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Diffstat (limited to 'README')
| -rw-r--r-- | README | 34 |
1 files changed, 34 insertions, 0 deletions
@@ -24,5 +24,39 @@ commands before building: $ ./config clean $ ./config +Binutils Build System Mangling +------------------------------ + +[See `patches/01_pass-some-dirs-to-child-makes.patch` for some background +information.] + +An alternative to `patches/01_pass-some-dirs-to-child-makes.patch` is to run +make in each subdirectory ourselves instead of letting the top-level makefile do +it for us. This way, we can leave the build system untouched and directly give +each child make process the required macro settings. + +There are ten subdirectories in which we would need to run make (though of +course we don't currently enable some of them, e.g. `gold`): + + * `bfd` + * `opcodes` + * `binutils` + * `etc` + * `gas` + * `gold` + * `gprof` + * `intl` + * `ld` + * `libiberty` + +The disadvantage to this is a higher maintenance cost: we need to keep track of +the subdirectories in which we need to run make. We need to watch out for +changes to the dependencies of `install-host` and `install-target` in Binutils's +Makefile.in (unlikely) and changes in the features (e.g. gold) we enable +(likely). + +The trivial patch (which adds just three lines) should apply cleanly across +Binutils releases, so it seems best to just stick with that. + [debian-ld-ma-patch]: http://patch-tracker.debian.org/patch/series/view/binutils/2.22-7.1/129_ld_mulitarch_dirs.patch |