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Nicer paging panics

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This commit is contained in:
Sparchatus 2022-05-20 06:32:09 +00:00
parent cdd9d3f75e
commit 937c6fb701
1 changed files with 12 additions and 7 deletions
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19
lib/aos/paging.c
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@ -108,7 +108,9 @@ static void pt_exception_handler(enum exception_type type, int subtype,
// abort on NULL pointer dereference // abort on NULL pointer dereference
if(addr < (void *) VADDR_LOWEST_NON_NULL) { if(addr < (void *) VADDR_LOWEST_NON_NULL) {
USER_PANIC("[ERROR] NULL pointer dereference"); static char str[256];
snprintf(str, sizeof(str), "[ERROR] NULL pointer dereference: addr=%p, ip=%p\n", addr, ip);
USER_PANIC(str);
} }
lvaddr_t page_addr = ROUND_DOWN((lvaddr_t)addr, BASE_PAGE_SIZE); lvaddr_t page_addr = ROUND_DOWN((lvaddr_t)addr, BASE_PAGE_SIZE);
@ -125,19 +127,22 @@ static void pt_exception_handler(enum exception_type type, int subtype,
} }
} }
if (vaddr_reg == NULL) { if (vaddr_reg == NULL) {
debug_printf("[pt_exception_handler] type=%s, addr=%p, ip=%p, page_addr=0x%x\n", pt_exception_type_to_string(type, subtype), addr, ip, page_addr);
thread_mutex_unlock(&st->lock); thread_mutex_unlock(&st->lock);
USER_PANIC("[pt_exception_handler][ERROR] Page fault ouside valid virtual address space"); static char str[256];
snprintf(str, sizeof(str), "[ERROR] Page fault ouside valid virtual address space: type=%s, addr=%p, ip=%p, page_addr=0x%x\n", pt_exception_type_to_string(type, subtype), addr, ip, page_addr);
USER_PANIC(str);
} }
if (vaddr_reg->free) { if (vaddr_reg->free) {
debug_printf("[pt_exception_handler] type=%s, addr=%p, ip=%p, page_addr=0x%x, base=0x%x, size=0x%x\n", pt_exception_type_to_string(type, subtype), addr, ip, page_addr, vaddr_reg->base, vaddr_reg->size);
thread_mutex_unlock(&st->lock); thread_mutex_unlock(&st->lock);
USER_PANIC("[pt_exception_handler][ERROR] Page fault ouside allocated address space"); static char str[256];
snprintf(str, sizeof(str), "[ERROR] Page fault ouside allocated address space: type=%s, addr=%p, ip=%p, page_addr=0x%x, base=0x%x, size=0x%x\n", pt_exception_type_to_string(type, subtype), addr, ip, page_addr, vaddr_reg->base, vaddr_reg->size);
USER_PANIC(str);
} }
if (!vaddr_reg->heap) { if (!vaddr_reg->heap) {
debug_printf("[pt_exception_handler] type=%s, addr=%p, ip=%p\n", pt_exception_type_to_string(type, subtype), addr, ip);
thread_mutex_unlock(&st->lock); thread_mutex_unlock(&st->lock);
USER_PANIC("[ERROR] Page fault in allocated address space but outside heap"); static char str[256];
snprintf(str, sizeof(str), "[ERROR] Page fault in allocated address space but outside heap: type=%s, addr=%p, ip=%p\n", pt_exception_type_to_string(type, subtype), addr, ip);
USER_PANIC(str);
} }
if (is_mapped(st, page_addr)) { if (is_mapped(st, page_addr)) {