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setjmp.S

setjmp.S 2.0 KB
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  1. /* setjmp for RISC-V.
    2. 

  2.    Copyright (C) 1996-2026 Free Software Foundation, Inc.
    3. 

  3.    This file is part of the GNU C Library.
    4. 

  4. 

  5.    The GNU C Library is free software; you can redistribute it and/or
    6. 

  6.    modify it under the terms of the GNU Lesser General Public
    7. 

  7.    License as published by the Free Software Foundation; either
    8. 

  8.    version 2.1 of the License, or (at your option) any later version.
    9. 

  9. 

  10.    The GNU C Library is distributed in the hope that it will be useful,
    11. 

  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13. 

  13.    Lesser General Public License for more details.
    14. 

  14. 

  15.    You should have received a copy of the GNU Lesser General Public
    16. 

  16.    License along with the GNU C Library.  If not, see
    17. 

  17.    <https://www.gnu.org/licenses/>.  */
    18. 

  18. 

  19. #include <sysdep.h>
    20. 

  20. #include <sys/asm.h>
    21. 

  21. 

  22. ENTRY (_setjmp)
    23. 

  23.   li	a1, 0
    24. 

  24.   j	HIDDEN_JUMPTARGET (__sigsetjmp)
    25. 

  25. END (_setjmp)
    26. 

  26. ENTRY (setjmp)
    27. 

  27.   li	a1, 1
    28. 

  28.   /* Fallthrough */
    29. 

  29. END (setjmp)
    30. 

  30. ENTRY (__sigsetjmp)
    31. 

  31. 	REG_S ra,  0*SZREG(a0)
    32. 

  32. 	REG_S s0,  1*SZREG(a0)
    33. 

  33. 	REG_S s1,  2*SZREG(a0)
    34. 

  34. 	REG_S s2,  3*SZREG(a0)
    35. 

  35. 	REG_S s3,  4*SZREG(a0)
    36. 

  36. 	REG_S s4,  5*SZREG(a0)
    37. 

  37. 	REG_S s5,  6*SZREG(a0)
    38. 

  38. 	REG_S s6,  7*SZREG(a0)
    39. 

  39. 	REG_S s7,  8*SZREG(a0)
    40. 

  40. 	REG_S s8,  9*SZREG(a0)
    41. 

  41. 	REG_S s9, 10*SZREG(a0)
    42. 

  42. 	REG_S s10,11*SZREG(a0)
    43. 

  43. 	REG_S s11,12*SZREG(a0)
    44. 

  44. 	REG_S sp, 13*SZREG(a0)
    45. 

  45. 

  46. #ifndef __riscv_float_abi_soft
    47. 

  47. 	FREG_S fs0, 14*SZREG+ 0*SZFREG(a0)
    48. 

  48. 	FREG_S fs1, 14*SZREG+ 1*SZFREG(a0)
    49. 

  49. 	FREG_S fs2, 14*SZREG+ 2*SZFREG(a0)
    50. 

  50. 	FREG_S fs3, 14*SZREG+ 3*SZFREG(a0)
    51. 

  51. 	FREG_S fs4, 14*SZREG+ 4*SZFREG(a0)
    52. 

  52. 	FREG_S fs5, 14*SZREG+ 5*SZFREG(a0)
    53. 

  53. 	FREG_S fs6, 14*SZREG+ 6*SZFREG(a0)
    54. 

  54. 	FREG_S fs7, 14*SZREG+ 7*SZFREG(a0)
    55. 

  55. 	FREG_S fs8, 14*SZREG+ 8*SZFREG(a0)
    56. 

  56. 	FREG_S fs9, 14*SZREG+ 9*SZFREG(a0)
    57. 

  57. 	FREG_S fs10,14*SZREG+10*SZFREG(a0)
    58. 

  58. 	FREG_S fs11,14*SZREG+11*SZFREG(a0)
    59. 

  59. #endif
    60. 

  60. 

  61. #if !IS_IN (libc) && IS_IN (rtld)
    62. 

  62.   /* In ld.so we never save the signal mask.  */
    63. 

  63.   li a0, 0
    64. 

  64.   ret
    65. 

  65. #else
    66. 

  66.   /* Make a tail call to __sigjmp_save; it takes the same args.  */
    67. 

  67.   j __sigjmp_save
    68. 

  68. #endif
    69. 

  69. 

  70. 

  71. END (__sigsetjmp)
    72. 

  72. 

  73. hidden_def (__sigsetjmp)
    74. 

  74. weak_alias (_setjmp, __GI__setjmp)
    75.