1 #include "defs.h"
2
3 #if defined I386 || defined X86_64 || defined X32
4
5 # include <asm/ldt.h>
6
7 void
print_user_desc(struct tcb * tcp,long addr)8 print_user_desc(struct tcb *tcp, long addr)
9 {
10 struct user_desc desc;
11
12 if (umove(tcp, addr, &desc) < 0) {
13 tprintf("%lx", addr);
14 return;
15 }
16
17 if (!verbose(tcp)) {
18 tprintf("{entry_number:%d, ...}", desc.entry_number);
19 return;
20 }
21
22 tprintf("{entry_number:%d, "
23 "base_addr:%#08x, "
24 "limit:%d, "
25 "seg_32bit:%d, "
26 "contents:%d, "
27 "read_exec_only:%d, "
28 "limit_in_pages:%d, "
29 "seg_not_present:%d, "
30 "useable:%d}",
31 desc.entry_number,
32 desc.base_addr,
33 desc.limit,
34 desc.seg_32bit,
35 desc.contents,
36 desc.read_exec_only,
37 desc.limit_in_pages,
38 desc.seg_not_present,
39 desc.useable);
40 }
41
SYS_FUNC(modify_ldt)42 SYS_FUNC(modify_ldt)
43 {
44 if (entering(tcp)) {
45 tprintf("%ld, ", tcp->u_arg[0]);
46 if (tcp->u_arg[1] == 0
47 || tcp->u_arg[2] != sizeof(struct user_desc)) {
48 tprintf("%lx", tcp->u_arg[1]);
49 } else {
50 print_user_desc(tcp, tcp->u_arg[1]);
51 }
52 tprintf(", %lu", tcp->u_arg[2]);
53 }
54 return 0;
55 }
56
SYS_FUNC(set_thread_area)57 SYS_FUNC(set_thread_area)
58 {
59 if (entering(tcp)) {
60 print_user_desc(tcp, tcp->u_arg[0]);
61 } else {
62 struct user_desc desc;
63
64 if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &desc) < 0) {
65 /* returned entry_number is not available */
66 } else {
67 static char outstr[32];
68
69 sprintf(outstr, "entry_number:%d", desc.entry_number);
70 tcp->auxstr = outstr;
71 return RVAL_STR;
72 }
73 }
74 return 0;
75 }
76
SYS_FUNC(get_thread_area)77 SYS_FUNC(get_thread_area)
78 {
79 if (exiting(tcp)) {
80 if (syserror(tcp))
81 tprintf("%lx", tcp->u_arg[0]);
82 else
83 print_user_desc(tcp, tcp->u_arg[0]);
84 }
85 return 0;
86 }
87
88 #endif /* I386 || X86_64 || X32 */
89
90 #if defined(M68K) || defined(MIPS)
SYS_FUNC(set_thread_area)91 SYS_FUNC(set_thread_area)
92 {
93 if (entering(tcp))
94 tprintf("%#lx", tcp->u_arg[0]);
95 return 0;
96
97 }
98 #endif
99
100 #if defined(M68K)
SYS_FUNC(get_thread_area)101 SYS_FUNC(get_thread_area)
102 {
103 return RVAL_HEX;
104 }
105 #endif
106