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+name: build-essential-bootstrap
+kind: stratum
+description: |
+ Toolchain stratum
+
+ Stage 1: build a minimal cross compiler with the host's tools.
+
+ Starting with a cross compiler ensures that (a) nothing from the host
+ can leak into the build-essential artifacts, and (b) cross-compiling
+ build-essential is fully tested and supported, since we always use the
+ cross code paths.
+
+ Stage 2: cross-build the whole of build-essential, using the host's tools
+ but the cross-compiler toolchain.
+
+ Stage 2 GCC outputs code for the same 'bootstrap' machine as stage 1 GCC,
+ but because stage 2 GCC is also built to *run* on the bootstrap machine
+ it can only execute inside the stage 3 chroot (due to being built against
+ a libc with a non-standard prefix).
+
+ Stage 3: build the whole of build-essential again, this time using a
+ staging area containing only the output of stage 2. The result of this
+ build is fully reproducible.
+
+ We do a switch-a-roo between stage 2 and 3: stages 2 chunks are all built
+ to run on a host *-bootstrap-* while stage 3 chunks are native-built for
+ a *-baserock-* machine. This works, because the cross build was all for
+ show (and cleanliness) and the binaries actually still run on the host.
+
+ After build-essential is built we do another trick. See
+ stage2-fhs-dirs.morph for details. Basically, /bin is a symlink to
+ /tools/bin during stage 2 but in stage 3 it becomes a real directory
+ again.
+
+ PLEASE KEEP THE REFS IN 'armv7lhf-cross-toolchain' STRATUM UP TO DATE WITH
+ THIS ONE!
+products:
+- artifact: build-essential-minimal
+ include:
+ - fhs-dirs-.*
+ - busybox-.*
+ - glibc-nss
+chunks:
+- name: stage1-binutils
+ morph: strata/build-essential/stage1-binutils.morph
+ repo: upstream:binutils-redhat
+ ref: b1d3b01332ae49a60ff5d6bf53d3a5b1805769c8
+ unpetrify-ref: baserock/build-essential
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage1-gcc
+ morph: strata/build-essential/stage1-gcc.morph
+ repo: upstream:gcc-tarball
+ ref: b3c9b176c1f10ebeff5700eb3760e9511f23fa06
+ unpetrify-ref: baserock/build-essential
+ build-depends:
+ - stage1-binutils
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-linux-api-headers
+ morph: strata/build-essential/stage2-linux-api-headers.morph
+ repo: upstream:linux
+ ref: bfa76d49576599a4b9f9b7a71f23d73d6dcff735
+ unpetrify-ref: v3.19
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-glibc
+ morph: strata/build-essential/stage2-glibc.morph
+ repo: upstream:glibc
+ ref: 52cf9a0153c14df4f6ae3bd0e1e6cc5d171e586c
+ unpetrify-ref: baserock/glibc-2.20
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-libstdc++
+ morph: strata/build-essential/stage2-libstdc++.morph
+ repo: upstream:gcc-tarball
+ ref: b3c9b176c1f10ebeff5700eb3760e9511f23fa06
+ unpetrify-ref: baserock/build-essential
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-binutils
+ morph: strata/build-essential/stage2-binutils.morph
+ repo: upstream:binutils-redhat
+ ref: b1d3b01332ae49a60ff5d6bf53d3a5b1805769c8
+ unpetrify-ref: baserock/build-essential
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-gcc-fixed-headers
+ morph: strata/build-essential/stage2-gcc-fixed-headers.morph
+ repo: upstream:gcc-tarball
+ ref: b3c9b176c1f10ebeff5700eb3760e9511f23fa06
+ unpetrify-ref: baserock/build-essential
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-gcc
+ morph: strata/build-essential/stage2-gcc.morph
+ repo: upstream:gcc-tarball
+ ref: b3c9b176c1f10ebeff5700eb3760e9511f23fa06
+ unpetrify-ref: baserock/build-essential
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ - stage2-gcc-fixed-headers
+ - stage2-libstdc++
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-busybox
+ morph: strata/build-essential/stage2-busybox.morph
+ repo: upstream:busybox
+ ref: 1ecfe811fe2f70380170ef7d820e8150054e88ca
+ unpetrify-ref: 1_23_1
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-fake-bash
+ morph: strata/build-essential/stage2-fake-bash.morph
+ repo: upstream:bash
+ ref: 3590145af6f1c9fa321dff231f69ae696e7e740b
+ unpetrify-ref: baserock/bash-4.3-patch-27
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-fhs-dirs
+ morph: strata/build-essential/stage2-fhs-dirs.morph
+ repo: baserock:baserock/fhs-dirs
+ ref: 41bbb474cd4647ee715bc94c21c161d12a20deb4
+ unpetrify-ref: master
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-gawk
+ morph: strata/build-essential/stage2-gawk.morph
+ repo: upstream:gawk
+ ref: dc5af665700d9b04fdf9c18930526d28eef5d5d9
+ unpetrify-ref: gawk-4.1.1
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-make
+ morph: strata/build-essential/stage2-make.morph
+ repo: upstream:make-tarball
+ ref: f75919b038da8a28388a911303fb86ed7a70ea2c
+ unpetrify-ref: make-4.1
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools
+
+- name: stage2-reset-specs
+ morph: strata/build-essential/stage2-reset-specs.morph
+ repo: upstream:glibc
+ ref: 52cf9a0153c14df4f6ae3bd0e1e6cc5d171e586c
+ unpetrify-ref: baserock/glibc-2.20
+ build-depends:
+ - stage1-binutils
+ - stage1-gcc
+ - stage2-linux-api-headers
+ - stage2-glibc
+ build-mode: bootstrap
+ prefix: /tools