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pipe.S

pipe.S 795 B
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  1. /* pipe system call for Linux/MIPS */
    2. 

  2. /*
    3. 

  3.  * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
    4. 

  4.  *
    5. 

  5.  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
    6. 

  6.  */
    7. 

  7. 

  8. /*see uClibc's sh/pipe.c and glibc-2.2.4's mips/pipe.S */
    9. 

  9. 

  10. #include <features.h>
    11. 

  11. #include <sys/asm.h>
    12. 

  12. #include <asm/unistd.h>
    13. 

  13. #include <sys/regdef.h>
    14. 

  14. 

  15. 	.globl	pipe
    16. 

  16. 	.ent	pipe, 0
    17. 

  17. 	.type pipe,@function
    18. 

  18. pipe:
    19. 

  19. #ifdef __PIC__
    20. 

  20. 	SETUP_GP
    21. 

  21. #endif
    22. 

  22. 	li	v0,__NR_pipe
    23. 

  23. 	syscall
    24. 

  24. 	bnez	a3, 1f
    25. 

  25. 	sw	v0, 0(a0)
    26. 

  26. 	sw	v1, 4(a0)
    27. 

  27. 	li	v0, 0
    28. 

  28. 	j	ra
    29. 

  29. 1:
    30. 

  30. 	/* uClibc change -- start */
    31. 

  31. 	move		a0,v0		/* Pass return val to C function. */
    32. 

  32. 	/* uClibc change -- stop */
    33. 

  33. 

  34. #ifdef __PIC__
    35. 

  35. 	SETUP_GP64(v0, pipe)
    36. 

  36. 	PTR_LA	t9, __syscall_error
    37. 

  37. 	RESTORE_GP64
    38. 

  38. 	jr	t9
    39. 

  39. #else
    40. 

  40. 	j	__syscall_error
    41. 

  41. #endif
    42. 

  42. 1:
    43. 

  43. 	.end	pipe
    44. 

  44. 	.size	pipe,.-pipe
    45. 

  45. libc_hidden_def(pipe)
    46.