When building an EFI app we need three things:
- start-up code - relocation code - link script
These are all different for each architecture. We also need special compiler flags in some cases.
Add top-level Makefile variables for these along with documentation.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v4: None Changes in v3: None Changes in v2: None
Makefile | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/Makefile b/Makefile index 37cbcb2..d3a6a12 100644 --- a/Makefile +++ b/Makefile @@ -527,6 +527,15 @@ endif endif endif
+# These are set by the arch-specific config.mk. Make sure they are exported +# so they can be used when building an EFI application. +export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib +export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib +export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib +export CFLAGS_EFI # Compiler flags to add when building EFI app +export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app +export EFI_TARGET # binutils target if EFI is natively supported + # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use # that (or fail if absent). Otherwise, search for a linker script in a # standard location.