Sinipelto
/
banan-os
forked from Bananymous/banan-os
1
0
Fork 0
Code Pull Requests Activity

Kernel: Improve kmalloc error messages

This commit is contained in:
Bananymous 2022-12-10 01:08:01 +02:00
parent 3d3f12bd30
commit 862b32d735
1 changed files with 13 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
kernel/kernel/kmalloc.cpp
View File

@ -1,7 +1,7 @@
#include <kernel/multiboot.h>
#include <kernel/kmalloc.h>
#include <kernel/panic.h>
#include <kernel/kprint.h>
#include <kernel/Serial.h>
#include <stdint.h>
@ -29,7 +29,7 @@ static size_t s_kmalloc_allocated = 0;
void kmalloc_initialize()
{
if (!(s_multiboot_info->flags & (1 << 6)))
Kernel::panic("Bootloader didn't give a memory map");
Kernel::panic("Kmalloc: Bootloader didn't give a memory map");
// Validate kmalloc memory
bool valid = false;
@ -39,13 +39,9 @@ void kmalloc_initialize()
if (mmmt->type == 1)
{
uint8_t* ptr1 = (uint8_t*)mmmt->base_addr;
uint8_t* ptr2 = (uint8_t*)s_kmalloc_base;
size_t len1 = mmmt->length;
size_t len2 = s_kmalloc_size;
if (ptr1 <= ptr2 && ptr1 + len1 >= ptr2 + len2)
if (mmmt->base_addr <= (uint64_t)s_kmalloc_base && (uint64_t)s_kmalloc_end <= mmmt->base_addr + mmmt->length)
{
dprintln("Total usable RAM: {} MB", (float)mmmt->length / MB);
valid = true;
break;
}
@ -55,7 +51,7 @@ void kmalloc_initialize()
}
if (!valid)
Kernel::panic("Could not find enough space for kmalloc");
Kernel::panic("Kmalloc: Could not find 1 MB of memory");
s_kmalloc_node_count = 1;
s_kmalloc_node_head = (kmalloc_node*)s_kmalloc_node_base;
@ -71,11 +67,14 @@ void kmalloc_initialize()
void kmalloc_dump_nodes()
{
dprintln("Kmalloc memory available {} MB", (float)s_kmalloc_available / MB);
dprintln("Kmalloc memory allocated {} MB", (float)s_kmalloc_allocated / MB);
dprintln("Using {}/{} nodes", s_kmalloc_node_count, s_kmalloc_max_nodes);
for (size_t i = 0; i < s_kmalloc_node_count; i++)
{
kmalloc_node& node = s_kmalloc_node_head[i];
if (i < 10) kprint(" ");
kprint(" ({}) {}, node at {}, free: {}, size: {}\n", i, (void*)&node, (void*)node.addr, node.free, node.size);
if (i < 10) dprint(" ");
dprintln(" ({}) {}, node at {}, free: {}, size: {}", i, (void*)&node, (void*)node.addr, node.free, node.size);
}
}
@ -95,7 +94,7 @@ void* kmalloc(size_t size)
if (valid_node_index == size_t(-1))
{
kprint("Could not allocate {} bytes\n", size);
dprintln("\e[33mKmalloc: Could not allocate {} bytes\e[0m", size);
return nullptr;
}
@ -111,7 +110,7 @@ void* kmalloc(size_t size)
if (s_kmalloc_node_count == s_kmalloc_max_nodes)
{
kprint("Out of kmalloc nodes\n");
dprintln("\e[33mKmalloc: Out of kmalloc nodes\e[0m");
return nullptr;
}
@ -152,7 +151,7 @@ void kfree(void* addr)
if (node_index == size_t(-1))
{
kprint("Attempting to free unallocated pointer {}\n", addr);
dprintln("\e[33mKmalloc: Attempting to free unallocated pointer {}\e[0m", addr);
return;
}