diff options
Diffstat (limited to 'meta-arm/meta-arm-bsp/recipes-security/optee/optee-os-3.18.0/0005-core-ldelf-link-add-z-execstack.patch')
| -rw-r--r-- | meta-arm/meta-arm-bsp/recipes-security/optee/optee-os-3.18.0/0005-core-ldelf-link-add-z-execstack.patch | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/meta-arm/meta-arm-bsp/recipes-security/optee/optee-os-3.18.0/0005-core-ldelf-link-add-z-execstack.patch b/meta-arm/meta-arm-bsp/recipes-security/optee/optee-os-3.18.0/0005-core-ldelf-link-add-z-execstack.patch deleted file mode 100644 index 862a76b427..0000000000 --- a/meta-arm/meta-arm-bsp/recipes-security/optee/optee-os-3.18.0/0005-core-ldelf-link-add-z-execstack.patch +++ /dev/null @@ -1,93 +0,0 @@ -From 63445958678b58c5adc7eca476b216e5dc0f4195 Mon Sep 17 00:00:00 2001 -From: Jerome Forissier <jerome.forissier@linaro.org> -Date: Tue, 23 Aug 2022 11:41:00 +0000 -Subject: [PATCH] core, ldelf: link: add -z execstack - -When building for arm32 with GNU binutils 2.39, the linker outputs -warnings when generating some TEE core binaries (all_obj.o, init.o, -unpaged.o and tee.elf) as well as ldelf.elf: - - arm-poky-linux-gnueabi-ld.bfd: warning: atomic_a32.o: missing .note.GNU-stack section implies executable stack - arm-poky-linux-gnueabi-ld.bfd: NOTE: This behaviour is deprecated and will be removed in a future version of the linker - -The permissions used when mapping the TEE core stacks do not depend on -any metadata found in the ELF file. Similarly when the TEE core loads -ldelf it already creates a non-executable stack regardless of ELF -information. Therefore we can safely ignore the warnings. This is done -by adding the '-z execstack' option. - -Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> - -Signed-off-by: Anton Antonov <Anton.Antonov@arm.com> -Upstream-Status: Backport [https://github.com/OP-TEE/optee_os/pull/5499] ---- - core/arch/arm/kernel/link.mk | 13 +++++++++---- - ldelf/link.mk | 3 +++ - 2 files changed, 12 insertions(+), 4 deletions(-) - -diff --git a/core/arch/arm/kernel/link.mk b/core/arch/arm/kernel/link.mk -index c39d43cbfc5b..0e96e606cd9d 100644 ---- a/core/arch/arm/kernel/link.mk -+++ b/core/arch/arm/kernel/link.mk -@@ -9,6 +9,11 @@ link-script-dep = $(link-out-dir)/.kern.ld.d - - AWK = awk - -+link-ldflags-common += $(call ld-option,--no-warn-rwx-segments) -+ifeq ($(CFG_ARM32_core),y) -+link-ldflags-common += $(call ld-option,--no-warn-execstack) -+endif -+ - link-ldflags = $(LDFLAGS) - ifeq ($(CFG_CORE_ASLR),y) - link-ldflags += -pie -Bsymbolic -z norelro $(ldflag-apply-dynamic-relocs) -@@ -31,7 +36,7 @@ link-ldflags += -T $(link-script-pp) -Map=$(link-out-dir)/tee.map - link-ldflags += --sort-section=alignment - link-ldflags += --fatal-warnings - link-ldflags += --gc-sections --link-ldflags += $(call ld-option,--no-warn-rwx-segments) -+link-ldflags += $(link-ldflags-common) - - link-ldadd = $(LDADD) - link-ldadd += $(ldflags-external) -@@ -56,7 +61,7 @@ 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 - $(link-out-dir)/all_objs.o: $(objs) $(libdeps) $(MAKEFILE_LIST) -@@ -70,7 +75,7 @@ $(link-out-dir)/unpaged_entries.txt: $(link-out-dir)/all_objs.o - $(AWK) '/ ____keep_pager/ { printf "-u%s ", $$3 }' > $@ - - unpaged-ldargs := -T $(link-script-dummy) --no-check-sections --gc-sections \ -- $(call ld-option,--no-warn-rwx-segments) -+ $(link-ldflags-common) - unpaged-ldadd := $(objs) $(link-ldadd) $(libgcccore) - cleanfiles += $(link-out-dir)/unpaged.o - $(link-out-dir)/unpaged.o: $(link-out-dir)/unpaged_entries.txt -@@ -99,7 +104,7 @@ $(link-out-dir)/init_entries.txt: $(link-out-dir)/all_objs.o - $(AWK) '/ ____keep_init/ { printf "-u%s ", $$3 }' > $@ - - init-ldargs := -T $(link-script-dummy) --no-check-sections --gc-sections \ -- $(call ld-option,--no-warn-rwx-segments) -+ $(link-ldflags-common) - init-ldadd := $(link-objs-init) $(link-out-dir)/version.o $(link-ldadd) \ - $(libgcccore) - cleanfiles += $(link-out-dir)/init.o -diff --git a/ldelf/link.mk b/ldelf/link.mk -index 64c8212a06fa..bd49551e7065 100644 ---- a/ldelf/link.mk -+++ b/ldelf/link.mk -@@ -20,6 +20,9 @@ link-ldflags += -z max-page-size=4096 # OP-TEE always uses 4K alignment - ifeq ($(CFG_CORE_BTI),y) - link-ldflags += $(call ld-option,-z force-bti) --fatal-warnings - endif -+ifeq ($(CFG_ARM32_$(sm)), y) -+link-ldflags += $(call ld-option,--no-warn-execstack) -+endif - link-ldflags += $(link-ldflags$(sm)) - - link-ldadd = $(addprefix -L,$(libdirs)) |