__setjmp14.S revision 1.1
1 /* $NetBSD: __setjmp14.S,v 1.1 2014/09/19 17:36:25 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 2014/09/19 17:36:25 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 20 ENTRY(__setjmp14) 21 li a1, 1 22 REG_S a1, JB_MAGIC(a0) /* indicate sigmask */ 23 REG_S ra, JB_RA(a0) /* save return address */ 24 REG_S s0, JB_S0(a0) /* save callee saved register */ 25 REG_S s1, JB_S1(a0) /* save callee saved register */ 26 REG_S s2, JB_S2(a0) /* save callee saved register */ 27 REG_S s3, JB_S3(a0) /* save callee saved register */ 28 REG_S s4, JB_S4(a0) /* save callee saved register */ 29 REG_S s5, JB_S5(a0) /* save callee saved register */ 30 REG_S s6, JB_S6(a0) /* save callee saved register */ 31 REG_S s7, JB_S7(a0) /* save callee saved register */ 32 REG_S s8, JB_S8(a0) /* save callee saved register */ 33 REG_S s9, JB_S9(a0) /* save callee saved register */ 34 REG_S s10, JB_S10(a0) /* save callee saved register */ 35 REG_S s11, JB_S11(a0) /* save callee saved register */ 36 REG_S sp, JB_SP(a0) /* save stack pointer */ 37 REG_S tp, JB_TP(a0) /* save thread pointer */ 38 REG_S gp, JB_GP(a0) /* save global pointer */ 39 #ifndef _SOFT_FLOAT 40 frcsr t2 /* get FSCR */ 41 REG_S t2, JB_FCSR(a0) /* save it */ 42 fsd fs0, JB_F0(a0) /* save callee saved register */ 43 fsd fs1, JB_F1(a0) /* save callee saved register */ 44 fsd fs2, JB_F2(a0) /* save callee saved register */ 45 fsd fs3, JB_F3(a0) /* save callee saved register */ 46 fsd fs4, JB_F4(a0) /* save callee saved register */ 47 fsd fs5, JB_F5(a0) /* save callee saved register */ 48 fsd fs6, JB_F6(a0) /* save callee saved register */ 49 fsd fs7, JB_F7(a0) /* save callee saved register */ 50 fsd fs8, JB_F8(a0) /* save callee saved register */ 51 fsd fs9, JB_F9(a0) /* save callee saved register */ 52 fsd fs10, JB_F10(a0) /* save callee saved register */ 53 fsd fs11, JB_F11(a0) /* save callee saved register */ 54 fsd fs12, JB_F12(a0) /* save callee saved register */ 55 fsd fs13, JB_F13(a0) /* save callee saved register */ 56 fsd fs14, JB_F14(a0) /* save callee saved register */ 57 fsd fs15, JB_F15(a0) /* save callee saved register */ 58 #endif 59 60 addi a2, a0, JB_SIGMASK /* &sigmask */ 61 li a1, 0 62 li a0, SIG_BLOCK 63 SYSTRAP(__sigprocmask14) /* assume no error */ 64 li v0, 0 /* success */ /* indicate success */ 65 ret /* error */ /* return */ 66 END(__setjmp14) 67 68 ENTRY(__longjmp14) 69 REG_L ra, JB_RA(a0) /* restore return address */ 70 REG_L s0, JB_S0(a0) /* restore callee saved register */ 71 REG_L s1, JB_S1(a0) /* restore callee saved register */ 72 REG_L s2, JB_S2(a0) /* restore callee saved register */ 73 REG_L s3, JB_S3(a0) /* restore callee saved register */ 74 REG_L s4, JB_S4(a0) /* restore callee saved register */ 75 REG_L s5, JB_S5(a0) /* restore callee saved register */ 76 REG_L s6, JB_S6(a0) /* restore callee saved register */ 77 REG_L s7, JB_S7(a0) /* restore callee saved register */ 78 REG_L s8, JB_S8(a0) /* restore callee saved register */ 79 REG_L s9, JB_S9(a0) /* restore callee saved register */ 80 REG_L s10, JB_S10(a0) /* restore callee saved register */ 81 REG_L s11, JB_S11(a0) /* restore callee saved register */ 82 REG_L sp, JB_SP(a0) /* restore stack pointer */ 83 #REG_L tp, JB_TP(a0) /* restore thread pointer */ 84 REG_L gp, JB_GP(a0) /* restore global pointer */ 85 #ifndef _SOFT_FLOAT 86 REG_L t2, JB_FCSR(a0) /* get it */ 87 fscsr t2 /* restore FSCR */ 88 fld fs0, JB_F0(a0) /* restore callee saved register */ 89 fld fs1, JB_F1(a0) /* restore callee saved register */ 90 fld fs2, JB_F2(a0) /* restore callee saved register */ 91 fld fs3, JB_F3(a0) /* restore callee saved register */ 92 fld fs4, JB_F4(a0) /* restore callee saved register */ 93 fld fs5, JB_F5(a0) /* restore callee saved register */ 94 fld fs6, JB_F6(a0) /* restore callee saved register */ 95 fld fs7, JB_F7(a0) /* restore callee saved register */ 96 fld fs8, JB_F8(a0) /* restore callee saved register */ 97 fld fs9, JB_F9(a0) /* restore callee saved register */ 98 fld fs10, JB_F10(a0) /* restore callee saved register */ 99 fld fs11, JB_F11(a0) /* restore callee saved register */ 100 fld fs12, JB_F12(a0) /* restore callee saved register */ 101 fld fs13, JB_F13(a0) /* restore callee saved register */ 102 fld fs14, JB_F14(a0) /* restore callee saved register */ 103 fld fs15, JB_F15(a0) /* restore callee saved register */ 104 #endif 105 move t1, a1 /* save return value */ 106 li a2, 0 107 addi a1, a0, JB_SIGMASK /* &sigmask */ 108 li a0, SIG_SETMASK 109 SYSTRAP(__sigprocmask14) /* assume no error */ 110 nop /* error */ 111 li v0, 1 /* success */ /* default return value */ 112 beqz t1, 1f /* test return value */ 113 move v0, t1 /* use it if not 0 */ 114 1: ret 115 END(__longjmp14) 116
Indexes created Tue Sep 30 07:10:03 GMT 2025