2020-06-15 afbjorklund
Tiny Core Linux 11.1
The first update to Tiny Core 11.x is out, release notes on the tinycore forum
Kernel: 5.4.3
As usual there are x86 and x86_64, but we only care about the 64-bit.
16M CorePure64-11.1.iso
piCore 11.0 (armv7l)
Also the first update since piCore 9.0 (2017), was released on tinycore forum
Kernel: 4.19.81
There is no 64-bit aarch64 version yet, but still very good news indeed.
89M piCore-11.0.zip
Raspberry Pi variants
Note that the Raspberry Pi model 3 and 4 actually have an ARMv8-A CPU.
But currently piCore (and Raspbian) runs the more compatible 32-bit.
piCore
| RPi | Arch | Kernel | Flags |
|---|---|---|---|
| 0-1 | armv6 |
bcmrpi_defconfig | CFLAGS=”-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp” |
| 2-3 | armv7 |
bcm2709_defconfig | CFLAGS=”-mcpu=cortex-a7” |
| 4 | armv7l |
bcm2711_defconfig | CFLAGS=”-mcpu=cortex-a7” |
Source: https://www.raspberrypi.org/documentation/linux/kernel/building.md
CFLAGS
| Board | GCC optimisation flags |
|---|---|
| Raspberry Pi 1 | -mcpu=arm1176jzf-s -mfloat-abi=hard -mfpu=vfp (alias for vfpv2) |
| Raspberry Pi 2 | -mcpu=cortex-a7 -mfloat-abi=hard -mfpu=neon-vfpv4 |
| Raspberry Pi 3 | -mcpu=cortex-a53 -mfloat-abi=hard -mfpu=neon-fp-armv8 -mneon-for-64bits |
| Raspberry Pi 4 | -mcpu=cortex-a72 -mfloat-abi=hard -mfpu=neon-fp-armv8 -mneon-for-64bits |