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* Added optional tracing for allocations.

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* Lifted hard-coded 64 KB heap limit.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27679 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2008-09-21 21:42:17 +00:00
parent 6152a5bc58
commit 5a150dfe6d
1 changed files with 15 additions and 2 deletions
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17
src/system/boot/loader/heap.cpp
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@ -15,6 +15,14 @@
#include <string.h>
//#define TRACE_HEAP
#ifdef TRACE_HEAP
# define TRACE(format...) dprintf(format)
#else
# define TRACE(format...) do { } while (false)
#endif
/* This is a very simple malloc()/free() implementation - it only
* manages a free list.
* After heap_init() is called, all free memory is contained in one
@ -288,6 +296,7 @@ malloc(size_t size)
sAvailable -= size + sizeof(uint32);
TRACE("malloc(%lu) -> %p\n", size, chunk->AllocatedAddress());
return chunk->AllocatedAddress();
}
@ -298,6 +307,7 @@ realloc(void *oldBuffer, size_t newSize)
// ToDo: improve this implementation!
if (newSize == 0) {
TRACE("realloc(%p, %lu) -> NULL\n", oldBuffer, newSize);
free(oldBuffer);
return NULL;
}
@ -316,6 +326,7 @@ realloc(void *oldBuffer, size_t newSize)
free(oldBuffer);
}
TRACE("realloc(%p, %lu) -> %p\n", oldBuffer, newSize, newBuffer);
return newBuffer;
}
@ -326,15 +337,17 @@ free(void *allocated)
if (allocated == NULL)
return;
TRACE("free(%p)\n", allocated);
free_chunk *freedChunk = free_chunk::SetToAllocated(allocated);
#ifdef DEBUG_ALLOCATIONS
if (freedChunk->size > 65536)
if (freedChunk->size > sMaxHeapSize)
panic("freed chunk %p clobbered (%lx)!\n", freedChunk, freedChunk->size);
{
free_chunk *chunk = sFreeAnchor.next;
while (chunk) {
if (chunk->size > 65536 || freedChunk == chunk)
if (chunk->size > sMaxHeapSize || freedChunk == chunk)
panic("invalid chunk in free list, or double free\n");
chunk = chunk->next;
}