[PATCH u-boot v4 15/36] build: link with --build-id=none

[Marek Behún]

Some toolchains are compiled so that they pass a --build-id=something
parameter to the linker implicitly.

This causes U-Boot LTO linking to fail with something like:
  ld: section .note.gnu.build-id LMA ... overlaps section .text LMA ...
because U-Boot's link scripts do not currently handle .note.gnu.build-id
section.

Fix this by explicitly disabling build-id.

Signed-off-by: Marek Behún <marek.behun at nic.cz>
---
 Makefile             | 2 ++
 scripts/Makefile.spl | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 2329edc159..a62f7e3f7c 100644
--- a/Makefile
+++ b/Makefile
@@ -996,6 +996,8 @@ LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 
+LDFLAGS_u-boot += --build-id=none
+
 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 endif
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 7872cbaabe..5be1a9ba1b 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -399,6 +399,8 @@ LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
 
+LDFLAGS_$(SPL_BIN) += --build-id=none
+
 # Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
 ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
-- 
2.26.3