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Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull objtool build fix from Ingo Molnar:
 "An libtool fix for older libelf versions"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Allow building with older libelf
This commit is contained in:
Linus Torvalds 2016-05-25 16:52:19 -07:00
commit c4a346002b
2 changed files with 9 additions and 0 deletions
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4
tools/objtool/Makefile
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@ -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

5
tools/objtool/elf.h
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@ -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;