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Supporting these options complicates the design of Graphene and loading
logic significantly, providing little useful functionality:
- loader.exec:
- the main user of it were our tests
- worked only for the first process spawned inside Graphene, as it
was a unidirectional manifest->binary mapping, so the child
process didn't know about the corresponding manifest.
- sgx.sigfile:
- probably all existing usages of it were completely redundant
- was resolved relatively to CWD instead of the executable location,
which made it mostly useless
From now on, the correct location of the files is:
- either place the manifest and sigfile next to the binary, with a
matching name, or
- create a symlink to the binary in the folder where manifests are
stored and launch it through this symlink
Bash example
This directory contains an example for running Bash in Graphene, including the Makefile and a template for generating the manifest. The application is tested on Ubuntu 16.04, with both normal Linux and SGX platforms.
Generating the manifest
Building for Linux
Run make (non-debug) or make DEBUG=1 (debug) in the directory.
Building for SGX
Run make SGX=1 (non-debug) or make SGX=1 DEBUG=1 (debug) in the directory.
Running Bash with Graphene
Here's an example of running Bash scripts under Graphene:
Without SGX:
./pal_loader bash.manifest -c "ls"
./pal_loader bash.manifest -c "cd scripts && bash bash_test.sh 2"
With SGX:
SGX=1 ./pal_loader bash.manifest -c "ls"
SGX=1 ./pal_loader bash.manifest -c "cd scripts && bash bash_test.sh 2"