diff options
Diffstat (limited to 'arch/x86/entry/entry_64_compat.S')
| -rw-r--r-- | arch/x86/entry/entry_64_compat.S | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index e1721dafbcb1..e26c25ca7756 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -183,21 +183,20 @@ ENDPROC(entry_SYSENTER_compat) */ ENTRY(entry_SYSCALL_compat) /* Interrupts are off on entry. */ - SWAPGS_UNSAFE_STACK + swapgs /* Stash user ESP and switch to the kernel stack. */ movl %esp, %r8d movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp - /* Zero-extending 32-bit regs, do not remove */ - movl %eax, %eax - /* Construct struct pt_regs on stack */ pushq $__USER32_DS /* pt_regs->ss */ pushq %r8 /* pt_regs->sp */ pushq %r11 /* pt_regs->flags */ pushq $__USER32_CS /* pt_regs->cs */ pushq %rcx /* pt_regs->ip */ +GLOBAL(entry_SYSCALL_compat_after_hwframe) + movl %eax, %eax /* discard orig_ax high bits */ pushq %rax /* pt_regs->orig_ax */ pushq %rdi /* pt_regs->di */ pushq %rsi /* pt_regs->si */ @@ -294,7 +293,6 @@ ENTRY(entry_INT80_compat) /* * Interrupts are off on entry. */ - PARAVIRT_ADJUST_EXCEPTION_FRAME ASM_CLAC /* Do this early to minimize exposure */ SWAPGS @@ -342,8 +340,7 @@ ENTRY(entry_INT80_compat) jmp restore_regs_and_iret END(entry_INT80_compat) - ALIGN -GLOBAL(stub32_clone) +ENTRY(stub32_clone) /* * The 32-bit clone ABI is: clone(..., int tls_val, int *child_tidptr). * The 64-bit clone ABI is: clone(..., int *child_tidptr, int tls_val). @@ -353,3 +350,4 @@ GLOBAL(stub32_clone) */ xchg %r8, %rcx jmp sys_clone +ENDPROC(stub32_clone) |