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fusee/sept: ensure proper array initialization in exception handling

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This commit is contained in:
hexkyz 2020-07-14 18:58:19 +01:00
parent fef8a4918e
commit f71ad5ac2c
3 changed files with 21 additions and 21 deletions
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14
fusee/fusee-primary/src/exception_handlers.c
View File

@ -38,7 +38,7 @@ static const char *register_names[] = {
/* Adapted from https://gist.github.com/ccbrown/9722406 */
static void hexdump(const void* data, size_t size, uintptr_t addrbase, char* strbuf) {
const uint8_t *d = (const uint8_t *)data;
char ascii[17];
char ascii[17] = {0};
ascii[16] = '\0';
for (size_t i = 0; i < size; i++) {
@ -79,17 +79,17 @@ void setup_exception_handlers(void) {
}
void exception_handler_main(uint32_t *registers, unsigned int exception_type) {
char exception_log[0x400];
uint8_t code_dump[CODE_DUMP_SIZE];
uint8_t stack_dump[STACK_DUMP_SIZE];
size_t code_dump_size;
size_t stack_dump_size;
char exception_log[0x400] = {0};
uint8_t code_dump[CODE_DUMP_SIZE] = {0};
uint8_t stack_dump[STACK_DUMP_SIZE] = {0};
size_t code_dump_size = 0;
size_t stack_dump_size = 0;
uint32_t pc = registers[15];
uint32_t cpsr = registers[16];
uint32_t instr_addr = pc + ((cpsr & 0x20) ? 2 : 4) - CODE_DUMP_SIZE;
sprintf(exception_log + strlen(exception_log), "An exception occured!\n");
sprintf(exception_log, "An exception occured!\n");
code_dump_size = safecpy(code_dump, (const void *)instr_addr, CODE_DUMP_SIZE);
stack_dump_size = safecpy(stack_dump, (const void *)registers[13], STACK_DUMP_SIZE);

14
fusee/fusee-secondary/src/exception_handlers.c
View File

@ -39,7 +39,7 @@ static const char *register_names[] = {
/* Adapted from https://gist.github.com/ccbrown/9722406 */
static void hexdump(const void* data, size_t size, uintptr_t addrbase, char* strbuf) {
const uint8_t *d = (const uint8_t *)data;
char ascii[17];
char ascii[17] = {0};
ascii[16] = '\0';
for (size_t i = 0; i < size; i++) {
@ -80,17 +80,17 @@ void setup_exception_handlers(void) {
}
void exception_handler_main(uint32_t *registers, unsigned int exception_type) {
char exception_log[0x400];
uint8_t code_dump[CODE_DUMP_SIZE];
uint8_t stack_dump[STACK_DUMP_SIZE];
size_t code_dump_size;
size_t stack_dump_size;
char exception_log[0x400] = {0};
uint8_t code_dump[CODE_DUMP_SIZE] = {0};
uint8_t stack_dump[STACK_DUMP_SIZE] = {0};
size_t code_dump_size = 0;
size_t stack_dump_size = 0;
uint32_t pc = registers[15];
uint32_t cpsr = registers[16];
uint32_t instr_addr = pc + ((cpsr & 0x20) ? 2 : 4) - CODE_DUMP_SIZE;
sprintf(exception_log + strlen(exception_log), "An exception occured!\n");
sprintf(exception_log, "An exception occured!\n");
code_dump_size = safecpy(code_dump, (const void *)instr_addr, CODE_DUMP_SIZE);
stack_dump_size = safecpy(stack_dump, (const void *)registers[13], STACK_DUMP_SIZE);

14
sept/sept-secondary/src/exception_handlers.c
View File

@ -38,7 +38,7 @@ static const char *register_names[] = {
/* Adapted from https://gist.github.com/ccbrown/9722406 */
static void hexdump(const void* data, size_t size, uintptr_t addrbase, char* strbuf) {
const uint8_t *d = (const uint8_t *)data;
char ascii[17];
char ascii[17] = {0};
ascii[16] = '\0';
for (size_t i = 0; i < size; i++) {
@ -79,17 +79,17 @@ void setup_exception_handlers(void) {
}
void exception_handler_main(uint32_t *registers, unsigned int exception_type) {
char exception_log[0x400];
uint8_t code_dump[CODE_DUMP_SIZE];
uint8_t stack_dump[STACK_DUMP_SIZE];
size_t code_dump_size;
size_t stack_dump_size;
char exception_log[0x400] = {0};
uint8_t code_dump[CODE_DUMP_SIZE] = {0};
uint8_t stack_dump[STACK_DUMP_SIZE] = {0};
size_t code_dump_size = 0;
size_t stack_dump_size = 0;
uint32_t pc = registers[15];
uint32_t cpsr = registers[16];
uint32_t instr_addr = pc + ((cpsr & 0x20) ? 2 : 4) - CODE_DUMP_SIZE;
sprintf(exception_log + strlen(exception_log), "An exception occured!\n");
sprintf(exception_log, "An exception occured!\n");
code_dump_size = safecpy(code_dump, (const void *)instr_addr, CODE_DUMP_SIZE);
stack_dump_size = safecpy(stack_dump, (const void *)registers[13], STACK_DUMP_SIZE);