objtool: Rename elf_open() to prevent conflict with libelf from elftoolchain

The elftoolchain version of libelf has a function named elf_open().

The function name isn't quite accurate anyway, since it also reads all
the ELF data.  Rename it to elf_read(), which is more accurate.

[ jpoimboe: rename to elf_read(); write commit description ]

Signed-off-by: Michael Forney <mforney@mforney.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/7ce2d1b35665edf19fd0eb6fbc0b17b81a48e62f.1562793604.git.jpoimboe@redhat.com

3 files changed, 3 insertions, 3 deletions

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 172f99195726..de8f40730b37 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2407,7 +2407,7 @@ int check(const char *_objname, bool orc)
 
         objname = _objname;
 
-        file.elf = elf_open(objname, orc ? O_RDWR : O_RDONLY);
+        file.elf = elf_read(objname, orc ? O_RDWR : O_RDONLY);
         if (!file.elf)
                 return 1;
 
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 76e4f7ceab82..e18698262837 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -401,7 +401,7 @@ static int read_relas(struct elf *elf)
         return 0;
 }
 
-struct elf *elf_open(const char *name, int flags)
+struct elf *elf_read(const char *name, int flags)
 {
         struct elf *elf;
         Elf_Cmd cmd;
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index e44ca5d51871..2fe0b0aa741d 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -74,7 +74,7 @@ struct elf {
 };
 
 
-struct elf *elf_open(const char *name, int flags);
+struct elf *elf_read(const char *name, int flags);
 struct section *find_section_by_name(struct elf *elf, const char *name);
 struct symbol *find_symbol_by_offset(struct section *sec, unsigned long offset);
 struct symbol *find_symbol_by_name(struct elf *elf, const char *name);