1 2#include <asm/linkage.h> 3 4/* save stack context for non-local goto 5 * int kgdb_setjmp(long *buf) 6 */ 7 8ENTRY(_kgdb_setjmp) 9 [--SP] = p0; /* Save P0 */ 10 p0 = r0; 11 r0 = [SP++]; /* Load P0 into R0 */ 12 13 [p0 + 0x00] = r0; /* GP address registers */ 14 [p0 + 0x04] = p1; 15 [p0 + 0x08] = p2; 16 [p0 + 0x0C] = p3; 17 [p0 + 0x10] = p4; 18 [p0 + 0x14] = p5; 19 [p0 + 0x18] = FP; /* frame pointer */ 20 [p0 + 0x1C] = SP; /* stack pointer */ 21 22 [p0 + 0x20] = p0; /* data regs */ 23 [p0 + 0x24] = r1; 24 [p0 + 0x28] = r2; 25 [p0 + 0x2C] = r3; 26 [p0 + 0x30] = r4; 27 [p0 + 0x34] = r5; 28 [p0 + 0x38] = r6; 29 [p0 + 0x3C] = r7; 30 31 r0 = ASTAT; [p0 + 0x40] = r0; 32 33 /* loop counters */ 34 r0 = LC0; [p0 + 0x44] = r0; 35 r0 = LC1; [p0 + 0x48] = r0; 36 37 /* Accumulator */ 38 r0 = A0.w; [p0 + 0x4C] = r0; 39 r0.l = A0.x; [p0 + 0x50] = r0; 40 r0 = A1.w; [p0 + 0x54] = r0; 41 r0.l = A1.x; [p0 + 0x58] = r0; 42 43 /* index registers */ 44 r0 = i0; [p0 + 0x5C] = r0; 45 r0 = i1; [p0 + 0x60] = r0; 46 r0 = i2; [p0 + 0x64] = r0; 47 r0 = i3; [p0 + 0x68] = r0; 48 49 /* modifier registers */ 50 r0 = m0; [p0 + 0x6C] = r0; 51 r0 = m1; [p0 + 0x70] = r0; 52 r0 = m2; [p0 + 0x74] = r0; 53 r0 = m3; [p0 + 0x78] = r0; 54 55 /* length registers */ 56 r0 = l0; [p0 + 0x7C] = r0; 57 r0 = l1; [p0 + 0x80] = r0; 58 r0 = l2; [p0 + 0x84] = r0; 59 r0 = l3; [p0 + 0x88] = r0; 60 61 /* base registers */ 62 r0 = b0; [p0 + 0x8C] = r0; 63 r0 = b1; [p0 + 0x90] = r0; 64 r0 = b2; [p0 + 0x94] = r0; 65 r0 = b3; [p0 + 0x98] = r0; 66 67 /* store return address */ 68 r0 = RETS; [p0 + 0x9C] = r0; 69 70 R0 = 0; 71 RTS; 72ENDPROC(_kgdb_setjmp) 73 74/* 75 * non-local jump to a saved stack context 76 * longjmp(long *buf, int val) 77 */ 78 79ENTRY(_kgdb_longjmp) 80 p0 = r0; 81 r0 = [p0 + 0x00]; 82 [--sp] = r0; 83 84 /* GP address registers - skip p0 for now*/ 85 p1 = [p0 + 0x04]; 86 p2 = [p0 + 0x08]; 87 p3 = [p0 + 0x0C]; 88 p4 = [p0 + 0x10]; 89 p5 = [p0 + 0x14]; 90 /* frame pointer */ 91 fp = [p0 + 0x18]; 92 /* stack pointer */ 93 r0 = [sp++]; 94 sp = [p0 + 0x1C]; 95 [--sp] = r0; 96 [--sp] = r1; 97 98 /* data regs */ 99 r0 = [p0 + 0x20]; 100 r1 = [p0 + 0x24]; 101 r2 = [p0 + 0x28]; 102 r3 = [p0 + 0x2C]; 103 r4 = [p0 + 0x30]; 104 r5 = [p0 + 0x34]; 105 r6 = [p0 + 0x38]; 106 r7 = [p0 + 0x3C]; 107 108 r0 = [p0 + 0x40]; ASTAT = r0; 109 110 /* loop counters */ 111 r0 = [p0 + 0x44]; LC0 = r0; 112 r0 = [p0 + 0x48]; LC1 = r0; 113 114 /* Accumulator */ 115 r0 = [p0 + 0x4C]; A0.w = r0; 116 r0 = [p0 + 0x50]; A0.x = r0; 117 r0 = [p0 + 0x54]; A1.w = r0; 118 r0 = [p0 + 0x58]; A1.x = r0; 119 120 /* index registers */ 121 r0 = [p0 + 0x5C]; i0 = r0; 122 r0 = [p0 + 0x60]; i1 = r0; 123 r0 = [p0 + 0x64]; i2 = r0; 124 r0 = [p0 + 0x68]; i3 = r0; 125 126 /* modifier registers */ 127 r0 = [p0 + 0x6C]; m0 = r0; 128 r0 = [p0 + 0x70]; m1 = r0; 129 r0 = [p0 + 0x74]; m2 = r0; 130 r0 = [p0 + 0x78]; m3 = r0; 131 132 /* length registers */ 133 r0 = [p0 + 0x7C]; l0 = r0; 134 r0 = [p0 + 0x80]; l1 = r0; 135 r0 = [p0 + 0x84]; l2 = r0; 136 r0 = [p0 + 0x88]; l3 = r0; 137 138 /* base registers */ 139 r0 = [p0 + 0x8C]; b0 = r0; 140 r0 = [p0 + 0x90]; b1 = r0; 141 r0 = [p0 + 0x94]; b2 = r0; 142 r0 = [p0 + 0x98]; b3 = r0; 143 144 /* store return address */ 145 r0 = [p0 + 0x9C]; RETS = r0; 146 147 /* fixup R0 & P0 */ 148 r0 = [sp++]; 149 p0 = [sp++]; 150 CC = R0 == 0; 151 IF !CC JUMP .Lfinished; 152 R0 = 1; 153.Lfinished: 154 RTS; 155ENDPROC(_kgdb_longjmp) 156