On 03/03/2021 23:08, Gedare Bloom wrote:
I think it is just invalid to shrink the stack size smaller than it is
requested.
If I call pthread_attr_setstacksize(), then "The stacksize attribute
shall define the minimum stack size (in bytes) allocated for the
created threads stack." I should not g
On Wed, Mar 3, 2021 at 12:38 PM Sebastian Huber
wrote:
>
> On 03/03/2021 19:31, Gedare Bloom wrote:
>
> >> Is there no guarantee that stack_size == config->stack_size?
> >>
> > Suppose an application requests a stack size with
> > config->stack_area = m*CPU_STACK_ALIGNMENT
> > config->stack_size =
-Original Message-
From: devel On Behalf Of Sebastian Huber
Sent: Wednesday, March 3, 2021 02:40
To: devel@rtems.org
Subject: [PATCH 4/4] score: Ensure stack alignment requirement
> diff --git a/cpukit/score/src/tlsallocsize.c b/cpukit/score/src/tlsallocsize.c
> index e785
On 03/03/2021 19:31, Gedare Bloom wrote:
Is there no guarantee that stack_size == config->stack_size?
Suppose an application requests a stack size with
config->stack_area = m*CPU_STACK_ALIGNMENT
config->stack_size = (n*CPU_STACK_ALIGNMENT - 1)
Then, you will get
stack_begin = config->stac
On Wed, Mar 3, 2021 at 11:20 AM Gedare Bloom wrote:
>
> On Wed, Mar 3, 2021 at 10:56 AM Sebastian Huber
> wrote:
> >
> >
> > On 03/03/2021 17:04, Gedare Bloom wrote:
> > >> +#if CPU_STACK_ALIGNMENT > CPU_HEAP_ALIGNMENT
> > >> + stack_align = CPU_STACK_ALIGNMENT;
> > >> + stack_begin = (char *)
On Wed, Mar 3, 2021 at 10:56 AM Sebastian Huber
wrote:
>
>
> On 03/03/2021 17:04, Gedare Bloom wrote:
> >> +#if CPU_STACK_ALIGNMENT > CPU_HEAP_ALIGNMENT
> >> + stack_align = CPU_STACK_ALIGNMENT;
> >> + stack_begin = (char *) RTEMS_ALIGN_UP( (uintptr_t) stack_begin,
> >> stack_align );
> >> + s
On 03/03/2021 17:04, Gedare Bloom wrote:
+#if CPU_STACK_ALIGNMENT > CPU_HEAP_ALIGNMENT
+ stack_align = CPU_STACK_ALIGNMENT;
+ stack_begin = (char *) RTEMS_ALIGN_UP( (uintptr_t) stack_begin, stack_align
);
+ stack_end = (char *) RTEMS_ALIGN_DOWN( (uintptr_t) stack_end, stack_align );
Why ali
On Wed, Mar 3, 2021 at 1:40 AM Sebastian Huber
wrote:
>
> Make sure we meet the stack aligment requirement also for CPU ports with
> CPU_STACK_ALIGNMENT > CPU_HEAP_ALIGNMENT.
> ---
> cpukit/include/rtems/score/context.h | 3 +--
> cpukit/include/rtems/score/stackimpl.h | 9 +
> cpukit
Make sure we meet the stack aligment requirement also for CPU ports with
CPU_STACK_ALIGNMENT > CPU_HEAP_ALIGNMENT.
---
cpukit/include/rtems/score/context.h | 3 +--
cpukit/include/rtems/score/stackimpl.h | 9 +
cpukit/score/src/threadinitialize.c| 9 +
cpukit/score/src/tls
