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Message-Id: <20231213134303.2302285-3-dimitri.ledkov@canonical.com> Date: Wed, 13 Dec 2023 13:43:01 +0000 From: Dimitri John Ledkov <dimitri.ledkov@...onical.com> To: jpoimboe@...nel.org, peterz@...radead.org Cc: x86@...nel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2 2/3] objtool: make objtool SLS validation fatal when building with CONFIG_SLS=y Make objtool SLS validation fatal when building with CONFIG_SLS=y, currently it is a build.log warning only. This is a standalone patch, such that if regressions are identified (with any config or toolchain configuration) it can be reverted until relevant identified code is fixed up or otherwise ignored/silecned/marked as safe. Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@...onical.com> --- tools/objtool/check.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 15df4afae2..9709f037f1 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -4500,7 +4500,9 @@ static int validate_sls(struct objtool_file *file) } } - return warnings; + /* SLS is an optional security safety feature, make it fatal + * to ensure no new code is introduced that fails SLS */ + return -warnings; } static bool ignore_noreturn_call(struct instruction *insn) -- 2.34.1
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