pyrox.dev
1{
2 lib,
3 stdenv,
4 langJit,
5}:
6
7{
8 # Note [Cross-compiler stripping]
9 # gcc requires delicate stripping as it installs ELF files for both
10 # HOST and TARGET platforms. It requires according strip tool otherwise
11 # strip could remove sections it's not aware of.
12 # Example ARM breakage by x86_64 strip: https://bugs.gentoo.org/697428
13 #
14 # Let's recap the file layout for directories with object files for a
15 # cross-compiler:
16 #
17 # $out (host != target)
18 # `- bin: HOST
19 # lib/*.{a,o}: HOST
20 # `- gcc/<TARGET>/<VERSION>/*.{a,o}: TARGET
21 # `- plugin/: HOST
22 # `- lib{,32,64,x32}: symlink to lib or identical layout
23 # `- libexec/: HOST
24 # `- <TARGET>/: TARGET
25 #
26 # $out (host == target) has identical directory layout.
27 #
28 # $lib (host != target):
29 # `- <TARGET>/lib/*.{la,so}: TARGET
30 #
31 # $lib (host == target):
32 # `- lib/*.{la,so}: HOST
33
34 # The rest of stripDebugList{Host,Target} will be populated in
35 # postInstall to disambiguate lib/ object files.
36 stripDebugList = [
37 "bin"
38 "libexec"
39 ];
40 stripDebugListTarget = [ stdenv.targetPlatform.config ];
41
42 preFixup = ''
43 # Populate most delicated lib/ part of stripDebugList{,Target}
44 updateDebugListPaths() {
45 local oldOpts
46 oldOpts="$(shopt -p nullglob)" || true
47 shopt -s nullglob
48
49 pushd $out
50 local -ar outHostFiles=(
51 lib{,32,64}/*.{a,o,so*}
52 lib{,32,64}/gcc/${stdenv.targetPlatform.config}/*/plugin
53 )
54 local -ar outTargetFiles=(
55 lib{,32,64}/gcc/${stdenv.targetPlatform.config}/*/*.{a,o,so*}
56 )
57 popd
58 ''
59 + lib.optionalString (!langJit) ''
60 ${
61 # keep indentation
62 ""
63 }
64 pushd $lib
65 local -ar libHostFiles=(
66 lib{,32,64}/*.{a,o,so*}
67 )
68 local -ar libTargetFiles=(
69 lib{,32,64}/${stdenv.targetPlatform.config}/*.{a,o,so*}
70 )
71 popd
72
73 ''
74 + ''
75 eval "$oldOpts"
76
77 stripDebugList="$stripDebugList ''${outHostFiles[*]} ''${libHostFiles[*]}"
78 stripDebugListTarget="$stripDebugListTarget ''${outTargetFiles[*]} ''${libTargetFiles[*]}"
79 }
80 updateDebugListPaths
81 '';
82}