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1# This setup hook strips libraries and executables in the fixup phase.
2
3fixupOutputHooks+=(_doStrip)
4
5_doStrip() {
6 # We don't bother to strip build platform code because it shouldn't make it
7 # to $out anyways---if it does, that's a bigger problem that a lack of
8 # stripping will help catch.
9 local -ra flags=(dontStripHost dontStripTarget)
10 local -ra debugDirs=(stripDebugList stripDebugListTarget)
11 local -ra allDirs=(stripAllList stripAllListTarget)
12 local -ra stripCmds=(STRIP STRIP_FOR_TARGET)
13 local -ra ranlibCmds=(RANLIB RANLIB_FOR_TARGET)
14
15 # TODO(structured-attrs): This doesn't work correctly if one of
16 # the items in strip*List or strip*Flags contains a space,
17 # even with structured attrs enabled. This is OK for now
18 # because very few packages set any of these, and it doesn't
19 # affect any of them.
20 #
21 # After __structuredAttrs = true is universal, come back and
22 # push arrays all the way through this logic.
23
24 # Strip only host paths by default. Leave targets as is.
25 stripDebugList=${stripDebugList[*]:-lib lib32 lib64 libexec bin sbin}
26 stripDebugListTarget=${stripDebugListTarget[*]:-}
27 stripAllList=${stripAllList[*]:-}
28 stripAllListTarget=${stripAllListTarget[*]:-}
29
30 local i
31 for i in ${!stripCmds[@]}; do
32 local -n flag="${flags[$i]}"
33 local -n debugDirList="${debugDirs[$i]}"
34 local -n allDirList="${allDirs[$i]}"
35 local -n stripCmd="${stripCmds[$i]}"
36 local -n ranlibCmd="${ranlibCmds[$i]}"
37
38 # `dontStrip` disables them all
39 if [[ "${dontStrip-}" || "${flag-}" ]] || ! type -f "${stripCmd-}" 2>/dev/null 1>&2
40 then continue; fi
41
42 stripDirs "$stripCmd" "$ranlibCmd" "$debugDirList" "${stripDebugFlags[*]:--S -p}"
43 stripDirs "$stripCmd" "$ranlibCmd" "$allDirList" "${stripAllFlags[*]:--s -p}"
44 done
45}
46
47stripDirs() {
48 local cmd="$1"
49 local ranlibCmd="$2"
50 local paths="$3"
51 local stripFlags="$4"
52 local pathsNew=
53
54 local p
55 for p in ${paths}; do
56 if [ -e "$prefix/$p" ]; then
57 pathsNew="${pathsNew} $prefix/$p"
58 fi
59 done
60 paths=${pathsNew}
61
62 if [ -n "${paths}" ]; then
63 echo "stripping (with command $cmd and flags $stripFlags) in $paths"
64 # Do not strip lib/debug. This is a directory used by setup-hooks/separate-debug-info.sh.
65 find $paths -type f -a '!' -wholename "$prefix/lib/debug/*" -exec $cmd $stripFlags '{}' \; 2>/dev/null
66 # 'strip' does not normally preserve archive index in .a files.
67 # This usually causes linking failures against static libs like:
68 # ld: ...-i686-w64-mingw32-stage-final-gcc-13.0.0-lib/i686-w64-mingw32/lib/libstdc++.dll.a:
69 # error adding symbols: archive has no index; run ranlib to add one
70 # Restore the index by running 'ranlib'.
71 find $paths -name '*.a' -type f -exec $ranlibCmd '{}' \; 2>/dev/null
72 fi
73}