diff options
Diffstat (limited to 'arch/um/sys-x86_64/stub.S')
| -rw-r--r-- | arch/um/sys-x86_64/stub.S | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/um/sys-x86_64/stub.S b/arch/um/sys-x86_64/stub.S new file mode 100644 index 00000000000..31c14925716 --- /dev/null +++ b/arch/um/sys-x86_64/stub.S @@ -0,0 +1,15 @@ +#include "uml-config.h" + + .globl syscall_stub +.section .__syscall_stub, "x" +syscall_stub: + syscall + /* We don't have 64-bit constants, so this constructs the address + * we need. + */ + movq $(UML_CONFIG_STUB_DATA >> 32), %rbx + salq $32, %rbx + movq $(UML_CONFIG_STUB_DATA & 0xffffffff), %rcx + or %rcx, %rbx + movq %rax, (%rbx) + int3 |