diff options
| -rw-r--r-- | src/bits64/segmentation.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/bits64/segmentation.rs b/src/bits64/segmentation.rs index 6d58a80..cf6ccbd 100644 --- a/src/bits64/segmentation.rs +++ b/src/bits64/segmentation.rs @@ -176,6 +176,20 @@ pub unsafe fn rdfsbase() -> u64 { fs_base } +/// "Dereferences" the fs register at offset 0. +pub unsafe fn fs_deref() -> u64 { + let fs: u64; + asm!("movq %fs:0x0, $0" : "=r" (fs) ); + fs +} + +/// "Dereferences" the gs register at offset 0. +pub unsafe fn gs_deref() -> u64 { + let gs: u64; + asm!("movq %gs:0x0, $0" : "=r" (gs) ); + gs +} + /// Swap the GS register. /// /// Exchanges the current GS base register value with the value contained |