177 lines
4.1 KiB
PHP
177 lines
4.1 KiB
PHP
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struct Error
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flags dd ? ; ERR_#
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message dd ?
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symbol dd ?
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preprocessed_data dd ?
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preprocessed_length dd ?
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next dd ? ; pointer to another Error
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; source SourceContext
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ends
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ERR_CUSTOM = 1
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register_volatile_error:
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; in:
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; edx - 32-bit length followed by string data
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; ebx - data for message formatting (only relevant for non-custom messages that contain % character)
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; out:
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; edx - Error
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; preserves: eax, ebx, ecx, esi, edi
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cmp [next_pass_needed],0
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jne error_ignored
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push eax ebx ecx esi edi
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or [message_volatile],1
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jmp get_error_line
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register_delayed_error:
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; in:
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; edx - error message
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; esi - SourceContext
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; ebx - data for message formatting (only relevant for non-custom messages that contain % character)
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; out:
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; edx - Error
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; preserves: eax, ebx, ecx, esi, edi
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cmp [next_pass_needed],0
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jne error_ignored
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push eax ebx ecx esi edi
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and [message_volatile],0
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and [error_line_start],0
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and [error_line_end],0
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jmp add_error
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register_error:
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; in:
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; edx - error message
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; ebx - data for message formatting (only relevant for non-custom messages that contain % character)
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; out:
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; edx - Error, null when error was not registered
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; preserves: eax, ebx, ecx, esi, edi
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cmp [next_pass_needed],0
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jne error_ignored
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push eax ebx ecx esi edi
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and [message_volatile],0
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get_error_line:
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mov eax,[line_start]
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mov [error_line_start],eax
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mov ecx,[line_end]
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cmp [number_of_line_embeddings],0
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je error_line_end_ok
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mov eax,[line_embeddings]
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mov ecx,[eax+LineEmbedding.previous_end]
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error_line_end_ok:
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mov [error_line_end],ecx
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xor esi,esi
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add_error:
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mov [error_symbol],ebx
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lea ebx,[first_error]
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xor ecx,ecx
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find_last_error:
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mov eax,[ebx]
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test eax,eax
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jz last_error_found
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lea ebx,[eax+Error.next]
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inc ecx
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cmp ecx,[maximum_number_of_errors]
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jb find_last_error
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pop edi esi ecx ebx eax
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xor edx,edx
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retn
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last_error_found:
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cmp [message_volatile],0
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jne prepare_volatile_error
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test esi,esi
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jnz prepare_error
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mov esi,[source_context]
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prepare_error:
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mov ecx,[esi+SourceContext.number_of_entries]
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imul ecx,sizeof.SourceEntry
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add ecx,sizeof.SourceContext
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cmp [esi+ecx-sizeof.SourceEntry+SourceEntry.type],SOURCE_CALM
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jne error_source_context_ready
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mov eax,[calm_instruction_number]
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mov [esi+ecx-sizeof.SourceEntry+SourceEntry.line_number],eax
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and [error_line_start],0
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and [error_line_end],0
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error_source_context_ready:
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add ecx,sizeof.Error
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add ecx,[error_line_end]
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sub ecx,[error_line_start]
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mov edi,edx
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call malloc
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mov [ebx],eax
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mov [eax+Error.message],edi
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mov ecx,[error_symbol]
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mov [eax+Error.symbol],ecx
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xor ecx,ecx
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mov [eax+Error.flags],ecx
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mov [eax+Error.next],ecx
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lea edi,[eax+sizeof.Error]
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push eax
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call clone_source_context
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pop edx
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store_preprocessed_data:
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mov [edx+Error.preprocessed_data],edi
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mov esi,[error_line_start]
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mov ecx,[error_line_end]
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sub ecx,esi
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mov [edx+Error.preprocessed_length],ecx
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rep movsb
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pop edi esi ecx ebx eax
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retn
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error_ignored:
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xor edx,edx
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retn
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prepare_volatile_error:
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mov esi,edx
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mov eax,[source_context]
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mov ecx,[eax+SourceContext.number_of_entries]
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imul ecx,sizeof.SourceEntry
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add ecx,sizeof.SourceContext
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cmp [eax+ecx-sizeof.SourceEntry+SourceEntry.type],SOURCE_CALM
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jne volatile_error_source_context_ready
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mov edx,[calm_instruction_number]
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mov [eax+ecx-sizeof.SourceEntry+SourceEntry.line_number],edx
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and [error_line_start],0
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and [error_line_end],0
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volatile_error_source_context_ready:
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add ecx,sizeof.Error
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add ecx,[error_line_end]
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sub ecx,[error_line_start]
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mov edi,ecx
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add ecx,[esi]
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inc ecx
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call malloc
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add edi,eax
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mov [ebx],eax
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mov edx,eax
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mov [edx+Error.message],edi
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xor eax,eax
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mov [edx+Error.next],eax
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mov [edx+Error.flags],eax
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lodsd
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mov ecx,eax
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rep movsb
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xor al,al
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stosb
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mov esi,[source_context]
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lea edi,[edx+sizeof.Error]
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push edx
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call clone_source_context
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pop edx
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jmp store_preprocessed_data
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discard_errors:
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mov eax,[first_error]
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test eax,eax
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jnz discard_error
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retn
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discard_error:
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add eax,sizeof.Error
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call release_source_context
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sub eax,sizeof.Error
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mov ebx,[eax+Error.next]
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call mfree
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mov eax,ebx
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test eax,eax
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jnz discard_error
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mov [first_error],eax
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retn
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