[PATCH 0/4] Fix CONFIG_CC_OPTIMIZE_FOR_DEBUG support

[Heinrich Schuchardt]

When trying to build qemu-riscv64_smode_defconfig with
CONFIG_CC_OPTIMIZE_FOR_DEBUG=y it became evident that the build was not
using -Og as expected. This is due to an incorrect update of the build
system with commit 5f520875bdf0 ("kbuild: Bump the build system to 5.1").

The first patch reestablishes setting the build flag.

But now the build failed due to missing symbols.

We have opted to prefer 'if' over '#if' to more easily see problems in
contributed code.

When compiling with CONFIG_CC_OPTIMIZE_FOR_DEBUG=y the compiler does not
execute all optimization paths and references to unused functions are
introduced.

The issue is resolved by using #ifdef around os_malloc() in our test
code and adding stubs for live-tree functions.

Maybe we should inject CONFIG_CC_OPTIMIZE_FOR_DEBUG=y into some of our CI
builds to ensure that building remains possible.

Heinrich Schuchardt (4):
  Makefile: repair CONFIG_CC_OPTIMIZE_FOR_DEBUG support
  test: do not imply os_malloc() outside of the sandbox
  dm: add missing includes in dm/of_addr.h
  dm: dummy implementations of live-tree functions

 Makefile                  |   5 +
 drivers/core/Makefile     |   6 +-
 drivers/core/nof_access.c | 246 ++++++++++++++++++++++++++++++++++++++
 drivers/core/nof_addr.c   |  37 ++++++
 include/dm/of_addr.h      |   4 +
 test/test-main.c          |   2 +
 6 files changed, 299 insertions(+), 1 deletion(-)
 create mode 100644 drivers/core/nof_access.c
 create mode 100644 drivers/core/nof_addr.c

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2.51.0