RT-Thread_v4.1.1
This commit is contained in:
23
libcpu/arm/common/SConscript
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23
libcpu/arm/common/SConscript
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@ -0,0 +1,23 @@
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# RT-Thread building script for component
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from building import *
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Import('rtconfig')
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cwd = GetCurrentDir()
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src = Glob('*.c') + Glob('*.cpp')
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CPPPATH = [cwd]
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if rtconfig.PLATFORM in ['armcc', 'armclang']:
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src += Glob('*_rvds.S')
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if rtconfig.PLATFORM in ['gcc']:
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src += Glob('*_init.S')
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src += Glob('*_gcc.S')
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if rtconfig.PLATFORM in ['iccarm']:
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src += Glob('*_iar.S')
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group = DefineGroup('CPU', src, depend = [''], CPPPATH = CPPPATH)
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Return('group')
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63
libcpu/arm/common/backtrace.c
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63
libcpu/arm/common/backtrace.c
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2008-07-29 Bernard first version from QiuYi implementation
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*/
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#include <rtthread.h>
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#ifdef __GNUC__
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/*
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-->High Address,Stack Top
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PC<------|
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LR |
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IP |
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FP |
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...... |
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PC <-| |
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LR | |
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IP | |
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FP---|-- |
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...... |
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PC |
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LR |
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IP |
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FP---
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-->Low Address,Stack Bottom
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*/
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void rt_hw_backtrace(rt_uint32_t *fp, rt_uint32_t thread_entry)
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{
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rt_uint32_t i, pc, func_entry;
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pc = *fp;
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rt_kprintf("[0x%x]\n", pc - 0xC);
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for (i = 0; i < 10; i++)
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{
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fp = (rt_uint32_t *) * (fp - 3);
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pc = *fp ;
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func_entry = pc - 0xC;
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if (func_entry <= 0x30000000) break;
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if (func_entry == thread_entry)
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{
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rt_kprintf("EntryPoint:0x%x\n", func_entry);
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break;
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}
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rt_kprintf("[0x%x]\n", func_entry);
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}
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}
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#else
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void rt_hw_backtrace(rt_uint32_t *fp, rt_uint32_t thread_entry)
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{
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/* old compiler implementation */
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}
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#endif
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12
libcpu/arm/common/div0.c
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12
libcpu/arm/common/div0.c
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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*/
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void __div0(void)
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{
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while (1) ;
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}
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401
libcpu/arm/common/divsi3.S
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401
libcpu/arm/common/divsi3.S
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@ -0,0 +1,401 @@
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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*/
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/* $NetBSD: divsi3.S,v 1.5 2005/02/26 22:58:56 perry Exp $ */
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/*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* stack is aligned as there's a possibility of branching to L_overflow
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* which makes a C call
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*/
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.text
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.align 0
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.globl __umodsi3
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.type __umodsi3 , function
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__umodsi3:
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stmfd sp!, {lr}
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sub sp, sp, #4 /* align stack */
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bl .L_udivide
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add sp, sp, #4 /* unalign stack */
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mov r0, r1
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ldmfd sp!, {pc}
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.text
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.align 0
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.globl __modsi3
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.type __modsi3 , function
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__modsi3:
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stmfd sp!, {lr}
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sub sp, sp, #4 /* align stack */
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bl .L_divide
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add sp, sp, #4 /* unalign stack */
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mov r0, r1
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ldmfd sp!, {pc}
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.L_overflow:
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/* XXX should cause a fatal error */
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mvn r0, #0
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mov pc, lr
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.text
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.align 0
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.globl __udivsi3
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.type __udivsi3 , function
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__udivsi3:
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.L_udivide: /* r0 = r0 / r1; r1 = r0 % r1 */
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eor r0, r1, r0
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eor r1, r0, r1
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eor r0, r1, r0
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/* r0 = r1 / r0; r1 = r1 % r0 */
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cmp r0, #1
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bcc .L_overflow
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beq .L_divide_l0
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mov ip, #0
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movs r1, r1
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bpl .L_divide_l1
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orr ip, ip, #0x20000000 /* ip bit 0x20000000 = -ve r1 */
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movs r1, r1, lsr #1
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orrcs ip, ip, #0x10000000 /* ip bit 0x10000000 = bit 0 of r1 */
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b .L_divide_l1
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.L_divide_l0: /* r0 == 1 */
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mov r0, r1
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mov r1, #0
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mov pc, lr
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.text
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.align 0
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.globl __divsi3
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.type __divsi3 , function
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__divsi3:
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.L_divide: /* r0 = r0 / r1; r1 = r0 % r1 */
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eor r0, r1, r0
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eor r1, r0, r1
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eor r0, r1, r0
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/* r0 = r1 / r0; r1 = r1 % r0 */
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cmp r0, #1
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bcc .L_overflow
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beq .L_divide_l0
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ands ip, r0, #0x80000000
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rsbmi r0, r0, #0
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ands r2, r1, #0x80000000
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eor ip, ip, r2
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rsbmi r1, r1, #0
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orr ip, r2, ip, lsr #1 /* ip bit 0x40000000 = -ve division */
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/* ip bit 0x80000000 = -ve remainder */
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.L_divide_l1:
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mov r2, #1
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mov r3, #0
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/*
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* If the highest bit of the dividend is set, we have to be
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* careful when shifting the divisor. Test this.
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*/
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movs r1,r1
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bpl .L_old_code
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/*
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* At this point, the highest bit of r1 is known to be set.
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* We abuse this below in the tst instructions.
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*/
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tst r1, r0 /*, lsl #0 */
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bmi .L_divide_b1
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tst r1, r0, lsl #1
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bmi .L_divide_b2
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tst r1, r0, lsl #2
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bmi .L_divide_b3
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tst r1, r0, lsl #3
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bmi .L_divide_b4
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tst r1, r0, lsl #4
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bmi .L_divide_b5
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tst r1, r0, lsl #5
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bmi .L_divide_b6
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tst r1, r0, lsl #6
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bmi .L_divide_b7
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tst r1, r0, lsl #7
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bmi .L_divide_b8
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tst r1, r0, lsl #8
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bmi .L_divide_b9
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tst r1, r0, lsl #9
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bmi .L_divide_b10
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tst r1, r0, lsl #10
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bmi .L_divide_b11
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tst r1, r0, lsl #11
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bmi .L_divide_b12
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tst r1, r0, lsl #12
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bmi .L_divide_b13
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tst r1, r0, lsl #13
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bmi .L_divide_b14
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tst r1, r0, lsl #14
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bmi .L_divide_b15
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tst r1, r0, lsl #15
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bmi .L_divide_b16
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tst r1, r0, lsl #16
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bmi .L_divide_b17
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tst r1, r0, lsl #17
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bmi .L_divide_b18
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tst r1, r0, lsl #18
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bmi .L_divide_b19
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tst r1, r0, lsl #19
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bmi .L_divide_b20
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tst r1, r0, lsl #20
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bmi .L_divide_b21
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tst r1, r0, lsl #21
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bmi .L_divide_b22
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tst r1, r0, lsl #22
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bmi .L_divide_b23
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tst r1, r0, lsl #23
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bmi .L_divide_b24
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tst r1, r0, lsl #24
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bmi .L_divide_b25
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tst r1, r0, lsl #25
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bmi .L_divide_b26
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tst r1, r0, lsl #26
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bmi .L_divide_b27
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tst r1, r0, lsl #27
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bmi .L_divide_b28
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tst r1, r0, lsl #28
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bmi .L_divide_b29
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tst r1, r0, lsl #29
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bmi .L_divide_b30
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tst r1, r0, lsl #30
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bmi .L_divide_b31
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/*
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* instead of:
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* tst r1, r0, lsl #31
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* bmi .L_divide_b32
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*/
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b .L_divide_b32
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.L_old_code:
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cmp r1, r0
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bcc .L_divide_b0
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cmp r1, r0, lsl #1
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bcc .L_divide_b1
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cmp r1, r0, lsl #2
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bcc .L_divide_b2
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cmp r1, r0, lsl #3
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bcc .L_divide_b3
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cmp r1, r0, lsl #4
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bcc .L_divide_b4
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cmp r1, r0, lsl #5
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bcc .L_divide_b5
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cmp r1, r0, lsl #6
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bcc .L_divide_b6
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cmp r1, r0, lsl #7
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bcc .L_divide_b7
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cmp r1, r0, lsl #8
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bcc .L_divide_b8
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cmp r1, r0, lsl #9
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bcc .L_divide_b9
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cmp r1, r0, lsl #10
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bcc .L_divide_b10
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cmp r1, r0, lsl #11
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bcc .L_divide_b11
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cmp r1, r0, lsl #12
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bcc .L_divide_b12
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cmp r1, r0, lsl #13
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bcc .L_divide_b13
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cmp r1, r0, lsl #14
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bcc .L_divide_b14
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cmp r1, r0, lsl #15
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bcc .L_divide_b15
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cmp r1, r0, lsl #16
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bcc .L_divide_b16
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cmp r1, r0, lsl #17
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bcc .L_divide_b17
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cmp r1, r0, lsl #18
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bcc .L_divide_b18
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cmp r1, r0, lsl #19
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bcc .L_divide_b19
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cmp r1, r0, lsl #20
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bcc .L_divide_b20
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cmp r1, r0, lsl #21
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bcc .L_divide_b21
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cmp r1, r0, lsl #22
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bcc .L_divide_b22
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cmp r1, r0, lsl #23
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bcc .L_divide_b23
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cmp r1, r0, lsl #24
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bcc .L_divide_b24
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cmp r1, r0, lsl #25
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bcc .L_divide_b25
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cmp r1, r0, lsl #26
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bcc .L_divide_b26
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cmp r1, r0, lsl #27
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bcc .L_divide_b27
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cmp r1, r0, lsl #28
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bcc .L_divide_b28
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cmp r1, r0, lsl #29
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bcc .L_divide_b29
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cmp r1, r0, lsl #30
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bcc .L_divide_b30
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.L_divide_b32:
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cmp r1, r0, lsl #31
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subhs r1, r1,r0, lsl #31
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addhs r3, r3,r2, lsl #31
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.L_divide_b31:
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cmp r1, r0, lsl #30
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subhs r1, r1,r0, lsl #30
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addhs r3, r3,r2, lsl #30
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.L_divide_b30:
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cmp r1, r0, lsl #29
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subhs r1, r1,r0, lsl #29
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addhs r3, r3,r2, lsl #29
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.L_divide_b29:
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cmp r1, r0, lsl #28
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subhs r1, r1,r0, lsl #28
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addhs r3, r3,r2, lsl #28
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.L_divide_b28:
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cmp r1, r0, lsl #27
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subhs r1, r1,r0, lsl #27
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addhs r3, r3,r2, lsl #27
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.L_divide_b27:
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cmp r1, r0, lsl #26
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subhs r1, r1,r0, lsl #26
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addhs r3, r3,r2, lsl #26
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.L_divide_b26:
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cmp r1, r0, lsl #25
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subhs r1, r1,r0, lsl #25
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addhs r3, r3,r2, lsl #25
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||||
.L_divide_b25:
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cmp r1, r0, lsl #24
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subhs r1, r1,r0, lsl #24
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addhs r3, r3,r2, lsl #24
|
||||
.L_divide_b24:
|
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cmp r1, r0, lsl #23
|
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subhs r1, r1,r0, lsl #23
|
||||
addhs r3, r3,r2, lsl #23
|
||||
.L_divide_b23:
|
||||
cmp r1, r0, lsl #22
|
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subhs r1, r1,r0, lsl #22
|
||||
addhs r3, r3,r2, lsl #22
|
||||
.L_divide_b22:
|
||||
cmp r1, r0, lsl #21
|
||||
subhs r1, r1,r0, lsl #21
|
||||
addhs r3, r3,r2, lsl #21
|
||||
.L_divide_b21:
|
||||
cmp r1, r0, lsl #20
|
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subhs r1, r1,r0, lsl #20
|
||||
addhs r3, r3,r2, lsl #20
|
||||
.L_divide_b20:
|
||||
cmp r1, r0, lsl #19
|
||||
subhs r1, r1,r0, lsl #19
|
||||
addhs r3, r3,r2, lsl #19
|
||||
.L_divide_b19:
|
||||
cmp r1, r0, lsl #18
|
||||
subhs r1, r1,r0, lsl #18
|
||||
addhs r3, r3,r2, lsl #18
|
||||
.L_divide_b18:
|
||||
cmp r1, r0, lsl #17
|
||||
subhs r1, r1,r0, lsl #17
|
||||
addhs r3, r3,r2, lsl #17
|
||||
.L_divide_b17:
|
||||
cmp r1, r0, lsl #16
|
||||
subhs r1, r1,r0, lsl #16
|
||||
addhs r3, r3,r2, lsl #16
|
||||
.L_divide_b16:
|
||||
cmp r1, r0, lsl #15
|
||||
subhs r1, r1,r0, lsl #15
|
||||
addhs r3, r3,r2, lsl #15
|
||||
.L_divide_b15:
|
||||
cmp r1, r0, lsl #14
|
||||
subhs r1, r1,r0, lsl #14
|
||||
addhs r3, r3,r2, lsl #14
|
||||
.L_divide_b14:
|
||||
cmp r1, r0, lsl #13
|
||||
subhs r1, r1,r0, lsl #13
|
||||
addhs r3, r3,r2, lsl #13
|
||||
.L_divide_b13:
|
||||
cmp r1, r0, lsl #12
|
||||
subhs r1, r1,r0, lsl #12
|
||||
addhs r3, r3,r2, lsl #12
|
||||
.L_divide_b12:
|
||||
cmp r1, r0, lsl #11
|
||||
subhs r1, r1,r0, lsl #11
|
||||
addhs r3, r3,r2, lsl #11
|
||||
.L_divide_b11:
|
||||
cmp r1, r0, lsl #10
|
||||
subhs r1, r1,r0, lsl #10
|
||||
addhs r3, r3,r2, lsl #10
|
||||
.L_divide_b10:
|
||||
cmp r1, r0, lsl #9
|
||||
subhs r1, r1,r0, lsl #9
|
||||
addhs r3, r3,r2, lsl #9
|
||||
.L_divide_b9:
|
||||
cmp r1, r0, lsl #8
|
||||
subhs r1, r1,r0, lsl #8
|
||||
addhs r3, r3,r2, lsl #8
|
||||
.L_divide_b8:
|
||||
cmp r1, r0, lsl #7
|
||||
subhs r1, r1,r0, lsl #7
|
||||
addhs r3, r3,r2, lsl #7
|
||||
.L_divide_b7:
|
||||
cmp r1, r0, lsl #6
|
||||
subhs r1, r1,r0, lsl #6
|
||||
addhs r3, r3,r2, lsl #6
|
||||
.L_divide_b6:
|
||||
cmp r1, r0, lsl #5
|
||||
subhs r1, r1,r0, lsl #5
|
||||
addhs r3, r3,r2, lsl #5
|
||||
.L_divide_b5:
|
||||
cmp r1, r0, lsl #4
|
||||
subhs r1, r1,r0, lsl #4
|
||||
addhs r3, r3,r2, lsl #4
|
||||
.L_divide_b4:
|
||||
cmp r1, r0, lsl #3
|
||||
subhs r1, r1,r0, lsl #3
|
||||
addhs r3, r3,r2, lsl #3
|
||||
.L_divide_b3:
|
||||
cmp r1, r0, lsl #2
|
||||
subhs r1, r1,r0, lsl #2
|
||||
addhs r3, r3,r2, lsl #2
|
||||
.L_divide_b2:
|
||||
cmp r1, r0, lsl #1
|
||||
subhs r1, r1,r0, lsl #1
|
||||
addhs r3, r3,r2, lsl #1
|
||||
.L_divide_b1:
|
||||
cmp r1, r0
|
||||
subhs r1, r1, r0
|
||||
addhs r3, r3, r2
|
||||
.L_divide_b0:
|
||||
|
||||
tst ip, #0x20000000
|
||||
bne .L_udivide_l1
|
||||
mov r0, r3
|
||||
cmp ip, #0
|
||||
rsbmi r1, r1, #0
|
||||
movs ip, ip, lsl #1
|
||||
bicmi r0, r0, #0x80000000 /* Fix incase we divided 0x80000000 */
|
||||
rsbmi r0, r0, #0
|
||||
mov pc, lr
|
||||
|
||||
.L_udivide_l1:
|
||||
tst ip, #0x10000000
|
||||
mov r1, r1, lsl #1
|
||||
orrne r1, r1, #1
|
||||
mov r3, r3, lsl #1
|
||||
cmp r1, r0
|
||||
subhs r1, r1, r0
|
||||
addhs r3, r3, r2
|
||||
mov r0, r3
|
||||
mov pc, lr
|
||||
38
libcpu/arm/common/showmem.c
Normal file
38
libcpu/arm/common/showmem.c
Normal file
@ -0,0 +1,38 @@
|
||||
/*
|
||||
* Copyright (c) 2006-2022, RT-Thread Development Team
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2008-07-29 Bernard first version from QiuYi implementation
|
||||
*/
|
||||
|
||||
#include <rtthread.h>
|
||||
|
||||
void rt_hw_show_memory(rt_uint32_t addr, rt_uint32_t size)
|
||||
{
|
||||
unsigned int i = 0, j = 0;
|
||||
|
||||
RT_ASSERT(addr);
|
||||
|
||||
addr = addr & ~0xF;
|
||||
size = 4 * ((size + 3) / 4);
|
||||
|
||||
while (i < size)
|
||||
{
|
||||
rt_kprintf("0x%08x: ", addr);
|
||||
|
||||
for (j = 0; j < 4; j++)
|
||||
{
|
||||
rt_kprintf("0x%08x ", *(rt_uint32_t *)addr);
|
||||
|
||||
addr += 4;
|
||||
i++;
|
||||
}
|
||||
|
||||
rt_kprintf("\n");
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
Reference in New Issue
Block a user