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| author | Peter Tyser <ptyser@xes-inc.com> | 2009-08-21 23:05:19 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-09-04 21:45:39 +0200 |
| commit | 5e93bd1c9aaea886c5e5c7c1b6114ab36c30668f (patch) | |
| tree | ec61a4a1610baf8ebfad8fc08688c393368c4dbd /common/dlmalloc.c | |
| parent | 65f6f07b72a71b83d775c4d20d7ebcd6b2d2086d (diff) | |
| download | u-boot-imx-5e93bd1c9aaea886c5e5c7c1b6114ab36c30668f.zip u-boot-imx-5e93bd1c9aaea886c5e5c7c1b6114ab36c30668f.tar.gz u-boot-imx-5e93bd1c9aaea886c5e5c7c1b6114ab36c30668f.tar.bz2 | |
Consolidate arch-specific sbrk() implementations
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'common/dlmalloc.c')
| -rw-r--r-- | common/dlmalloc.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/common/dlmalloc.c b/common/dlmalloc.c index 4a18562..f3bced4 100644 --- a/common/dlmalloc.c +++ b/common/dlmalloc.c @@ -1502,7 +1502,23 @@ void malloc_bin_reloc (void) *p++ += gd->reloc_off; } } - + +ulong mem_malloc_start = 0; +ulong mem_malloc_end = 0; +ulong mem_malloc_brk = 0; + +void *sbrk(ptrdiff_t increment) +{ + ulong old = mem_malloc_brk; + ulong new = old + increment; + + if ((new < mem_malloc_start) || (new > mem_malloc_end)) + return NULL; + + mem_malloc_brk = new; + + return (void *)old; +} /* field-extraction macros */ |