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([2804:431:c7cb:9dce:5752:5b5a:453:cdda]) by smtp.gmail.com with ESMTPSA id h7sm22272522pjs.38.2021.08.10.06.21.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 10 Aug 2021 06:21:06 -0700 (PDT) X-Quarantine-ID: <81kVrjEZ9IjL> X-Virus-Scanned: E-securemail, by Secumail X-Spam-Status: No, score=-2.786 tagged_above=-1000 required=7.5 tests=[AB_ENVFROM_LONG_40=0.5, AB_IN_REPLY_TO_EXISTS=-1, AB_LONG_SUBJ_30=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-1, DKIM_VALID_AU=-0.1, FSL_RCVD_EX_4=0.01, FSL_RCVD_UT_4=0.01, HEAD_NEWS=-0.5, MISSING_MID=0.14, MM_ENVFROM_BOUNCE=1, NICE_REPLY_A=1, RCVD_IN_DNSWL_MED=-1.3, RDNS_DYNAMIC=0.363, S_FROM_GREY_MINUS_2=-2, T_RP_MATCHES_RCVD=-0.01] autolearn=disabled Authentication-Results: fx301.security-mail.net (amavisd-new); dkim=pass (1024-bit key) header.d=sourceware.org Secumail-id: <702f.61127d5e.afbf6.0> DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 02CF83959E65 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1628601692; bh=y/m3gb0SkUaDudWamWKqlfIIDN6C8iFMW3YwjAyLBLA=; h=Subject:To:References:Date:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=CqI+dORMs8S2SwoPjmzhWHaWCsclSylmGt91BeA5+Ld63/MJ8WyFqsUVfhRVYXmqk UqxX+0zTcUlaksm1pqxexpjaCP8TwbrLAbkpoN+XNQ/V2nGtnSC/L01CuD58bIN3GE XOCscdsdpZ/PNCPG55FMGcYbQof/QZBh7EKqNZ78= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org F3F193857C65 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=y/m3gb0SkUaDudWamWKqlfIIDN6C8iFMW3YwjAyLBLA=; b=iAYk8YQ1Tu8Za320Toxmj8gt37BLLx51cKFGHoUOkpObI4wrPHy5JBO/9jrXCKpxxb oHAjn6kopxK/qI6IGet/jdk+VOk7AslpdOIgTnDgR6mfxSpSAHXnDPw3G+UIxPbCIGGK Lqgy0zl/sOycQ+6BwwjLNK9fnw3K7L5aolotUZpZq/+xnfOIg0WgavMfqSs7gKVQd5xN LgR829bjvpAwZDLs0G4SBWJvUn8AnY/mltVmlrFZehVCxvEK3bLo4VVPo3y0gtbRhVwQ sQXBbGtvBbt/Y56F/KdNi7DHcCiapo0TjdRGe3bTMEqDs3Wy0LD/9ZLUN7+/uBULMi0T kn/Q== X-Gm-Message-State: AOAM532nxsWTB/caztXZvVZEy9fal7J4QtcHxxGPfjGhHw6NS5ArJS+m jlV4ZgAagjuSaODVWiQQIQPpUQ== X-Google-Smtp-Source: ABdhPJzCzVaXem9ZtDXMkaOcDjIxsmulKh2i4PuIUA0Qy6/0+NZQci6ZwiiwFhnKXi1iUHUfDOU34Q== X-Received: by 2002:a17:90b:1bca:: with SMTP id oa10mr33023564pjb.177.1628601667135; Tue, 10 Aug 2021 06:21:07 -0700 (PDT) Subject: Re: [RFC][PATCH v12 4/8] Add DT_GNU_FLAGS_1/DF_GNU_1_UNIQUE to glibc DSOs (bug 22745) To: libc-alpha@sourceware.org, Vivek Das Mohapatra References: <20210708163255.812-1-vivek@collabora.com> <20210708163255.812-5-vivek@collabora.com> <6209df75-2d78-b188-4041-fe77849e224c@linaro.org> Message-ID: Date: Tue, 10 Aug 2021 10:21:04 -0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <6209df75-2d78-b188-4041-fe77849e224c@linaro.org> Content-Language: en-us X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Adhemerval Zanella via Libc-alpha Reply-To: Adhemerval Zanella Errors-To: libc-alpha-bounces+mpoulhies=kalray.eu@sourceware.org Sender: Libc-alpha X-ALTERMIMEV2_in: done Content-Type: text/plain; charset=utf-8 There are a couple of minor issues that prevent the -Wl,-z,unique usage. It does not change the build outcome because the the unique GNU_FLAGS_1 will be added by elf/dynamic-notes.os anyway. > On 08/07/2021 13:32, Vivek Das Mohapatra via Libc-alpha wrote: >> diff --git a/config.make.in b/config.make.in >> index cbf59114b0..8755490c13 100644 >> --- a/config.make.in >> +++ b/config.make.in >> @@ -72,6 +72,7 @@ have-cc-with-libunwind = @libc_cv_cc_with_libunwind@ >> fno-unit-at-a-time = @fno_unit_at_a_time@ >> bind-now = @bindnow@ >> have-hash-style = @libc_cv_hashstyle@ >> +ld-zunique = @ld_zunique@ This is wrong, it should be '@libc_cv_ld_zunique@' >> diff --git a/configure.ac b/configure.ac >> index 34ecbba540..9369bcbebe 100644 >> --- a/configure.ac >> +++ b/configure.ac >> @@ -1372,9 +1372,28 @@ fi >> rm -f conftest*]) >> AC_SUBST(libc_cv_hashstyle) >> >> +AC_CACHE_CHECK([for linker DT_GNU_FLAGS_1/ DF_GNU_1_UNIQUE support], > > Maybe a space before ' /'. > >> + libc_cv_ld_zunique, [dnl >> +cat > conftest.ld.c <<\EOF >> +int x (void) { return 0; } >> +EOF >> + >> +libc_cv_ld_zunique=no; >> + >> +if AC_TRY_COMMAND([dnl >> +${CC-cc} -Wl,--fatal-warnings -Wl,-z,unique -shared -o conftest.ld.so conftest.ld.c]) >> +then >> + libc_cv_ld_zunique=yes >> +fi; >> +ld_zunique=$libc_cv_ld_zunique >> +rm -f conftest*]) >> +AC_SUBST(ld_zunique) This is wrong, it should be AC_SUBST(libc_cv_ld_zunique). 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