cpu: Move icount_extra field from CPU_COMMON to CPUState
[qemu.git] / include / exec / softmmu-semi.h
1 /*
2 * Helper routines to provide target memory access for semihosting
3 * syscalls in system emulation mode.
4 *
5 * Copyright (c) 2007 CodeSourcery.
6 *
7 * This code is licensed under the GPL
8 */
9 #ifndef SOFTMMU_SEMI_H
10 #define SOFTMMU_SEMI_H 1
11
12 static inline uint32_t softmmu_tget32(CPUArchState *env, uint32_t addr)
13 {
14 uint32_t val;
15
16 cpu_memory_rw_debug(ENV_GET_CPU(env), addr, (uint8_t *)&val, 4, 0);
17 return tswap32(val);
18 }
19 static inline uint32_t softmmu_tget8(CPUArchState *env, uint32_t addr)
20 {
21 uint8_t val;
22
23 cpu_memory_rw_debug(ENV_GET_CPU(env), addr, &val, 1, 0);
24 return val;
25 }
26
27 #define get_user_u32(arg, p) ({ arg = softmmu_tget32(env, p) ; 0; })
28 #define get_user_u8(arg, p) ({ arg = softmmu_tget8(env, p) ; 0; })
29 #define get_user_ual(arg, p) get_user_u32(arg, p)
30
31 static inline void softmmu_tput32(CPUArchState *env, uint32_t addr, uint32_t val)
32 {
33 val = tswap32(val);
34 cpu_memory_rw_debug(ENV_GET_CPU(env), addr, (uint8_t *)&val, 4, 1);
35 }
36 #define put_user_u32(arg, p) ({ softmmu_tput32(env, p, arg) ; 0; })
37 #define put_user_ual(arg, p) put_user_u32(arg, p)
38
39 static void *softmmu_lock_user(CPUArchState *env, uint32_t addr, uint32_t len,
40 int copy)
41 {
42 uint8_t *p;
43 /* TODO: Make this something that isn't fixed size. */
44 p = malloc(len);
45 if (p && copy) {
46 cpu_memory_rw_debug(ENV_GET_CPU(env), addr, p, len, 0);
47 }
48 return p;
49 }
50 #define lock_user(type, p, len, copy) softmmu_lock_user(env, p, len, copy)
51 static char *softmmu_lock_user_string(CPUArchState *env, uint32_t addr)
52 {
53 char *p;
54 char *s;
55 uint8_t c;
56 /* TODO: Make this something that isn't fixed size. */
57 s = p = malloc(1024);
58 if (!s) {
59 return NULL;
60 }
61 do {
62 cpu_memory_rw_debug(ENV_GET_CPU(env), addr, &c, 1, 0);
63 addr++;
64 *(p++) = c;
65 } while (c);
66 return s;
67 }
68 #define lock_user_string(p) softmmu_lock_user_string(env, p)
69 static void softmmu_unlock_user(CPUArchState *env, void *p, target_ulong addr,
70 target_ulong len)
71 {
72 if (len) {
73 cpu_memory_rw_debug(ENV_GET_CPU(env), addr, p, len, 1);
74 }
75 free(p);
76 }
77 #define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len)
78
79 #endif