Makefile: Make sure ld is always aware of the target abi/emulation

On Makefile merge_objs calls ld without providing any hints
on the target so on a multilib toolchain for example it will
always pick the default one (elf64-littleriscv) which will
then result a failure when compiling on RV32 since the objects
will be 32bits and the target will be 64bits. The same happens
on compile_ld that calls gcc without CFLAGS so it doesn't
get mabi/march.

With this patch OpenSBI compiles on RV32 (PLATFORM_RISCV_XLEN=32),
I tested fw_jump.elf on qemu (but it doesn't boot the kernel yet
-bbl also doesn't boot the kernel so it may be something else).

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
This commit is contained in:
Nick Kossifidis
2019-02-14 05:37:13 +02:00
committed by Anup Patel
parent 35e617385f
commit 286b80768b

View File

@@ -171,6 +171,8 @@ LDFLAGS += $(platform-ldflags-y)
LDFLAGS += $(firmware-ldflags-y) LDFLAGS += $(firmware-ldflags-y)
MERGEFLAGS += -r MERGEFLAGS += -r
MERGEFLAGS += -b elf$(PLATFORM_RISCV_XLEN)-littleriscv
MERGEFLAGS += -m elf$(PLATFORM_RISCV_XLEN)lriscv
DTCFLAGS = -O dtb DTCFLAGS = -O dtb
@@ -225,7 +227,7 @@ compile_as = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \
$(AS) $(ASFLAGS) $(call dynamic_flags,$(1),$(2)) -c $(2) -o $(1) $(AS) $(ASFLAGS) $(call dynamic_flags,$(1),$(2)) -c $(2) -o $(1)
compile_ld = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \ compile_ld = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \
echo " LD $(subst $(build_dir)/,,$(1))"; \ echo " LD $(subst $(build_dir)/,,$(1))"; \
$(CC) $(3) $(LDFLAGS) -Wl,-T$(2) -o $(1) $(CC) $(CFLAGS) $(3) $(LDFLAGS) -Wl,-T$(2) -o $(1)
compile_ar = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \ compile_ar = $(CMD_PREFIX)mkdir -p `dirname $(1)`; \
echo " AR $(subst $(build_dir)/,,$(1))"; \ echo " AR $(subst $(build_dir)/,,$(1))"; \
$(AR) $(ARFLAGS) $(1) $(2) $(AR) $(ARFLAGS) $(1) $(2)