From nobody Mon Nov 08 14:03:41 2021 X-Original-To: dev-commits-src-branches@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id E04BF1831E87; Mon, 8 Nov 2021 14:03:41 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HntBP5yY4z4WjT; Mon, 8 Nov 2021 14:03:41 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id ACC21131BA; Mon, 8 Nov 2021 14:03:41 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 1A8E3f7i061309; Mon, 8 Nov 2021 14:03:41 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1A8E3fYq061308; Mon, 8 Nov 2021 14:03:41 GMT (envelope-from git) Date: Mon, 8 Nov 2021 14:03:41 GMT Message-Id: <202111081403.1A8E3fYq061308@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Ed Maste Subject: git: 2cd53619a1fc - stable/12 - strip/objcopy: handle empty file as unknown List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-branches@freebsd.org X-BeenThere: dev-commits-src-branches@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: emaste X-Git-Repository: src X-Git-Refname: refs/heads/stable/12 X-Git-Reftype: branch X-Git-Commit: 2cd53619a1fcdb1283ca1b813ecf10ec9bdb5b0b Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch stable/12 has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=2cd53619a1fcdb1283ca1b813ecf10ec9bdb5b0b commit 2cd53619a1fcdb1283ca1b813ecf10ec9bdb5b0b Author: Ed Maste AuthorDate: 2021-10-25 21:25:26 +0000 Commit: Ed Maste CommitDate: 2021-11-08 14:02:46 +0000 strip/objcopy: handle empty file as unknown Previously strip reported a somewhat cryptic error for empty files: strip: elf_begin() failed: Invalid argument Add a special case to treat empty files as with an unknown file format. This is consistent with llvm-strip. GNU strip produces no output which does not seem like useful behaviour (but it does exit with status 1). Reported by: andrew Reviewed by: markj MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D32648 (cherry picked from commit 179219ea046f46927d6478d43431e8b541703539) --- contrib/elftoolchain/elfcopy/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/contrib/elftoolchain/elfcopy/main.c b/contrib/elftoolchain/elfcopy/main.c index c02bb296c4a3..ae2d3a2440df 100644 --- a/contrib/elftoolchain/elfcopy/main.c +++ b/contrib/elftoolchain/elfcopy/main.c @@ -702,6 +702,8 @@ create_file(struct elfcopy *ecp, const char *src, const char *dst) } if ((ecp->ein = elf_begin(ifd, ELF_C_READ, NULL)) == NULL) + if (fstat(ifd, &sb) == 0 && sb.st_size == 0) + errx(EXIT_FAILURE, "file format not recognized"); errx(EXIT_FAILURE, "elf_begin() failed: %s", elf_errmsg(-1));