__setjmp14.S revision 1.1
1 /* $NetBSD: __setjmp14.S,v 1.1 2006/07/07 21:07:35 ross Exp $ */ 2 3 #include <sys/syscall.h> 4 5 #include <machine/asm.h> 6 7 .include "ldstm.S" 8 9 #if defined(LIBC_SCCS) 10 .text 11 .asciz "$NetBSD: __setjmp14.S,v 1.1 2006/07/07 21:07:35 ross Exp $" 12 #endif 13 14 /* 15 * C library -- _setjmp, _longjmp 16 * 17 * longjmp(a,v) 18 * will generate a "return(v?v:1)" from the last call to 19 * setjmp(a) 20 * by restoring registers from the stack. 21 * The previous signal state is restored. 22 */ 23 24 ENTRY(__setjmp14) 25 mr %r6,%r3 26 li %r3,1 # SIG_BLOCK 27 li %r4,0 28 addi %r5,%r6,100 # &sigmask 29 li %r0,SYS___sigprocmask14 30 sc # assume no error XXX 31 mflr %r11 32 mfcr %r12 33 mr %r10,%r1 34 mr %r9,%r2 35 stmd 8, 8(%r6) # save r8-r31 36 li %r3,0 37 blr 38 39 ENTRY(__longjmp14) 40 lmd 8, 8(%r3) # load r8-r31 41 mr %r6,%r4 42 mtlr %r11 43 mtcr %r12 44 mr %r2,%r9 45 mr %r1,%r10 46 addi %r4,%r3,100 # &sigmask 47 li %r3,3 # SIG_SETMASK 48 li %r5,0 49 li %r0,SYS___sigprocmask14 50 sc # assume no error XXX 51 or. %r3,%r6,%r6 52 bnelr 53 li %r3,1 54 blr 55
Indexes created Tue Sep 30 11:09:46 GMT 2025