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1 /* | 1 /* |
2 * Copyright 2012 The Native Client Authors. All rights reserved. | 2 * Copyright (c) 2012 The Native Client Authors. All rights reserved. |
3 * Use of this source code is governed by a BSD-style license that can | 3 * Use of this source code is governed by a BSD-style license that can be |
4 * be found in the LICENSE file. | 4 * found in the LICENSE file. |
5 */ | 5 */ |
6 | 6 |
7 /* | 7 /* |
8 * NaCl Secure Runtime | 8 * NaCl Secure Runtime |
9 */ | 9 */ |
10 | 10 |
11 #ifndef __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H__ | 11 #ifndef __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H__ |
12 #define __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H__ 1 | 12 #define __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H__ 1 |
13 | 13 |
14 #if !defined(__ASSEMBLER__) | 14 #if !defined(__ASSEMBLER__) |
15 | 15 |
16 #include <stddef.h> | 16 #include <stddef.h> |
17 | 17 |
18 #include "native_client/src/include/nacl_macros.h" | 18 #include "native_client/src/include/nacl_macros.h" |
19 #include "native_client/src/include/portability.h" | 19 #include "native_client/src/include/portability.h" |
20 #include "native_client/src/shared/platform/nacl_check.h" | 20 #include "native_client/src/shared/platform/nacl_check.h" |
21 | 21 |
22 uint32_t NaClGetStackPtr(void); | 22 uint32_t NaClGetStackPtr(void); |
23 uint32_t NaClGetGlobalPtr(void); | |
24 | 23 |
25 typedef uint32_t nacl_reg_t; | 24 typedef uint32_t nacl_reg_t; |
26 | 25 |
27 #define NACL_PRIdNACL_REG NACL_PRId32 | 26 #define NACL_PRIdNACL_REG NACL_PRId32 |
28 #define NACL_PRIiNACL_REG NACL_PRIi32 | 27 #define NACL_PRIiNACL_REG NACL_PRIi32 |
29 #define NACL_PRIoNACL_REG NACL_PRIo32 | 28 #define NACL_PRIoNACL_REG NACL_PRIo32 |
30 #define NACL_PRIuNACL_REG NACL_PRIu32 | 29 #define NACL_PRIuNACL_REG NACL_PRIu32 |
31 #define NACL_PRIxNACL_REG NACL_PRIx32 | 30 #define NACL_PRIxNACL_REG NACL_PRIx32 |
32 #define NACL_PRIXNACL_REG NACL_PRIX32 | 31 #define NACL_PRIXNACL_REG NACL_PRIX32 |
33 | 32 |
34 /* | 33 /* |
35 * NOTE: This struct needs to be synchronized with NACL_CALLEE_SAVE_LIST | 34 * NOTE: This struct needs to be synchronized with NACL_CALLEE_SAVE_LIST |
36 */ | 35 */ |
37 | 36 |
38 struct NaClThreadContext { | 37 struct NaClThreadContext { |
39 nacl_reg_t s0, s1, s2, s3, s4, s5, s6, s7, t8; | 38 nacl_reg_t s0, s1, s2, s3, s4, s5, s6, s7, t8; |
40 /* 0 4 8 c 10 14 18 1c 20 */ | 39 /* 0 4 8 c 10 14 18 1c 20 */ |
41 | 40 |
42 nacl_reg_t global_ptr, stack_ptr, frame_ptr, prog_ctr; | 41 nacl_reg_t stack_ptr, frame_ptr, prog_ctr; |
43 /* 24 28 2c 30 */ | 42 /* 24 28 2c */ |
44 | 43 |
45 /* | 44 /* |
46 * sys_ret and new_prog_ctr are not a part of the thread's register set, | 45 * 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 | 46 * but are needed by NaClSwitch. By including them here, the two |
48 * use the same interface. | 47 * use the same interface. |
49 */ | 48 */ |
50 uint32_t sysret; | 49 uint32_t sysret; |
| 50 /* 30 */ |
| 51 uint32_t new_prog_ctr; |
51 /* 34 */ | 52 /* 34 */ |
52 uint32_t new_prog_ctr; | 53 uint32_t trusted_stack_ptr; |
53 /* 38 */ | 54 /* 38 */ |
54 uint32_t trusted_stack_ptr; | 55 uint32_t tls_idx; |
55 /* 3c */ | 56 /* 3c */ |
56 uint32_t tls_idx; | 57 uint32_t tls_value2; |
57 /* 40 */ | 58 /* 40 */ |
58 uint32_t tls_value2; | |
59 /* 44 */ | |
60 }; | 59 }; |
61 | 60 |
62 #endif /* !defined(__ASSEMBLER__) */ | 61 #endif /* !defined(__ASSEMBLER__) */ |
63 | 62 |
64 #define NACL_THREAD_CONTEXT_OFFSET_S0 0x00 | 63 #define NACL_THREAD_CONTEXT_OFFSET_S0 0x00 |
65 #define NACL_THREAD_CONTEXT_OFFSET_S1 0x04 | 64 #define NACL_THREAD_CONTEXT_OFFSET_S1 0x04 |
66 #define NACL_THREAD_CONTEXT_OFFSET_S2 0x08 | 65 #define NACL_THREAD_CONTEXT_OFFSET_S2 0x08 |
67 #define NACL_THREAD_CONTEXT_OFFSET_S3 0x0c | 66 #define NACL_THREAD_CONTEXT_OFFSET_S3 0x0c |
68 #define NACL_THREAD_CONTEXT_OFFSET_S4 0x10 | 67 #define NACL_THREAD_CONTEXT_OFFSET_S4 0x10 |
69 #define NACL_THREAD_CONTEXT_OFFSET_S5 0x14 | 68 #define NACL_THREAD_CONTEXT_OFFSET_S5 0x14 |
70 #define NACL_THREAD_CONTEXT_OFFSET_S6 0x18 | 69 #define NACL_THREAD_CONTEXT_OFFSET_S6 0x18 |
71 #define NACL_THREAD_CONTEXT_OFFSET_S7 0x1c | 70 #define NACL_THREAD_CONTEXT_OFFSET_S7 0x1c |
72 #define NACL_THREAD_CONTEXT_OFFSET_T8 0x20 | 71 #define NACL_THREAD_CONTEXT_OFFSET_T8 0x20 |
73 #define NACL_THREAD_CONTEXT_OFFSET_GLOBAL_PTR 0x24 | 72 #define NACL_THREAD_CONTEXT_OFFSET_STACK_PTR 0x24 |
74 #define NACL_THREAD_CONTEXT_OFFSET_STACK_PTR 0x28 | 73 #define NACL_THREAD_CONTEXT_OFFSET_FRAME_PTR 0x28 |
75 #define NACL_THREAD_CONTEXT_OFFSET_FRAME_PTR 0x2c | 74 #define NACL_THREAD_CONTEXT_OFFSET_PROG_CTR 0x2c |
76 #define NACL_THREAD_CONTEXT_OFFSET_PROG_CTR 0x30 | 75 #define NACL_THREAD_CONTEXT_OFFSET_SYSRET 0x30 |
77 #define NACL_THREAD_CONTEXT_OFFSET_SYSRET 0x34 | 76 #define NACL_THREAD_CONTEXT_OFFSET_NEW_PROG_CTR 0x34 |
78 #define NACL_THREAD_CONTEXT_OFFSET_NEW_PROG_CTR 0x38 | 77 #define NACL_THREAD_CONTEXT_OFFSET_TRUSTED_STACK_PTR 0x38 |
79 #define NACL_THREAD_CONTEXT_OFFSET_TRUSTED_STACK_PTR 0x3c | 78 #define NACL_THREAD_CONTEXT_OFFSET_TLS_IDX 0x3c |
80 #define NACL_THREAD_CONTEXT_OFFSET_TLS_IDX 0x40 | 79 #define NACL_THREAD_CONTEXT_OFFSET_TLS_VALUE2 0x40 |
81 #define NACL_THREAD_CONTEXT_OFFSET_TLS_VALUE2 0x44 | |
82 | 80 |
83 #if !defined(__ASSEMBLER__) | 81 #if !defined(__ASSEMBLER__) |
84 | 82 |
85 /* | 83 /* |
86 * This function exists as a function only because compile-time | 84 * This function exists as a function only because compile-time |
87 * assertions need to be inside a function. This function does not | 85 * assertions need to be inside a function. This function does not |
88 * need to be called for the assertions to be checked. | 86 * need to be called for the assertions to be checked. |
89 */ | 87 */ |
90 static INLINE void NaClThreadContextOffsetCheck(void) { | 88 static INLINE void NaClThreadContextOffsetCheck(void) { |
91 int offset = 0; | 89 int offset = 0; |
92 | 90 |
93 #define NACL_CHECK_FIELD(offset_name, field) \ | 91 #define NACL_CHECK_FIELD(offset_name, field) \ |
94 NACL_COMPILE_TIME_ASSERT(offset_name == \ | 92 NACL_COMPILE_TIME_ASSERT(offset_name == \ |
95 offsetof(struct NaClThreadContext, field)); \ | 93 offsetof(struct NaClThreadContext, field)); \ |
96 CHECK(offset == offset_name); \ | 94 CHECK(offset == offset_name); \ |
97 offset += sizeof(((struct NaClThreadContext *) NULL)->field); | 95 offset += sizeof(((struct NaClThreadContext *) NULL)->field); |
98 | 96 |
99 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S0, s0); | 97 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S0, s0); |
100 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S1, s1); | 98 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S1, s1); |
101 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S2, s2); | 99 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S2, s2); |
102 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S3, s3); | 100 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S3, s3); |
103 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S4, s4); | 101 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S4, s4); |
104 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S5, s5); | 102 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S5, s5); |
105 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S6, s6); | 103 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S6, s6); |
106 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S7, s7); | 104 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_S7, s7); |
107 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_T8, t8); | 105 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_T8, t8); |
108 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_GLOBAL_PTR, global_ptr); | |
109 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_STACK_PTR, stack_ptr); | 106 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_STACK_PTR, stack_ptr); |
110 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_FRAME_PTR, frame_ptr); | 107 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_FRAME_PTR, frame_ptr); |
111 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_PROG_CTR, prog_ctr); | 108 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_PROG_CTR, prog_ctr); |
112 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_SYSRET, sysret); | 109 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_SYSRET, sysret); |
113 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_NEW_PROG_CTR, new_prog_ctr); | 110 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_NEW_PROG_CTR, new_prog_ctr); |
114 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TRUSTED_STACK_PTR, | 111 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TRUSTED_STACK_PTR, |
115 trusted_stack_ptr); | 112 trusted_stack_ptr); |
116 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TLS_IDX, tls_idx); | 113 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TLS_IDX, tls_idx); |
117 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TLS_VALUE2, tls_value2); | 114 NACL_CHECK_FIELD(NACL_THREAD_CONTEXT_OFFSET_TLS_VALUE2, tls_value2); |
118 CHECK(offset == sizeof(struct NaClThreadContext)); | 115 CHECK(offset == sizeof(struct NaClThreadContext)); |
119 | 116 |
120 #undef NACL_CHECK_FIELD | 117 #undef NACL_CHECK_FIELD |
121 | |
122 } | 118 } |
123 | 119 |
124 #endif /* !defined(__ASSEMBLER__) */ | 120 #endif /* !defined(__ASSEMBLER__) */ |
125 | 121 |
126 #endif /* __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H___ */ | 122 #endif /* __NATIVE_CLIENT_SERVICE_RUNTIME_ARCH_MIPS_SEL_RT_H___ */ |
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