1 /*
2 Copyright (c) 2003-2006 Hewlett-Packard Development Company, L.P.
3 Permission is hereby granted, free of charge, to any person
4 obtaining a copy of this software and associated documentation
5 files (the "Software"), to deal in the Software without
6 restriction, including without limitation the rights to use,
7 copy, modify, merge, publish, distribute, sublicense, and/or sell
8 copies of the Software, and to permit persons to whom the
9 Software is furnished to do so, subject to the following
10 conditions:
11
12 The above copyright notice and this permission notice shall be
13 included in all copies or substantial portions of the Software.
14
15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
17 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 OTHER 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
uwx_trace_init(struct uwx_env * env)33 void 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
70 char *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
uwx_dump_rstate(int regid,uint64_t rstate)82 void 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
uwx_dump_scoreboard(struct uwx_scoreboard * scoreboard,int nsbreg,struct uwx_rhdr * rhdr,int cur_slot,int ip_slot)123 void 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
uwx_dump_uinfo_block(struct uwx_utable_entry * uentry,unsigned int ulen)144 void 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