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Message-ID: <174198264454.14745.1315469641657975505.tip-bot2@tip-bot2>
Date: Fri, 14 Mar 2025 20:04:04 -0000
From: "tip-bot2 for David Engraf" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: David Engraf <david.engraf@...go.com>,
 Josh Poimboeuf <jpoimboe@...nel.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: objtool/core] objtool: Hide unnecessary compiler error message

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     bf71940fc16953bed84caa59b7b076ead70d42f6
Gitweb:        https://git.kernel.org/tip/bf71940fc16953bed84caa59b7b076ead70d42f6
Author:        David Engraf <david.engraf@...go.com>
AuthorDate:    Mon, 03 Feb 2025 08:36:10 +01:00
Committer:     Josh Poimboeuf <jpoimboe@...nel.org>
CommitterDate: Wed, 12 Mar 2025 15:43:38 -07:00

objtool: Hide unnecessary compiler error message

The check for using old libelf prints an error message when libelf.h is
not available but does not abort. This may confuse so hide the compiler
error message.

Signed-off-by: David Engraf <david.engraf@...go.com>
Link: https://lore.kernel.org/r/20250203073610.206000-1-david.engraf@sysgo.com
Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
---
 tools/objtool/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 7a65948..8c20361 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -37,7 +37,7 @@ OBJTOOL_CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBE
 OBJTOOL_LDFLAGS := $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
 
 # Allow old libelf to be used:
-elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - | grep elf_getshdr)
+elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - 2>/dev/null | grep elf_getshdr)
 OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
 
 # Always want host compilation.

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