Hi Masahiro On Thu, Apr 23, 2020 at 04:39:13PM +0900, Masahiro Yamada wrote: > > Several Makefiles use 'hostprogs' for building the code for > the host architecture is not appropriate. > > This is just because Kbuild does not provide the syntax to do it. > > This series introduce 'userprogs' syntax and use it from > sample and bpf Makefiles. > > Sam worked on this in 2014. > https://lkml.org/lkml/2014/7/13/154 I wonder how you managed to dig that up, but thanks for the reference. Back then we would fail buiulding without any libc - you have solved this nicely in this patch-set. > > He used 'uapiprogs-y' but I just thought the meaning of > "UAPI programs" is unclear. > > Naming is one the most difficult parts of this. > > I chose 'userprogs'. > Anothor choice I had in my mind was 'targetprogs'. > > If you can test this series quickly by > 'make allmodconfig samples/' > > When building objects for userspace, [U] is displayed. > > masahiro@oscar:~/workspace/linux$ make allmodconfig samples/ > [snip] > AR samples/vfio-mdev/built-in.a > CC [M] samples/vfio-mdev/mtty.o ... > > > Masahiro Yamada (15): > Documentation: kbuild: fix the section title format > Revert "objtool: Skip samples subdirectory" > kbuild: add infrastructure to build userspace programs > net: bpfilter: use 'userprogs' syntax to build bpfilter_umh > samples: seccomp: build sample programs for target architecture > kbuild: doc: document the new syntax 'userprogs' > samples: uhid: build sample program for target architecture > samples: hidraw: build sample program for target architecture > samples: connector: build sample program for target architecture > samples: vfs: build sample programs for target architecture > samples: pidfd: build sample program for target architecture > samples: mei: build sample program for target architecture > samples: auxdisplay: use 'userprogs' syntax > samples: timers: use 'userprogs' syntax > samples: watchdog: use 'userprogs' syntax Nice work! All patches are: Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx> > > Sam Ravnborg (1): > samples: uhid: fix warnings in uhid-example > > Documentation/kbuild/makefiles.rst | 185 +++++++++++++++++++++-------- > Makefile | 11 +- > net/bpfilter/Makefile | 11 +- > samples/Kconfig | 26 +++- > samples/Makefile | 5 +- > samples/auxdisplay/Makefile | 11 +- > samples/connector/Makefile | 12 +- > samples/hidraw/Makefile | 9 +- > samples/mei/Makefile | 9 +- > samples/pidfd/Makefile | 8 +- > samples/seccomp/Makefile | 42 +------ > samples/timers/Makefile | 17 +-- > samples/uhid/.gitignore | 2 + > samples/uhid/Makefile | 9 +- > samples/uhid/uhid-example.c | 4 +- > samples/vfs/Makefile | 11 +- > samples/watchdog/Makefile | 10 +- > scripts/Makefile.build | 5 + > scripts/Makefile.clean | 2 +- > scripts/Makefile.userprogs | 44 +++++++ > 20 files changed, 258 insertions(+), 175 deletions(-) > create mode 100644 samples/uhid/.gitignore > create mode 100644 scripts/Makefile.userprogs > > -- > 2.25.1
