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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2019-12-13 06:18:36 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-02-04 06:06:41 +0100 |
| commit | eea21eaca117ecd98afea164e1808d6530ef487f (patch) | |
| tree | ca4e15da28b71a5ecca5fc357798261a39b3f250 /bsps/shared/start/bootcard.c | |
| parent | bsps: Remove uses of BSP_GET_WORK_AREA_DEBUG (diff) | |
| download | rtems-eea21eaca117ecd98afea164e1808d6530ef487f.tar.bz2 | |
bsps: Rework work area initialization
The work area initialization was done by the BSP through
bsp_work_area_initialize(). This approach predated the system
initialization through the system initialization linker set. The
workspace and C program heap were unconditionally initialized. The aim
is to support RTEMS application configurations which do not need the
workspace and C program heap. In these configurations, the workspace
and C prgram heap should not get initialized.
Change all bsp_work_area_initialize() to implement _Memory_Get()
instead. Move the dirty memory, sbrk(), per-CPU data, workspace, and
malloc() heap initialization into separate system initialization steps.
This makes it also easier to test the individual initialization steps.
This change adds a dependency to _Heap_Extend() to all BSPs. This
dependency will be removed in a follow up change.
Update #3838.
Diffstat (limited to 'bsps/shared/start/bootcard.c')
| -rw-r--r-- | bsps/shared/start/bootcard.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/bsps/shared/start/bootcard.c b/bsps/shared/start/bootcard.c index a6ad1953c0..2eef1ea710 100644 --- a/bsps/shared/start/bootcard.c +++ b/bsps/shared/start/bootcard.c @@ -24,11 +24,18 @@ */ const char *bsp_boot_cmdline; +#if BSP_DIRTY_MEMORY == 1 +static void bsp_dirty_memory(void) +{ + _Memory_Fill( _Memory_Get(), 0xcf ); +} + RTEMS_SYSINIT_ITEM( - bsp_work_area_initialize, - RTEMS_SYSINIT_BSP_WORK_AREAS, + bsp_dirty_memory, + RTEMS_SYSINIT_DIRTY_MEMORY, RTEMS_SYSINIT_ORDER_MIDDLE ); +#endif RTEMS_SYSINIT_ITEM( bsp_start, |