tree ff5a6c50635a7dc3900a4dfeb9d5edb3b94e513c
parent 8ce82ac7cb62458a434845fc65c1791291c5dce7
author Masahiro Yamada <yamada.masahiro@socionext.com> 1579236260 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1579872865 +0900

Build: support per-BL LDFLAGS

make_helpers/build_macros.mk supports per-BL CFLAGS. For example,
you can pass compiler flags only to BL31 by using BL31_CFLAGS.

This commit adds per-BL LDFLAGS support, which is useful as well.

My main motivation of this addition is to use it for ENABLE_PIE.
When ENABLE_PIE is enabled, some linker flags are added to TF_LDFLAGS,
which affects all the TF images. It will make more sense to pass the
relevant options only to BL images that support it.

Change-Id: I203acaab0091db5ae0ea6e66460ee7dc8d9c4d75
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>