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Wed, 11 Nov 2026 00:30:29 -0800 (PST) X-Received: by 2002:a05:600c:3554:b0:4a5:e6fd:65e5 with SMTP id 5b1f17b1804b1-4ba0937ded6mr26339535e9.31.1794385829582; Wed, 11 Nov 2026 00:30:29 -0800 (PST) Received: from [192.168.0.9] ([47.64.115.75]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4ba0951f237sm26744945e9.4.2026.11.11.00.30.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Nov 2026 00:30:28 -0800 (PST) Message-ID: <620ad58f-50ed-4b0b-9d13-b4df34276448@redhat.com> Date: Wed, 11 Nov 2026 09:30:26 +0100 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , Precedence: list X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] powerpc: Link with -z notext To: Amit Machhiwal , Laurent Vivier , Madhavan Srinivasan Cc: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, Paolo Bonzini References: <20261110154415.46220-1-amachhiw@linux.ibm.com> From: Thomas Huth Autocrypt: addr=thuth@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Am 10.11.26 um 16:44 schrieb Amit Machhiwal: > Building the powerpc tests with GNU ld 2.46.1 fails when linking the > test binaries: > > /usr/bin/ld.bfd: error: read-only segment has dynamic relocations > > The tests are linked with -pie and relocate themselves at boot (see > relocate() in powerpc/reloc64.c, called from powerpc/cstart64.S). > Newer GNU ld rejects relocations in read-only segments by default. The > Makefile already checks after linking that only R_PPC64_RELATIVE > relocations are present. > > Fix this by adding `-z notext` to the powerpc linker flags, as was done > for arm64 in commit 5d67db4e1860 ("arm64: Link with -z notext"). > > Signed-off-by: Amit Machhiwal > --- > powerpc/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/powerpc/Makefile b/powerpc/Makefile > index 41e752b070bc..35fe58835726 100644 > --- a/powerpc/Makefile > +++ b/powerpc/Makefile > @@ -78,7 +78,7 @@ include $(SRCDIR)/scripts/asm-offsets.mak > > FLATLIBS = $(libcflat) $(LIBFDT_archive) > %.elf: CFLAGS += $(arch_CFLAGS) > -%.elf: LDFLAGS += $(arch_LDFLAGS) -pie -n > +%.elf: LDFLAGS += $(arch_LDFLAGS) -pie -n -z notext > %.elf: %.o $(FLATLIBS) $(SRCDIR)/powerpc/flat.lds $(cstart.o) $(reloc.o) %.aux.o > $(LD) $(LDFLAGS) -o $@ \ > -T $(SRCDIR)/powerpc/flat.lds --build-id=none \ Another thought: Why are we only using -pie for the LDFLAGS, but we rather seem to compile with -fno-pic in the CFLAGS? That looks weird ... I guess the -fno-pic is required for certain targets (s390x and the non-EFI builds of the other targets?), but maybe we should only add it only where it is required and compile the targets that have relocation code with -fpie in the CFLAGS instead? Thomas