mirror of https://github.com/clearlinux/graphene.git synced 2026-04-28 19:23:39 +00:00

Files

borysp c24bddd5aa [LibOS] Rework signal handling and syscall emulation

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.

2021-02-05 14:11:21 +01:00

scripts

[Examples] Add R example to Jenkins CI

2020-09-09 13:40:09 +02:00

Makefile

[Pal,LibOS] New logging system

2021-01-20 17:27:29 +01:00

R.manifest.template

[LibOS] Rework signal handling and syscall emulation

2021-02-05 14:11:21 +01:00

README.md

Introduce one, central manifest, zero-config children and constant MRENCLAVE

2021-01-12 19:53:24 +01:00

README.md

R example

This directory contains an example for running R in Graphene, including the Makefile and a template for generating the manifest. The application was 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.

Building with a local R installation

By default, the make command creates the manifest for the system R binary (/usr/lib/R/bin/exec/R). If you have a local R installation, you may create the manifest with the R_HOME variable set accordingly. For example:

make R_HOME=<install path>/lib/R SGX=1

Run R with Graphene

When running R with Graphene, please use the --vanilla or --no-save option.

Here's an example of running an R script under Graphene:

Without SGX:

./pal_loader ./R --slave --vanilla -f scripts/sample.r
./pal_loader ./R --slave --vanilla -f scripts/R-benchmark-25.R

With SGX:

SGX=1 ./pal_loader ./R --slave --vanilla -f scripts/sample.r
SGX=1 ./pal_loader ./R --slave --vanilla -f scripts/R-benchmark-25.R