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Diffstat (limited to 'pkgtools/cwrappers/files/doc/normalise.txt')
| -rw-r--r-- | pkgtools/cwrappers/files/doc/normalise.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/pkgtools/cwrappers/files/doc/normalise.txt b/pkgtools/cwrappers/files/doc/normalise.txt new file mode 100644 index 00000000000..ac999588ad3 --- /dev/null +++ b/pkgtools/cwrappers/files/doc/normalise.txt @@ -0,0 +1,32 @@ +$NetBSD: normalise.txt,v 1.1 2014/09/17 12:40:56 joerg Exp $ + +The first phase of wrapper processing for cc-ish wrappers is argument +normalisation. This simplifies processing in latter steps. + +Transformations done in this phase: + +1. Empty arguments are suppressed. + +2. Arguments of the form "-Xlinker -Wl,foo" are converted to "-Wl,foo". +All other arguments of the form "-Xlinker foo" are converted to "-Wl,foo". + +3. Arguments of the form "-Wl,*,*" are split into separate -Wl options. + +4. Arguments of the form "-I foo", "-D foo", "-L foo" or +"-Wl,-L -Wl,foo" are converted to the single argument form "-Ifoo", +"-Dfoo", "-Lfoo" and "-Wl,-Lfoo" respectively. + +5. Arguments of the form "-Wl,-L,foo" are converted to "-Lfoo". + +6. Arguments of the form "-Wl,-rpath-link -Wl,foo" are converted to +the single argument form "-Wl,-rpath-link,foo". + +7. Arguments of the form "-Rfoo", "-R foo", "-Wl,-Rfoo", "-Wl,-R -Wl,foo", +"-Wl,-rpath -Wl,foo" or "--Wl,-rpath -Wl,foo" are converted to the single +canonical argument form "-Wl,-rpath,foo". All -Wl,-rpath options with relative +path (e.g. not starting with /) are dropped. + +8. Full path names that end up in +"/lib([a-zA-Z0-9_-])*\.s[ol](\.[0-9][^/]*)$ are replaced by "-Ldir -l\1" +with "dir" being the base name of the argument. This is not done for +arguments to -o, --dynamic-linker or -Wl,--dynamic-linker. |