Commit 68fc8185 authored Mar 17, 2020 by Sami Tolvanen

ANDROID: kbuild: fix module linker script flags for LTO



KBUILD_LDS_MODULE didn't exist in 4.19, it was added in upstream commit
10df06385582 ("kbuild: rebuild modules when module linker scripts are
updated"), which means the module-lto.lds linker script is not actually
passed to the linker. Append the flags directly to KBUILD_LDFLAGS_MODULE
instead.

Bug: 151700304
Fixes: 6cea0477 ("ANDROID: kbuild: merge module sections with LTO")
Change-Id: I600db54d2ff9cd4e287913e8ddd463a20741a4a3
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

parent 998f3331

Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -827,7 +827,7 @@ LD_FLAGS_LTO_CLANG := -mllvm -import-instr-limit=5
		KBUILD_LDFLAGS += $(LD_FLAGS_LTO_CLANG)
		KBUILD_LDFLAGS_MODULE += $(LD_FLAGS_LTO_CLANG)

		KBUILD_LDS_MODULE += $(srctree)/scripts/module-lto.lds
		KBUILD_LDFLAGS_MODULE += -T $(srctree)/scripts/module-lto.lds

		# allow disabling only clang LTO where needed
		DISABLE_LTO_CLANG := -fno-lto