[PATCH v2 0/2] objtool: Add option to fail build on vmlinux warnings

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This adds an option to objtool to exit with an error when it enounters
warnings.

Then, it adds a config to enable that flag. This enables you to fail
the build e.g. when noinstr is violated.

Signed-off-by: Brendan Jackman <jackmanb@xxxxxxxxxx>
---
Changes in v2:
- Renamed flag/config to -Werror/CONFIG_*_WERROR
- Applied to all objool runs instead of just vmlinux.
- Link to v1: https://lore.kernel.org/r/20241213-objtool-strict-v1-0-fd388f9d971f@xxxxxxxxxx

---
Brendan Jackman (2):
      objtool: Add --Werror
      kbuild: Add option to fail build on vmlinux objtool issues

 lib/Kconfig.debug                       | 10 ++++++++++
 scripts/Makefile.lib                    |  1 +
 tools/objtool/builtin-check.c           |  6 ++++++
 tools/objtool/check.c                   |  7 ++-----
 tools/objtool/include/objtool/builtin.h |  1 +
 5 files changed, 20 insertions(+), 5 deletions(-)
---
base-commit: f932fb9b40749d1c9a539d89bb3e288c077aafe5
change-id: 20241213-objtool-strict-cb9a0a75139e

Best regards,
-- 
Brendan Jackman <jackmanb@xxxxxxxxxx>





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