[experimental-ims] ea1df10 Compress this eyesore using CPP
Poul-Henning Kamp
phk at FreeBSD.org
Thu Dec 18 10:27:50 CET 2014
commit ea1df10930ec15629c386dc692cb6c08d3d82392
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date: Tue Jun 26 09:24:11 2012 +0000
Compress this eyesore using CPP
diff --git a/lib/libvarnishcompat/execinfo.c b/lib/libvarnishcompat/execinfo.c
index b1a17cf..113ae32 100644
--- a/lib/libvarnishcompat/execinfo.c
+++ b/lib/libvarnishcompat/execinfo.c
@@ -126,278 +126,37 @@ backtrace_symbols(void *const *buffer, int size)
return (rval);
}
+/* Binary expansion */
+#define L1(x) L0(x); L0(x + 0x01);
+#define L2(x) L1(x); L1(x + 0x02);
+#define L3(x) L2(x); L2(x + 0x04);
+#define L4(x) L3(x); L3(x + 0x08);
+#define L5(x) L4(x); L4(x + 0x10);
+#define L6(x) L5(x); L5(x + 0x20);
+#define L7(x) L6(x); L6(x + 0x40);
+
static void *
getreturnaddr(int level)
{
- switch(level) {
- case 0: return __builtin_return_address(1);
- case 1: return __builtin_return_address(2);
- case 2: return __builtin_return_address(3);
- case 3: return __builtin_return_address(4);
- case 4: return __builtin_return_address(5);
- case 5: return __builtin_return_address(6);
- case 6: return __builtin_return_address(7);
- case 7: return __builtin_return_address(8);
- case 8: return __builtin_return_address(9);
- case 9: return __builtin_return_address(10);
- case 10: return __builtin_return_address(11);
- case 11: return __builtin_return_address(12);
- case 12: return __builtin_return_address(13);
- case 13: return __builtin_return_address(14);
- case 14: return __builtin_return_address(15);
- case 15: return __builtin_return_address(16);
- case 16: return __builtin_return_address(17);
- case 17: return __builtin_return_address(18);
- case 18: return __builtin_return_address(19);
- case 19: return __builtin_return_address(20);
- case 20: return __builtin_return_address(21);
- case 21: return __builtin_return_address(22);
- case 22: return __builtin_return_address(23);
- case 23: return __builtin_return_address(24);
- case 24: return __builtin_return_address(25);
- case 25: return __builtin_return_address(26);
- case 26: return __builtin_return_address(27);
- case 27: return __builtin_return_address(28);
- case 28: return __builtin_return_address(29);
- case 29: return __builtin_return_address(30);
- case 30: return __builtin_return_address(31);
- case 31: return __builtin_return_address(32);
- case 32: return __builtin_return_address(33);
- case 33: return __builtin_return_address(34);
- case 34: return __builtin_return_address(35);
- case 35: return __builtin_return_address(36);
- case 36: return __builtin_return_address(37);
- case 37: return __builtin_return_address(38);
- case 38: return __builtin_return_address(39);
- case 39: return __builtin_return_address(40);
- case 40: return __builtin_return_address(41);
- case 41: return __builtin_return_address(42);
- case 42: return __builtin_return_address(43);
- case 43: return __builtin_return_address(44);
- case 44: return __builtin_return_address(45);
- case 45: return __builtin_return_address(46);
- case 46: return __builtin_return_address(47);
- case 47: return __builtin_return_address(48);
- case 48: return __builtin_return_address(49);
- case 49: return __builtin_return_address(50);
- case 50: return __builtin_return_address(51);
- case 51: return __builtin_return_address(52);
- case 52: return __builtin_return_address(53);
- case 53: return __builtin_return_address(54);
- case 54: return __builtin_return_address(55);
- case 55: return __builtin_return_address(56);
- case 56: return __builtin_return_address(57);
- case 57: return __builtin_return_address(58);
- case 58: return __builtin_return_address(59);
- case 59: return __builtin_return_address(60);
- case 60: return __builtin_return_address(61);
- case 61: return __builtin_return_address(62);
- case 62: return __builtin_return_address(63);
- case 63: return __builtin_return_address(64);
- case 64: return __builtin_return_address(65);
- case 65: return __builtin_return_address(66);
- case 66: return __builtin_return_address(67);
- case 67: return __builtin_return_address(68);
- case 68: return __builtin_return_address(69);
- case 69: return __builtin_return_address(70);
- case 70: return __builtin_return_address(71);
- case 71: return __builtin_return_address(72);
- case 72: return __builtin_return_address(73);
- case 73: return __builtin_return_address(74);
- case 74: return __builtin_return_address(75);
- case 75: return __builtin_return_address(76);
- case 76: return __builtin_return_address(77);
- case 77: return __builtin_return_address(78);
- case 78: return __builtin_return_address(79);
- case 79: return __builtin_return_address(80);
- case 80: return __builtin_return_address(81);
- case 81: return __builtin_return_address(82);
- case 82: return __builtin_return_address(83);
- case 83: return __builtin_return_address(84);
- case 84: return __builtin_return_address(85);
- case 85: return __builtin_return_address(86);
- case 86: return __builtin_return_address(87);
- case 87: return __builtin_return_address(88);
- case 88: return __builtin_return_address(89);
- case 89: return __builtin_return_address(90);
- case 90: return __builtin_return_address(91);
- case 91: return __builtin_return_address(92);
- case 92: return __builtin_return_address(93);
- case 93: return __builtin_return_address(94);
- case 94: return __builtin_return_address(95);
- case 95: return __builtin_return_address(96);
- case 96: return __builtin_return_address(97);
- case 97: return __builtin_return_address(98);
- case 98: return __builtin_return_address(99);
- case 99: return __builtin_return_address(100);
- case 100: return __builtin_return_address(101);
- case 101: return __builtin_return_address(102);
- case 102: return __builtin_return_address(103);
- case 103: return __builtin_return_address(104);
- case 104: return __builtin_return_address(105);
- case 105: return __builtin_return_address(106);
- case 106: return __builtin_return_address(107);
- case 107: return __builtin_return_address(108);
- case 108: return __builtin_return_address(109);
- case 109: return __builtin_return_address(110);
- case 110: return __builtin_return_address(111);
- case 111: return __builtin_return_address(112);
- case 112: return __builtin_return_address(113);
- case 113: return __builtin_return_address(114);
- case 114: return __builtin_return_address(115);
- case 115: return __builtin_return_address(116);
- case 116: return __builtin_return_address(117);
- case 117: return __builtin_return_address(118);
- case 118: return __builtin_return_address(119);
- case 119: return __builtin_return_address(120);
- case 120: return __builtin_return_address(121);
- case 121: return __builtin_return_address(122);
- case 122: return __builtin_return_address(123);
- case 123: return __builtin_return_address(124);
- case 124: return __builtin_return_address(125);
- case 125: return __builtin_return_address(126);
- case 126: return __builtin_return_address(127);
- case 127: return __builtin_return_address(128);
- default: return NULL;
- }
+ switch(level) {
+#define L0(x) case x: return __builtin_return_address(x + 1);
+ L7(0)
+#undef L0
+ default: return NULL;
+ }
}
static void *
getframeaddr(int level)
{
- switch(level) {
- case 0: return __builtin_frame_address(1);
- case 1: return __builtin_frame_address(2);
- case 2: return __builtin_frame_address(3);
- case 3: return __builtin_frame_address(4);
- case 4: return __builtin_frame_address(5);
- case 5: return __builtin_frame_address(6);
- case 6: return __builtin_frame_address(7);
- case 7: return __builtin_frame_address(8);
- case 8: return __builtin_frame_address(9);
- case 9: return __builtin_frame_address(10);
- case 10: return __builtin_frame_address(11);
- case 11: return __builtin_frame_address(12);
- case 12: return __builtin_frame_address(13);
- case 13: return __builtin_frame_address(14);
- case 14: return __builtin_frame_address(15);
- case 15: return __builtin_frame_address(16);
- case 16: return __builtin_frame_address(17);
- case 17: return __builtin_frame_address(18);
- case 18: return __builtin_frame_address(19);
- case 19: return __builtin_frame_address(20);
- case 20: return __builtin_frame_address(21);
- case 21: return __builtin_frame_address(22);
- case 22: return __builtin_frame_address(23);
- case 23: return __builtin_frame_address(24);
- case 24: return __builtin_frame_address(25);
- case 25: return __builtin_frame_address(26);
- case 26: return __builtin_frame_address(27);
- case 27: return __builtin_frame_address(28);
- case 28: return __builtin_frame_address(29);
- case 29: return __builtin_frame_address(30);
- case 30: return __builtin_frame_address(31);
- case 31: return __builtin_frame_address(32);
- case 32: return __builtin_frame_address(33);
- case 33: return __builtin_frame_address(34);
- case 34: return __builtin_frame_address(35);
- case 35: return __builtin_frame_address(36);
- case 36: return __builtin_frame_address(37);
- case 37: return __builtin_frame_address(38);
- case 38: return __builtin_frame_address(39);
- case 39: return __builtin_frame_address(40);
- case 40: return __builtin_frame_address(41);
- case 41: return __builtin_frame_address(42);
- case 42: return __builtin_frame_address(43);
- case 43: return __builtin_frame_address(44);
- case 44: return __builtin_frame_address(45);
- case 45: return __builtin_frame_address(46);
- case 46: return __builtin_frame_address(47);
- case 47: return __builtin_frame_address(48);
- case 48: return __builtin_frame_address(49);
- case 49: return __builtin_frame_address(50);
- case 50: return __builtin_frame_address(51);
- case 51: return __builtin_frame_address(52);
- case 52: return __builtin_frame_address(53);
- case 53: return __builtin_frame_address(54);
- case 54: return __builtin_frame_address(55);
- case 55: return __builtin_frame_address(56);
- case 56: return __builtin_frame_address(57);
- case 57: return __builtin_frame_address(58);
- case 58: return __builtin_frame_address(59);
- case 59: return __builtin_frame_address(60);
- case 60: return __builtin_frame_address(61);
- case 61: return __builtin_frame_address(62);
- case 62: return __builtin_frame_address(63);
- case 63: return __builtin_frame_address(64);
- case 64: return __builtin_frame_address(65);
- case 65: return __builtin_frame_address(66);
- case 66: return __builtin_frame_address(67);
- case 67: return __builtin_frame_address(68);
- case 68: return __builtin_frame_address(69);
- case 69: return __builtin_frame_address(70);
- case 70: return __builtin_frame_address(71);
- case 71: return __builtin_frame_address(72);
- case 72: return __builtin_frame_address(73);
- case 73: return __builtin_frame_address(74);
- case 74: return __builtin_frame_address(75);
- case 75: return __builtin_frame_address(76);
- case 76: return __builtin_frame_address(77);
- case 77: return __builtin_frame_address(78);
- case 78: return __builtin_frame_address(79);
- case 79: return __builtin_frame_address(80);
- case 80: return __builtin_frame_address(81);
- case 81: return __builtin_frame_address(82);
- case 82: return __builtin_frame_address(83);
- case 83: return __builtin_frame_address(84);
- case 84: return __builtin_frame_address(85);
- case 85: return __builtin_frame_address(86);
- case 86: return __builtin_frame_address(87);
- case 87: return __builtin_frame_address(88);
- case 88: return __builtin_frame_address(89);
- case 89: return __builtin_frame_address(90);
- case 90: return __builtin_frame_address(91);
- case 91: return __builtin_frame_address(92);
- case 92: return __builtin_frame_address(93);
- case 93: return __builtin_frame_address(94);
- case 94: return __builtin_frame_address(95);
- case 95: return __builtin_frame_address(96);
- case 96: return __builtin_frame_address(97);
- case 97: return __builtin_frame_address(98);
- case 98: return __builtin_frame_address(99);
- case 99: return __builtin_frame_address(100);
- case 100: return __builtin_frame_address(101);
- case 101: return __builtin_frame_address(102);
- case 102: return __builtin_frame_address(103);
- case 103: return __builtin_frame_address(104);
- case 104: return __builtin_frame_address(105);
- case 105: return __builtin_frame_address(106);
- case 106: return __builtin_frame_address(107);
- case 107: return __builtin_frame_address(108);
- case 108: return __builtin_frame_address(109);
- case 109: return __builtin_frame_address(110);
- case 110: return __builtin_frame_address(111);
- case 111: return __builtin_frame_address(112);
- case 112: return __builtin_frame_address(113);
- case 113: return __builtin_frame_address(114);
- case 114: return __builtin_frame_address(115);
- case 115: return __builtin_frame_address(116);
- case 116: return __builtin_frame_address(117);
- case 117: return __builtin_frame_address(118);
- case 118: return __builtin_frame_address(119);
- case 119: return __builtin_frame_address(120);
- case 120: return __builtin_frame_address(121);
- case 121: return __builtin_frame_address(122);
- case 122: return __builtin_frame_address(123);
- case 123: return __builtin_frame_address(124);
- case 124: return __builtin_frame_address(125);
- case 125: return __builtin_frame_address(126);
- case 126: return __builtin_frame_address(127);
- case 127: return __builtin_frame_address(128);
- default: return NULL;
- }
+ switch(level) {
+#define L0(x) case x: return __builtin_frame_address(x + 1);
+ L7(0)
+#undef L0
+ default: return NULL;
+ }
}
#else
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