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app_shmem: create generic libc partition

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We need a generic name for the partition containing
essential C library globals. We're going to need to
add the stack canary guard to this area so user mode
can read it.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2019-02-21 13:44:54 -08:00 • committed by Anas Nashif
commit 17ce822ed9
5 changed files with 12 additions and 23 deletions
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12
lib/libc/newlib/libc-hooks.c
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@ -17,22 +17,14 @@
#include <app_memory/app_memdomain.h>
#include <init.h>
#ifdef CONFIG_APP_SHARED_MEM
K_APPMEM_PARTITION_DEFINE(z_newlib_partition);
#define LIBC_BSS K_APP_BMEM(z_newlib_partition)
#define LIBC_DATA K_APP_DMEM(z_newlib_partition)
#define LIBC_BSS K_APP_BMEM(z_libc_partition)
#define LIBC_DATA K_APP_DMEM(z_libc_partition)
#if CONFIG_NEWLIB_LIBC_ALIGNED_HEAP_SIZE
K_APPMEM_PARTITION_DEFINE(z_malloc_partition);
#define MALLOC_BSS K_APP_BMEM(z_malloc_partition)
#endif /* CONFIG_NEWLIB_LIBC_ALIGNED_HEAP_SIZE */
#else
#define LIBC_BSS
#define LIBC_DATA
#define MALLOC_BSS
#endif /* CONFIG_APP_SHARED_MEM */
#define USED_RAM_END_ADDR POINTER_TO_UINT(&_end)
#if CONFIG_NEWLIB_LIBC_ALIGNED_HEAP_SIZE