Move unaligned_load 'experiment' to set of automated tests
This commit is contained in:
Angus Gratton
parent
c5abd71404
commit
14d865d637
2 changed files with 148 additions and 117 deletions
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@ -1,2 +0,0 @@
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PROGRAM=unaligned_load
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include ../../../common.mk
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@ -1,9 +1,14 @@
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/* Very basic example that just demonstrates we can run at all!
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*/
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/* Unit tests to verify the "unaligned load handler" in core/exception_vectors.S that allows us to
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complete byte loads from unaligned memory, etc.
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Adapted from a test program in 'experiments' that did this.
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*/
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#include "testcase.h"
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#include "esp/rom.h"
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#include "esp/timer.h"
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#include "espressif/esp_common.h"
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#include "esp/uart.h"
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#include "espressif/esp_common.h"
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#include "xtensa_ops.h"
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#include "FreeRTOS.h"
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#include "task.h"
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#include "queue.h"
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@ -11,61 +16,97 @@
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#include "string.h"
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#include "strings.h"
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#include <malloc.h>
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#define TESTSTRING "O hai there! %d %d %d"
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const char *dramtest = TESTSTRING;
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const __attribute__((section(".iram1.notrodata"))) char iramtest[] = TESTSTRING;
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const __attribute__((section(".text.notrodata"))) char iromtest[] = TESTSTRING;
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static const char *dramtest = TESTSTRING;
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static const __attribute__((section(".iram1.notrodata"))) char iramtest[] = TESTSTRING;
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static const __attribute__((section(".text.notrodata"))) char iromtest[] = TESTSTRING;
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static const volatile __attribute__((section(".iram1.notliterals"))) int16_t unsigned_shorts[] = { -3, -4, -5, -32767, 44 };
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static const __attribute__((section(".iram1.notrodata"))) char sanity_test_data[] = {
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0x01, 0x55, 0x7e, 0x2a, 0x81, 0xd5, 0xfe, 0xaa
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};
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static inline uint32_t get_ccount (void)
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DEFINE_SOLO_TESTCASE(03_byte_load_verify_sections)
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#define PTR_IN_REGION(PTR, START, LEN) ((START <= (intptr_t)(PTR)) && ((intptr_t)(PTR) < (START+LEN)))
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/* Sanity check, ensure the addresses of the various test strings are in the correct address space regions. */
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static void a_03_byte_load_verify_sections()
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{
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uint32_t ccount;
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asm volatile ("rsr.ccount %0" : "=a" (ccount));
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return ccount;
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printf("dramtest addr %p\n", dramtest);
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TEST_ASSERT_MESSAGE(PTR_IN_REGION(dramtest, 0x3FFE8000, 0x14000), "dramtest should be in DRAM region");
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printf("iramtest addr %p\n", iramtest);
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TEST_ASSERT_MESSAGE(PTR_IN_REGION(iramtest, 0x40100000, 0x8000), "iramtest should be in IRAM region");
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printf("iromtest addr %p\n", iromtest);
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TEST_ASSERT_MESSAGE(PTR_IN_REGION(iromtest, 0x40220000, 0x100000), "iromtest sohuld be in IROM region");
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printf("unsigned_shorts addr %p\n", unsigned_shorts);
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TEST_ASSERT_MESSAGE(PTR_IN_REGION(unsigned_shorts, 0x40100000, 0x8000), "unsigned_shorts should be in IRAM region");
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printf("sanity_test_data addr %p\n", sanity_test_data);
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TEST_ASSERT_MESSAGE(PTR_IN_REGION(sanity_test_data, 0x40100000, 0x8000), "sanity_test_data should be in IRAM region");
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TEST_PASS();
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}
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typedef void (* test_with_fn_t)(const char *string);
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char buf[64];
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/* test utility functions used for '03_byte_load_test_strings'
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void test_memcpy_aligned(const char *string)
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returns the expected string result */
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typedef const char *(* test_with_fn_t)(const char *string);
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static char buf[64];
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static const char * test_memcpy_aligned(const char *string)
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{
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memcpy(buf, string, 16);
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return "O hai there! %d ";
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}
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void test_memcpy_unaligned(const char *string)
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static const char * test_memcpy_unaligned(const char *string)
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{
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memcpy(buf, string, 15);
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return "O hai there! %d";
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}
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void test_memcpy_unaligned2(const char *string)
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static const char * test_memcpy_unaligned2(const char *string)
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{
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memcpy(buf, string+1, 15);
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return " hai there! %d ";
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}
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void test_strcpy(const char *string)
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static const char * test_strcpy(const char *string)
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{
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strcpy(buf, string);
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return dramtest;
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}
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void test_sprintf(const char *string)
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static const char * test_sprintf(const char *string)
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{
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sprintf(buf, string, 1, 2, 3);
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return "O hai there! 1 2 3";
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}
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void test_sprintf_arg(const char *string)
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static const char * test_sprintf_arg(const char *string)
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{
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sprintf(buf, "%s", string);
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return dramtest;
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}
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void test_naive_strcpy(const char *string)
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static const char * test_naive_strcpy(const char *string)
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{
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char *to = buf;
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while((*to++ = *string++))
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;
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return dramtest;
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}
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void test_naive_strcpy_a0(const char *string)
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static const char * test_naive_strcpy_a0(const char *string)
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{
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asm volatile (
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" mov a8, %0 \n"
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@ -76,9 +117,10 @@ void test_naive_strcpy_a0(const char *string)
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" addi.n a8, a8, 1 \n"
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" bnez a0, tns_loop%=\n"
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: : "r" (buf), "r" (string) : "a0", "a8", "a9");
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return dramtest;
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}
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void test_naive_strcpy_a2(const char *string)
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static const char * test_naive_strcpy_a2(const char *string)
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{
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asm volatile (
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" mov a8, %0 \n"
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@ -89,9 +131,10 @@ void test_naive_strcpy_a2(const char *string)
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" addi.n a8, a8, 1 \n"
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" bnez a2, tns_loop%=\n"
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: : "r" (buf), "r" (string) : "a2", "a8", "a9");
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return dramtest;
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}
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void test_naive_strcpy_a3(const char *string)
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static const char * test_naive_strcpy_a3(const char *string)
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{
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asm volatile (
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" mov a8, %0 \n"
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@ -102,9 +145,10 @@ void test_naive_strcpy_a3(const char *string)
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" addi.n a8, a8, 1 \n"
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" bnez a3, tns_loop%=\n"
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: : "r" (buf), "r" (string) : "a3", "a8", "a9");
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return TESTSTRING;
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}
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void test_naive_strcpy_a4(const char *string)
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static const char * test_naive_strcpy_a4(const char *string)
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{
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asm volatile (
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" mov a8, %0 \n"
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@ -115,9 +159,10 @@ void test_naive_strcpy_a4(const char *string)
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" addi.n a8, a8, 1 \n"
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" bnez a4, tns_loop%=\n"
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: : "r" (buf), "r" (string) : "a4", "a8", "a9");
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return TESTSTRING;
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}
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void test_naive_strcpy_a5(const char *string)
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static const char * test_naive_strcpy_a5(const char *string)
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{
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asm volatile (
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" mov a8, %0 \n"
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@ -128,9 +173,10 @@ void test_naive_strcpy_a5(const char *string)
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" addi.n a8, a8, 1 \n"
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" bnez a5, tns_loop%=\n"
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: : "r" (buf), "r" (string) : "a5", "a8", "a9");
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return TESTSTRING;
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}
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void test_naive_strcpy_a6(const char *string)
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static const char * test_naive_strcpy_a6(const char *string)
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{
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asm volatile (
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" mov a8, %0 \n"
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@ -141,102 +187,79 @@ void test_naive_strcpy_a6(const char *string)
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" addi.n a8, a8, 1 \n"
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" bnez a6, tns_loop%=\n"
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: : "r" (buf), "r" (string) : "a6", "a8", "a9");
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return TESTSTRING;
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}
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void test_l16si(const char *string)
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static const char * test_noop(const char *string)
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{
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/* This follows most of the l16si path, but as the
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values in the string are all 7 bit none of them get sign extended.
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See separate test_sign_extension function which validates
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sign extension works as expected.
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*/
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int16_t *src_int16 = (int16_t *)string;
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int32_t *dst_int32 = (int32_t *)buf;
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dst_int32[0] = src_int16[0];
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dst_int32[1] = src_int16[1];
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dst_int32[2] = src_int16[2];
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buf[0] = 0;
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return "";
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}
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#define TEST_REPEATS 1000
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void test_noop(const char *string)
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{
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}
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uint32_t IRAM run_test(const char *string, test_with_fn_t testfn, const char *testfn_label, uint32_t nullvalue, bool evict_cache)
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static uint32_t IRAM inner_string_test(const char *string, test_with_fn_t testfn, const char *testfn_label, uint32_t nullvalue, bool evict_cache)
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{
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printf(" .. against %30s: ", testfn_label);
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vPortEnterCritical();
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uint32_t before = get_ccount();
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uint32_t before;
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RSR(before, CCOUNT);
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const int TEST_REPEATS = 1000;
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for(int i = 0; i < TEST_REPEATS; i++) {
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testfn(string);
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memset(buf, 0, sizeof(buf));
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const char *expected = testfn(string);
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TEST_ASSERT_EQUAL_STRING_MESSAGE(expected, buf, testfn_label);
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if(evict_cache) {
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Cache_Read_Disable();
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Cache_Read_Enable(0,0,1);
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}
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}
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uint32_t after = get_ccount();
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uint32_t after;
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RSR(after, CCOUNT);
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vPortExitCritical();
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uint32_t instructions = (after-before)/TEST_REPEATS - nullvalue;
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printf("%5d instructions\r\n", instructions);
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return instructions;
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}
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void test_string(const char *string, char *label, bool evict_cache)
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static void string_test(const char *string, char *label, bool evict_cache)
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{
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printf("Testing %s (%p) '%s'\r\n", label, string, string);
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printf("Formats as: '");
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printf(string, 1, 2, 3);
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printf("'\r\n");
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uint32_t nullvalue = run_test(string, test_noop, "null op", 0, evict_cache);
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run_test(string, test_memcpy_aligned, "memcpy - aligned len", nullvalue, evict_cache);
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run_test(string, test_memcpy_unaligned, "memcpy - unaligned len", nullvalue, evict_cache);
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run_test(string, test_memcpy_unaligned2, "memcpy - unaligned start&len", nullvalue, evict_cache);
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run_test(string, test_strcpy, "strcpy", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy, "naive strcpy", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy_a0, "naive strcpy (a0)", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy_a2, "naive strcpy (a2)", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy_a3, "naive strcpy (a3)", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy_a4, "naive strcpy (a4)", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy_a5, "naive strcpy (a5)", nullvalue, evict_cache);
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run_test(string, test_naive_strcpy_a6, "naive strcpy (a6)", nullvalue, evict_cache);
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run_test(string, test_sprintf, "sprintf", nullvalue, evict_cache);
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run_test(string, test_sprintf_arg, "sprintf format arg", nullvalue, evict_cache);
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run_test(string, test_l16si, "load as l16si", nullvalue, evict_cache);
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uint32_t nullvalue = inner_string_test(string, test_noop, "null op", 0, evict_cache);
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inner_string_test(string, test_memcpy_aligned, "memcpy - aligned len", nullvalue, evict_cache);
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inner_string_test(string, test_memcpy_unaligned, "memcpy - unaligned len", nullvalue, evict_cache);
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inner_string_test(string, test_memcpy_unaligned2, "memcpy - unaligned start&len", nullvalue, evict_cache);
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inner_string_test(string, test_strcpy, "strcpy", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy, "naive strcpy", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy_a0, "naive strcpy (a0)", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy_a2, "naive strcpy (a2)", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy_a3, "naive strcpy (a3)", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy_a4, "naive strcpy (a4)", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy_a5, "naive strcpy (a5)", nullvalue, evict_cache);
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inner_string_test(string, test_naive_strcpy_a6, "naive strcpy (a6)", nullvalue, evict_cache);
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inner_string_test(string, test_sprintf, "sprintf", nullvalue, evict_cache);
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inner_string_test(string, test_sprintf_arg, "sprintf format arg", nullvalue, evict_cache);
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}
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static void test_isr();
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static void test_sign_extension();
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static void test_system_interaction();
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void sanity_tests(void);
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DEFINE_SOLO_TESTCASE(03_byte_load_test_strings)
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void user_init(void)
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/* Test various operations on strings in various regions */
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static void a_03_byte_load_test_strings()
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{
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uart_set_baud(0, 115200);
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gpio_enable(2, GPIO_OUTPUT); /* used for LED debug */
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gpio_write(2, 1); /* active low */
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printf("\r\n\r\nSDK version:%s\r\n", sdk_system_get_sdk_version());
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sanity_tests();
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test_string(dramtest, "DRAM", 0);
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test_string(iramtest, "IRAM", 0);
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test_string(iromtest, "Cached flash", 0);
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test_string(iromtest, "'Uncached' flash", 1);
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test_isr();
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test_sign_extension();
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xTaskHandle taskHandle;
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xTaskCreate(test_system_interaction, (signed char *)"interactionTask", 256, &taskHandle, 2, NULL);
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string_test(dramtest, "DRAM", 0);
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string_test(iramtest, "IRAM", 0);
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string_test(iromtest, "Cached flash", 0);
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string_test(iromtest, "'Uncached' flash", 1);
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TEST_PASS();
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}
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static volatile bool frc1_ran;
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static volatile bool frc1_finished;
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static volatile char frc1_buf[80];
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DEFINE_SOLO_TESTCASE(03_byte_load_test_isr)
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static void frc1_interrupt_handler(void)
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{
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frc1_ran = true;
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@ -245,7 +268,8 @@ static void frc1_interrupt_handler(void)
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frc1_finished = true;
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}
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static void test_isr()
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/* Verify that the unaligned loader can run inside an ISR */
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static void a_03_byte_load_test_isr()
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{
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printf("Testing behaviour inside ISRs...\r\n");
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timer_set_interrupts(FRC1, false);
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@ -257,26 +281,27 @@ static void test_isr()
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sdk_os_delay_us(2000);
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if(!frc1_ran)
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printf("ERROR: FRC1 timer exception never fired.\r\n");
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TEST_FAIL_MESSAGE("ERROR: FRC1 timer exception never fired.\r\n");
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else if(!frc1_finished)
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printf("ERROR: FRC1 timer exception never finished.\r\n");
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TEST_FAIL_MESSAGE("ERROR: FRC1 timer exception never finished.\r\n");
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else if(strcmp((char *)frc1_buf, iramtest))
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printf("ERROR: FRC1 strcpy from IRAM failed.\r\n");
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TEST_FAIL_MESSAGE("ERROR: FRC1 strcpy from IRAM failed.\r\n");
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else
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printf("PASSED\r\n");
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TEST_PASS();
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}
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const volatile __attribute__((section(".iram1.notliterals"))) int16_t unsigned_shorts[] = { -3, -4, -5, -32767, 44 };
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DEFINE_SOLO_TESTCASE(03_byte_load_test_sign_extension)
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static void test_sign_extension()
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static void a_03_byte_load_test_sign_extension()
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{
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/* this step seems to be necessary so the compiler will actually generate l16si */
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int16_t *shorts_p = (int16_t *)unsigned_shorts;
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if(shorts_p[0] == -3 && shorts_p[1] == -4 && shorts_p[2] == -5 && shorts_p[3] == -32767 && shorts_p[4] == 44)
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{
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printf("l16si sign extension PASSED.\r\n");
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TEST_PASS();
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} else {
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printf("ERROR: l16si sign extension failed. Got values %d %d %d %d %d\r\n", shorts_p[0], shorts_p[1], shorts_p[2], shorts_p[3], shorts_p[4]);
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sprintf(buf, "l16si sign extension failed. Got values %d %d %d %d %d\r\n", shorts_p[0], shorts_p[1], shorts_p[2], shorts_p[3], shorts_p[4]);
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TEST_FAIL_MESSAGE(buf);
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}
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}
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@ -285,11 +310,13 @@ static void test_sign_extension()
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The following tests run inside a FreeRTOS task, after everything else.
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*/
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static void test_system_interaction()
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DEFINE_SOLO_TESTCASE(03_byte_load_test_system_interaction);
|
||||
|
||||
static void task_load_test_system_interaction()
|
||||
{
|
||||
uint32_t start = xTaskGetTickCount();
|
||||
printf("Starting system/timer interaction test (takes approx 30 seconds)...\n");
|
||||
for(int i = 0; i < 200*1000; i++) {
|
||||
printf("Starting system/timer interaction test (takes approx 1 second)...\n");
|
||||
for(int i = 0; i < 5000; i++) {
|
||||
test_naive_strcpy_a0(iromtest);
|
||||
test_naive_strcpy_a2(iromtest);
|
||||
test_naive_strcpy_a3(iromtest);
|
||||
|
|
@ -304,13 +331,22 @@ static void test_system_interaction()
|
|||
*/
|
||||
}
|
||||
uint32_t ticks = xTaskGetTickCount() - start;
|
||||
printf("Timer interaction test PASSED after %dms.\n", ticks*portTICK_RATE_MS);
|
||||
while(1) {}
|
||||
printf("Timer interaction test PASSED after %d ticks.\n", ticks);
|
||||
TEST_PASS();
|
||||
}
|
||||
|
||||
static void a_03_byte_load_test_system_interaction()
|
||||
{
|
||||
xTaskCreate(task_load_test_system_interaction, (signed char *)"interactionTask", 256, NULL, 2, NULL);
|
||||
while(1) {
|
||||
vTaskDelay(100);
|
||||
}
|
||||
}
|
||||
|
||||
/* The following "sanity tests" are designed to try to execute every code path
|
||||
* of the LoadStoreError handler, with a variety of offsets and data values
|
||||
* designed to catch any mask/shift errors, sign-extension bugs, etc */
|
||||
DEFINE_SOLO_TESTCASE(03_byte_load_test_sanity)
|
||||
|
||||
/* (Contrary to expectations, 'mov a15, a15' in Xtensa is not technically a
|
||||
* no-op, but is officially "undefined and reserved for future use", so we need
|
||||
|
|
@ -339,17 +375,13 @@ static void test_system_interaction()
|
|||
if (result != value) sanity_test_failed(op, reg, addr, value, result); \
|
||||
}
|
||||
|
||||
void sanity_test_failed(const char *testname, const char *reg, const void *addr, int32_t value, int32_t result) {
|
||||
static void sanity_test_failed(const char *testname, const char *reg, const void *addr, int32_t value, int32_t result) {
|
||||
uint32_t actual_data = *(uint32_t *)((uint32_t)addr & 0xfffffffc);
|
||||
|
||||
printf("*** SANITY TEST FAILED: '%s %s' from %p (underlying 32-bit value: 0x%x): Expected 0x%08x (%d), got 0x%08x (%d)\n", testname, reg, addr, actual_data, value, value, result, result);
|
||||
sprintf(buf, "%s %s from %p (32-bit value: 0x%x): Expected 0x%08x (%d), got 0x%08x (%d)\n", testname, reg, addr, actual_data, value, value, result, result);
|
||||
TEST_FAIL_MESSAGE(buf);
|
||||
}
|
||||
|
||||
const __attribute__((section(".iram1.notrodata"))) char sanity_test_data[] = {
|
||||
0x01, 0x55, 0x7e, 0x2a, 0x81, 0xd5, 0xfe, 0xaa
|
||||
};
|
||||
|
||||
void sanity_test_l8ui(const void *addr, int32_t value) {
|
||||
static void sanity_test_l8ui(const void *addr, int32_t value) {
|
||||
TEST_LOAD("l8ui", "a0", addr, value);
|
||||
TEST_LOAD("l8ui", "a1", addr, value);
|
||||
TEST_LOAD("l8ui", "a2", addr, value);
|
||||
|
|
@ -368,7 +400,7 @@ void sanity_test_l8ui(const void *addr, int32_t value) {
|
|||
TEST_LOAD("l8ui", "a15", addr, value);
|
||||
}
|
||||
|
||||
void sanity_test_l16ui(const void *addr, int32_t value) {
|
||||
static void sanity_test_l16ui(const void *addr, int32_t value) {
|
||||
TEST_LOAD("l16ui", "a0", addr, value);
|
||||
TEST_LOAD("l16ui", "a1", addr, value);
|
||||
TEST_LOAD("l16ui", "a2", addr, value);
|
||||
|
|
@ -387,7 +419,7 @@ void sanity_test_l16ui(const void *addr, int32_t value) {
|
|||
TEST_LOAD("l16ui", "a15", addr, value);
|
||||
}
|
||||
|
||||
void sanity_test_l16si(const void *addr, int32_t value) {
|
||||
static void sanity_test_l16si(const void *addr, int32_t value) {
|
||||
TEST_LOAD("l16si", "a0", addr, value);
|
||||
TEST_LOAD("l16si", "a1", addr, value);
|
||||
TEST_LOAD("l16si", "a2", addr, value);
|
||||
|
|
@ -406,7 +438,7 @@ void sanity_test_l16si(const void *addr, int32_t value) {
|
|||
TEST_LOAD("l16si", "a15", addr, value);
|
||||
}
|
||||
|
||||
void sanity_tests(void) {
|
||||
static void a_03_byte_load_test_sanity(void) {
|
||||
printf("== Performing sanity tests (sanity_test_data @ %p)...\n", sanity_test_data);
|
||||
|
||||
sanity_test_l8ui(sanity_test_data + 0, 0x01);
|
||||
|
|
@ -429,4 +461,5 @@ void sanity_tests(void) {
|
|||
sanity_test_l16si(sanity_test_data + 6, -21762);
|
||||
|
||||
printf("== Sanity tests completed.\n");
|
||||
TEST_PASS();
|
||||
}
|
||||
Loading…
Reference in a new issue