diff options
| author | Jamie Liu <jamieliu@google.com> | 2018-05-11 11:16:57 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2018-05-11 11:18:31 -0700 |
| commit | 12c161f27865d0e389cd593c669bd740d7f24692 (patch) | |
| tree | 16cc86b1268592766af6c0fcd018608eacc808bc /pkg/sentry/syscalls | |
| parent | f24db99498a8a061f3b80e633eaa648984338e58 (diff) | |
Implement MAP_32BIT.
PiperOrigin-RevId: 196281052
Change-Id: Ie620a0f983a1bf2570d0003d4754611879335c1c
Diffstat (limited to 'pkg/sentry/syscalls')
| -rw-r--r-- | pkg/sentry/syscalls/linux/sys_mmap.go | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/pkg/sentry/syscalls/linux/sys_mmap.go b/pkg/sentry/syscalls/linux/sys_mmap.go index 2c7d41de0..bfa23f6a8 100644 --- a/pkg/sentry/syscalls/linux/sys_mmap.go +++ b/pkg/sentry/syscalls/linux/sys_mmap.go @@ -45,6 +45,7 @@ func Mmap(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallC private := flags&linux.MAP_PRIVATE != 0 shared := flags&linux.MAP_SHARED != 0 anon := flags&linux.MAP_ANONYMOUS != 0 + map32bit := flags&linux.MAP_32BIT != 0 // Require exactly one of MAP_PRIVATE and MAP_SHARED. if private == shared { @@ -52,12 +53,13 @@ func Mmap(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallC } opts := memmap.MMapOpts{ - Length: args[1].Uint64(), - Offset: args[5].Uint64(), - Addr: args[0].Pointer(), - Fixed: fixed, - Unmap: fixed, - Private: private, + Length: args[1].Uint64(), + Offset: args[5].Uint64(), + Addr: args[0].Pointer(), + Fixed: fixed, + Unmap: fixed, + Map32Bit: map32bit, + Private: private, Perms: usermem.AccessType{ Read: linux.PROT_READ&prot != 0, Write: linux.PROT_WRITE&prot != 0, |