Makefile: apply dynamic relocations for LLD
It seems that for aarch64, unless we apply dynamic relocations to the
location being relocated, we fail to boot.
As Fangrui notes:
For dynamic relocations using the RELA format (readelf -Wr), GNU ld
sets the initial content to r_addend; ld.lld doesn't do that by
default (needs --apply-dynamic-relocs).
Otherwise .rodata appears to be full of NUL-bytes before relocation,
causing crashes when trying to invoke the function pointers in
init_sequence_f from initcall_run_list().
Link: https://reviews.llvm.org/D42797
Suggested-by: Fangrui Song <maskray@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Alistair Delva <adelva@google.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
diff --git a/Makefile b/Makefile
index 45f1075..3866cc6 100644
--- a/Makefile
+++ b/Makefile
@@ -1023,7 +1023,7 @@
LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
# ld.lld support
-LDFLAGS_u-boot += -z notext
+LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs)
LDFLAGS_u-boot += --build-id=none