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https://github.com/clearlinux/graphene.git
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borysp
c24bddd5aa
Change log (most important only):
- unify CPU context structures - now we have only one version -
`PAL_CONTEXT` - which is shared between LibOS and PALs and it should
depend only on the host architecture (not OS),
- syscalls emulation changed:
- dedicated LibOS stack is now used for syscalls emulation,
- removed one indirection level in syscalls table - now it stores
`shim_do_*` functions directly,
- signal handling - completely rewritten:
- all signal queues use proper locking schemes now,
- signals are handled *only* when returning to the user app from LibOS
or PAL,
- nested signals are now possible,
- the app is allowed to jump out of signal handler with the same
sematics as on normal Linux,
- signal altstack is now fully supported,
- syscall restarting is now supported,
- doing a backtrace from the signal handler works properly,
- disallow injecting host-level signals, with one exception, see
`sys.enable_sigterm_injection` manifest option for more details.
# Memcached This directory contains the Makefile and the template manifest for the most recent version of Memcached as of this writing (v1.5.21). This was tested on a machine with SGX v1 and Ubuntu 18.04. The Makefile and the template manifest contain extensive comments and are made self-explanatory. Please review them to gain understanding in Graphene-SGX and requirements for applications running under Graphene-SGX. # Prerequisites Please install `libevent-dev` package. If you want to benchmark with memcslap, also install `libmemcached-tools`. # Quick Start ```sh # build Memcached and the final manifest make SGX=1 # run original Memcached against a benchmark (memtier_benchmark, # install the benchmark on your host OS first) ./memcached & memtier_benchmark --port=11211 --protocol=memcache_binary --hide-histogram killall memcached # run Memcached in non-SGX Graphene against a benchmark # (note -u nobody, for explanation see memcached.manifest.template) ./pal_loader memcached -u nobody & memtier_benchmark --port=11211 --protocol=memcache_binary --hide-histogram killall pal-Linux # run Memcached in Graphene-SGX against a benchmark SGX=1 ./pal_loader memcached -u nobody & memtier_benchmark --port=11211 --protocol=memcache_binary --hide-histogram killall pal-Linux-SGX ```