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kernel
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vsyscall
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vsyscall-trapa.S

vsyscall-trapa.S 1.1 KB
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  1. 	.text
    2. 

  2. 	.globl __kernel_vsyscall
    3. 

  3. 	.type __kernel_vsyscall,@function
    4. 

  4. __kernel_vsyscall:
    5. 

  5. .LSTART_vsyscall:
    6. 

  6. 	/* XXX: We'll have to do something here once we opt to use the vDSO
    7. 

  7. 	 * page for something other than the signal trampoline.. as well as
    8. 

  8. 	 * fill out .eh_frame -- PFM. */
    9. 

  9. .LEND_vsyscall:
    10. 

  10. 	.size __kernel_vsyscall,.-.LSTART_vsyscall
    11. 

  11. 	.previous
    12. 

  12. 

  13. 	.section .eh_frame,"a",@progbits
    14. 

  14. .LCIE:
    15. 

  15. 	.ualong	.LCIE_end - .LCIE_start
    16. 

  16. .LCIE_start:
    17. 

  17. 	.ualong	0		/* CIE ID */
    18. 

  18. 	.byte	0x1		/* Version number */
    19. 

  19. 	.string	"zRS"		/* NUL-terminated augmentation string */
    20. 

  20. 	.uleb128 0x1		/* Code alignment factor */
    21. 

  21. 	.sleb128 -4		/* Data alignment factor */
    22. 

  22. 	.byte	0x11		/* Return address register column */
    23. 

  23. 				/* Augmentation length and data (none) */
    24. 

  24. 	.byte	0xc		/* DW_CFA_def_cfa */
    25. 

  25. 	.uleb128 0xf		/* r15 */
    26. 

  26. 	.uleb128 0x0		/* offset 0 */
    27. 

  27. 

  28. 	.align 2
    29. 

  29. .LCIE_end:
    30. 

  30. 

  31. 	.ualong	.LFDE_end-.LFDE_start	/* Length FDE */
    32. 

  32. .LFDE_start:
    33. 

  33. 	.ualong	.LCIE			/* CIE pointer */
    34. 

  34. 	.ualong	.LSTART_vsyscall-.	/* start address */
    35. 

  35. 	.ualong	.LEND_vsyscall-.LSTART_vsyscall
    36. 

  36. 	.uleb128 0
    37. 

  37. 	.align 2
    38. 

  38. .LFDE_end:
    39. 

  39. 	.previous
    40. 

  40. 

  41. /* Get the common code for the sigreturn entry points */
    42. 

  42. #include "vsyscall-sigreturn.S"
    43.