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author | Peter Tyser <ptyser@xes-inc.com> | 2009-08-21 23:05:19 -0500 |
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committer | Tom Rix <Tom.Rix@windriver.com> | 2009-10-03 09:04:08 -0500 |
commit | d870552ee4b83842e23cbd64a3a38b277136d568 (patch) | |
tree | 6f405324c08823032ec97e166460a774648e98d2 /common | |
parent | 2c17527f506564499e9aac82c8d778ac12b83c5f (diff) | |
download | u-boot-imx-d870552ee4b83842e23cbd64a3a38b277136d568.zip u-boot-imx-d870552ee4b83842e23cbd64a3a38b277136d568.tar.gz u-boot-imx-d870552ee4b83842e23cbd64a3a38b277136d568.tar.bz2 |
Consolidate arch-specific sbrk() implementations
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'common')
-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 */ |