From 34ccadcd3334d695806acb84e4d4e5f4ef322e9e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Beh=C3=BAn?= Date: Thu, 20 May 2021 13:24:24 +0200 Subject: [PATCH] ARM: don't use --gc-sections with LTO when using private libgcc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Simon Glass --- 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