1/* $NetBSD: __setjmp14.S,v 1.5 2011/01/15 07:31:12 matt Exp $ */ 2 3#include "SYS.h" 4#include "assym.h" 5 6#if defined(LIBC_SCCS) 7__RCSID("$NetBSD: __setjmp14.S,v 1.5 2011/01/15 07:31:12 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 mr %r6,%r3 22 li %r3,SIG_BLOCK 23 li %r4,0 24 addi %r5,%r6,4*(1+24) # &sigmask 25 _DOSYSCALL(__sigprocmask14) # assume no error XXX 26 mflr %r11 27 mfcr %r12 28 mr %r10,%r1 29 mr %r9,%r2 30 stmw %r8,4(%r6) # save r8-r31 31 li %r3,0 32 blr 33END(__setjmp14) 34 35ENTRY(__longjmp14) 36 lmw %r8,4(%r3) # load r8-r31 37 mr %r6,%r4 38 mtlr %r11 39 mtcr %r12 40 mr %r2,%r9 41 mr %r1,%r10 42 addi %r4,%r3,4*(1+24) # &sigmask 43 li %r3,SIG_SETMASK 44 li %r5,0 45 _DOSYSCALL(__sigprocmask14) # assume no error XXX 46 or. %r3,%r6,%r6 47 bnelr 48 li %r3,1 49 blr 50END(__longjmp14) 51