1/* 2Copyright (c) 2003-2006 Hewlett-Packard Development Company, L.P. 3Permission is hereby granted, free of charge, to any person 4obtaining a copy of this software and associated documentation 5files (the "Software"), to deal in the Software without 6restriction, including without limitation the rights to use, 7copy, modify, merge, publish, distribute, sublicense, and/or sell 8copies of the Software, and to permit persons to whom the 9Software is furnished to do so, subject to the following 10conditions: 11 12The above copyright notice and this permission notice shall be 13included in all copies or substantial portions of the Software. 14 15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 17OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 19HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22OTHER DEALINGS IN THE SOFTWARE. 23*/ 24 25#include "uwx_env.h" 26#include "uwx_utable.h" 27#include "uwx_uinfo.h" 28#include "uwx_scoreboard.h" 29#include "uwx_trace.h" 30 31#ifdef UWX_TRACE_ENABLE 32 33void uwx_trace_init(struct uwx_env *env) 34{ 35 char *tstr; 36 37 tstr = getenv("UWX_TRACE"); 38 if (tstr != NULL) { 39 while (*tstr != '\0') { 40 switch (*tstr) { 41 case 'i': env->trace |= UWX_TRACE_UINFO; break; 42 case 't': env->trace |= UWX_TRACE_UTABLE; break; 43 case 'b': env->trace |= UWX_TRACE_SB; break; 44 case 'r': env->trace |= UWX_TRACE_RSTATE; break; 45 case 's': env->trace |= UWX_TRACE_STEP; break; 46 case 'c': env->trace |= UWX_TRACE_CONTEXT; break; 47 case 'C': env->trace |= UWX_TRACE_COPYIN; break; 48 case 'L': env->trace |= UWX_TRACE_LOOKUPIP; break; 49 case '?': 50#ifdef _KERNEL 51 fprintf(stderr, "UWX_TRACE flag `%c' unknown.\n", *tstr); 52#else 53 fprintf(stderr, "UWX_TRACE flags:\n"); 54 fprintf(stderr, " i: unwind info\n"); 55 fprintf(stderr, " t: unwind table searching\n"); 56 fprintf(stderr, " b: scoreboard management\n"); 57 fprintf(stderr, " r: register state vector\n"); 58 fprintf(stderr, " s: step\n"); 59 fprintf(stderr, " c: context\n"); 60 fprintf(stderr, " C: copyin callback\n"); 61 fprintf(stderr, " L: lookup ip callback\n"); 62 exit(1); 63#endif 64 } 65 tstr++; 66 } 67 } 68} 69 70char *uwx_sb_rnames[] = { 71 "RP", "PSP", "PFS", 72 "PREDS", "UNAT", "PRIUNAT", "RNAT", "LC", "FPSR", 73 "GR4", "GR5", "GR6", "GR7", 74 "BR1", "BR2", "BR3", "BR4", "BR5", 75 "FR2", "FR3", "FR4", "FR5", 76 "FR16", "FR17", "FR18", "FR19", 77 "FR20", "FR21", "FR22", "FR23", 78 "FR24", "FR25", "FR26", "FR27", 79 "FR28", "FR29", "FR30", "FR31", 80}; 81 82void uwx_dump_rstate(int regid, uint64_t rstate) 83{ 84 int reg; 85 86 if (rstate == UWX_DISP_NONE) 87 return; 88 fprintf(stderr, " %-7s", uwx_sb_rnames[regid]); 89 switch (UWX_GET_DISP_CODE(rstate)) { 90 case UWX_DISP_NONE: 91 fprintf(stderr, " unchanged\n"); 92 break; 93 case UWX_DISP_SPPLUS(0): 94 fprintf(stderr, " SP + %d\n", (int)rstate & ~0x07); 95 break; 96 case UWX_DISP_SPREL(0): 97 fprintf(stderr, " [SP + %d]\n", (int)rstate & ~0x07); 98 break; 99 case UWX_DISP_PSPREL(0): 100 fprintf(stderr, " [PSP + 16 - %d]\n", (int)rstate & ~0x07); 101 break; 102 case UWX_DISP_REG(0): 103 reg = UWX_GET_DISP_REGID(rstate); 104 if (reg == UWX_REG_AR_PFS) 105 fprintf(stderr, " AR.PFS\n"); 106 else if (reg == UWX_REG_AR_UNAT) 107 fprintf(stderr, " AR.UNAT\n"); 108 else if (reg >= UWX_REG_GR(0) && reg < UWX_REG_GR(128)) 109 fprintf(stderr, " GR%d\n", reg - UWX_REG_GR(0)); 110 else if (reg >= UWX_REG_FR(0) && reg < UWX_REG_FR(128)) 111 fprintf(stderr, " FR%d\n", reg - UWX_REG_FR(0)); 112 else if (reg >= UWX_REG_BR(0) && reg < UWX_REG_BR(8)) 113 fprintf(stderr, " BR%d\n", reg - UWX_REG_BR(0)); 114 else 115 fprintf(stderr, " <reg %d>\n", reg); 116 break; 117 default: 118 fprintf(stderr, " <%08lx>\n", (long)rstate); 119 break; 120 } 121} 122 123void uwx_dump_scoreboard( 124 struct uwx_scoreboard *scoreboard, 125 int nsbreg, 126 struct uwx_rhdr *rhdr, 127 int cur_slot, 128 int ip_slot) 129{ 130 int i; 131 132 if (rhdr->is_prologue) 133 fprintf(stderr, " Prologue region (start = %d, length = %d)\n", 134 (int)cur_slot, (int)rhdr->rlen); 135 else 136 fprintf(stderr, " Body region (start = %d, length = %d, ecount = %d)\n", 137 cur_slot, (int)rhdr->rlen, rhdr->ecount); 138 if (ip_slot < rhdr->rlen) 139 fprintf(stderr, " IP is in this region (offset = %d)\n", ip_slot); 140 for (i = 0; i < nsbreg; i++) 141 uwx_dump_rstate(i, scoreboard->rstate[i]); 142} 143 144void uwx_dump_uinfo_block( 145 struct uwx_utable_entry *uentry, 146 unsigned int ulen) 147{ 148 int i; 149 uint32_t *uinfo = (uint32_t *)(intptr_t)uentry->unwind_info; 150 151 ulen += DWORDSZ; /* Include unwind info header */ 152 if (uentry->unwind_flags & UNWIND_TBL_32BIT) /* and personality routine */ 153 ulen += WORDSZ; 154 else 155 ulen += DWORDSZ; 156 while (ulen >= WORDSZ) { 157 fprintf(stderr, " %08lx: ", (unsigned long)uinfo); 158 for (i = 0; i < 4 * WORDSZ && ulen >= WORDSZ; i += WORDSZ) { 159 fprintf(stderr, " %04x", *uinfo++); 160 ulen -= WORDSZ; 161 } 162 fprintf(stderr, "\n"); 163 } 164} 165 166#endif /* UWX_TRACE_ENABLE */ 167