- User/Kernel split
- 3 GB user, 1 GB kernel
- User split
- 1 MB unmapped for illegal access exceptions
.text,.rodata,.data, heap and stack- Heap is right after
.data - Stack is at the end of the available user RAM
- Heap and stack grow towards each other
- Kernel split
- 512 MB VideoCore RAM (reserved address space, actual RAM may be less)
- 64 MB memory-mapped devices
- 447 MB Kernel code (reserved address space, actual RAM may be less)
- 1 MB TLB, mailbox RAM, kernel RAM, interrupt vectors, kernel stacks
| Begin | Size | Flags | Description |
|---|---|---|---|
0x00000000 |
1 MB | --- |
--- |
0x00100000 |
.text |
R-X |
User .text |
0x00100000 + .text |
.rodata |
R-- |
User .rodata |
0x00100000 + .text + .rodata |
.data |
RW- |
User .data |
0x00100000 + .text + .rodata + .data |
All available | RW- |
User heap and stack |
0x00100000 + .text + .rodata +.data + heap + stack |
--- |
--- | |
0xc0000000 |
512 MB | RW- |
VideoCore IV (max) |
0xe0000000 |
32 MB | RW- |
BCM Peripherals, device, non-cacheable |
0xe2000000 |
32 MB | RW- |
Local peripherals, device, non-cacheable |
0xe4000000 |
447 MB | R-X |
Kernel code (max) |
0xfff00000 |
64 KB | RW- |
TLB |
0xfff10000 |
64 KB | RW- |
Mailbox RAM, non-cacheable |
0xfff20000 |
832 KB | RW- |
Kernel RAM |
0xffff0000 |
64 B | RW- |
Interrupt vectors |
0xffff0040 |
65472 B | RW- |
Abort, undefined, IRQ, and FIQ stacks |