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authorH. Peter Anvin <hpa@zytor.com>2009-06-07 15:12:39 -0700
committerH. Peter Anvin <hpa@zytor.com>2009-06-07 15:12:39 -0700
commitf05ef9550d95c4ea386bd1879e0e03e81fd0a951 (patch)
tree30f0448ba9152919850e72e62dd2be7b761866bc /memdisk
parentf6665369b2ccf30bbb334b7ff20ebaac07c10a3e (diff)
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memdisk: move the heap to high memory
Instead of using a heap arbitrarily allocated in low memory, move it to a chunk of bss in high memory. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'memdisk')
-rw-r--r--memdisk/unzip.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/memdisk/unzip.c b/memdisk/unzip.c
index 9f198a20..c4b56efb 100644
--- a/memdisk/unzip.c
+++ b/memdisk/unzip.c
@@ -349,12 +349,14 @@ int check_zip(void *indata, uint32_t size, uint32_t * zbytes_p,
*/
extern void _end;
+static char heap[65536];
+
void *unzip(void *indata, uint32_t zbytes, uint32_t dbytes,
uint32_t orig_crc, void *target)
{
- /* Set up the heap; it's the 64K after the bounce buffer */
- free_mem_ptr = (ulg) sys_bounce + 0x10000;
- free_mem_end_ptr = free_mem_ptr + 0x10000;
+ /* Set up the heap; it is simply a chunk of bss memory */
+ free_mem_ptr = (size_t)heap;
+ free_mem_end_ptr = (size_t)heap + sizeof heap;
/* Set up input buffer */
inbuf = indata;