Dmitrii Kuvaiskii 8811271814 [LibOS] DONTMERGE: Workaround test_user_memory() of alt-stack allocated syscall arguments ...

Graphene doesn't switch to an alternate stack of the application on
signal handling. This means that app signal handler operates on
Graphene-internal alt stack. If app allocates some variables on this
stack and then uses them as syscall arguments, Graphene syscall
emulators typically check these arguments via test_user_memory() and
fail because they observe "invalid" (Graphene-internal) memory regions.

Proper fix of this issue is to switch stacks when jumping to/from
Graphene LibOS and application. See #1218. For now simply stub these
test_user_memory() checks in appropriate places.

2020-11-18 07:30:20 -05:00

..

gcc-patches

[LibOS] Build GCC with patched libgomp.so (OpenMP runtime library)

2020-08-24 11:00:50 -07:00

glibc-patches

[LibOS/glibc] Add frame offset information when calling syscalldb

2020-10-05 02:13:17 +02:00

shim

[LibOS] DONTMERGE: Workaround test_user_memory() of alt-stack allocated syscall arguments

2020-11-18 07:30:20 -05:00

.gitignore

[LibOS] Build GCC with patched libgomp.so (OpenMP runtime library)

2020-08-24 11:00:50 -07:00

glibc-checksums

[LibOS] Improve Glibc patches to contain complete index hashes

2020-07-07 20:42:51 +00:00

Makefile

[LibOS] Makefile: Revert commit 'Make sure to build GCC with GCC'

2020-10-02 01:17:51 -07:00