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/*
* FreeRTOS V202212.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/*
* "Reg tests" - These tests fill the registers with known values, then check
* that each register maintains its expected value for the lifetime of the
* task. Each task uses a different set of values. The reg test tasks execute
* with a very low priority, so get preempted very frequently. A register
* containing an unexpected value is indicative of an error in the context
* switching mechanism.
*/
#include "reg_test_asm.h"
/*-----------------------------------------------------------*/
void vRegTest1Asm_NonSecure( void ) /* __attribute__(( naked )) */
{
__asm volatile
(
".extern ulRegTest1LoopCounter \n"
".syntax unified \n"
" \n"
" /* Fill the core registers with known values. */ \n"
" movs r1, #101 \n"
" movs r2, #102 \n"
" movs r3, #103 \n"
" movs r4, #104 \n"
" movs r5, #105 \n"
" movs r6, #106 \n"
" movs r7, #107 \n"
" movs r0, #108 \n"
" mov r8, r0 \n"
" movs r0, #109 \n"
" mov r9, r0 \n"
" movs r0, #110 \n"
" mov r10, r0 \n"
" movs r0, #111 \n"
" mov r11, r0 \n"
" movs r0, #112 \n"
" mov r12, r0 \n"
" movs r0, #100 \n"
" \n"
"reg1_loop: \n"
" \n"
" /* Verify that core registers contain correct values. */ \n"
" cmp r0, #100 \n"
" bne reg1_error_loop \n"
" cmp r1, #101 \n"
" bne reg1_error_loop \n"
" cmp r2, #102 \n"
" bne reg1_error_loop \n"
" cmp r3, #103 \n"
" bne reg1_error_loop \n"
" cmp r4, #104 \n"
" bne reg1_error_loop \n"
" cmp r5, #105 \n"
" bne reg1_error_loop \n"
" cmp r6, #106 \n"
" bne reg1_error_loop \n"
" cmp r7, #107 \n"
" bne reg1_error_loop \n"
" movs r0, #108 \n"
" cmp r8, r0 \n"
" bne reg1_error_loop \n"
" movs r0, #109 \n"
" cmp r9, r0 \n"
" bne reg1_error_loop \n"
" movs r0, #110 \n"
" cmp r10, r0 \n"
" bne reg1_error_loop \n"
" movs r0, #111 \n"
" cmp r11, r0 \n"
" bne reg1_error_loop \n"
" movs r0, #112 \n"
" cmp r12, r0 \n"
" bne reg1_error_loop \n"
" \n"
" /* Everything passed, inc the loop counter. */ \n"
" push { r1 } \n"
" ldr r0, =ulRegTest1LoopCounter \n"
" ldr r1, [r0] \n"
" adds r1, r1, #1 \n"
" str r1, [r0] \n"
" \n"
" /* Yield to increase test coverage. */ \n"
" movs r0, #0x01 \n"
" ldr r1, =0xe000ed04 \n" /* NVIC_ICSR. */
" lsls r0, #28 \n" /* Shift to PendSV bit. */
" str r0, [r1] \n"
" dsb \n"
" pop { r1 } \n"
" \n"
" /* Start again. */ \n"
" movs r0, #100 \n"
" b reg1_loop \n"
" \n"
"reg1_error_loop: \n"
" /* If this line is hit then there was an error in \n"
" * a core register value. The loop ensures the \n"
" * loop counter stops incrementing. */ \n"
" b reg1_error_loop \n"
" nop \n"
);
}
/*-----------------------------------------------------------*/
void vRegTest2Asm_NonSecure( void ) /* __attribute__(( naked )) */
{
__asm volatile
(
".extern ulRegTest2LoopCounter \n"
".syntax unified \n"
" \n"
" /* Fill the core registers with known values. */ \n"
" movs r1, #1 \n"
" movs r2, #2 \n"
" movs r3, #3 \n"
" movs r4, #4 \n"
" movs r5, #5 \n"
" movs r6, #6 \n"
" movs r7, #7 \n"
" movs r0, #8 \n"
" mov r8, r0 \n"
" movs r0, #9 \n"
" mov r9, r0 \n"
" movs r0, #10 \n"
" mov r10, r0 \n"
" movs r0, #11 \n"
" mov r11, r0 \n"
" movs r0, #12 \n"
" mov r12, r0 \n"
" movs r0, #10 \n"
" \n"
"reg2_loop: \n"
" \n"
" /* Verify that core registers contain correct values. */ \n"
" cmp r0, #10 \n"
" bne reg2_error_loop \n"
" cmp r1, #1 \n"
" bne reg2_error_loop \n"
" cmp r2, #2 \n"
" bne reg2_error_loop \n"
" cmp r3, #3 \n"
" bne reg2_error_loop \n"
" cmp r4, #4 \n"
" bne reg2_error_loop \n"
" cmp r5, #5 \n"
" bne reg2_error_loop \n"
" cmp r6, #6 \n"
" bne reg2_error_loop \n"
" cmp r7, #7 \n"
" bne reg2_error_loop \n"
" movs r0, #8 \n"
" cmp r8, r0 \n"
" bne reg2_error_loop \n"
" movs r0, #9 \n"
" cmp r9, r0 \n"
" bne reg2_error_loop \n"
" movs r0, #10 \n"
" cmp r10, r0 \n"
" bne reg2_error_loop \n"
" movs r0, #11 \n"
" cmp r11, r0 \n"
" bne reg2_error_loop \n"
" movs r0, #12 \n"
" cmp r12, r0 \n"
" bne reg2_error_loop \n"
" \n"
" /* Everything passed, inc the loop counter. */ \n"
" push { r1 } \n"
" ldr r0, =ulRegTest2LoopCounter \n"
" ldr r1, [r0] \n"
" adds r1, r1, #1 \n"
" str r1, [r0] \n"
" pop { r1 } \n"
" \n"
" /* Start again. */ \n"
" movs r0, #10 \n"
" b reg2_loop \n"
" \n"
"reg2_error_loop: \n"
" /* If this line is hit then there was an error in \n"
" * a core register value. The loop ensures the \n"
" * loop counter stops incrementing. */ \n"
" b reg2_error_loop \n"
" nop \n"
);
}
/*-----------------------------------------------------------*/
void vRegTestAsm_NonSecureCallback( void )
{
__asm volatile
(
".syntax unified \n"
" \n"
" /* Store callee saved registers. */ \n"
" push { r4-r7 } \n"
" mov r0, r8 \n"
" mov r1, r9 \n"
" mov r2, r10 \n"
" mov r3, r11 \n"
" mov r4, r12 \n"
" push { r0-r4 } \n"
" \n"
" /* Fill the core registers with known values. */ \n"
" movs r1, #151 \n"
" movs r2, #152 \n"
" movs r3, #153 \n"
" movs r4, #154 \n"
" movs r5, #155 \n"
" movs r6, #156 \n"
" movs r7, #157 \n"
" movs r0, #158 \n"
" mov r8, r0 \n"
" movs r0, #159 \n"
" mov r9, r0 \n"
" movs r0, #160 \n"
" mov r10, r0 \n"
" movs r0, #161 \n"
" mov r11, r0 \n"
" movs r0, #162 \n"
" mov r12, r0 \n"
" movs r0, #150 \n"
" \n"
" /* Force a context switch by pending non-secure sv. */ \n"
" push { r0, r1 } \n"
" movs r0, #0x01 \n"
" ldr r1, =0xe000ed04 \n" /* NVIC_ICSR. */
" lsls r0, #28 \n" /* Shift to PendSV bit. */
" str r0, [r1] \n"
" dsb \n"
" pop { r0, r1 } \n"
" \n"
" /* Verify that core registers contain correct values. */ \n"
" cmp r0, #150 \n"
" bne reg_nscb_error_loop \n"
" cmp r1, #151 \n"
" bne reg_nscb_error_loop \n"
" cmp r2, #152 \n"
" bne reg_nscb_error_loop \n"
" cmp r3, #153 \n"
" bne reg_nscb_error_loop \n"
" cmp r4, #154 \n"
" bne reg_nscb_error_loop \n"
" cmp r5, #155 \n"
" bne reg_nscb_error_loop \n"
" cmp r6, #156 \n"
" bne reg_nscb_error_loop \n"
" cmp r7, #157 \n"
" bne reg_nscb_error_loop \n"
" movs r0, #158 \n"
" cmp r8, r0 \n"
" bne reg_nscb_error_loop \n"
" movs r0, #159 \n"
" cmp r9, r0 \n"
" bne reg_nscb_error_loop \n"
" movs r0, #160 \n"
" cmp r10, r0 \n"
" bne reg_nscb_error_loop \n"
" movs r0, #161 \n"
" cmp r11, r0 \n"
" bne reg_nscb_error_loop \n"
" movs r0, #162 \n"
" cmp r12, r0 \n"
" bne reg_nscb_error_loop \n"
" \n"
" /* Everything passed, finish. */ \n"
" b reg_nscb_success \n"
" \n"
"reg_nscb_error_loop : \n"
" /* If this line is hit then there was an error in \n"
" * a core register value. The loop ensures the \n"
" * loop counter stops incrementing. */ \n"
" b reg_nscb_error_loop \n"
" nop \n"
" \n"
"reg_nscb_success: \n"
" /* Restore callee saved registers. */ \n"
" pop { r0-r4 } \n"
" mov r8, r0 \n"
" mov r9, r1 \n"
" mov r10, r2 \n"
" mov r11, r3 \n"
" mov r12, r4 \n"
" pop { r4-r7 } \n"
);
}
/*-----------------------------------------------------------*/

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/*
* FreeRTOS V202212.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef REG_TEST_ASM_H
#define REG_TEST_ASM_H
/**
* @brief Functions that implement reg tests in assembly.
*
* These are called from the FreeRTOS tasks on the non-secure side.
*/
void vRegTest1Asm_NonSecure( void ) __attribute__( ( naked ) );
void vRegTest2Asm_NonSecure( void ) __attribute__( ( naked ) );
/**
* @brief Function that implements reg tests in assembly.
*
* This is passed as function pointer to the secure side and called
* from the secure side.
*/
void vRegTestAsm_NonSecureCallback( void );
#endif /* REG_TEST_ASM_H */

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/*
* FreeRTOS V202212.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
/* Standard includes. */
#include <stdint.h>
#include <arm_cmse.h>
/* Interface includes. */
#include "secure_reg_test_asm.h"
/* FreeRTOS includes. */
#include "secure_port_macros.h"
/* typedef for non-secure callback function. */
typedef RegTestCallback_t NonSecureRegTestCallback_t __attribute__( ( cmse_nonsecure_call ) );
/*-----------------------------------------------------------*/
secureportNON_SECURE_CALLABLE void vRegTestAsm_Secure( void )
{
__asm volatile
(
".syntax unified \n"
" \n"
" /* Store callee saved registers. */ \n"
" push { r4-r7 } \n"
" mov r0, r8 \n"
" mov r1, r9 \n"
" mov r2, r10 \n"
" mov r3, r11 \n"
" mov r4, r12 \n"
" push { r0-r4 } \n"
" \n"
" /* Fill the core registers with known values. */ \n"
" movs r1, #201 \n"
" movs r2, #202 \n"
" movs r3, #203 \n"
" movs r4, #204 \n"
" movs r5, #205 \n"
" movs r6, #206 \n"
" movs r7, #207 \n"
" movs r0, #208 \n"
" mov r8, r0 \n"
" movs r0, #209 \n"
" mov r9, r0 \n"
" movs r0, #210 \n"
" mov r10, r0 \n"
" movs r0, #211 \n"
" mov r11, r0 \n"
" movs r0, #212 \n"
" mov r12, r0 \n"
" movs r0, #200 \n"
" \n"
" /* Force a context switch by pending non-secure sv. */ \n"
" push { r0, r1 } \n"
" movs r0, #0x01 \n"
" ldr r1, =0xe002ed04 \n" /* NVIC_ICSR_NS. */
" lsls r0, #28 \n" /* Shift to PendSV bit. */
" str r0, [r1] \n"
" dsb \n"
" pop { r0, r1 } \n"
" \n"
" /* Verify that core registers contain correct values. */ \n"
" cmp r0, #200 \n"
" bne secure_reg_test_error_loop \n"
" cmp r1, #201 \n"
" bne secure_reg_test_error_loop \n"
" cmp r2, #202 \n"
" bne secure_reg_test_error_loop \n"
" cmp r3, #203 \n"
" bne secure_reg_test_error_loop \n"
" cmp r4, #204 \n"
" bne secure_reg_test_error_loop \n"
" cmp r5, #205 \n"
" bne secure_reg_test_error_loop \n"
" cmp r6, #206 \n"
" bne secure_reg_test_error_loop \n"
" cmp r7, #207 \n"
" bne secure_reg_test_error_loop \n"
" movs r0, #208 \n"
" cmp r8, r0 \n"
" bne secure_reg_test_error_loop \n"
" movs r0, #209 \n"
" cmp r9, r0 \n"
" bne secure_reg_test_error_loop \n"
" movs r0, #210 \n"
" cmp r10, r0 \n"
" bne secure_reg_test_error_loop \n"
" movs r0, #211 \n"
" cmp r11, r0 \n"
" bne secure_reg_test_error_loop \n"
" movs r0, #212 \n"
" cmp r12, r0 \n"
" bne secure_reg_test_error_loop \n"
" \n"
" /* Everything passed, finish. */ \n"
" b secure_reg_test_success \n"
" \n"
"secure_reg_test_error_loop: \n"
" /* If this line is hit then there was an error in \n"
" * a core register value. The loop ensures the \n"
" * loop counter stops incrementing. */ \n"
" b secure_reg_test_error_loop \n"
" nop \n"
" \n"
"secure_reg_test_success: \n"
" /* Restore callee saved registers. */ \n"
" pop { r0-r4 } \n"
" mov r8, r0 \n"
" mov r9, r1 \n"
" mov r10, r2 \n"
" mov r11, r3 \n"
" mov r12, r4 \n"
" pop { r4-r7 } \n"
);
}
/*-----------------------------------------------------------*/
secureportNON_SECURE_CALLABLE void vRegTest_NonSecureCallback( RegTestCallback_t pxRegTestCallback )
{
NonSecureRegTestCallback_t pxNonSecureRegTestCallback;
/* Return function pointer with cleared LSB. */
pxNonSecureRegTestCallback = ( NonSecureRegTestCallback_t ) cmse_nsfptr_create( pxRegTestCallback );
/* Invoke the callback which runs reg tests. */
pxNonSecureRegTestCallback();
}
/*-----------------------------------------------------------*/

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/*
* FreeRTOS V202212.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#ifndef SECURE_REG_TEST_ASM_H
#define SECURE_REG_TEST_ASM_H
/* Callback function pointer definition. */
typedef void ( * RegTestCallback_t )( void );
/**
* @brief Function that implements reg tests for the secure side.
*
* This function is exported as "non-secure callable" and is called
* from a FreeRTOS task on the non-secure side.
*/
void vRegTestAsm_Secure( void );
/**
* @brief Invokes the supplied reg test callback on the non-secure side.
*
* This function is exported as "non-secure callable" and is called
* from a FreeRTOS task on the non-secure side..
*/
void vRegTest_NonSecureCallback( RegTestCallback_t pxRegTestCallback );
#endif /* SECURE_REG_TEST_ASM_H */