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1 /* | |
2 * Copyright 2012 The Native Client Authors. All rights reserved. | |
3 * Use of this source code is governed by a BSD-style license that can | |
4 * be found in the LICENSE file. | |
5 */ | |
6 | |
7 /* | |
8 * NaCl Secure Runtime | |
9 */ | |
10 | |
11 #ifndef __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H__ | |
12 #define __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H__ 1 | |
13 | |
14 #if !defined(__ASSEMBLER__) | |
15 | |
16 #include <stddef.h> | |
17 | |
18 #include "native_client/src/include/nacl_macros.h" | |
19 #include "native_client/src/include/portability.h" | |
20 #include "native_client/src/shared/platform/nacl_check.h" | |
21 | |
22 uint32_t NaClGetStackPtr(void); | |
23 uint32_t NaClGetGlobalPtr(void); | |
24 | |
25 typedef uint32_t nacl_reg_t; | |
26 | |
27 #define NACL_PRIdNACL_REG NACL_PRId32 | |
28 #define NACL_PRIiNACL_REG NACL_PRIi32 | |
29 #define NACL_PRIoNACL_REG NACL_PRIo32 | |
30 #define NACL_PRIuNACL_REG NACL_PRIu32 | |
31 #define NACL_PRIxNACL_REG NACL_PRIx32 | |
32 #define NACL_PRIXNACL_REG NACL_PRIX32 | |
33 | |
34 /* | |
35 * NOTE: This struct needs to be synchronized with NACL_CALLEE_SAVE_LIST | |
36 */ | |
37 | |
38 struct NaClThreadContext { | |
39 nacl_reg_t s0, s1, s2, s3, s4, s5, s6, s7, t8; | |
40 /* 0 4 8 c 10 14 18 1c 20*/ | |
Mark Seaborn
2012/09/20 02:40:42
Nit: add space after '20'
petarj
2012/09/20 15:33:00
Done.
| |
41 | |
42 nacl_reg_t global_ptr, stack_ptr, frame_ptr, prog_ctr; | |
43 /* 24 28 2c 30 */ | |
44 | |
45 /* | |
46 * sys_ret and new_prog_ctr are not a part of the thread's register set, | |
47 * but are needed by NaClSwitch. By including them here, the two | |
48 * use the same interface. | |
49 */ | |
50 uint32_t sysret; | |
51 /* 34 */ | |
52 uint32_t new_prog_ctr; | |
53 /* 38 */ | |
54 uint32_t trusted_stack_ptr; | |
55 /* 3c */ | |
56 uint32_t tls_idx; | |
57 /* 40 */ | |
58 }; | |
59 | |
60 #endif /* !defined(__ASSEMBLER__) */ | |
61 | |
62 #define NACL_THREAD_CONTEXT_OFFSET_S0 0x00 | |
63 #define NACL_THREAD_CONTEXT_OFFSET_S1 0x04 | |
64 #define NACL_THREAD_CONTEXT_OFFSET_S2 0x08 | |
65 #define NACL_THREAD_CONTEXT_OFFSET_S3 0x0c | |
66 #define NACL_THREAD_CONTEXT_OFFSET_S4 0x10 | |
67 #define NACL_THREAD_CONTEXT_OFFSET_S5 0x14 | |
68 #define NACL_THREAD_CONTEXT_OFFSET_S6 0x18 | |
69 #define NACL_THREAD_CONTEXT_OFFSET_S7 0x1c | |
70 #define NACL_THREAD_CONTEXT_OFFSET_T8 0x20 | |
71 #define NACL_THREAD_CONTEXT_OFFSET_GLOBAL_PTR 0x24 | |
72 #define NACL_THREAD_CONTEXT_OFFSET_STACK_PTR 0x28 | |
73 #define NACL_THREAD_CONTEXT_OFFSET_FRAME_PTR 0x2c | |
74 #define NACL_THREAD_CONTEXT_OFFSET_PROG_CTR 0x30 | |
75 #define NACL_THREAD_CONTEXT_OFFSET_SYSRET 0x34 | |
76 #define NACL_THREAD_CONTEXT_OFFSET_NEW_PROG_CTR 0x38 | |
77 #define NACL_THREAD_CONTEXT_OFFSET_TRUSTED_STACK_PTR 0x3c | |
78 #define NACL_THREAD_CONTEXT_OFFSET_TLS_IDX 0x40 | |
79 | |
80 #if !defined(__ASSEMBLER__) | |
81 | |
82 /* | |
83 * This function exists as a function only because compile-time | |
84 * assertions need to be inside a function. This function does not | |
85 * need to be called for the assertions to be checked. | |
86 */ | |
87 static INLINE void NaClThreadContextOffsetCheck(void) { | |
88 int offset = 0; | |
89 | |
90 #define NACL_CHECK_FIELD(offset_name, field) \ | |
91 NACL_COMPILE_TIME_ASSERT(offset_name == \ | |
92 offsetof(struct NaClThreadContext, field)); \ | |
93 CHECK(offset == offset_name); \ | |
94 offset += sizeof(((struct NaClThreadContext *) NULL)->field); | |
95 | |
96 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S0, s0); | |
97 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S1, s1); | |
98 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S2, s2); | |
99 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S3, s3); | |
100 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S4, s4); | |
101 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S5, s5); | |
102 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S6, s6); | |
103 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S7, s7); | |
104 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_T8, t8); | |
105 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_GLOBAL_PTR, global_ptr); | |
106 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_STACK_PTR, stack_ptr); | |
107 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_FRAME_PTR, frame_ptr); | |
108 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_PROG_CTR, prog_ctr); | |
109 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_SYSRET, sysret); | |
110 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_NEW_PROG_CTR, new_prog_ctr); | |
111 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TRUSTED_STACK_PTR, | |
112 trusted_stack_ptr); | |
113 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TLS_IDX, tls_idx); | |
114 CHECK(offset == sizeof(struct NaClThreadContext)); | |
115 | |
116 #undef NACL_CHECK_FIELD | |
117 | |
118 } | |
119 | |
120 #endif /* !defined(__ASSEMBLER__) */ | |
121 | |
122 #endif /* __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H___ */ | |
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