src/system/libroot/posix/arch/ppc/siglongjmp.S

   1 /*
   2  * Copyright 2005, Ingo Weinhold <bonefish@cs.tu-berlin.de>. All rights
   3  * reserved. Distributed under the terms of the Haiku License.
   4  */
   5
   6 #include "setjmp_internal.h"
   7
   8 /* int __siglongjmp(jmp_buf buffer, int value) */
   9 FUNCTION(siglongjmp):
  10 FUNCTION(longjmp):
  11 FUNCTION(_longjmp):
  12         // r3: buffer, r4: saveMask
  13
  14         // restore non-volatile general purpose registers
  15         lwz             %r1, JMP_REGS_R1(3)
  16         lwz             %r2, JMP_REGS_R2(3)
  17         lwz             %r13, JMP_REGS_R13(3)
  18         lwz             %r14, JMP_REGS_R14(3)
  19         lwz             %r15, JMP_REGS_R15(3)
  20         lwz             %r16, JMP_REGS_R16(3)
  21         lwz             %r17, JMP_REGS_R17(3)
  22         lwz             %r18, JMP_REGS_R18(3)
  23         lwz             %r19, JMP_REGS_R19(3)
  24         lwz             %r20, JMP_REGS_R20(3)
  25         lwz             %r21, JMP_REGS_R21(3)
  26         lwz             %r22, JMP_REGS_R22(3)
  27         lwz             %r23, JMP_REGS_R23(3)
  28         lwz             %r24, JMP_REGS_R24(3)
  29         lwz             %r25, JMP_REGS_R25(3)
  30         lwz             %r26, JMP_REGS_R26(3)
  31         lwz             %r27, JMP_REGS_R27(3)
  32         lwz             %r28, JMP_REGS_R28(3)
  33         lwz             %r29, JMP_REGS_R29(3)
  34         lwz             %r30, JMP_REGS_R30(3)
  35         lwz             %r31, JMP_REGS_R31(3)
  36
  37         // restore special registers (link, condition)
  38         lwz             %r0, JMP_REGS_LR(3)
  39         mtlr    %r0
  40         lwz             %r0, JMP_REGS_CR(3)
  41         mtcr    %r0
  42
  43         b               __longjmp_return
  44
  45 #pragma weak longjmp=siglongjmp