1/* $NetBSD: __setjmp14.S,v 1.2 2002/07/30 06:07:57 matt Exp $ */ 2 3#include <sys/syscall.h> 4 5#include <machine/asm.h> 6 7#if defined(LIBC_SCCS) 8 .text 9 .asciz "$NetBSD: __setjmp14.S,v 1.2 2002/07/30 06:07:57 matt Exp $" 10#endif 11 12/* 13 * C library -- _setjmp, _longjmp 14 * 15 * longjmp(a,v) 16 * will generate a "return(v?v:1)" from the last call to 17 * setjmp(a) 18 * by restoring registers from the stack. 19 * The previous signal state is restored. 20 */ 21 22ENTRY(__setjmp14) 23 mr %r6,%r3 24 li %r3,1 # SIG_BLOCK 25 li %r4,0 26 addi %r5,%r6,100 # &sigmask 27 li %r0,SYS___sigprocmask14 28 sc # assume no error XXX 29 mflr %r11 30 mfcr %r12 31 mr %r10,%r1 32 mr %r9,%r2 33 stmw %r8,4(%r6) # save r8-r31 34 li %r3,0 35 blr 36 37ENTRY(__longjmp14) 38 lmw %r8,4(%r3) # load r8-r31 39 mr %r6,%r4 40 mtlr %r11 41 mtcr %r12 42 mr %r2,%r9 43 mr %r1,%r10 44 addi %r4,%r3,100 # &sigmask 45 li %r3,3 # SIG_SETMASK 46 li %r5,0 47 li %r0,SYS___sigprocmask14 48 sc # assume no error XXX 49 or. %r3,%r6,%r6 50 bnelr 51 li %r3,1 52 blr 53