4.9-stable review patch. If anyone has any objections, please let me know.
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From: Josh Poimboeuf jpoimboe@redhat.com
commit 385d11b152c4eb638eeb769edcb3249533bb9a00 upstream.
If a nonexistent file is supplied to objtool, it complains with a non-helpful error:
open: No such file or directory
Improve it to:
objtool: Can't open 'foo': No such file or directory
Reported-by: Markus M4rkusXXL@web.de Signed-off-by: Josh Poimboeuf jpoimboe@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Link: http://lkml.kernel.org/r/406a3d00a21225eee2819844048e17f68523ccf6.1516025651... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- tools/objtool/elf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/tools/objtool/elf.c +++ b/tools/objtool/elf.c @@ -26,6 +26,7 @@ #include <stdlib.h> #include <string.h> #include <unistd.h> +#include <errno.h>
#include "elf.h" #include "warn.h" @@ -370,7 +371,8 @@ struct elf *elf_open(const char *name)
elf->fd = open(name, O_RDONLY); if (elf->fd == -1) { - perror("open"); + fprintf(stderr, "objtool: Can't open '%s': %s\n", + name, strerror(errno)); goto err; }