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Issue 9316071: Dart_PropagateError, take 2. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 10 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, 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_X64) 7 #if defined(TARGET_ARCH_X64)
8 8
9 #include "vm/cpu.h" 9 #include "vm/cpu.h"
10 10
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after
57 : [exception] "m" (exception), 57 : [exception] "m" (exception),
58 [stacktrace] "m" (stacktrace), 58 [stacktrace] "m" (stacktrace),
59 [pc] "m" (program_counter), 59 [pc] "m" (program_counter),
60 [sp] "m" (stack_pointer), 60 [sp] "m" (stack_pointer),
61 [fp] "m" (frame_pointer)); 61 [fp] "m" (frame_pointer));
62 #endif 62 #endif
63 UNREACHABLE(); 63 UNREACHABLE();
64 } 64 }
65 65
66 66
67 void CPU::JumpToUnhandledExceptionHandler( 67 void CPU::JumpToErrorHandler(
68 uword program_counter, 68 uword program_counter,
69 uword stack_pointer, 69 uword stack_pointer,
70 uword frame_pointer, 70 uword frame_pointer,
71 const UnhandledException& unhandled_exception_object) { 71 const Error& error) {
72 // The no_gc StackResource is unwound through the tear down of 72 // The no_gc StackResource is unwound through the tear down of
73 // stack resources below. 73 // stack resources below.
74 NoGCScope no_gc; 74 NoGCScope no_gc;
75 ASSERT(!unhandled_exception_object.IsNull()); 75 ASSERT(!error.IsNull());
76 RawUnhandledException* unhandled_exception = unhandled_exception_object.raw(); 76 RawError* raw_error = error.raw();
77 77
78 // Prepare for unwinding frames by destroying all the stack resources 78 // Prepare for unwinding frames by destroying all the stack resources
79 // in the previous frames. 79 // in the previous frames.
80 Isolate* isolate = Isolate::Current(); 80 Isolate* isolate = Isolate::Current();
81 while (isolate->top_resource() != NULL && 81 while (isolate->top_resource() != NULL &&
82 (reinterpret_cast<uword>(isolate->top_resource()) < stack_pointer)) { 82 (reinterpret_cast<uword>(isolate->top_resource()) < stack_pointer)) {
83 isolate->top_resource()->~StackResource(); 83 isolate->top_resource()->~StackResource();
84 } 84 }
85 85
86 // Set up the unhandled exception object as the return value in RAX 86 // Set up the error object as the return value in RAX and continue
87 // and continue from the invocation stub. 87 // from the invocation stub.
88 #if defined(TARGET_OS_WINDOWS) 88 #if defined(TARGET_OS_WINDOWS)
89 UNIMPLEMENTED(); 89 UNIMPLEMENTED();
90 #else 90 #else
91 asm volatile("mov %[unhandled_exception], %%rax;" 91 asm volatile("mov %[raw_error], %%rax;"
92 "mov %[pc], %%rbx;" 92 "mov %[pc], %%rbx;"
93 "mov %[fp], %%rcx;" 93 "mov %[fp], %%rcx;"
94 "mov %[sp], %%rdi;" 94 "mov %[sp], %%rdi;"
95 "mov %%rcx, %%rbp;" 95 "mov %%rcx, %%rbp;"
96 "mov %%rdi, %%rsp;" 96 "mov %%rdi, %%rsp;"
97 "jmp *%%rbx;" 97 "jmp *%%rbx;"
98 : 98 :
99 : [unhandled_exception] "m" (unhandled_exception), 99 : [raw_error] "m" (raw_error),
100 [pc] "m" (program_counter), 100 [pc] "m" (program_counter),
101 [sp] "m" (stack_pointer), 101 [sp] "m" (stack_pointer),
102 [fp] "m" (frame_pointer)); 102 [fp] "m" (frame_pointer));
103 #endif 103 #endif
104 UNREACHABLE(); 104 UNREACHABLE();
105 } 105 }
106 106
107 107
108 const char* CPU::Id() { 108 const char* CPU::Id() {
109 return "x64"; 109 return "x64";
110 } 110 }
111 111
112 } // namespace dart 112 } // namespace dart
113 113
114 #endif // defined TARGET_ARCH_X64 114 #endif // defined TARGET_ARCH_X64
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