From nobody Sat Nov 13 20:13:31 2021 X-Original-To: dev-commits-src-main@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 5691E1838D77; Sat, 13 Nov 2021 20:13:32 +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 4Hs68r1fqhz3L2s; Sat, 13 Nov 2021 20:13:32 +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 008C519B8A; Sat, 13 Nov 2021 20:13:32 +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 1ADKDV2W063490; Sat, 13 Nov 2021 20:13:31 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1ADKDVVK063489; Sat, 13 Nov 2021 20:13:31 GMT (envelope-from git) Date: Sat, 13 Nov 2021 20:13:31 GMT Message-Id: <202111132013.1ADKDVVK063489@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: b61bce17f346 - main - rtld dump_auxv: be pedantic and distiguish between auxv union members based on format List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: b61bce17f346d79cecfd8f195a64b10f77be43b1 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=b61bce17f346d79cecfd8f195a64b10f77be43b1 commit b61bce17f346d79cecfd8f195a64b10f77be43b1 Author: Konstantin Belousov AuthorDate: 2021-11-13 19:04:51 +0000 Commit: Konstantin Belousov CommitDate: 2021-11-13 20:13:10 +0000 rtld dump_auxv: be pedantic and distiguish between auxv union members based on format Reviewed by: jrtc27 Sponsored by: The FreeBSD Foundation MFC after: 1 week --- libexec/rtld-elf/rtld.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c index 4c3762ee1ab9..d5c3d2893582 100644 --- a/libexec/rtld-elf/rtld.c +++ b/libexec/rtld-elf/rtld.c @@ -6105,6 +6105,15 @@ static const struct auxfmt { AUXFMT(AT_FXRNG, "%p"), }; +static bool +is_ptr_fmt(const char *fmt) +{ + char last; + + last = fmt[strlen(fmt) - 1]; + return (last == 'p' || last == 's'); +} + static void dump_auxv(Elf_Auxinfo **aux_info) { @@ -6120,7 +6129,13 @@ dump_auxv(Elf_Auxinfo **aux_info) if (fmt->fmt == NULL) continue; rtld_fdprintf(STDOUT_FILENO, "%s:\t", fmt->name); - rtld_fdprintfx(STDOUT_FILENO, fmt->fmt, auxp->a_un.a_ptr); + if (is_ptr_fmt(fmt->fmt)) { + rtld_fdprintfx(STDOUT_FILENO, fmt->fmt, + auxp->a_un.a_ptr); + } else { + rtld_fdprintfx(STDOUT_FILENO, fmt->fmt, + auxp->a_un.a_val); + } rtld_fdprintf(STDOUT_FILENO, "\n"); } }