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Paweł Marczewski 17ab04db59 [Pal,LibOS] New logging system
Instead of 'loader.debug_type', introduce 'loader.log_level'
and 'loader.log_file', along with a set of definitions for
logging at a chosen level.

For now, the call sites keep using the legacy macros (SGX_DBG and
debug()), because converting them all will conflict with other
big changes in the code base. The existing LibOS calls are
assumed to be at 'info' level.
2021-01-20 17:27:29 +01:00

117 lines
4.1 KiB
Makefile

# Build Busybox as follows:
#
# - make -- create non-SGX no-debug-log manifest
# - make DEBUG=1 -- create non-SGX debug-log manifest
# - make SGX=1 -- create SGX no-debug-log manifest
# - make SGX=1 DEBUG=1 -- create SGX debug-log manifest
#
# Any of these invocations downloads Busybox and builds it.
#
# Use `make clean` to remove Graphene-generated files and `make distclean` to
# additionally remove the Busybox source.
################################# CONSTANTS ###################################
# Relative path to Graphene root
GRAPHENEDIR = ../..
SGX_SIGNER_KEY ?= $(GRAPHENEDIR)/Pal/src/host/Linux-SGX/signer/enclave-key.pem
SRCDIR = src
BUSYBOX_URL ?= https://busybox.net/downloads/busybox-1.32.0.tar.bz2
BUSYBOX_SHA256 ?= c35d87f1d04b2b153d33c275c2632e40d388a88f19a9e71727e0bbbff51fe689
ifeq ($(DEBUG),1)
GRAPHENE_LOG_LEVEL = debug
else
GRAPHENE_LOG_LEVEL = error
endif
.PHONY: all
all: busybox busybox.manifest pal_loader
ifeq ($(SGX),1)
all: busybox.manifest.sgx busybox.sig busybox.token
endif
include ../../Scripts/Makefile.configs
############################ BUSYBOX EXECUTABLE ###############################
# Busybox is built as usual, without any changes to the build process. The
# source is downloaded and then built via classic make. The result of this
# build process is the final executable "src/busybox".
$(SRCDIR)/Makefile:
$(GRAPHENEDIR)/Scripts/download --output busybox.tar.bz2 \
--sha256 $(BUSYBOX_SHA256) --url $(BUSYBOX_URL)
mkdir $(SRCDIR)
tar -C $(SRCDIR) --strip-components=1 -xf busybox.tar.bz2
$(SRCDIR)/.config: $(SRCDIR)/Makefile
$(MAKE) -C $(SRCDIR) clean
$(MAKE) -C $(SRCDIR) defconfig
# Enable usage of Busybox's built-in applets
sed -e 's/.*CONFIG_FEATURE_SH_STANDALONE.*/CONFIG_FEATURE_SH_STANDALONE=y/' \
-i $(SRCDIR)/.config
# Currently '/proc/self/exe' is bugged in graphene, so manually set path
# to the Busybox binary
sed -e 's/.*CONFIG_BUSYBOX_EXEC_PATH.*/CONFIG_BUSYBOX_EXEC_PATH="\/busybox"/' \
-i $(SRCDIR)/.config
$(SRCDIR)/busybox: $(SRCDIR)/.config
$(MAKE) -C $(SRCDIR)
############################## BUSYBOX MANIFEST ###############################
# The template file contains almost all necessary information to run Busybox
# under Graphene / Graphene-SGX. We create busybox.manifest (to be run under
# non-SGX Graphene) by simply replacing variables in the template file via sed.
busybox.manifest: busybox.manifest.template
sed -e 's|$$(GRAPHENEDIR)|'"$(GRAPHENEDIR)"'|g' \
-e 's|$$(GRAPHENE_LOG_LEVEL)|'"$(GRAPHENE_LOG_LEVEL)"'|g' \
-e 's|$$(ARCH_LIBDIR)|'"$(ARCH_LIBDIR)"'|g' \
$< > $@
# Manifest for Graphene-SGX requires special "pal-sgx-sign" procedure. This procedure measures all
# Busybox trusted files, adds the measurement to the resulting manifest.sgx file (among other,
# less important SGX options) and creates busybox.sig (SIGSTRUCT object).
#
# Graphene-SGX requires EINITTOKEN and SIGSTRUCT objects (see SGX hardware ABI, in particular EINIT
# instruction). The "pal-sgx-get-token" script generates EINITTOKEN based on a SIGSTRUCT and puts it
# in .token file. Note that filenames must be the same as the manifest name (i.e., "busybox").
# EINITTOKEN must be generated on the machine where the application will run, not where it was
# built.
busybox.manifest.sgx: busybox.manifest busybox
$(GRAPHENEDIR)/Pal/src/host/Linux-SGX/signer/pal-sgx-sign \
-libpal $(GRAPHENEDIR)/Runtime/libpal-Linux-SGX.so \
-key $(SGX_SIGNER_KEY) \
-manifest $< -output $@
$(GRAPHENEDIR)/Pal/src/host/Linux-SGX/signer/pal-sgx-get-token \
-output busybox.token -sig busybox.sig
########################### COPIES OF EXECUTABLES #############################
# Busybox build process creates the final executable as "src/busybox".
# Copy Busybox binary to our root directory and create a link to pal_loader for
# simplicity.
busybox: $(SRCDIR)/busybox
cp $(SRCDIR)/busybox busybox
pal_loader:
ln -s $(GRAPHENEDIR)/Runtime/pal_loader $@
################################## CLEANUP ####################################
.PHONY: clean
clean:
$(RM) *.token *.sig *.manifest.sgx *.manifest pal_loader busybox
.PHONY: distclean
distclean: clean
$(RM) -r $(SRCDIR) busybox.tar.bz2