linux-kernel - [PATCH 2/2] x86/purgatory: Enable orphan section warnings

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Date: Wed, 17 Apr 2024 14:53:46 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, 
 dave.hansen@...ux.intel.com
Cc: x86@...nel.org, hpa@...or.com, ndesaulniers@...gle.com, 
 morbo@...gle.com, justinstitt@...gle.com, song@...nel.org, 
 ribalda@...omium.org, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, 
 patches@...ts.linux.dev, Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH 2/2] x86/purgatory: Enable orphan section warnings

Now that the purgatory has a linker script that explicitly describes all
of its sections, turn on orphan section warnings for it so that new
sections do not appear without notice.

Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 arch/x86/purgatory/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index dfc030a4cca9..a6c8239abcba 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -17,7 +17,7 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS -D__NO_FORTIFY
 # When linking purgatory.ro with -r unresolved symbols are not checked,
 # also link a purgatory.chk binary without -r to check for unresolved symbols.
 PURGATORY_LDFLAGS := -z nodefaultlib
-LDFLAGS_purgatory.ro := -r $(PURGATORY_LDFLAGS) -T
+LDFLAGS_purgatory.ro := --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL) -r $(PURGATORY_LDFLAGS) -T
 LDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS)
 targets += purgatory.ro purgatory.chk
 

-- 
2.44.0