From f5f47b3340a8d490243640ff8fe6aa78aae9503d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bernhard=20Rosenkr=C3=A4nzer?=
<bernhard.rosenkraenzer.ext@huawei.com>
Date: Thu, 21 Oct 2021 22:40:17 +0200
Subject: [PATCH] gcc: Use DWARF-4 by default on non-Linux targets
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Support for DWARF-5 is incomplete on Zephyr due to its reliance
on pyelftools for tests.
Default to DWARF-4 on non-Linux targets for the time being.
Signed-off-by: Bernhard Rosenkränzer <bernhard.rosenkraenzer.ext@huawei.com>
---
meta-oniro-staging/recipes-devtools/gcc/gcc-cross.inc | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/meta-oniro-staging/recipes-devtools/gcc/gcc-cross.inc b/meta-oniro-staging/recipes-devtools/gcc/gcc-cross.inc
index 348bd1df..e9066274 100644
--- a/meta-oniro-staging/recipes-devtools/gcc/gcc-cross.inc
+++ b/meta-oniro-staging/recipes-devtools/gcc/gcc-cross.inc
@@ -47,6 +47,15 @@ ARCH_FLAGS_FOR_TARGET += "-isystem${STAGING_DIR_TARGET}${target_includedir}"
do_configure_prepend () {
install -d ${RECIPE_SYSROOT}${target_includedir}
touch ${RECIPE_SYSROOT}${target_includedir}/limits.h
+
+ if ! echo ${@d.getVar("TARGET_OS")} |grep -qi linux; then
+ # Building Zephyr with DWARF-5 is problematic because
+ # its kernel tests use pyelftools, which has incomplete
+ # DWARF-5 support (even after applying preliminary
+ # support patches). Use DWARF-4 on Zephyr and FreeRTOS
+ # for the time being.
+ sed -i -e 's,Var(dwarf_version) Init(5),Var(dwarf_version) Init(4),' ${S}/gcc/common.opt
+ fi
}
do_compile () {
--
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