1/* $NetBSD: __setjmp14.S,v 1.1 2014/09/03 19:34:25 matt Exp $ */ 2 3#include "SYS.h" 4#include "assym.h" 5 6#if defined(LIBC_SCCS) 7__RCSID("$NetBSD: __setjmp14.S,v 1.1 2014/09/03 19:34:25 matt Exp $") 8#endif 9 10/* 11 * C library -- _setjmp, _longjmp 12 * 13 * longjmp(a,v) 14 * will generate a "return(v?v:1)" from the last call to 15 * setjmp(a) 16 * by restoring registers from the stack. 17 * The previous signal state is restored. 18 */ 19 20ENTRY(__setjmp14) 21 l.sw JB_PC(r3), lr /* save return address */ 22 l.sw JB_LR(r3), lr /* save return address */ 23 l.sw JB_SP(r3), r1 /* save stack pointer */ 24 l.sw JB_FP(r3), r2 /* save frame pointer */ 25 l.sw JB_R10(r3), r10 /* save callee saved register */ 26 l.sw JB_R14(r3), r14 /* save callee saved register */ 27 l.sw JB_R16(r3), r16 /* save callee saved register */ 28 l.sw JB_R18(r3), r18 /* save callee saved register */ 29 l.sw JB_R20(r3), r20 /* save callee saved register */ 30 l.sw JB_R22(r3), r22 /* save callee saved register */ 31 l.sw JB_R24(r3), r24 /* save callee saved register */ 32 l.sw JB_R26(r3), r26 /* save callee saved register */ 33 l.sw JB_R28(r3), r28 /* save callee saved register */ 34 l.sw JB_R30(r3), r30 /* save callee saved register */ 35 l.addi r4, r0, 1 36 l.sw JB_MAGIC(r3), r4 /* note we saved sigmask */ 37 l.addi r5, r3, JB_SIGMASK # &sigmask 38 l.xor r4, r4, r4 39 l.addi r3, r0, SIG_BLOCK 40 _DOSYSCALL(__sigprocmask14) # assume no error XXX 41 l.xor r11, r11, r11 42 l.jr lr 43 l.nop 44END(__setjmp14) 45 46ENTRY(__longjmp14) 47 l.lwz lr, JB_LR(r3) /* get return address */ 48 l.lwz r1, JB_SP(r3) /* get stack pointer */ 49 l.lwz r2, JB_FP(r3) /* get frame pointer */ 50 l.lwz r10, JB_R10(r3) /* get callee saved register */ 51 l.lwz r14, JB_R14(r3) /* get callee saved register */ 52 l.lwz r16, JB_R16(r3) /* get callee saved register */ 53 l.lwz r18, JB_R18(r3) /* get callee saved register */ 54 l.lwz r20, JB_R20(r3) /* get callee saved register */ 55 l.lwz r22, JB_R22(r3) /* get callee saved register */ 56 l.lwz r24, JB_R24(r3) /* get callee saved register */ 57 l.lwz r26, JB_R26(r3) /* get callee saved register */ 58 l.lwz r28, JB_R28(r3) /* get callee saved register */ 59 l.lwz r30, JB_R30(r3) /* get callee saved register */ 60 l.ori r11, r4, 0 61 l.xor r5, r5, r5 62 l.addi r4, r3, JB_SIGMASK # &sigmask 63 l.addi r3, r0, SIG_SETMASK 64 _DOSYSCALL(__sigprocmask14) # assume no error XXX 65 l.addi r6, r0, 1 66 l.sfeqi r11, 0 67 l.cmov r11, r6, r11 68 l.jr lr 69 l.nop 70END(__longjmp14) 71