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1.1 root 1: /*
2: * db/i386/i386db0.c
3: * A debugger.
4: * i386 global variables and tables.
5: */
6:
7: #include <sys/ptrace.h>
8: #include "i386db.h"
9:
10: /*
11: * Global variables.
12: */
13: BIN bin = { TRAP }; /* Breakpoint instruction */
14: int NDP_flag; /* NDP instructions are usable */
15: ADDR_T sys_add; /* Address of op after syscall */
16: int sys_flag; /* Executing a system call */
17: BIN sys_in; /* Instruction after sys call */
18: UREG ureg; /* Child program registers */
19:
20: /*
21: * Format strings table.
22: */
23: char *formtab[4][4] ={
24: "%4d", /* "bd" */
25: "%3u", /* "bu" */
26: "%04o", /* "bo" */
27: "%02X", /* "bx" */
28: "%6d", /* "wd" */
29: "%5u", /* "wu" */
30: "%07o", /* "wo" */
31: "%04X", /* "wx" */
32: "%10ld", /* "ld" */
33: "%11lu", /* "lu" */
34: "%012lo", /* "lo" */
35: "%08lX", /* "lx" */
36: "%8ld", /* "vd" */
37: "%8lu", /* "vu" */
38: "%09lo", /* "vo" */
39: "%06lX" /* "vx" */
40: };
41:
42: /*
43: * Register name table.
44: * Map register names to pseudo-offsets in user segment; cf. <sys/ptrace.h>.
45: * This is used to obtain offsets for ptrace() calls to read/write registers.
46: * The register name lookup code in i386db1.c/is_reg() also recognizes
47: * "xy" as the word register equivalent of dword register "exy".
48: * Code using this table does not reference the copy of the child registers
49: * kept in ureg.
50: * The order in the table corresponds to the order of printing for :r.
51: * Other PTRACE_* entries could be recognized but currently are not.
52: */
53: REGNAME reg_name[NREGS] = {
54: { RF_16, "cs", PTRACE_CS },
55: { RF_1632, "eip", PTRACE_EIP },
56: { RF_16, "ss", PTRACE_SS },
57: { RF_1632, "fw", PTRACE_EFL },
58: { RF_16, "ds", PTRACE_DS },
59: { RF_16, "es", PTRACE_ES },
60: { RF_16, "fs", PTRACE_FS },
61: { RF_16, "gs", PTRACE_GS },
62: { RF_1632, "eax", PTRACE_EAX },
63: { RF_1632, "ebx", PTRACE_EBX },
64: { RF_1632, "ecx", PTRACE_ECX },
65: { RF_1632, "edx", PTRACE_EDX },
66: { RF_1632, "esp", PTRACE_UESP }, /* UESP */
67: { RF_1632, "ebp", PTRACE_EBP },
68: { RF_1632, "edi", PTRACE_EDI },
69: { RF_1632, "esi", PTRACE_ESI },
70: { RF_NDP, "st0", PTRACE_FP_ST0 },
71: { RF_NDP, "st1", PTRACE_FP_ST1 },
72: { RF_NDP, "st2", PTRACE_FP_ST2 },
73: { RF_NDP, "st3", PTRACE_FP_ST3 },
74: { RF_NDP, "st4", PTRACE_FP_ST4 },
75: { RF_NDP, "st5", PTRACE_FP_ST5 },
76: { RF_NDP, "st6", PTRACE_FP_ST6 },
77: { RF_NDP, "st7", PTRACE_FP_ST7 }
78: };
79:
80: #if 0
81: /*
82: * Table of system calls.
83: */
84: char *sysitab[NMICALL] ={
85: NULL,
86: "exit",
87: "fork",
88: "read",
89: "write",
90: "open",
91: "close",
92: "wait",
93: "creat",
94: "link",
95: "unlink",
96: "exece",
97: "chdir",
98: NULL,
99: "mknod",
100: "chmod",
101: "chown",
102: "brk",
103: "stat",
104: "lseek",
105: "getpid",
106: "mount",
107: "umount",
108: "setuid",
109: "getuid",
110: "stime",
111: "ptrace",
112: "alarm",
113: "fstat",
114: "pause",
115: "utime",
116: NULL,
117: NULL,
118: "access",
119: "nice",
120: "ftime",
121: "sync",
122: "kill",
123: NULL,
124: NULL,
125: NULL,
126: "dup",
127: "pipe",
128: "times",
129: "profil",
130: "unique",
131: "setgid",
132: "getgid",
133: "signal",
134: NULL,
135: NULL,
136: "acct",
137: NULL,
138: NULL,
139: "ioctl",
140: NULL,
141: "getegid",
142: "geteuid",
143: NULL,
144: NULL,
145: "umask",
146: "chroot",
147: "setpgrp",
148: "getpgrp",
149: "sload",
150: "suload",
151: "fcntl",
152: "poll",
153: "msgctl",
154: "msgget",
155: "msgrcv",
156: "msgsnd",
157: "alarm2",
158: "tick"
159: };
160: #endif
161:
162: /* end of db/i386/i386db0.c */
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