When using LTO, we can throw away the --gc-sections flag, but only if
using private libgcc.
When using system's libgcc, --gc-sections is still needed, otherwise
linking will fail due to undefined references to libc's symbols.
Signed-off-by: Marek Behún <marek.be...@nic.cz>
---
arch/arm/config.mk | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/config.mk b/arch/arm/config.mk
index f556ee3329..16c63e1266 100644
--- a/arch/arm/config.mk
+++ b/arch/arm/config.mk
@@ -15,7 +15,9 @@ CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections
-fdata-sections \
-fstack-protector-strong
CFLAGS_EFI := -fpic -fshort-wchar
+ifneq ($(CONFIG_LTO)$(CONFIG_USE_PRIVATE_LIBGCC),yy)
LDFLAGS_FINAL += --gc-sections
+endif
ifndef CONFIG_LTO
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
--
2.26.3
