73 lines
2.2 KiB
Plaintext
73 lines
2.2 KiB
Plaintext
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SGX Embedded Systems DDK for the Linux kernel.
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Copyright (C) Imagination Technologies Ltd. All rights reserved.
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======================================================================
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This file covers how to build and install the Imagination Technologies
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SGX DDK for the Linux kernel.
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Build System Environment Variables
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-------------------------------------------
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The SGX DDK Build scripts depend on a number of environment variables
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being setup before compilation or installation of DDK software can
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commence:
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$DISCIMAGE
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The DDK Build scripts install files to the location specified by the
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DISCIMAGE environment variable, when the make install target is used.
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This should point to the target filesystem.
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$ export DISCIMAGE=/path/to/filesystem
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$KERNELDIR
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When building the SGX DDK kernel module, the build needs access
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to the headers of the Linux kernel
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$ export KERNELDIR=/path/to/kernel
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$PATH
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If a cross compiler is being used make sure the PATH environment variable
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includes the path to the toolchain
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$ export PATH=$PATH:/path/to/toolchain
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$CROSS_COMPILE
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Since the SGX DDK Build scripts are geared toward a cross-compilation
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workflow, the CROSS_COMPILE environment variable needs to be set
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$ export CROSS_COMPILE=toolchain-prefix-
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Build and Install Instructions
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-------------------------------------------
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The SGX DDK configures different target builds within directories under
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eurasiacon/build/linux/.
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The supported build targets are:
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all Makes everything
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clean Removes all intermediate files created by a build.
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clobber Removes all binaries for all builds as well.
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install Runs the install script generated by the build.
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The following variables may be set on the command line to influence a build.
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BUILD The type of build being performed.
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Alternatives are release, timing or debug.
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CFLAGS Build dependent optimisations and debug information flags.
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SILENT Determines whether text of commands is produced during build.
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To build for, change to the appropriate target directory, e.g.:
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$ cd eurasiacon/build/linux/platform/kbuild
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Issue the make command:
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$ make BUILD=debug all
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The DDK software must be installed by the root user. Become the root user:
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$ su
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Install the DDK software:
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$ make install
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Become an ordinary user again:
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$ exit
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