[GIT PULL] nolibc changes for v5.20 (or whatever)

["Paul E. McKenney" <paulmck@kernel.org>]

Hello, Linus,

Once the merge window opens, please pull the latest nolibc changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/nolibc.2022.07.27a
  # HEAD 4f8126f3a665456b68ae923cd7a7e9b9eb98547d: tools/nolibc: add a help target to list supported targets (2022-06-20 09:43:19 -0700)

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nolibc pull request for v5.20 (or whatever)

This branch provides nolibc updates, perhaps most notably improved testing
via the "cd tools/include/nolibc; make headers" command.  This should
be considered a smoke test.  More thorough testing is in the works.

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Alviro Iskandar Setiawan (1):
      tools/nolibc/stdio: Add format attribute to enable printf warnings

Ammar Faizi (1):
      tools/nolibc/stdlib: Support overflow checking for older compiler versions

Willy Tarreau (3):
      tools/nolibc: fix the makefile to also work as "make -C tools ..."
      tools/nolibc: make the default target build the headers
      tools/nolibc: add a help target to list supported targets

 tools/Makefile                |  3 +++
 tools/include/nolibc/Makefile | 37 +++++++++++++++++++++++++++++++++++--
 tools/include/nolibc/stdio.h  |  4 ++--
 tools/include/nolibc/stdlib.h |  7 +++----
 4 files changed, 43 insertions(+), 8 deletions(-)