From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
Josh Poimboeuf <jpoimboe@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [GIT PULL] objtool fix
Date: Wed, 25 May 2016 22:10:59 +0200 [thread overview]
Message-ID: <20160525201059.GA10886@gmail.com> (raw)
Linus,
Please pull the latest core-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-urgent-for-linus
# HEAD: 2e51f26245701cb28f154552836b7807159088a8 objtool: Allow building with older libelf
An libtool fix for older libelf versions.
Thanks,
Ingo
------------------>
Jan Beulich (1):
objtool: Allow building with older libelf
tools/objtool/Makefile | 4 ++++
tools/objtool/elf.h | 5 +++++
2 files changed, 9 insertions(+)
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 6765c7e949f3..f094f3c4ed84 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -30,6 +30,10 @@ INCLUDES := -I$(srctree)/tools/include
CFLAGS += -Wall -Werror $(EXTRA_WARNINGS) -fomit-frame-pointer -O2 -g $(INCLUDES)
LDFLAGS += -lelf $(LIBSUBCMD)
+# Allow old libelf to be used:
+elfshdr := $(shell echo '\#include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
+CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
+
AWK = awk
export srctree OUTPUT CFLAGS ARCH AWK
include $(srctree)/tools/build/Makefile.include
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index 7f3e00a2f907..aa1ff6596684 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -23,6 +23,11 @@
#include <linux/list.h>
#include <linux/hashtable.h>
+#ifdef LIBELF_USE_DEPRECATED
+# define elf_getshdrnum elf_getshnum
+# define elf_getshdrstrndx elf_getshstrndx
+#endif
+
struct section {
struct list_head list;
GElf_Shdr sh;
next reply other threads:[~2016-05-25 20:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 20:10 Ingo Molnar [this message]
2016-06-10 12:01 [GIT PULL] objtool fix Ingo Molnar
2016-10-28 8:30 Ingo Molnar
2016-12-07 18:40 Ingo Molnar
2017-02-02 20:50 Ingo Molnar
2017-10-14 15:53 Ingo Molnar
2020-12-27 9:31 Ingo Molnar
2020-12-27 17:27 ` pr-tracker-bot
2023-01-12 13:57 Ingo Molnar
2023-01-12 23:01 ` pr-tracker-bot
2023-09-17 17:34 Ingo Molnar
2023-09-17 18:24 ` pr-tracker-bot
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