__setjmp14.S revision 1.1
1 1.1 ross /* $NetBSD: __setjmp14.S,v 1.1 2006/07/07 21:07:35 ross Exp $ */ 2 1.1 ross 3 1.1 ross #include <sys/syscall.h> 4 1.1 ross 5 1.1 ross #include <machine/asm.h> 6 1.1 ross 7 1.1 ross .include "ldstm.S" 8 1.1 ross 9 1.1 ross #if defined(LIBC_SCCS) 10 1.1 ross .text 11 1.1 ross .asciz "$NetBSD: __setjmp14.S,v 1.1 2006/07/07 21:07:35 ross Exp $" 12 1.1 ross #endif 13 1.1 ross 14 1.1 ross /* 15 1.1 ross * C library -- _setjmp, _longjmp 16 1.1 ross * 17 1.1 ross * longjmp(a,v) 18 1.1 ross * will generate a "return(v?v:1)" from the last call to 19 1.1 ross * setjmp(a) 20 1.1 ross * by restoring registers from the stack. 21 1.1 ross * The previous signal state is restored. 22 1.1 ross */ 23 1.1 ross 24 1.1 ross ENTRY(__setjmp14) 25 1.1 ross mr %r6,%r3 26 1.1 ross li %r3,1 # SIG_BLOCK 27 1.1 ross li %r4,0 28 1.1 ross addi %r5,%r6,100 # &sigmask 29 1.1 ross li %r0,SYS___sigprocmask14 30 1.1 ross sc # assume no error XXX 31 1.1 ross mflr %r11 32 1.1 ross mfcr %r12 33 1.1 ross mr %r10,%r1 34 1.1 ross mr %r9,%r2 35 1.1 ross stmd 8, 8(%r6) # save r8-r31 36 1.1 ross li %r3,0 37 1.1 ross blr 38 1.1 ross 39 1.1 ross ENTRY(__longjmp14) 40 1.1 ross lmd 8, 8(%r3) # load r8-r31 41 1.1 ross mr %r6,%r4 42 1.1 ross mtlr %r11 43 1.1 ross mtcr %r12 44 1.1 ross mr %r2,%r9 45 1.1 ross mr %r1,%r10 46 1.1 ross addi %r4,%r3,100 # &sigmask 47 1.1 ross li %r3,3 # SIG_SETMASK 48 1.1 ross li %r5,0 49 1.1 ross li %r0,SYS___sigprocmask14 50 1.1 ross sc # assume no error XXX 51 1.1 ross or. %r3,%r6,%r6 52 1.1 ross bnelr 53 1.1 ross li %r3,1 54 1.1 ross blr 55
Indexes created Tue Sep 30 07:10:03 GMT 2025