mirror of
https://gitee.com/bianbu-linux/linux-6.6
synced 2025-07-22 01:43:37 -04:00
aa3d480315
Use the return thunk in asm code. If the thunk isn't needed, it will get patched into a RET instruction during boot by apply_returns(). Since alternatives can't handle relocations outside of the first instruction, putting a 'jmp __x86_return_thunk' in one is not valid, therefore carve out the memmove ERMS path into a separate label and jump to it. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> |
||
|---|---|---|
| .. | ||
| vdso32 | ||
| .gitignore | ||
| checkundef.sh | ||
| extable.c | ||
| extable.h | ||
| Makefile | ||
| vclock_gettime.c | ||
| vdso-layout.lds.S | ||
| vdso-note.S | ||
| vdso.lds.S | ||
| vdso2c.c | ||
| vdso2c.h | ||
| vdso32-setup.c | ||
| vdsox32.lds.S | ||
| vgetcpu.c | ||
| vma.c | ||
| vsgx.S | ||