1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19#include "qemu/osdep.h"
20#include <sys/select.h>
21#include <sys/syscall.h>
22#include <sys/ioccom.h>
23#include <ctype.h>
24
25#include "qemu.h"
26
27#include "os-strace.h"
28
29int do_strace;
30
31
32
33
34
35static void print_sysctl(const struct syscallname *name, abi_long arg1,
36 abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
37 abi_long arg6)
38{
39 uint32_t i;
40 int32_t *namep;
41
42 gemu_log("%s({ ", name->name);
43 namep = lock_user(VERIFY_READ, arg1, sizeof(int32_t) * arg2, 1);
44 if (namep) {
45 int32_t *p = namep;
46
47 for (i = 0; i < (uint32_t)arg2; i++) {
48 gemu_log("%d ", tswap32(*p++));
49 }
50 unlock_user(namep, arg1, 0);
51 }
52 gemu_log("}, %u, 0x" TARGET_ABI_FMT_lx ", 0x" TARGET_ABI_FMT_lx ", 0x"
53 TARGET_ABI_FMT_lx ", 0x" TARGET_ABI_FMT_lx ")",
54 (uint32_t)arg2, arg3, arg4, arg5, arg6);
55}
56
57static void print_execve(const struct syscallname *name, abi_long arg1,
58 abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
59 abi_long arg6)
60{
61 abi_ulong arg_ptr_addr;
62 char *s;
63
64 s = lock_user_string(arg1);
65 if (s == NULL) {
66 return;
67 }
68 gemu_log("%s(\"%s\",{", name->name, s);
69 unlock_user(s, arg1, 0);
70
71 for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
72 abi_ulong *arg_ptr, arg_addr;
73
74 arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
75 if (!arg_ptr) {
76 return;
77 }
78 arg_addr = tswapl(*arg_ptr);
79 unlock_user(arg_ptr, arg_ptr_addr, 0);
80 if (!arg_addr) {
81 break;
82 }
83 if ((s = lock_user_string(arg_addr))) {
84 gemu_log("\"%s\",", s);
85 unlock_user(s, arg_addr, 0);
86 }
87 }
88 gemu_log("NULL})");
89}
90
91static void print_ioctl(const struct syscallname *name,
92 abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4,
93 abi_long arg5, abi_long arg6)
94{
95
96 gemu_log("%s(%d, 0x%0lx { IO%s%s GRP:0x%x('%c') CMD:%d LEN:%d }, 0x"
97 TARGET_ABI_FMT_lx ", ...)",
98 name->name,
99 (int)arg1,
100 (unsigned long)arg2,
101 arg2 & IOC_OUT ? "R" : "",
102 arg2 & IOC_IN ? "W" : "",
103 (unsigned)IOCGROUP(arg2),
104 isprint(IOCGROUP(arg2)) ? (char)IOCGROUP(arg2) : '?',
105 (int)arg2 & 0xFF,
106 (int)IOCPARM_LEN(arg2),
107 arg3);
108}
109
110static void print_sysarch(const struct syscallname *name, abi_long arg1,
111 abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
112 abi_long arg6)
113{
114
115 do_os_print_sysarch(name, arg1, arg2, arg3, arg4, arg5, arg6);
116}
117
118
119
120
121
122static void print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
123{
124 if (ret == -1) {
125 gemu_log(" = -1 errno=%d (%s)\n", errno, strerror(errno));
126 } else {
127 gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
128 }
129}
130
131#if 0
132static void
133print_syscall_ret_raw(struct syscallname *name, abi_long ret)
134{
135 gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
136}
137#endif
138
139
140
141
142
143static const struct syscallname freebsd_scnames[] = {
144#include "freebsd/strace.list"
145};
146static const struct syscallname netbsd_scnames[] = {
147#include "netbsd/strace.list"
148};
149static const struct syscallname openbsd_scnames[] = {
150#include "openbsd/strace.list"
151};
152
153static void print_syscall(int num, const struct syscallname *scnames,
154 unsigned int nscnames, abi_long arg1, abi_long arg2, abi_long arg3,
155 abi_long arg4, abi_long arg5, abi_long arg6)
156{
157 unsigned int i;
158 const char *format="%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ","
159 TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ","
160 TARGET_ABI_FMT_ld ")";
161
162 gemu_log("%d ", getpid() );
163
164 for (i = 0; i < nscnames; i++) {
165 if (scnames[i].nr == num) {
166 if (scnames[i].call != NULL) {
167 scnames[i].call(&scnames[i], arg1, arg2, arg3, arg4, arg5,
168 arg6);
169 } else {
170
171
172 if (scnames[i].format != NULL) {
173 format = scnames[i].format;
174 }
175 gemu_log(format, scnames[i].name, arg1, arg2, arg3, arg4, arg5,
176 arg6);
177 }
178 return;
179 }
180 }
181 gemu_log("Unknown syscall %d\n", num);
182}
183
184static void print_syscall_ret(int num, abi_long ret,
185 const struct syscallname *scnames, unsigned int nscnames)
186{
187 unsigned int i;
188
189 for (i = 0; i < nscnames; i++) {
190 if (scnames[i].nr == num) {
191 if (scnames[i].result != NULL) {
192 scnames[i].result(&scnames[i], ret);
193 } else {
194 if (ret < 0) {
195 gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret,
196 strerror(-ret));
197 } else {
198 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
199 }
200 }
201 break;
202 }
203 }
204}
205
206
207
208
209void print_freebsd_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3,
210 abi_long arg4, abi_long arg5, abi_long arg6)
211{
212
213 print_syscall(num, freebsd_scnames, ARRAY_SIZE(freebsd_scnames), arg1, arg2,
214 arg3, arg4, arg5, arg6);
215}
216
217void print_freebsd_syscall_ret(int num, abi_long ret)
218{
219
220 print_syscall_ret(num, ret, freebsd_scnames, ARRAY_SIZE(freebsd_scnames));
221}
222
223void print_netbsd_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3,
224 abi_long arg4, abi_long arg5, abi_long arg6)
225{
226
227 print_syscall(num, netbsd_scnames, ARRAY_SIZE(netbsd_scnames),
228 arg1, arg2, arg3, arg4, arg5, arg6);
229}
230
231void print_netbsd_syscall_ret(int num, abi_long ret)
232{
233
234 print_syscall_ret(num, ret, netbsd_scnames, ARRAY_SIZE(netbsd_scnames));
235}
236
237void print_openbsd_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3,
238 abi_long arg4, abi_long arg5, abi_long arg6)
239{
240
241 print_syscall(num, openbsd_scnames, ARRAY_SIZE(openbsd_scnames), arg1, arg2,
242 arg3, arg4, arg5, arg6);
243}
244
245void print_openbsd_syscall_ret(int num, abi_long ret)
246{
247
248 print_syscall_ret(num, ret, openbsd_scnames, ARRAY_SIZE(openbsd_scnames));
249}
250