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arm/trusted-firmware-a: work around RWX permission error on segment

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Binutils 2.39 now warns when a segment has RXW permissions[1]:

  aarch64-none-elf-ld.bfd: warning: bl31.elf has a LOAD segment with RWX permissions

However, TF-A passes --fatal-warnings to LD, so this is a build failure.

There is a ticket filed upstream[2], so until that is resolved we can
disable this warning.

[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=ba951afb99912da01a6e8434126b8fac7aa75107
[2] https://developer.trustedfirmware.org/T996

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Ross Burton
2022-08-22 17:55:04 +01:00
committed by Jon Mason
parent 6ebafcc6d8
commit 977c5222d8
2 changed files with 40 additions and 1 deletions
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meta-arm/recipes-bsp/trusted-firmware-a/files/rwx-segments.patch
+38
View File
@@ -0,0 +1,38 @@
Binutils 2.39 now warns when a segment has RXW permissions[1]:
aarch64-none-elf-ld.bfd: warning: bl31.elf has a LOAD segment with RWX
permissions
However, TF-A passes --fatal-warnings to LD, so this is a build failure.
There is a ticket filed upstream[2], so until that is resolved just
remove --fatal-warnings.
[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=ba951afb99912da01a6e8434126b8fac7aa75107
[2] https://developer.trustedfirmware.org/T996
Upstream-Status: Inappropriate
Signed-off-by: Ross Burton <ross.burton@arm.com>
diff --git a/Makefile b/Makefile
index 3941f8698..13bbac348 100644
--- a/Makefile
+++ b/Makefile
@@ -418,7 +418,7 @@ TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH))
# LD = gcc (used when GCC LTO is enabled)
else ifneq ($(findstring gcc,$(notdir $(LD))),)
# Pass ld options with Wl or Xlinker switches
-TF_LDFLAGS += -Wl,--fatal-warnings -O1
+TF_LDFLAGS += -O1
TF_LDFLAGS += -Wl,--gc-sections
ifeq ($(ENABLE_LTO),1)
ifeq (${ARCH},aarch64)
@@ -435,7 +435,7 @@ TF_LDFLAGS += $(subst --,-Xlinker --,$(TF_LDFLAGS_$(ARCH)))
# LD = gcc-ld (ld) or llvm-ld (ld.lld) or other
else
-TF_LDFLAGS += --fatal-warnings -O1
+TF_LDFLAGS += -O1
TF_LDFLAGS += --gc-sections
# ld.lld doesn't recognize the errata flags,
# therefore don't add those in that case
meta-arm/recipes-bsp/trusted-firmware-a/trusted-firmware-a.inc
+2 -1
View File
@@ -5,7 +5,8 @@ PACKAGE_ARCH = "${MACHINE_ARCH}"
inherit deploy
SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https;name=tfa;branch=master"
SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https;name=tfa;branch=master \
file://rwx-segments.patch"
UPSTREAM_CHECK_GITTAGREGEX = "^v(?P<pver>\d+(\.\d+)+)$"