Crash_Override/OVMS3-idf
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

multi_heap_poisoning: Use MULTI_HEAP_STDERR_PRINTF (ets_printf) to print heap errors

Browse source 
Needed because normal printf() can trigger a malloc() (for standard stream locks) which
then re-triggers this check.
This commit is contained in:
Angus Gratton 2017-09-18 16:54:28 +10:00 committed by Angus Gratton
parent 76d8190444
commit 959462ffb6
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
components/heap/multi_heap_poisoning.c
View file

@ -92,7 +92,7 @@ static poison_head_t *verify_allocated_region(void *data, bool print_errors)
/* check if the beginning of the data was overwritten */
if (head->head_canary != HEAD_CANARY_PATTERN) {
if (print_errors) {
printf("CORRUPT HEAP: Bad head at %p. Expected 0x%08x got 0x%08x\n", &head->head_canary,
MULTI_HEAP_STDERR_PRINTF("CORRUPT HEAP: Bad head at %p. Expected 0x%08x got 0x%08x\n", &head->head_canary,
HEAD_CANARY_PATTERN, head->head_canary);
}
return NULL;
@ -142,7 +142,7 @@ static bool verify_fill_pattern(void *data, size_t size, bool print_errors, bool
while (size >= 4) {
if (*p != EXPECT_WORD) {
if (print_errors) {
printf("Invalid data at %p. Expected 0x%08x got 0x%08x\n", p, EXPECT_WORD, *p);
MULTI_HEAP_STDERR_PRINTF("CORRUPT HEAP: Invalid data at %p. Expected 0x%08x got 0x%08x\n", p, EXPECT_WORD, *p);
}
valid = false;
}
@ -159,7 +159,7 @@ static bool verify_fill_pattern(void *data, size_t size, bool print_errors, bool
for (int i = 0; i < size; i++) {
if (p[i] != (uint8_t)EXPECT_WORD) {
if (print_errors) {
printf("Invalid data at %p. Expected 0x%02x got 0x%02x\n", p, (uint8_t)EXPECT_WORD, *p);
MULTI_HEAP_STDERR_PRINTF("CORRUPT HEAP: Invalid data at %p. Expected 0x%02x got 0x%02x\n", p, (uint8_t)EXPECT_WORD, *p);
}
valid = false;
}
@ -315,7 +315,7 @@ bool multi_heap_internal_check_block_poisoning(void *start, size_t size, bool is
/* block can be bigger than alloc_size, for reasons of alignment & fragmentation,
but block can never be smaller than head->alloc_size... */
if (print_errors) {
printf("CORRUPT HEAP: Size at %p expected <=0x%08x got 0x%08x\n", &head->alloc_size,
MULTI_HEAP_STDERR_PRINTF("CORRUPT HEAP: Size at %p expected <=0x%08x got 0x%08x\n", &head->alloc_size,
size - POISON_OVERHEAD, head->alloc_size);
}
return false;