Me again :)

I needed getcwd() for something. So I added that, then realised
I also needed readlink() to test the result of getcwd().

This adds getcwd() and readlink() then adds a test that uses
both.

nolibc selftest passed on: i386 x86_64 x32 arm64 arm armthumb mips32le
mips32be mipsn32le mipsn32be mips64le mips64be ppc ppc64 ppc64le riscv32
riscv64 sparc32 sparc64 m68k

Daniel Palmer (3):
  tools/nolibc: unistd: Add getcwd()
  tools/nolibc: unistd: Add readlink()
  selftests/nolibc: Add test for getcwd() and readlink()

 tools/include/nolibc/unistd.h                | 42 ++++++++++++++++++++
 tools/testing/selftests/nolibc/nolibc-test.c | 26 ++++++++++++
 2 files changed, 68 insertions(+)


base-commit: 266df86c4893fed1a7f027e767fe1c7f6456b100
-- 
2.53.0