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d="scan'208";a="2083135" From: Roger Pau Monne To: Date: Fri, 21 Jun 2019 18:38:00 +0200 Message-ID: <20190621163802.29808-2-roger.pau@citrix.com> X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: <20190621163802.29808-1-roger.pau@citrix.com> References: <20190621163802.29808-1-roger.pau@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v2 1/3] x86/linker: use DECL_SECTION uniformly X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , Wei Liu , Jan Beulich , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Replace the two open-coded EFI related section declarations with the usage of DECL_SECTION. This is a preparatory change for also adding a reloc section to the ELF binary. Signed-off-by: Roger Pau Monn=C3=A9 Acked-by: Andrew Cooper --- Cc: Jan Beulich Cc: Andrew Cooper Cc: Wei Liu --- xen/arch/x86/xen.lds.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S index cb42dc8fda..98a99444c2 100644 --- a/xen/arch/x86/xen.lds.S +++ b/xen/arch/x86/xen.lds.S @@ -298,12 +298,12 @@ SECTIONS =20 #ifdef EFI . =3D ALIGN(4); - .reloc : { + DECL_SECTION(.reloc) { *(.reloc) } :text /* Trick the linker into setting the image size to exactly 16Mb. */ . =3D ALIGN(__section_alignment__); - .pad : { + DECL_SECTION(.pad) { . =3D ALIGN(MB(16)); } :text #endif --=20 2.20.1 (Apple Git-117) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel From nobody Fri Apr 26 22:38:05 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=none (zoho.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org ARC-Seal: i=1; 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client-ip=162.221.158.21; receiver=esa4.hc3370-68.iphmx.com; envelope-from="roger.pau@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: JMD/OlD/aWFhl74Tex+xROkN99/C65Z3bqweYVcj6r9BUoCDPY5D6KQpTeEP11rM7ynkQzWCnr UXndrn3BVaxGCXEx+waYkgKX/VeopGPsXWtY4bUvjBCYivnV8imLY+gftiobzuoYVnFPvAxBmF IkRsSRq/q1DuCb+wxyIRluOXD7zCQn1biFSEQjBgNQVgSsYiPg1Bf0egT5TBJCnzyRe3yzOiYO TNWbfZGmDma+f8Kd0iAgi6q6qASEsU5kRhzr1ugJI07SIL6QrBnp7NfafxkqeQngH46LVxOwC8 i5E= X-SBRS: 2.7 X-MesageID: 2093852 X-Ironport-Server: esa4.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.63,401,1557201600"; d="scan'208";a="2093852" From: Roger Pau Monne To: Date: Fri, 21 Jun 2019 18:38:01 +0200 Message-ID: <20190621163802.29808-3-roger.pau@citrix.com> X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: <20190621163802.29808-1-roger.pau@citrix.com> References: <20190621163802.29808-1-roger.pau@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v2 2/3] x86: check for multiboot{1, 2} header presence X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , Wei Liu , Jan Beulich , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" After building the hypervisor binary. Note that the check is performed by searching for the magic header value at the start of the binary. Signed-off-by: Roger Pau Monn=C3=A9 --- Cc: Jan Beulich Cc: Andrew Cooper Cc: Wei Liu --- Changes since v1: - Use an intermediate file to perform the header checks. --- xen/arch/x86/Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/Makefile b/xen/arch/x86/Makefile index 8a8d8f060f..5c908c49e3 100644 --- a/xen/arch/x86/Makefile +++ b/xen/arch/x86/Makefile @@ -100,8 +100,12 @@ syms-warn-dup-y :=3D --warn-dup syms-warn-dup-$(CONFIG_SUPPRESS_DUPLICATE_SYMBOL_WARNINGS) :=3D =20 $(TARGET): $(TARGET)-syms $(efi-y) boot/mkelf32 - ./boot/mkelf32 $(notes_phdrs) $(TARGET)-syms $(TARGET) $(XEN_IMG_OFFSET) \ + ./boot/mkelf32 $(notes_phdrs) $(TARGET)-syms $(@D)/.$(@F) $(XEN_IMG_OFFSE= T) \ `$(NM) $(TARGET)-syms | sed -ne 's/^\([^ ]*\) . __2M_rwdat= a_end$$/0x\1/p'` + # Check for multiboot{1,2} headers + od -t x4 -N 8192 $(@D)/.$(@F) | grep 1badb002 > /dev/null + od -t x4 -N 32768 $(@D)/.$(@F) | grep e85250d6 > /dev/null + mv $(@D)/.$(@F) $(TARGET) =20 ALL_OBJS :=3D $(BASEDIR)/arch/x86/boot/built_in.o $(BASEDIR)/arch/x86/efi/= built_in.o $(ALL_OBJS) =20 --=20 2.20.1 (Apple Git-117) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel From nobody Fri Apr 26 22:38:05 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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client-ip=162.221.158.21; receiver=esa6.hc3370-68.iphmx.com; envelope-from="roger.pau@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: 4Pede6atyIAyI48f3TQL0rHV8XjcP/UVhuaByt/P2EN7RHxqZByXgICq8CJsZpFgPQhI8e6Mh/ tzRVj6jMk1Lh0hV2W0y8GVwGs/A2Gg1LZuXZiEbPsigZMEnbRiRQx+Y+tROEx/9JCJ9jsPHDbg oH+qGksyWa/bBFBqAtg/569NCEsusNk9ZTAxHts/OPyAGRs1hJvK3XypozOcNFWlkdSbuQ7ChD c3otOxon/q12r75GzwcARgzFpng3In0dgLIiwoz11ZUpGtkvdSQ7ZP+4svCcZTaz3Dd1VFD54e HOo= X-SBRS: 2.7 X-MesageID: 2070542 X-Ironport-Server: esa6.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.63,401,1557201600"; d="scan'208";a="2070542" From: Roger Pau Monne To: Date: Fri, 21 Jun 2019 18:38:02 +0200 Message-ID: <20190621163802.29808-4-roger.pau@citrix.com> X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: <20190621163802.29808-1-roger.pau@citrix.com> References: <20190621163802.29808-1-roger.pau@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v2 3/3] x86/linker: add a reloc section to ELF binary X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , Wei Liu , Jan Beulich , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" if the hypervisor has been built with EFI support (ie: multiboot2). This allows to position the .reloc section correctly in the output binary. Note that for the ELF output format the .reloc section is moved before .bss for two reasons: in order for the resulting binary to not contain any section with data after .bss, so that the file size can be smaller than the loaded memory size, and because the data it contains is read-only, so it belongs with the other sections containing read-only data. Signed-off-by: Roger Pau Monn=C3=A9 --- Cc: Jan Beulich Cc: Andrew Cooper Cc: Wei Liu --- changes sincce v1: - Move the .reloc section position in the output binary only for the ELF output format. --- xen/arch/x86/xen.lds.S | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S index 98a99444c2..19aa4332cf 100644 --- a/xen/arch/x86/xen.lds.S +++ b/xen/arch/x86/xen.lds.S @@ -175,6 +175,14 @@ SECTIONS } :text #endif #endif + +#if defined(XEN_BUILD_EFI) && !defined(EFI) + . =3D ALIGN(4); + DECL_SECTION(.reloc) { + *(.reloc) + } :text +#endif + _erodata =3D .; =20 . =3D ALIGN(SECTION_ALIGN); --=20 2.20.1 (Apple Git-117) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel