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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 | 6 |
7 #if defined(TARGET_ARCH_IA32) | 7 #if defined(TARGET_ARCH_IA32) |
8 | 8 |
9 #include "vm/cpu.h" | 9 #include "vm/cpu.h" |
10 | 10 |
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66 : [exception] "m" (exception), | 66 : [exception] "m" (exception), |
67 [stacktrace] "m" (stacktrace), | 67 [stacktrace] "m" (stacktrace), |
68 [pc] "m" (program_counter), | 68 [pc] "m" (program_counter), |
69 [sp] "m" (stack_pointer), | 69 [sp] "m" (stack_pointer), |
70 [fp] "m" (frame_pointer)); | 70 [fp] "m" (frame_pointer)); |
71 #endif | 71 #endif |
72 UNREACHABLE(); | 72 UNREACHABLE(); |
73 } | 73 } |
74 | 74 |
75 | 75 |
76 void CPU::JumpToUnhandledExceptionHandler( | 76 void CPU::JumpToErrorHandler( |
77 uword program_counter, | 77 uword program_counter, |
78 uword stack_pointer, | 78 uword stack_pointer, |
79 uword frame_pointer, | 79 uword frame_pointer, |
80 const UnhandledException& unhandled_exception_object) { | 80 const Error& error) { |
81 // The no_gc StackResource is unwound through the tear down of | 81 // The no_gc StackResource is unwound through the tear down of |
82 // stack resources below. | 82 // stack resources below. |
83 NoGCScope no_gc; | 83 NoGCScope no_gc; |
84 ASSERT(!unhandled_exception_object.IsNull()); | 84 ASSERT(!error.IsNull()); |
85 RawUnhandledException* unhandled_exception = unhandled_exception_object.raw(); | 85 RawError* raw_error = error.raw(); |
86 | 86 |
87 // Prepare for unwinding frames by destroying all the stack resources | 87 // Prepare for unwinding frames by destroying all the stack resources |
88 // in the previous frames. | 88 // in the previous frames. |
89 Isolate* isolate = Isolate::Current(); | 89 Isolate* isolate = Isolate::Current(); |
90 while (isolate->top_resource() != NULL && | 90 while (isolate->top_resource() != NULL && |
91 (reinterpret_cast<uword>(isolate->top_resource()) < stack_pointer)) { | 91 (reinterpret_cast<uword>(isolate->top_resource()) < stack_pointer)) { |
92 isolate->top_resource()->~StackResource(); | 92 isolate->top_resource()->~StackResource(); |
93 } | 93 } |
94 | 94 |
95 // Set up the unhandled exception object as the return value in EAX | 95 // Set up the error object as the return value in EAX and continue |
96 // and continue from the invocation stub. | 96 // from the invocation stub. |
97 #if defined(TARGET_OS_WINDOWS) | 97 #if defined(TARGET_OS_WINDOWS) |
98 __asm { | 98 __asm { |
99 mov eax, unhandled_exception | 99 mov eax, raw_error |
100 mov ebx, program_counter | 100 mov ebx, program_counter |
101 mov ecx, frame_pointer | 101 mov ecx, frame_pointer |
102 mov edi, stack_pointer | 102 mov edi, stack_pointer |
103 mov ebp, ecx | 103 mov ebp, ecx |
104 mov esp, edi | 104 mov esp, edi |
105 jmp ebx | 105 jmp ebx |
106 } | 106 } |
107 #else | 107 #else |
108 asm volatile("mov %[unhandled_exception], %%eax;" | 108 asm volatile("mov %[raw_error], %%eax;" |
109 "mov %[pc], %%ebx;" | 109 "mov %[pc], %%ebx;" |
110 "mov %[fp], %%ecx;" | 110 "mov %[fp], %%ecx;" |
111 "mov %[sp], %%edi;" | 111 "mov %[sp], %%edi;" |
112 "mov %%ecx, %%ebp;" | 112 "mov %%ecx, %%ebp;" |
113 "mov %%edi, %%esp;" | 113 "mov %%edi, %%esp;" |
114 "jmp *%%ebx;" | 114 "jmp *%%ebx;" |
115 : | 115 : |
116 : [unhandled_exception] "m" (unhandled_exception), | 116 : [raw_error] "m" (raw_error), |
117 [pc] "m" (program_counter), | 117 [pc] "m" (program_counter), |
118 [sp] "m" (stack_pointer), | 118 [sp] "m" (stack_pointer), |
119 [fp] "m" (frame_pointer)); | 119 [fp] "m" (frame_pointer)); |
120 #endif | 120 #endif |
121 UNREACHABLE(); | 121 UNREACHABLE(); |
122 } | 122 } |
123 | 123 |
124 | 124 |
125 const char* CPU::Id() { | 125 const char* CPU::Id() { |
126 return "ia32"; | 126 return "ia32"; |
127 } | 127 } |
128 | 128 |
129 } // namespace dart | 129 } // namespace dart |
130 | 130 |
131 #endif // defined TARGET_ARCH_IA32 | 131 #endif // defined TARGET_ARCH_IA32 |
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