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The top-level Makefile passes -m to its sub-makes in order to ensure they use the in-tree mk files in share/mk, but the top-level make itself has to rely on whatever environment the bmake used has. For FreeBSD, we configure the system bmake with .../share/mk:/usr/share/mk, which means it will pick up src's share/mk whenever run from within the src tree, but currently for non-FreeBSD we configure our bootstrap bmake only with bmake's own mk files. This is mostly compatible, with two exceptions: 1. "targets" runs at the top level, but needs TARGET_MACHINE_LIST and the corresponding MACHINE_ARCH_LIST_${target}, otherwise it will just print an empty list. 2. "universe" and "universe-toolchain", when run at the top level (i.e. not via the various wrappers around universe like tinderbox), end up failing in universe-toolchain itself with: bmake[1]: "/path/to/freebsd/share/mk/src.sys.obj.mk" line 112: Cannot use MAKEOBJDIR= Unset MAKEOBJDIR to get default: MAKEOBJDIR='${.CURDIR:S,^${SRCTOP},${OBJTOP},}' By including .../share/mk in the default sys path like FreeBSD's system bmake we ensure that we get the in-tree mk files for the top-level make, not just sub-makes, and avoid such issues. Note that we cannot (yet) stop using the installed mk files, since the MAKEOBJDIRPREFIX check in Makefile runs in the object directory and uses env -i, thereby losing the MAKESYSPATH exported by src.sys.env.mk. Other such issues may also exist, though are likely rare if so. Reviewed by: sjg Differential Revision: https://reviews.freebsd.org/D41544 |
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.. | ||
boot | ||
bsdbox | ||
build | ||
bus_space | ||
coccinelle | ||
debugscripts | ||
diag | ||
ifnet | ||
kerneldoc | ||
LibraryReport | ||
lua | ||
pkgbase | ||
regression | ||
sched | ||
test | ||
tools | ||
uma/smrstress | ||
install.sh | ||
make_libdeps.sh | ||
README | ||
tinder.sh |
This directory tree contains tools used for the maintenance and testing of FreeBSD. There is no toplevel Makefile structure since these tools are not meant to be built as part of the standard system, though there may be individual Makefiles in some of the subdirs. Please read the README files in the subdirs for further information.