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Makefile: Rename CROSS_COMPILE to CROSS_COMPILE_PREFIX

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Make it clear what this environment variable defines and update
the README.md file to explain that.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
This commit is contained in:
Damien Le Moal
2018-12-25 15:37:48 +09:00
parent fef12701fd
commit d06dca9bcc
2 changed files with 11 additions and 10 deletions
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14
Makefile
View File

@@ -102,7 +102,7 @@ deps-y+=$(lib-objs-path-y:.o=.dep)
deps-y+=$(firmware-objs-path-y:.o=.dep) deps-y+=$(firmware-objs-path-y:.o=.dep)
# Setup compilation environment # Setup compilation environment
cpp=$(CROSS_COMPILE)cpp cpp=$(CROSS_COMPILE_PREFIX)cpp
cppflags+=-DOPENSBI_MAJOR=$(MAJOR) cppflags+=-DOPENSBI_MAJOR=$(MAJOR)
cppflags+=-DOPENSBI_MINOR=$(MINOR) cppflags+=-DOPENSBI_MINOR=$(MINOR)
cppflags+=-I$(platform_dir)/include cppflags+=-I$(platform_dir)/include
@@ -110,7 +110,7 @@ cppflags+=-I$(platform_common_dir)/include
cppflags+=-I$(include_dir) cppflags+=-I$(include_dir)
cppflags+=$(platform-cppflags-y) cppflags+=$(platform-cppflags-y)
cppflags+=$(firmware-cppflags-y) cppflags+=$(firmware-cppflags-y)
cc=$(CROSS_COMPILE)gcc cc=$(CROSS_COMPILE_PREFIX)gcc
cflags=-g -Wall -Werror -nostdlib -fno-strict-aliasing -O2 cflags=-g -Wall -Werror -nostdlib -fno-strict-aliasing -O2
cflags+=-fno-omit-frame-pointer -fno-optimize-sibling-calls cflags+=-fno-omit-frame-pointer -fno-optimize-sibling-calls
cflags+=-mno-save-restore -mstrict-align cflags+=-mno-save-restore -mstrict-align
@@ -118,7 +118,7 @@ cflags+=$(cppflags)
cflags+=$(platform-cflags-y) cflags+=$(platform-cflags-y)
cflags+=$(firmware-cflags-y) cflags+=$(firmware-cflags-y)
cflags+=$(EXTRA_CFLAGS) cflags+=$(EXTRA_CFLAGS)
as=$(CROSS_COMPILE)gcc as=$(CROSS_COMPILE_PREFIX)gcc
asflags=-g -Wall -nostdlib -D__ASSEMBLY__ asflags=-g -Wall -nostdlib -D__ASSEMBLY__
asflags+=-fno-omit-frame-pointer -fno-optimize-sibling-calls asflags+=-fno-omit-frame-pointer -fno-optimize-sibling-calls
asflags+=-mno-save-restore -mstrict-align asflags+=-mno-save-restore -mstrict-align
@@ -126,15 +126,15 @@ asflags+=$(cppflags)
asflags+=$(platform-asflags-y) asflags+=$(platform-asflags-y)
asflags+=$(firmware-asflags-y) asflags+=$(firmware-asflags-y)
asflags+=$(EXTRA_ASFLAGS) asflags+=$(EXTRA_ASFLAGS)
ar=$(CROSS_COMPILE)ar ar=$(CROSS_COMPILE_PREFIX)ar
arflags=rcs arflags=rcs
ld=$(CROSS_COMPILE)gcc ld=$(CROSS_COMPILE_PREFIX)gcc
ldflags=-g -Wall -nostdlib -Wl,--build-id=none ldflags=-g -Wall -nostdlib -Wl,--build-id=none
ldflags+=$(platform-ldflags-y) ldflags+=$(platform-ldflags-y)
ldflags+=$(firmware-ldflags-y) ldflags+=$(firmware-ldflags-y)
merge=$(CROSS_COMPILE)ld merge=$(CROSS_COMPILE_PREFIX)ld
mergeflags=-r mergeflags=-r
objcopy=$(CROSS_COMPILE)objcopy objcopy=$(CROSS_COMPILE_PREFIX)objcopy
# Setup functions for compilation # Setup functions for compilation
define dynamic_flags define dynamic_flags

7
README.md
View File

@@ -28,8 +28,9 @@ We can create three things using the RISC-V OpenSBI project:
How to Build? How to Build?
------------- -------------
For cross-compiling, please ensure that CROSS_COMPILE environment For cross-compiling, the environment variable CROSS_COMPILE_PREFIX must be
variable is set before starting build system. defined to specify the toolchain executable name prefix, e.g.
"riscv64-unknown-elf-" for riscv64-unknown-elf-gcc.
The libplatsbi.a and firmwares are optional and only built when The libplatsbi.a and firmwares are optional and only built when
`PLATFORM=<platform_subdir>` parameter is specified to top-level make. `PLATFORM=<platform_subdir>` parameter is specified to top-level make.
@@ -78,4 +79,4 @@ We also prefer source level documentation, so wherever possible we describe
stuff directly in the source code. This helps us maintain source and its stuff directly in the source code. This helps us maintain source and its
documentation at the same place. For source level documentation we strictly documentation at the same place. For source level documentation we strictly
follow Doxygen style. Please refer [Doxygen manual] follow Doxygen style. Please refer [Doxygen manual]
(http://www.stack.nl/~dimitri/doxygen/manual.html) for details. (http://www.stack.nl/~dimitri/doxygen/manual.html) for details.