Add tiny build images

This adds Alpine based images that provide just enough software to build
for boards of a single architecture + `tinybuild-all`, which provides
the tools needed to build for all architectures except `native32` and
 ESP.

Author: maribu

tinybuild-all/Dockerfile

@@ -0,0 +1,28 @@
+FROM alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+# libucontext-dev requires some fixes for now
+RUN \
+    apk --no-cache add \
+        libucontext-dev \
+    && \
+    mv /usr/include/arch/common/libucontext/bits.h /usr/include/libucontext && \
+    rm -rf /usr/include/arch && \
+    apk --no-cache add \
+        gcc \
+        musl-dev \
+        linux-headers \
+        newlib-arm-none-eabi \
+        picolibc-arm-none-eabi \
+        newlib-riscv-none-elf \
+        picolibc-riscv-none-elf \
+        newlib-msp430-elf \
+        avr-libc \
+        python3 \
+        make \
+        unzip \
+        git

tinybuild-arm/Dockerfile

@@ -0,0 +1,15 @@
+FROM alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+RUN \
+    apk --no-cache add \
+        newlib-arm-none-eabi \
+        picolibc-arm-none-eabi \
+        python3 \
+        make \
+        unzip \
+        git

tinybuild-avr/Dockerfile

@@ -0,0 +1,14 @@
+FROM alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+RUN \
+    apk --no-cache add \
+        avr-libc \
+        python3 \
+        make \
+        unzip \
+        git

tinybuild-msp430/Dockerfile

@@ -0,0 +1,14 @@
+FROM alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+RUN \
+    apk --no-cache add \
+        newlib-msp430-elf \
+        python3 \
+        make \
+        unzip \
+        git

tinybuild-native32/Dockerfile

@@ -0,0 +1,22 @@
+FROM i386/alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+# libucontext-dev requires some fixes for now
+RUN \
+    apk --no-cache add \
+        libucontext-dev \
+    && \
+    mv /usr/include/arch/common/libucontext/bits.h /usr/include/libucontext && \
+    rm -rf /usr/include/arch && \
+    apk --no-cache add \
+        gcc \
+        musl-dev \
+        linux-headers \
+        python3 \
+        make \
+        unzip \
+        git

tinybuild-native64/Dockerfile

@@ -0,0 +1,22 @@
+FROM alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+# libucontext-dev requires some fixes for now
+RUN \
+    apk --no-cache add \
+        libucontext-dev \
+    && \
+    mv /usr/include/arch/common/libucontext/bits.h /usr/include/libucontext && \
+    rm -rf /usr/include/arch && \
+    apk --no-cache add \
+        gcc \
+        musl-dev \
+        linux-headers \
+        python3 \
+        make \
+        unzip \
+        git

tinybuild-risc-v/Dockerfile

@@ -0,0 +1,15 @@
+FROM alpine:latest
+
+LABEL maintainer="Marian Buschsieweke <[email protected]>"
+
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+RUN \
+    apk --no-cache add \
+        newlib-riscv-none-elf \
+        picolibc-riscv-none-elf \
+        python3 \
+        make \
+        unzip \
+        git