/* * Code for the vsyscall page. This version uses the old int $0x80 method. * * NOTE: * 1) __kernel_vsyscall _must_ be first in this page. * 2) there are alignment constraints on this stub, see vsyscall-sigreturn.S * for details. */ .text .globl __kernel_vsyscall .type __kernel_vsyscall,@function __kernel_vsyscall: .LSTART_vsyscall: int $0x80 ret .LEND_vsyscall: .size __kernel_vsyscall,.-.LSTART_vsyscall .previous .section .eh_frame,"a",@progbits .LSTARTFRAMEDLSI: .long .LENDCIEDLSI-.LSTARTCIEDLSI .LSTARTCIEDLSI: .long 0 /* CIE ID */ .byte 1 /* Version number */ .string "zR" /* NUL-terminated augmentation string */ .uleb128 1 /* Code alignment factor */ .sleb128 -4 /* Data alignment factor */ .byte 8 /* Return address register column */ .uleb128 1 /* Augmentation value length */ .byte 0x1b /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */ .byte 0x0c /* DW_CFA_def_cfa */ .uleb128 4 .uleb128 4 .byte 0x88 /* DW_CFA_offset, column 0x8 */ .uleb128 1 .align 4 .LENDCIEDLSI: .long .LENDFDEDLSI-.LSTARTFDEDLSI /* Length FDE */ .LSTARTFDEDLSI: .long .LSTARTFDEDLSI-.LSTARTFRAMEDLSI /* CIE pointer */ .long .LSTART_vsyscall-. /* PC-relative start address */ .long .LEND_vsyscall-.LSTART_vsyscall .uleb128 0 .align 4 .LENDFDEDLSI: .previous /* * Get the common code for the sigreturn entry points. */ #include "sigreturn.S"