This patchset enables -fshort-wchar and adds support to vsprintf (%ls), along with GUID printing. Both things needed by efi_loader.
Unlike the previous version of the patchset, which had a kconfig option selected by efi_loader to enable -fshort-wchar, and at Tom's suggestion, this patchset unconditionally switches to -fshort-wchar.
Note that this patchset and the fs_readdir patchset (which I'll resend today) can be applied in either order. But both are dependencies for the stack of efi_loader patches to make normal distro boot work (shim/ fallback and upstream grub being able to locate it's grub.cfg properly). So either these could go before pulling efi-next or possibly have multiple efi-next pull requests so Heinrich's efi_loader patches can go first.
Rob Clark (5): kbuild: Enable -fshort-wchar lib: add some utf16 handling helpers vsprintf.c: add UTF-16 string (%ls) support vsprintf.c: add GUID printing examples: add fallback memcpy
Makefile | 1 + examples/api/Makefile | 2 + examples/api/glue.c | 12 +++++ include/charset.h | 65 ++++++++++++++++++++++++++++ include/config_fallbacks.h | 1 + lib/Makefile | 1 + lib/charset.c | 101 +++++++++++++++++++++++++++++++++++++++++++ lib/efi_loader/efi_console.c | 17 ++------ lib/vsprintf.c | 76 ++++++++++++++++++++++++++++++-- 9 files changed, 258 insertions(+), 18 deletions(-) create mode 100644 include/charset.h create mode 100644 lib/charset.c