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Kbuild: add LDFLAGS_STANDALONE

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Introduce a new Makefile variable for passing LDFLAGS to standalone
programs. Currently the variable CONFIG_STANDALONE_LOAD_ADDR is
misued on some archs to pass a specific linker script.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Rick Chen <rick@andestech.com>
This commit is contained in:
Daniel Schwierzeck
2018-09-23 19:15:15 +02:00
parent 101860ef69
commit 1d3b97c94e
7 changed files with 14 additions and 10 deletions
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4
arch/mips/cpu/mips32/config.mk
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@@ -3,5 +3,5 @@
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 \
-T $(srctree)/examples/standalone/mips.lds
CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000
LDFLAGS_STANDALONE += -T $(srctree)/examples/standalone/mips.lds

4
arch/mips/cpu/mips64/config.mk
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@@ -3,5 +3,5 @@
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 \
-T $(srctree)/examples/standalone/mips64.lds
CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000
LDFLAGS_STANDALONE += -T $(srctree)/examples/standalone/mips64.lds

4
arch/nds32/config.mk
View File

@@ -12,8 +12,8 @@ ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := nds32le-linux-
endif
CONFIG_STANDALONE_LOAD_ADDR = 0x300000 \
-T $(srctree)/examples/standalone/nds32.lds
CONFIG_STANDALONE_LOAD_ADDR = 0x300000
LDFLAGS_STANDALONE += -T $(srctree)/examples/standalone/nds32.lds
PLATFORM_RELFLAGS += -fno-common -mrelax
PLATFORM_RELFLAGS += -gdwarf-2

4
arch/riscv/config.mk
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@@ -27,8 +27,8 @@ CFLAGS_EFI += -march=rv64ima -mabi=lp64
EFI_LDS := elf_riscv64_efi.lds
endif
CONFIG_STANDALONE_LOAD_ADDR = 0x00000000 \
-T $(srctree)/examples/standalone/riscv.lds
CONFIG_STANDALONE_LOAD_ADDR = 0x00000000
LDFLAGS_STANDALONE += -T $(srctree)/examples/standalone/riscv.lds
PLATFORM_CPPFLAGS += -ffixed-gp -fpic
PLATFORM_RELFLAGS += -fno-common -gdwarf-2 -ffunction-sections

2
arch/sh/config.mk
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@@ -9,7 +9,7 @@ endif
CONFIG_STANDALONE_LOAD_ADDR ?= 0x8C000000
ifeq ($(CPU),sh2)
CONFIG_STANDALONE_LOAD_ADDR += -EB
LDFLAGS_STANDALONE += -EB
endif
PLATFORM_CPPFLAGS += -DCONFIG_SH -D__SH__

2
config.mk
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@@ -15,6 +15,7 @@ PLATFORM_CPPFLAGS :=
PLATFORM_LDFLAGS :=
LDFLAGS :=
LDFLAGS_FINAL :=
LDFLAGS_STANDALONE :=
OBJCOPYFLAGS :=
# clear VENDOR for tcsh
VENDOR :=
@@ -75,4 +76,5 @@ LDFLAGS_FINAL += -Bstatic
export PLATFORM_CPPFLAGS
export RELFLAGS
export LDFLAGS_FINAL
export LDFLAGS_STANDALONE
export CONFIG_STANDALONE_LOAD_ADDR

4
examples/standalone/Makefile
View File

@@ -45,6 +45,8 @@ endif
# source file.
ccflags-y += $(call cc-option,-fno-toplevel-reorder)
LDFLAGS_STANDALONE += -Ttext $(CONFIG_STANDALONE_LOAD_ADDR)
#########################################################################
quiet_cmd_link_lib = LD $@
@@ -54,7 +56,7 @@ $(LIB): $(LIBOBJS) FORCE
$(call if_changed,link_lib)
quiet_cmd_link_elf = LD $@
cmd_link_elf = $(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
cmd_link_elf = $(LD) $(LDFLAGS) $(LDFLAGS_STANDALONE) -g \
-o $@ -e $(SYM_PREFIX)$(@F) $< $(LIB) $(PLATFORM_LIBGCC)
$(ELF): $(obj)/%: $(obj)/%.o $(LIB) FORCE