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MPU devices that enforce power-of-two alignment now specify the size of the buffer used for the newlib heap. This buffer will be properly aligned and a pointer exposed in a kernel header, such that it can be added to a user thread's memory domain configuration if necessary. MPU devices that don't have these restrictions allocate the heap as normal. In all cases, if an MPU/MMU region needs to be programmed, the z_newlib_get_heap_bounds() API will return the necessary information. Given how precious MPU regions are, no automatic programming of the MPU is done; applications will need to do this as needed in their memory domain configurations. On x86, the x86 MMU-specific code has been moved to arch/x86 using the new z_newlib_get_heap_bounds() API. Fixes: #6814 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com> |
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.. | ||
offsets | ||
cache_s.S | ||
cache.c | ||
CMakeLists.txt | ||
cpuhalt.c | ||
crt0.S | ||
excstub.S | ||
fatal.c | ||
float.c | ||
intstub.S | ||
irq_manage.c | ||
irq_offload.c | ||
Kconfig | ||
msr.c | ||
reboot_rst_cnt.c | ||
swap.S | ||
sys_fatal_error_handler.c | ||
thread.c | ||
userspace.S | ||
x86_mmu.c |