACK > 7 */
|
||||
if (ret < size)
|
||||
{
|
||||
ret += backtrace(rtcb->stack_base_ptr,
|
||||
rtcb->stack_base_ptr + rtcb->adj_stack_size,
|
||||
(FAR void *)CURRENT_REGS[REG_FP],
|
||||
(FAR void *)CURRENT_REGS[REG_PC],
|
||||
&buffer[ret], size - ret);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
ret = backtrace(rtcb->stack_base_ptr,
|
||||
rtcb->stack_base_ptr + rtcb->adj_stack_size,
|
||||
(FAR void *)__builtin_frame_address(0),
|
||||
NULL, buffer, size);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
flags = enter_critical_section();
|
||||
|
||||
ret = backtrace(tcb->stack_base_ptr,
|
||||
tcb->stack_base_ptr + tcb->adj_stack_size,
|
||||
(FAR void *)tcb->xcp.regs[REG_FP],
|
||||
(FAR void *)tcb->xcp.regs[REG_PC],
|
||||
buffer, size);
|
||||
|
||||
leave_critical_section(flags);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -1,5 +1,5 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/arm/arm_backtrace.c
|
||||
* arch/arm/src/common/arm_backtrace_fp.c
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
@ -23,17 +23,19 @@
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
#include "sched/sched.h"
|
||||
|
||||
#include "arm_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_THUMB)
|
||||
|
||||
/****************************************************************************
|
||||
* Name: backtrace
|
||||
*
|
||||
@ -42,6 +44,9 @@
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
static int backtrace(FAR uintptr_t *base, FAR uintptr_t *limit,
|
||||
FAR uintptr_t *fp, FAR uintptr_t *pc,
|
||||
FAR void **buffer, int size)
|
||||
@ -94,6 +99,9 @@ static int backtrace(FAR uintptr_t *base, FAR uintptr_t *limit,
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
|
||||
{
|
||||
FAR struct tcb_s *rtcb = running_task();
|
||||
@ -160,3 +168,4 @@ int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif /* CONFIG_FRAME_POINTER && !CONFIG_ARM_THUMB */
|
||||
@ -1,5 +1,5 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/armv8-m/arm_backtrace.c
|
||||
* arch/arm/src/common/arm_backtrace_thumb.c
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
@ -34,6 +34,8 @@
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARM_THUMB
|
||||
|
||||
/* Macro and definitions for simple decoding of instuctions.
|
||||
* To check an instruction, it is ANDed with the IMASK_ and
|
||||
* the result is compared with the IOP_. The macro INSTR_IS
|
||||
@ -42,12 +44,38 @@
|
||||
|
||||
#define INSTR_IS(i, o) (((i) & (IMASK_##o)) == (IOP_##o))
|
||||
|
||||
#define IMASK_T_STMDB 0xfffff000 /* stmdb sp!,{..lr} */
|
||||
#define IOP_T_STMDB 0xe92d4000
|
||||
|
||||
#define IMASK_T_PUSH_LO 0xff00 /* push {reglist} (not LR) */
|
||||
#define IOP_T_PUSH_LO 0xb400
|
||||
|
||||
#define IMASK_T_PUSH 0xff00 /* push {reglist} (inc LR) */
|
||||
#define IOP_T_PUSH 0xb500
|
||||
|
||||
#define IMASK_T_VPUSH_16 0xffbf8f00 /* vpush d */
|
||||
#define IOP_T_VPUSH_16 0xed2d8b00
|
||||
|
||||
#define IMASK_T_VPUSH_8 0xffbf8f00 /* vpush s */
|
||||
#define IOP_T_VPUSH_8 0xed2d8a00
|
||||
|
||||
#define IMASK_T_SUB_SP_16 0xff80 /* sub sp, # */
|
||||
#define IOP_T_SUB_SP_16 0xb080
|
||||
|
||||
#define IMASK_T_SUB_SP_32 0xf2ff8f00 /* subw sp, sp, # */
|
||||
#define IOP_T_SUB_SP_32 0xf2ad0d00
|
||||
|
||||
#define IMASK_T_SUB_W_SP_32 0xfbff8f00 /* sub.w sp, sp, # */
|
||||
#define IOP_T_SUB_W_SP_32 0xf1ad0d00
|
||||
|
||||
#define IMASK_T_BLX 0xff80 /* blx */
|
||||
#define IOP_T_BLX 0x4780
|
||||
|
||||
#define IMASK_T_BL 0xf800 /* blx */
|
||||
#define IOP_T_BL 0xf000
|
||||
|
||||
#define INSTR_LIMIT 0x2000
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
@ -58,6 +86,35 @@ static FAR void **g_backtrace_code_regions;
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: getlroffset
|
||||
*
|
||||
* Description:
|
||||
* getlroffset() returns the currect link address offset.
|
||||
*
|
||||
* Input Parameters:
|
||||
* lr - Link register address
|
||||
*
|
||||
* Returned Value:
|
||||
* Link address offset, 0 is returned if the lr is invalid.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
static int getlroffset(FAR uint8_t *lr)
|
||||
{
|
||||
lr = (FAR uint8_t *)((uintptr_t)lr & 0xfffffffe);
|
||||
|
||||
if (((uintptr_t)lr & 0xffffffe0) == 0xffffffe0)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
return (*(FAR uint16_t *)(lr - 4) & 0xf000) == 0xf000 ? 5 : 3;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: in_code_region
|
||||
*
|
||||
@ -106,6 +163,190 @@ static bool in_code_region(FAR void *pc)
|
||||
return false;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: backtrace_push_internal
|
||||
*
|
||||
* Description:
|
||||
* backtrace_push_internal() returns the currect link address from
|
||||
* program counter and stack pointer
|
||||
*
|
||||
* Input Parameters:
|
||||
* psp - Double poninter to the SP, this parameter will be changed if
|
||||
* the corresponding LR address is successfully found.
|
||||
* ppc - Double poninter to the PC, this parameter will be changed if
|
||||
* the corresponding LR address is successfully found.
|
||||
*
|
||||
* Returned Value:
|
||||
* Link address should be returned if successful
|
||||
* Otherwise, NULL is returned
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
static FAR void *backtrace_push_internal(FAR void **psp,
|
||||
FAR void **ppc)
|
||||
{
|
||||
FAR uint8_t *sp = *psp;
|
||||
FAR uint8_t *pc = *ppc;
|
||||
FAR uint8_t *base;
|
||||
FAR uint8_t *lr;
|
||||
uint32_t ins32;
|
||||
uint16_t ins16;
|
||||
int offset = 1;
|
||||
int frame;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < INSTR_LIMIT; i += 2)
|
||||
{
|
||||
ins16 = *(FAR uint16_t *)(pc - i);
|
||||
if (INSTR_IS(ins16, T_PUSH))
|
||||
{
|
||||
frame = __builtin_popcount(ins16 & 0xff) + 1;
|
||||
ins16 = *(FAR uint16_t *)(pc - i - 2);
|
||||
if (INSTR_IS(ins16, T_PUSH_LO))
|
||||
{
|
||||
offset += __builtin_popcount(ins16 & 0xff);
|
||||
frame += offset - 1;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
ins32 = ins16 << 16;
|
||||
ins32 |= *(FAR uint16_t *)(pc - i + 2);
|
||||
if (INSTR_IS(ins32, T_STMDB))
|
||||
{
|
||||
frame = __builtin_popcount(ins32 & 0xfff) + 1;
|
||||
ins16 = *(FAR uint16_t *)(pc - i - 2);
|
||||
if (INSTR_IS(ins16, T_PUSH_LO))
|
||||
{
|
||||
offset += __builtin_popcount(ins16 & 0xff);
|
||||
frame += offset - 1;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (i >= INSTR_LIMIT)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
base = pc - i;
|
||||
|
||||
for (i = 0; i < INSTR_LIMIT && base + i < pc; )
|
||||
{
|
||||
ins16 = *(FAR uint16_t *)(base + i);
|
||||
if (INSTR_IS(ins16, T_SUB_SP_16))
|
||||
{
|
||||
frame += (ins16 & 0x7f);
|
||||
break;
|
||||
}
|
||||
|
||||
ins32 = ins16 << 16;
|
||||
ins32 |= *(FAR uint16_t *)(base + i + 2);
|
||||
if (INSTR_IS(ins32, T_SUB_SP_32))
|
||||
{
|
||||
uint32_t shift = ins32 >> 24 & 0x4;
|
||||
uint32_t sub = 0;
|
||||
|
||||
if (shift)
|
||||
{
|
||||
sub = 1 << (shift - 1 + 8);
|
||||
}
|
||||
|
||||
frame += (sub + (ins32 & 0xff) +
|
||||
((ins32 & 0x7000) >> 4)) / sizeof(uint32_t);
|
||||
break;
|
||||
}
|
||||
else if (INSTR_IS(ins32, T_SUB_W_SP_32))
|
||||
{
|
||||
uint32_t shift;
|
||||
uint32_t sub;
|
||||
|
||||
sub = (ins32 & 0x7f) + 0x80;
|
||||
shift = (ins32 >> 7) & 0x1;
|
||||
shift += ((ins32 >> 12) & 0x7) << 1;
|
||||
shift += ((ins32 >> 26) & 0x1) << 4;
|
||||
|
||||
frame += sub << (30 - shift);
|
||||
break;
|
||||
}
|
||||
else if (INSTR_IS(ins32, T_VPUSH_16))
|
||||
{
|
||||
frame += (ins32 & 0xff);
|
||||
}
|
||||
else if (INSTR_IS(ins32, T_VPUSH_8))
|
||||
{
|
||||
frame += (ins32 & 0xff) / 2;
|
||||
}
|
||||
|
||||
i += ((ins16 & 0xf800) >= 0xe800) ? 4 : 2;
|
||||
}
|
||||
|
||||
lr = (FAR uint8_t *)*((FAR uint32_t *)sp + frame - offset);
|
||||
if (!in_code_region(lr))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
offset = getlroffset(lr);
|
||||
if (offset == 0)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
*psp = (FAR uint32_t *)sp + frame;
|
||||
*ppc = lr - offset;
|
||||
|
||||
return *ppc;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: backtrace_push
|
||||
*
|
||||
* Description:
|
||||
* backtrace_push() parsing the return address through instruction
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
static int backtrace_push(FAR void *limit, FAR void **sp,
|
||||
FAR void *pc, FAR void **buffer, int size)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
if (!in_code_region(pc))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
pc = (uintptr_t)pc & 0xfffffffe;
|
||||
|
||||
buffer[i++] = pc;
|
||||
|
||||
for (; i < size; i++)
|
||||
{
|
||||
if (*sp >= limit)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
buffer[i] = backtrace_push_internal(sp, &pc);
|
||||
if (!buffer[i])
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: backtrace_branch
|
||||
*
|
||||
@ -165,10 +406,10 @@ static int backtrace_branch(FAR void *limit, FAR void *sp,
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: arm_backtrace_init_code_regions
|
||||
* Name: up_backtrace_init_code_regions
|
||||
*
|
||||
* Description:
|
||||
* The up call arm_backtrace_init_code_regions() will set the start
|
||||
* The up call up_backtrace_init_code_regions() will set the start
|
||||
* and end addresses of the customized program sections, this method
|
||||
* will help the different boards to configure the current text
|
||||
* sections for some complicate platfroms
|
||||
@ -188,14 +429,14 @@ static int backtrace_branch(FAR void *limit, FAR void *sp,
|
||||
* NULL, NULL,
|
||||
* };
|
||||
*
|
||||
* arm_backtrace_init_code_regions(g_code_regions);
|
||||
* up_backtrace_init_code_regions(g_code_regions);
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_MM_KASAN
|
||||
__attribute__((no_sanitize_address))
|
||||
#endif
|
||||
void arm_backtrace_init_code_regions(FAR void **regions)
|
||||
void up_backtrace_init_code_regions(FAR void **regions)
|
||||
{
|
||||
g_backtrace_code_regions = regions;
|
||||
}
|
||||
@ -247,49 +488,75 @@ int up_backtrace(FAR struct tcb_s *tcb, FAR void **buffer, int size)
|
||||
if (tcb == rtcb)
|
||||
{
|
||||
sp = (FAR void *)up_getsp();
|
||||
|
||||
if (up_interrupt_context())
|
||||
{
|
||||
#if CONFIG_ARCH_INTERRUPTSTACK > 7
|
||||
ret = backtrace_branch(
|
||||
ret = backtrace_push(
|
||||
# ifdef CONFIG_SMP
|
||||
(uint32_t)arm_intstack_alloc()
|
||||
arm_intstack_top(),
|
||||
# else
|
||||
(uint32_t)&g_intstackalloc
|
||||
# endif
|
||||
+ (CONFIG_ARCH_INTERRUPTSTACK & ~7), sp,
|
||||
buffer, size);
|
||||
&g_intstacktop,
|
||||
# endif /* CONFIG_SMP */
|
||||
&sp, (FAR void *)up_backtrace + 10,
|
||||
buffer, size);
|
||||
#else
|
||||
ret = backtrace_push(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size,
|
||||
&sp, (FAR void *)up_backtrace + 10,
|
||||
buffer, size);
|
||||
#endif
|
||||
if (ret < size)
|
||||
{
|
||||
sp = (FAR void *)CURRENT_REGS[REG_SP];
|
||||
ret += backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
&buffer[ret], size - ret);
|
||||
ret += backtrace_push(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, &sp,
|
||||
(FAR void *)CURRENT_REGS[REG_PC],
|
||||
&buffer[ret], size - ret);
|
||||
}
|
||||
#else
|
||||
sp = (FAR void *)CURRENT_REGS[REG_SP];
|
||||
ret = backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
buffer, size);
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{
|
||||
ret = backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
buffer, size);
|
||||
ret = backtrace_push(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, &sp,
|
||||
(FAR void *)up_backtrace + 10,
|
||||
buffer, size);
|
||||
}
|
||||
|
||||
if (ret < size)
|
||||
{
|
||||
ret += backtrace_branch(rtcb->stack_base_ptr +
|
||||
rtcb->adj_stack_size, sp,
|
||||
&buffer[ret], size - ret);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
ret = 0;
|
||||
|
||||
flags = enter_critical_section();
|
||||
|
||||
ret = backtrace_branch(tcb->stack_base_ptr +
|
||||
tcb->adj_stack_size,
|
||||
(FAR void *)tcb->xcp.regs[REG_SP],
|
||||
buffer, size);
|
||||
buffer[ret++] = tcb->xcp.regs[REG_PC];
|
||||
|
||||
if (ret < size)
|
||||
{
|
||||
sp = (FAR void *)tcb->xcp.regs[REG_SP];
|
||||
ret += backtrace_push(tcb->stack_base_ptr +
|
||||
tcb->adj_stack_size, &sp,
|
||||
(FAR void *)tcb->xcp.regs[REG_LR],
|
||||
&buffer[ret], size - ret);
|
||||
|
||||
if (ret < size)
|
||||
{
|
||||
ret += backtrace_branch(tcb->stack_base_ptr +
|
||||
tcb->adj_stack_size, sp,
|
||||
&buffer[ret], size - ret);
|
||||
}
|
||||
}
|
||||
|
||||
leave_critical_section(flags);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
#endif /* CONFIG_ARM_THUMB */
|
||||
Loading…
Reference in New Issue
Block a user