Bugfies:

- Fix #34
- Reserving syscall numbers above 300
- Implement sendmmsg and recvmmsg.
- Proper usage of PAL_STRERROR in PAL
- Remove DEBUG_MUTEX

LibOS/shim/test/apps/python/python.manifest.template

@@ -3,7 +3,7 @@
 loader.preload = file:$(SHIMPATH)
 loader.exec = file:/usr/bin/python
 loader.execname = python
-loader.env.LD_LIBRARY_PATH = /graphene:/host:/usr/lib:/usr/lib/x86_64-linux-gnu
+loader.env.LD_LIBRARY_PATH = /graphene:/graphene/resolv:/host:/usr/lib:/usr/lib/x86_64-linux-gnu
 loader.env.PATH = /usr/bin:/bin
 loader.env.USERNAME =
 loader.env.HOME =
@@ -26,6 +26,10 @@ fs.mount.usr.type = chroot
 fs.mount.usr.path = /usr
 fs.mount.usr.uri = file:/usr
 
+fs.mount.etc.type = chroot
+fs.mount.etc.path = /etc
+fs.mount.etc.uri = file:
+
 sys.stack.size = 256K
 sys.brk.size = 4M
 glibc.heap_size = 16M
@@ -37,6 +41,15 @@ sgx.trusted_files.libm = file:$(LIBCDIR)/libm.so.6
 sgx.trusted_files.libpthread = file:$(LIBCDIR)/libpthread.so.0
 sgx.trusted_files.liburil = file:$(LIBCDIR)/libutil.so.1
 sgx.trusted_files.libz = file:/lib/x86_64-linux-gnu/libz.so.1
+sgx.trusted_files.libnss1 = file:/lib/x86_64-linux-gnu/libnss_compat.so.2
+sgx.trusted_files.libnss2 = file:/lib/x86_64-linux-gnu/libnss_files.so.2
+sgx.trusted_files.libnss3 = file:$(LIBCDIR)/resolv/libnss_dns.so.2
+sgx.trusted_files.libssl = file:/lib/x86_64-linux-gnu/libssl.so.1.0.0
+sgx.trusted_files.libcrypto = file:/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
+sgx.trusted_files.libresolv = file:$(LIBCDIR)/resolv/libresolv.so.2
+sgx.trusted_files.hosts = file:hosts
+sgx.trusted_files.resolv = file:resolv.conf
+sgx.trusted_files.gai = file:gai.conf
 
 sgx.allowed_files.pyhome = file:/usr/lib/python2.7
 sgx.allowed_files.scripts = file:scripts