From patchwork Mon Jan 8 21:18:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jon Mason X-Patchwork-Id: 37561 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9109C46CD2 for ; Tue, 9 Jan 2024 16:32:11 +0000 (UTC) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web11.21130.1704817931293804993 for ; Tue, 09 Jan 2024 08:32:11 -0800 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: arm.com, ip: 217.140.110.172, mailfrom: jon.mason@arm.com) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8006014BF for ; Tue, 9 Jan 2024 08:32:56 -0800 (PST) Received: from debian.lan?044arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 612713F5A1 for ; Tue, 9 Jan 2024 08:32:10 -0800 (PST) From: Jon Mason To: meta-arm@lists.yoctoproject.org Subject: [PATCH 3/3] arm/optee-os: remove unneeded clang patches Date: Mon, 8 Jan 2024 15:18:46 -0600 Message-Id: <20240108211846.29349-3-jon.mason@arm.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20240108211846.29349-1-jon.mason@arm.com> References: <20240108211846.29349-1-jon.mason@arm.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Tue, 09 Jan 2024 16:32:11 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/meta-arm/message/5325 These patches don't appear to be needed anymore. Removing them. Signed-off-by: Jon Mason --- ...-Define-section-attributes-for-clang.patch | 241 ------------------ .../0003-optee-enable-clang-support.patch | 2 +- ...4-core-link-add-no-warn-rwx-segments.patch | 63 ----- .../recipes-security/optee/optee-os_4.0.0.bb | 2 - 4 files changed, 1 insertion(+), 307 deletions(-) delete mode 100644 meta-arm/recipes-security/optee/optee-os/0002-core-Define-section-attributes-for-clang.patch delete mode 100644 meta-arm/recipes-security/optee/optee-os/0004-core-link-add-no-warn-rwx-segments.patch diff --git a/meta-arm/recipes-security/optee/optee-os/0002-core-Define-section-attributes-for-clang.patch b/meta-arm/recipes-security/optee/optee-os/0002-core-Define-section-attributes-for-clang.patch deleted file mode 100644 index 64fa9e45..00000000 --- a/meta-arm/recipes-security/optee/optee-os/0002-core-Define-section-attributes-for-clang.patch +++ /dev/null @@ -1,241 +0,0 @@ -From fc930e468045dda9eab4ebe6927cc322bb294f3b Mon Sep 17 00:00:00 2001 -From: Emekcan Aras -Date: Wed, 21 Dec 2022 10:55:58 +0000 -Subject: [PATCH] core: Define section attributes for clang - -Clang's attribute section is not same as gcc, here we need to add flags -to sections so they can be eventually collected by linker into final -output segments. Only way to do so with clang is to use - -pragma clang section ... - -The behavious is described here [1], this allows us to define names bss -sections. This was not an issue until clang-15 where LLD linker starts -to detect the section flags before merging them and throws the following -errors - -| ld.lld: error: section type mismatch for .nozi.kdata_page -| >>> /mnt/b/yoe/master/build/tmp/work/qemuarm64-yoe-linux/optee-os-tadevkit/3.17.0-r0/build/core/arch/arm/kernel/thread.o:(.nozi.kdata_page): SHT_PROGBITS -| >>> output section .nozi: SHT_NOBITS -| -| ld.lld: error: section type mismatch for .nozi.mmu.l2 -| >>> /mnt/b/yoe/master/build/tmp/work/qemuarm64-yoe-linux/optee-os-tadevkit/3.17.0-r0/build/core/arch/arm/mm/core_mmu_lpae.o:(.nozi.mmu.l2): SHT_PROGBITS -| >>> output section .nozi: SHT_NOBITS - -These sections should be carrying SHT_NOBITS but so far it was not -possible to do so, this patch tries to use clangs pragma to get this -going and match the functionality with gcc. - -[1] https://intel.github.io/llvm-docs/clang/LanguageExtensions.html#specifying-section-names-for-global-objects-pragma-clang-section - -Upstream-Status: Pending -Signed-off-by: Khem Raj - ---- - core/arch/arm/kernel/thread.c | 19 +++++++++++++++-- - core/arch/arm/mm/core_mmu_lpae.c | 35 +++++++++++++++++++++++++++---- - core/arch/arm/mm/core_mmu_v7.c | 36 +++++++++++++++++++++++++++++--- - core/kernel/thread.c | 13 +++++++++++- - core/mm/pgt_cache.c | 12 ++++++++++- - 5 files changed, 104 insertions(+), 11 deletions(-) - -diff --git a/core/arch/arm/kernel/thread.c b/core/arch/arm/kernel/thread.c -index 66833b3a0..b3eb9cf9a 100644 ---- a/core/arch/arm/kernel/thread.c -+++ b/core/arch/arm/kernel/thread.c -@@ -45,15 +45,30 @@ static size_t thread_user_kcode_size __nex_bss; - #if defined(CFG_CORE_UNMAP_CORE_AT_EL0) && \ - defined(CFG_CORE_WORKAROUND_SPECTRE_BP_SEC) && defined(ARM64) - long thread_user_kdata_sp_offset __nex_bss; -+#ifdef __clang__ -+#ifndef CFG_VIRTUALIZATION -+#pragma clang section bss=".nozi.kdata_page" -+#else -+#pragma clang section bss=".nex_nozi.kdata_page" -+#endif -+#endif - static uint8_t thread_user_kdata_page[ - ROUNDUP(sizeof(struct thread_core_local) * CFG_TEE_CORE_NB_CORE, - SMALL_PAGE_SIZE)] - __aligned(SMALL_PAGE_SIZE) -+#ifndef __clang__ - #ifndef CFG_NS_VIRTUALIZATION -- __section(".nozi.kdata_page"); -+ __section(".nozi.kdata_page") - #else -- __section(".nex_nozi.kdata_page"); -+ __section(".nex_nozi.kdata_page") - #endif -+#endif -+ ; -+#endif -+ -+/* reset BSS section to default ( .bss ) */ -+#ifdef __clang__ -+#pragma clang section bss="" - #endif - - #ifdef ARM32 -diff --git a/core/arch/arm/mm/core_mmu_lpae.c b/core/arch/arm/mm/core_mmu_lpae.c -index 7e79f780a..ec4db9dc9 100644 ---- a/core/arch/arm/mm/core_mmu_lpae.c -+++ b/core/arch/arm/mm/core_mmu_lpae.c -@@ -233,19 +233,46 @@ typedef uint16_t l1_idx_t; - typedef uint64_t base_xlat_tbls_t[CFG_TEE_CORE_NB_CORE][NUM_BASE_LEVEL_ENTRIES]; - typedef uint64_t xlat_tbl_t[XLAT_TABLE_ENTRIES]; - -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.base_table" -+#endif - static base_xlat_tbls_t base_xlation_table[NUM_BASE_TABLES] - __aligned(NUM_BASE_LEVEL_ENTRIES * XLAT_ENTRY_SIZE) -- __section(".nozi.mmu.base_table"); -+#ifndef __clang__ -+ __section(".nozi.mmu.base_table") -+#endif -+; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.l2" -+#endif - static xlat_tbl_t xlat_tables[MAX_XLAT_TABLES] -- __aligned(XLAT_TABLE_SIZE) __section(".nozi.mmu.l2"); -+ __aligned(XLAT_TABLE_SIZE) -+#ifndef __clang__ -+ __section(".nozi.mmu.l2") -+#endif -+; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - - #define XLAT_TABLES_SIZE (sizeof(xlat_tbl_t) * MAX_XLAT_TABLES) - -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.l2" -+#endif - /* MMU L2 table for TAs, one for each thread */ - static xlat_tbl_t xlat_tables_ul1[CFG_NUM_THREADS] -- __aligned(XLAT_TABLE_SIZE) __section(".nozi.mmu.l2"); -- -+#ifndef __clang__ -+ __aligned(XLAT_TABLE_SIZE) __section(".nozi.mmu.l2") -+#endif -+; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - /* - * TAs page table entry inside a level 1 page table. - * -diff --git a/core/arch/arm/mm/core_mmu_v7.c b/core/arch/arm/mm/core_mmu_v7.c -index 61e703da8..1960c08ca 100644 ---- a/core/arch/arm/mm/core_mmu_v7.c -+++ b/core/arch/arm/mm/core_mmu_v7.c -@@ -204,16 +204,46 @@ typedef uint32_t l1_xlat_tbl_t[NUM_L1_ENTRIES]; - typedef uint32_t l2_xlat_tbl_t[NUM_L2_ENTRIES]; - typedef uint32_t ul1_xlat_tbl_t[NUM_UL1_ENTRIES]; - -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.l1" -+#endif - static l1_xlat_tbl_t main_mmu_l1_ttb -- __aligned(L1_ALIGNMENT) __section(".nozi.mmu.l1"); -+ __aligned(L1_ALIGNMENT) -+#ifndef __clang__ -+ __section(".nozi.mmu.l1") -+#endif -+; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - - /* L2 MMU tables */ -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.l2" -+#endif - static l2_xlat_tbl_t main_mmu_l2_ttb[MAX_XLAT_TABLES] -- __aligned(L2_ALIGNMENT) __section(".nozi.mmu.l2"); -+ __aligned(L2_ALIGNMENT) -+#ifndef __clang__ -+ __section(".nozi.mmu.l2") -+#endif -+; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - - /* MMU L1 table for TAs, one for each thread */ -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.ul1" -+#endif - static ul1_xlat_tbl_t main_mmu_ul1_ttb[CFG_NUM_THREADS] -- __aligned(UL1_ALIGNMENT) __section(".nozi.mmu.ul1"); -+ __aligned(UL1_ALIGNMENT) -+#ifndef __clang__ -+ __section(".nozi.mmu.ul1") -+#endif -+; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - - struct mmu_partition { - l1_xlat_tbl_t *l1_table; -diff --git a/core/kernel/thread.c b/core/kernel/thread.c -index 2a1f22dce..5516b6771 100644 ---- a/core/kernel/thread.c -+++ b/core/kernel/thread.c -@@ -39,13 +39,24 @@ static uint32_t end_canary_value = 0xababab00; - name[stack_num][sizeof(name[stack_num]) / sizeof(uint32_t) - 1] - #endif - -+#define DO_PRAGMA(x) _Pragma (#x) -+ -+#ifdef __clang__ -+#define DECLARE_STACK(name, num_stacks, stack_size, linkage) \ -+DO_PRAGMA (clang section bss=".nozi_stack." #name) \ -+linkage uint32_t name[num_stacks] \ -+ [ROUNDUP(stack_size + STACK_CANARY_SIZE + STACK_CHECK_EXTRA, \ -+ STACK_ALIGNMENT) / sizeof(uint32_t)] \ -+ __attribute__((aligned(STACK_ALIGNMENT))); \ -+DO_PRAGMA(clang section bss="") -+#else - #define DECLARE_STACK(name, num_stacks, stack_size, linkage) \ - linkage uint32_t name[num_stacks] \ - [ROUNDUP(stack_size + STACK_CANARY_SIZE + STACK_CHECK_EXTRA, \ - STACK_ALIGNMENT) / sizeof(uint32_t)] \ - __attribute__((section(".nozi_stack." # name), \ - aligned(STACK_ALIGNMENT))) -- -+#endif - #define GET_STACK(stack) ((vaddr_t)(stack) + STACK_SIZE(stack)) - - DECLARE_STACK(stack_tmp, CFG_TEE_CORE_NB_CORE, STACK_TMP_SIZE, -diff --git a/core/mm/pgt_cache.c b/core/mm/pgt_cache.c -index 79553c6d2..b9efdf427 100644 ---- a/core/mm/pgt_cache.c -+++ b/core/mm/pgt_cache.c -@@ -410,8 +410,18 @@ void pgt_init(void) - * has a large alignment, while .bss has a small alignment. The current - * link script is optimized for small alignment in .bss - */ -+#ifdef __clang__ -+#pragma clang section bss=".nozi.mmu.l2" -+#endif - static uint8_t pgt_tables[PGT_CACHE_SIZE][PGT_SIZE] -- __aligned(PGT_SIZE) __section(".nozi.pgt_cache"); -+ __aligned(PGT_SIZE) -+#ifndef __clang__ -+ __section(".nozi.pgt_cache") -+#endif -+ ; -+#ifdef __clang__ -+#pragma clang section bss="" -+#endif - size_t n; - - for (n = 0; n < ARRAY_SIZE(pgt_tables); n++) { diff --git a/meta-arm/recipes-security/optee/optee-os/0003-optee-enable-clang-support.patch b/meta-arm/recipes-security/optee/optee-os/0003-optee-enable-clang-support.patch index 299a24ea..3c13ce3f 100644 --- a/meta-arm/recipes-security/optee/optee-os/0003-optee-enable-clang-support.patch +++ b/meta-arm/recipes-security/optee/optee-os/0003-optee-enable-clang-support.patch @@ -1,4 +1,4 @@ -From b33de2f059f1394028a94ee9da081fa6644b50a2 Mon Sep 17 00:00:00 2001 +From 59d4c190eae11c93b26cca5a7b005a17dadc8248 Mon Sep 17 00:00:00 2001 From: Brett Warren Date: Wed, 23 Sep 2020 09:27:34 +0100 Subject: [PATCH] optee: enable clang support diff --git a/meta-arm/recipes-security/optee/optee-os/0004-core-link-add-no-warn-rwx-segments.patch b/meta-arm/recipes-security/optee/optee-os/0004-core-link-add-no-warn-rwx-segments.patch deleted file mode 100644 index 54b19efa..00000000 --- a/meta-arm/recipes-security/optee/optee-os/0004-core-link-add-no-warn-rwx-segments.patch +++ /dev/null @@ -1,63 +0,0 @@ -From 024314135e8dfe40f26f63da55d0a1426f0a8691 Mon Sep 17 00:00:00 2001 -From: Jerome Forissier -Date: Fri, 5 Aug 2022 09:48:03 +0200 -Subject: [PATCH] core: link: add --no-warn-rwx-segments - -Signed-off-by: Anton Antonov -Upstream-Status: Backport [https://github.com/OP-TEE/optee_os/pull/5474] - -binutils ld.bfd generates one RWX LOAD segment by merging several sections -with mixed R/W/X attributes (.text, .rodata, .data). After version 2.38 it -also warns by default when that happens [1], which breaks the build due to ---fatal-warnings. The RWX segment is not a problem for the TEE core, since -that information is not used to set memory permissions. Therefore, silence -the warning. - -Link: [1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=ba951afb99912da01a6e8434126b8fac7aa75107 -Link: https://sourceware.org/bugzilla/show_bug.cgi?id=29448 -Reported-by: Dominique Martinet -Signed-off-by: Jerome Forissier -Acked-by: Jens Wiklander - ---- - core/arch/arm/kernel/link.mk | 6 ++++-- - 1 file changed, 4 insertions(+), 2 deletions(-) - -diff --git a/core/arch/arm/kernel/link.mk b/core/arch/arm/kernel/link.mk -index 49e9f4fa1..9e1cc172f 100644 ---- a/core/arch/arm/kernel/link.mk -+++ b/core/arch/arm/kernel/link.mk -@@ -37,6 +37,7 @@ link-ldflags += --sort-section=alignment - link-ldflags += --fatal-warnings - link-ldflags += --gc-sections - link-ldflags += $(link-ldflags-common) -+link-ldflags += $(call ld-option,--no-warn-rwx-segments) - - link-ldadd = $(LDADD) - link-ldadd += $(ldflags-external) -@@ -61,6 +62,7 @@ link-script-cppflags := \ - $(cppflagscore)) - - ldargs-all_objs := -T $(link-script-dummy) --no-check-sections \ -+ $(call ld-option,--no-warn-rwx-segments) \ - $(link-ldflags-common) \ - $(link-objs) $(link-ldadd) $(libgcccore) - cleanfiles += $(link-out-dir)/all_objs.o -@@ -75,7 +77,7 @@ $(link-out-dir)/unpaged_entries.txt: $(link-out-dir)/all_objs.o - $(AWK) '/ ____keep_pager/ { printf "-u%s ", $$3 }' > $@ - - unpaged-ldargs := -T $(link-script-dummy) --no-check-sections --gc-sections \ -- $(link-ldflags-common) -+ $(link-ldflags-common) $(call ld-option,--no-warn-rwx-segments) - unpaged-ldadd := $(objs) $(link-ldadd) $(libgcccore) - cleanfiles += $(link-out-dir)/unpaged.o - $(link-out-dir)/unpaged.o: $(link-out-dir)/unpaged_entries.txt -@@ -104,7 +106,7 @@ $(link-out-dir)/init_entries.txt: $(link-out-dir)/all_objs.o - $(AWK) '/ ____keep_init/ { printf "-u%s ", $$3 }' > $@ - - init-ldargs := -T $(link-script-dummy) --no-check-sections --gc-sections \ -- $(link-ldflags-common) -+ $(link-ldflags-common) $(call ld-option,--no-warn-rwx-segments) - init-ldadd := $(link-objs-init) $(link-out-dir)/version.o $(link-ldadd) \ - $(libgcccore) - cleanfiles += $(link-out-dir)/init.o diff --git a/meta-arm/recipes-security/optee/optee-os_4.0.0.bb b/meta-arm/recipes-security/optee/optee-os_4.0.0.bb index a5a594fb..cb326042 100644 --- a/meta-arm/recipes-security/optee/optee-os_4.0.0.bb +++ b/meta-arm/recipes-security/optee/optee-os_4.0.0.bb @@ -6,7 +6,5 @@ FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:" SRCREV = "2a5b1d1232f582056184367fb58a425ac7478ec6" SRC_URI += " \ - file://0002-core-Define-section-attributes-for-clang.patch \ file://0003-optee-enable-clang-support.patch \ - file://0004-core-link-add-no-warn-rwx-segments.patch \ "