On 10:02 Mon 30 Jul , Sascha Hauer wrote:
> On Fri, Jul 27, 2012 at 08:33:08PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > This is not needed by lzo but by gunzip, xz and others.
> >
> > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
> > ---
> > arch/arm/cpu/start.c | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
> > index a54f5fd..f500ca8 100644
> > --- a/arch/arm/cpu/start.c
> > +++ b/arch/arm/cpu/start.c
> > @@ -28,6 +28,9 @@
> > #include <asm-generic/memory_layout.h>
> > #include <asm/sections.h>
> >
> > +unsigned long free_mem_ptr;
> > +unsigned long free_mem_end_ptr;
> > +
> > #ifdef CONFIG_PBL_IMAGE
> > void __naked __section(.text_head_entry) pbl_start(void)
> > {
> > @@ -193,6 +196,10 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
> > /* clear bss */
> > memset(__bss_start, 0, __bss_stop - __bss_start);
> >
> > + /* set 128 KiB before the STACK_BASE - 16 address for early malloc */
> > + free_mem_ptr = STACK_BASE - 0x20000 - 16;
> > + free_mem_end_ptr = STACK_BASE - 16;
> > +
>
> This assumes that the malloc area is directly before the stack. How
> about using __bss_stop or _end instead?
it's just for early alloc and __bss_stop no so maybe we can use the same as
Malloc but we already use this for HEAD_TEXT_BASE
Best Regards,
J.
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