How to change working directory in scons - directory

Question

I have a project built with make, but I want to shift to scons.
However, I could not link object files in scons, so I want to know how to change working directory in scons.
What I exactly want is
make -C $(OBJECTDIRECTORY) -f $(SOURCEDIRECTORY)./Makefile InternalDependency
This is one line from my Makefile, and works well.
However, when scons builds my project, it does
x86_64-pc-linux-ld -o build/kernel32/kernel32.elf -melf_i386 -T scripts/elf_i386.x -nostdlib -e main -Ttext 0x10200 build/kernel32/asmUtils.o build/kernel32/cpu.o build/kernel32/main.o build/kernel32/memory.o build/kernel32/pageManager.o build/kernel32/utils.o
and got an error,
x86_64-pc-linux-ld: cannot find main.o
. Even thouh I do same command in shell manually, I got the same error.
However, if I move to build/kernel32, and do manually
x86_64-pc-linux-ld -o kernel32.elf -melf_i386 -T ../../elf_i386.x -nostdlib -e main -Ttext 0x10200 main.o cpu.o memory.o pageManager.o utils.o asmUtils.o
and it works.
My assumption is ld could not link object files in some upper directory.
So, is there any way to do like "-C" option of Make?
Or any other workaround wayin scons?
Here is my SConscript, and SConsctruct.
In project root directory,
#SConstruct
build_dir = 'build'
# Build
SConscript(['src/SConscript'], variant_dir = build_dir, duplicate = 0)
# Clean
Clean('.', build_dir)
In src directory
#SConscript for src
SConscript(['bootloader/SConscript',
'kernel32/SConscript'])
In kernel32 directory
#SConscript for kernel32
import os, sys
# Build entry
env_entry = Environment(tools=['default', 'nasm'])
target_entry = 'entry.bin'
object_entry = 'entry.s'
output_entry = env_entry.Object(target_entry, object_entry)
# Compile CPP
env_gpp_options = {
'CXX' : 'x86_64-pc-linux-g++',
'CXXFLAGS' : '-std=c++11 -g -m32 -ffreestanding -fno-exceptions -fno-rtti',
'LINK' : 'x86_64-pc-linux-ld',
'LINKFLAGS' : '-melf_i386 -T scripts/elf_i386.x -nostdlib -e main -Ttext 0x10200',
}
env_gpp = Environment(**env_gpp_options)
env_gpp.Append(ENV = {'PATH' : os.environ['PATH']})
object_cpp_list = Glob('*.cpp')
for object_cpp in object_cpp_list:
env_gpp.Object(object_cpp)
# Compile ASM
env_nasm = Environment(tools=['default', 'nasm'])
env_nasm.Append(ASFLAGS='-f elf32')
object_nasm_list = Glob('*.asm')
for object_nasm in object_nasm_list:
env_nasm.Object(object_nasm)
# Find all object file
object_target_list = Glob('*.o')
object_target_list.append('entry.bin')
# Linking
env_link_target = 'kernel32.elf'
env_gpp.Program(env_link_target, object_target_list)
Pleas let me know. Thank you.
The log for "--tree=prune" is
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
x86_64-pc-linux-ld -o build/kernel32/kernel32.elf -melf_i386 -T scripts/elf_i386.x -nostdlib -e main -Ttext 0x10200 build/kernel32/asmUtils.o build/kernel32/cpu.o build/kernel32/main.o build/kernel32/memory.o build/kernel32/pageManager.o build/kernel32/utils.o build/kernel32/entry.bin
+-.
+-SConstruct
+-build
| +-src/SConscript
| +-build/bootloader
| | +-src/bootloader/BootLoader.asm
| | +-src/bootloader/SConscript
| | +-build/bootloader/bootloader.bin
| | +-src/bootloader/BootLoader.asm
| | +-/usr/bin/nasm
| +-build/kernel32
| +-src/kernel32/SConscript
| +-src/kernel32/asmUtils.asm
| +-build/kernel32/asmUtils.o
| | +-src/kernel32/asmUtils.asm
| | +-/usr/bin/nasm
| +-src/kernel32/cpu.cpp
| +-build/kernel32/cpu.o
| | +-src/kernel32/cpu.cpp
| | +-src/kernel32/cpu.hpp
| | +-src/kernel32/types.hpp
| | +-/home/xaliver/BuildTools/cross/bin/x86_64-pc-linux-g++
| +-build/kernel32/entry.bin
| | +-src/kernel32/entry.s
| | +-/usr/bin/nasm
| +-src/kernel32/entry.s
| +-build/kernel32/kernel32.elf
| | +-[build/kernel32/asmUtils.o]
| | +-[build/kernel32/cpu.o]
| | +-build/kernel32/main.o
| | | +-src/kernel32/main.cpp
| | | +-src/kernel32/cpu.hpp
| | | +-src/kernel32/memory.hpp
| | | +-src/kernel32/types.hpp
| | | +-src/kernel32/utils.hpp
| | | +-src/kernel32/pageManager.hpp
| | | +-src/kernel32/page.hpp
| | | +-/home/xaliver/BuildTools/cross/bin/x86_64-pc-linux-g++
| | +-build/kernel32/memory.o
| | | +-src/kernel32/memory.cpp
| | | +-src/kernel32/memory.hpp
| | | +-src/kernel32/pageManager.hpp
| | | +-src/kernel32/page.hpp
| | | +-src/kernel32/types.hpp
| | | +-/home/xaliver/BuildTools/cross/bin/x86_64-pc-linux-g++
| | +-build/kernel32/pageManager.o
| | | +-src/kernel32/pageManager.cpp
| | | +-src/kernel32/pageManager.hpp
| | | +-src/kernel32/page.hpp
| | | +-src/kernel32/types.hpp
| | | +-/home/xaliver/BuildTools/cross/bin/x86_64-pc-linux-g++
| | +-build/kernel32/utils.o
| | | +-src/kernel32/utils.cpp
| | | +-src/kernel32/utils.hpp
| | | +-src/kernel32/types.hpp
| | | +-/home/xaliver/BuildTools/cross/bin/x86_64-pc-linux-g++
| | +-[build/kernel32/entry.bin]
| | +-/home/xaliver/BuildTools/cross/bin/x86_64-pc-linux-ld
| +-src/kernel32/main.cpp
| +-[build/kernel32/main.o]
| +-src/kernel32/memory.cpp
| +-[build/kernel32/memory.o]
| +-src/kernel32/pageManager.cpp
| +-[build/kernel32/pageManager.o]
| +-src/kernel32/utils.cpp
| +-[build/kernel32/utils.o]
+-src
+-src/SConscript
+-src/bootloader
| +-src/bootloader/BootLoader.asm
| +-src/bootloader/SConscript
+-src/kernel32
+-src/kernel32/SConscript
+-src/kernel32/asmUtils.asm
+-src/kernel32/cpu.cpp
+-src/kernel32/cpu.hpp
+-src/kernel32/entry.s
+-src/kernel32/main.cpp
+-src/kernel32/memory.cpp
+-src/kernel32/memory.hpp
+-src/kernel32/page.hpp
+-src/kernel32/pageManager.cpp
+-src/kernel32/pageManager.hpp
+-src/kernel32/types.hpp
+-src/kernel32/utils.cpp
+-src/kernel32/utils.hpp
scons: building terminated because of errors.