diff options
Diffstat (limited to 'arch/i386/kernel/vsyscall-sysenter.S')
| -rw-r--r-- | arch/i386/kernel/vsyscall-sysenter.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/i386/kernel/vsyscall-sysenter.S b/arch/i386/kernel/vsyscall-sysenter.S index 76b728159403..3b62baa6a371 100644 --- a/arch/i386/kernel/vsyscall-sysenter.S +++ b/arch/i386/kernel/vsyscall-sysenter.S | |||
| @@ -21,6 +21,9 @@ | |||
| 21 | * instruction clobbers %esp, the user's %esp won't even survive entry | 21 | * instruction clobbers %esp, the user's %esp won't even survive entry |
| 22 | * into the kernel. We store %esp in %ebp. Code in entry.S must fetch | 22 | * into the kernel. We store %esp in %ebp. Code in entry.S must fetch |
| 23 | * arg6 from the stack. | 23 | * arg6 from the stack. |
| 24 | * | ||
| 25 | * You can not use this vsyscall for the clone() syscall because the | ||
| 26 | * three dwords on the parent stack do not get copied to the child. | ||
| 24 | */ | 27 | */ |
| 25 | .text | 28 | .text |
| 26 | .globl __kernel_vsyscall | 29 | .globl __kernel_vsyscall |