stdenv_prefix/stdenv.md

   1 Ce dossier contient un travail permettant de créer des dérivations qui
   2 vont toutes commencer par un préfix de taille et avec un nombre de
   3 composants donné (de la forme x/x/xxxxx)
   4
   5 Le but étant de pouvoir copier une closure d’une dérivation, la mettre
   6 par exemple dans /opt/nix/store/....-foo et avec un simple `rename` +
   7 `sed` la rendre utilisable (dans l’exemple /nix/store/....-foo/xxx ->
   8 /opt/nix/store/....-foo).
   9
  10 Ci dessous se trouvent des notes de ce que j’ai compris de la stack
  11 stdenv (pkgs/stdenv/linux/default.nix)
  12
  13 # Stage -1
  14   gcc-unwrapped = null
  15   binutils = null
  16   coreutils = null
  17   gnugrep = null
  18   `stagem1 = stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages`
  19   -> contient cinq entrées (dont stdenv "invalide")
  20
  21 # Stage 0
  22   `stage0 = stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages`
  23   (`stagem1 = stage0.stdenv.__bootPackages`)
  24   `stage0.stdenv`
  25   -> cc = null
  26   `stage0`
  27   overrides:
  28     - glibc = extrait (ln -s) de bootstrapTools (bootstrap-stage0-glibc)
  29     - gcc-unwrapped = bootstrapTools
  30     - binutils = wrapper sur bootstrapTools (bootstrap-stage0-binutils-wrapper)
  31     - coreutils = bootstrapTools
  32     - gnugrep = bootstrapTools
  33     - ccWrapperStdenv = stage0.stdenv
  34
  35 # Stage 1
  36   `stage1 = stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages`
  37   (`stage0 = stage1.stdenv.__bootPackages`)
  38   `stage1.stdenv`
  39   -> cc = cc-wrapper buildé avec
  40             cc = stage0.gcc-unwrapped = bootstrapTools
  41             bintools = stage0.binutils = bootstrap-stage0-binutils-wrapper
  42             glibc = stage0.glibc = bootstrap-stage0-glibc
  43             coreutils = stage0.coreutils = bootstrapTools
  44             gnugrep = stage0.gnugrep = bootstrapTools
  45             stdenvNoCC = stage0.ccWrapperStdenv = stage0.stdenv
  46   `stage1`
  47   overrides:
  48     - binutils-unwrapped = override (gold = false)
  49     - ccWrapperStdenv = stage0.stdenv
  50     - gcc-unwrapped = bootstrapTools
  51     - coreutils = bootstrapTools
  52     - gnugrep = bootstrapTools
  53     - glibc = bootstrap-stage0-glibc
  54     - perl = override (threading = false)
  55
  56 # Stage 2
  57   `stage2 = stdenv.__bootPackages.stdenv.__bootPackages.stdenv.__bootPackages`
  58   (`stage1 = stage2.stdenv.__bootPackages`)
  59   `stage2.stdenv`
  60   -> cc = cc-wrapper buildé avec
  61           cc = stage1.gcc-unwrapped = bootstrapTools
  62           bintools = stage1.binutils = wrapper sur binutils-unwrapped (gold = false)
  63           glibc = bootstrap-stage0-glibc
  64           coreutils = bootstrapTools
  65           gnugrep = bootstrapTools
  66           stdenvNoCC = stage1.ccWrapperStdenv = stage0.stdenv
  67   `stage2`
  68   overrides:
  69     - ccWrapperStdenv = stage0.stdenv
  70     - gcc-unwrapped = bootstrapTools
  71     - coreutils = bootstrapTools
  72     - gnugrep = bootstrapTools
  73     - perl = override (threading = false)
  74     - binutils = stage1.override (libc = self.glibc)
  75     - libidn2 = nuke-refs
  76     - libunistring = nuke-refs
  77     - dejagnu = nocheck
  78     - gnum4 = stage1.gnum4
  79     - bison = stage1.bison
  80
  81 # Stage 3
  82   `stage3 = stdenv.__bootPackages.stdenv.__bootPackages`
  83   (`stage2 = stage3.stdenv.__bootPackages`)
  84   `stage3.stdenv`
  85   -> cc = cc-wrapper buildé avec
  86           cc = stage2.gcc-unwrapped = bootstrapTools
  87           bintools = stage2.binutils
  88           glibc = stage2.glibc
  89           coreutils = bootstrapTools
  90           gnugrep = bootstrapTools
  91           stdenvNoCC = stage2.ccWrapperStdenv = stage0.stdenv
  92   `stage3`
  93   overrides:
  94     - ccWrapperStdenv = stage0.stdenv
  95     - binutils = stage2.binutils
  96     - coreutils = bootstrapTools
  97     - gnugrep = bootstrapTools
  98     - perl patchelf linuxHeaders gnum4 bison libidn2 libunistring = stage2
  99     - glibc = stage2.glibc
 100     - gmp mpfr libmpc isl_0_20 = override static
 101     - gcc-unwrapped = override (isl)
 102
 103 # Stage 4
 104   `stage4 = stdenv.__bootPackages`
 105   (`stage3 = stage4.stdenv.__bootPackages`)
 106   `stage4.stdenv`
 107   -> cc = cc-wrapper buildé avec
 108           cc = stage3.gcc-unwrapped = override (isl)
 109           bintools = stage2.binutils
 110           glibc = stage2.glibc
 111           coreutils = bootstrapTools
 112           gnugrep = bootstrapTools
 113           stdenvNoCC = stage3.ccWrapperStdenv = stage0.stdenv
 114   `stage4`
 115   overrides:
 116     - gettext gnum4 bison gmp perl texinfo zlib linuxHeaders libidn2 libunistring = stage3
 117     - glibc = stage3.glibc = stage2.glibc
 118     - binutils = override
 119     - gcc = buildé avec
 120             cc = stage3.gcc-unwrapped
 121             bintools = self.binutils
 122             libc = self.glibc
 123             stdenvNoCC coreutils gnugrep = self
 124
 125 # Final Stage
 126   `stdenv`
 127   cc = stage4.gcc
 128   `pkgs`
 129   overrides:
 130     - glibc = stage4.glibc = stage2.glibc
 131     - zlib libidn2 libunistring = stage4 = stage3
 132     - (hors cross-compile) binutils binutils-unwrapped = stage4
 133     - (hors cross-compile) gcc = cc