{"id":2224229,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2224229/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/patch/CAMe9rOpd+ZVNxTYeD-PPUuzVZ3PsGui0hEBFHAqT6mGOdoYxhA@mail.gmail.com/","project":{"id":41,"url":"http://patchwork.ozlabs.org/api/1.2/projects/41/?format=json","name":"GNU C Library","link_name":"glibc","list_id":"libc-alpha.sourceware.org","list_email":"libc-alpha@sourceware.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2026-04-17T06:02:54","name":"[v2,1/2] Check if linker supports -z separate-code","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"04195fa0fab6e6fcc02d3dcea92c366130ed7ce8","submitter":{"id":4387,"url":"http://patchwork.ozlabs.org/api/1.2/people/4387/?format=json","name":"H.J. Lu","email":"hjl.tools@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/glibc/patch/CAMe9rOpd+ZVNxTYeD-PPUuzVZ3PsGui0hEBFHAqT6mGOdoYxhA@mail.gmail.com/mbox/","series":[{"id":500240,"url":"http://patchwork.ozlabs.org/api/1.2/series/500240/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/list/?series=500240","date":"2026-04-17T06:02:54","name":"[v2,1/2] Check if linker supports -z separate-code","version":2,"mbox":"http://patchwork.ozlabs.org/series/500240/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2224229/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224229/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","libc-alpha@sourceware.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","libc-alpha@sourceware.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=pIrteZLy;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org\n (client-ip=2620:52:6:3111::32; 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Thu, 16 Apr 2026\n 23:03:31 -0700 (PDT)","MIME-Version":"1.0","References":"\n ","In-Reply-To":"\n ","From":"\"H.J. Lu\" ","Date":"Fri, 17 Apr 2026 14:02:54 +0800","X-Gm-Features":"AQROBzBEF8JGz0TzBonS8cbcwjf4YEdwGQXRkPpAFJOkY545RxTYx9pliZ7cpmo","Message-ID":"\n ","Subject":"[PATCH v2 1/2] Check if linker supports -z separate-code","To":"GNU C Library , WANG Rui ","Content-Type":"multipart/mixed; boundary=\"0000000000005ca49c064fa1b5ca\"","X-BeenThere":"libc-alpha@sourceware.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Libc-alpha mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org"},"content":"On Fri, Apr 17, 2026 at 12:09 PM H.J. Lu wrote:\n>\n> Set have-separate-code to yes if linker supports -z separate-code.\n>\n\nUnchanged.","diff":"From 256b058b7555b20edf404b1f31e0c72f148c181d Mon Sep 17 00:00:00 2001\nFrom: \"H.J. Lu\" \nDate: Mon, 13 Apr 2026 08:23:05 +0800\nSubject: [PATCH v2 1/2] Check if linker supports -z separate-code\n\nSet have-separate-code to yes if linker supports -z separate-code.\n\nSigned-off-by: H.J. Lu \n---\n configure | 35 +++++++++++++++++++++++++++++++++++\n configure.ac | 6 ++++++\n 2 files changed, 41 insertions(+)\n\ndiff --git a/configure b/configure\nindex c84d283bd5..2c1a66f6c5 100755\n--- a/configure\n+++ b/configure\n@@ -7350,6 +7350,41 @@ printf \"%s\\n\" \"$libc_linker_feature\" >&6; }\n config_vars=\"$config_vars\n have-no-dynamic-linker = $libc_cv_no_dynamic_linker\"\n \n+{ printf \"%s\\n\" \"$as_me:${as_lineno-$LINENO}: checking for linker that supports -z separate-code\" >&5\n+printf %s \"checking for linker that supports -z separate-code... \" >&6; }\n+libc_linker_feature=no\n+cat > conftest.c <&5\n+ (eval $ac_try) 2>&5\n+ ac_status=$?\n+ printf \"%s\\n\" \"$as_me:${as_lineno-$LINENO}: \\$? = $ac_status\" >&5\n+ test $ac_status = 0; }; }\n+then\n+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,-z,separate-code -nostdlib \\\n+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \\\n+ | grep \"warning: -z separate-code ignored\" > /dev/null 2>&1; then\n+ true\n+ else\n+ libc_linker_feature=yes\n+ fi\n+fi\n+rm -f conftest*\n+if test $libc_linker_feature = yes; then\n+ libc_cv_separate_code=yes\n+else\n+ libc_cv_separate_code=no\n+fi\n+{ printf \"%s\\n\" \"$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature\" >&5\n+printf \"%s\\n\" \"$libc_linker_feature\" >&6; }\n+config_vars=\"$config_vars\n+have-separate-code = $libc_cv_separate_code\"\n+\n \n { printf \"%s\\n\" \"$as_me:${as_lineno-$LINENO}: checking for -static-pie\" >&5\n printf %s \"checking for -static-pie... \" >&6; }\ndiff --git a/configure.ac b/configure.ac\nindex 280ec8e5b3..71b13ad104 100644\n--- a/configure.ac\n+++ b/configure.ac\n@@ -1356,6 +1356,12 @@ LIBC_LINKER_FEATURE([--no-dynamic-linker],\n \t\t [libc_cv_no_dynamic_linker=no])\n LIBC_CONFIG_VAR([have-no-dynamic-linker], [$libc_cv_no_dynamic_linker])\n \n+LIBC_LINKER_FEATURE([-z separate-code],\n+\t\t [-Wl,-z,separate-code],\n+\t\t [libc_cv_separate_code=yes],\n+\t\t [libc_cv_separate_code=no])\n+LIBC_CONFIG_VAR([have-separate-code], [$libc_cv_separate_code])\n+\n LIBC_TRY_CC_AND_TEST_CC_OPTION(for -static-pie, [-static-pie],\n libc_cv_static_pie,\n [libc_cv_static_pie=yes], [libc_cv_static_pie=no],\n-- \n2.53.0\n\n","prefixes":["v2","1/2"]}