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![Justin Miller](/assets/img/avatar_default.png)
- Add context structure and definitions, NEON128 structure, runtime function entry, dispatcher context, scope table All definitions are based on the latest SDK for arm64. [SDK] Use _TARGET_PE64 in the pefixup [GENINC] Add AA64 identifier for ARM64 PE binaries CORE-17518
229 lines
5.3 KiB
C
229 lines
5.3 KiB
C
/*
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* Generates assembly definitions from the target headers.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#define IMAGE_FILE_MACHINE_I386 0x014c
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#define IMAGE_FILE_MACHINE_AMD64 0x8664
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#define IMAGE_FILE_MACHINE_ARMNT 0x01c4
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#define IMAGE_FILE_MACHINE_ARM64 0xaa64
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#ifdef _MSC_VER
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#define PRIx64 "I64x"
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#else
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#include <inttypes.h>
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#define _stricmp strcasecmp
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#endif
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typedef struct
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{
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char Type;
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char Name[55];
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uint64_t Value;
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} ASMGENDATA;
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#define TYPE_END 0
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#define TYPE_RAW 1
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#define TYPE_CONSTANT 2
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#define TYPE_HEADER 3
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int main(int argc, char* argv[])
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{
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FILE *input, *output;
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ASMGENDATA data;
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int i, result = -1;
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int ms_format = 0;
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char header[20];
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uint32_t e_lfanew, signature;
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uint16_t Machine, NumberOfSections, SizeOfOptionalHeader;
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typedef struct
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{
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char Name[8];
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uint32_t VirtualSize;
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uint32_t VirtualAddress;
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uint32_t RawSize;
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uint32_t RawAddress;
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uint32_t RelocAddress;
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uint32_t LineNumbers;
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uint16_t RelocationsNumber;
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uint16_t LineNumbersNumber;
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uint32_t Characteristics;
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} SECTION;
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SECTION section;
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if (argc >= 4 && _stricmp(argv[3], "-ms") == 0) ms_format = 1;
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/* Open the input file */
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input = fopen(argv[1], "rb");
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if (!input)
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{
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fprintf(stderr, "Could not open input file '%s'\n", argv[1]);
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return -1;
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}
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/* Open the output file */
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output = fopen(argv[2], "w");
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if (!output)
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{
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fclose(input);
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fprintf(stderr, "Could not open output file '%s'\n", argv[2]);
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return -1;
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}
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/* Read the DOS header */
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if (fread(&header, 1, 2, input) != 2)
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{
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fprintf(stderr, "Error reading header.\n");
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goto quit;
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}
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if (header[0] != 0x4d || header[1] != 0x5a)
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{
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fprintf(stderr, "Not a PE file.\n");
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goto quit;
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}
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fseek(input, 0x3C, SEEK_SET);
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if (fread(&e_lfanew, 1, 4, input) != 4)
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{
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fprintf(stderr, "Could not read e_lfanew.\n");
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goto quit;
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}
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fseek(input, e_lfanew, SEEK_SET);
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if (fread(&signature, 1, 4, input) != 4)
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{
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fprintf(stderr, "Could not read signature.\n");
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goto quit;
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}
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/* Verify the PE signature */
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if (signature != 0x4550)
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{
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fprintf(stderr, "Invalid signature: 0x%x.\n", signature);
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goto quit;
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}
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/* Read Machine */
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fseek(input, e_lfanew + 4, SEEK_SET);
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if (fread(&Machine, 1, 2, input) != 2)
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{
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fprintf(stderr, "Could not read ExportDirectoryRVA.\n");
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goto quit;
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}
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if ((Machine != IMAGE_FILE_MACHINE_I386) &&
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(Machine != IMAGE_FILE_MACHINE_AMD64) &&
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(Machine != IMAGE_FILE_MACHINE_ARMNT) &&
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(Machine != IMAGE_FILE_MACHINE_ARM64))
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{
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fprintf(stderr, "Invalid Machine: 0x%x.\n", Machine);
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goto quit;
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}
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/* Read NumberOfSections */
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if (fread(&NumberOfSections, 1, 2, input) != 2)
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{
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fprintf(stderr, "Could not read NumberOfSections.\n");
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goto quit;
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}
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fseek(input, e_lfanew + 0x14, SEEK_SET);
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if (fread(&SizeOfOptionalHeader, 1, 2, input) != 2)
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{
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fprintf(stderr, "Could not read SizeOfOptionalHeader.\n");
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goto quit;
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}
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/* Read the section table */
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fseek(input, e_lfanew + 0x18 + SizeOfOptionalHeader, SEEK_SET);
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/* Search for the .asmdef section */
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for (i = 0; i < NumberOfSections; i++)
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{
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if (fread(§ion, 1, sizeof(SECTION), input) != sizeof(SECTION))
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{
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fprintf(stderr, "Could not read section.\n");
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goto quit;
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}
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if (strcmp(section.Name, ".asmdef") == 0)
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{
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break;
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}
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}
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if (i == NumberOfSections)
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{
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fprintf(stderr, "Could not find section.\n");
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goto quit;
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}
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/* Read the section table */
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fseek(input, section.RawAddress, SEEK_SET);
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while (1)
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{
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/* Read one entry */
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if (fread(&data, 1, sizeof(data), input) != sizeof(data))
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{
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fprintf(stderr, "Error reading input file.\n");
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goto quit;
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}
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switch(data.Type)
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{
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case TYPE_END:
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break;
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case TYPE_RAW:
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fprintf(output, "%s\n", data.Name);
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continue;
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case TYPE_CONSTANT:
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if (ms_format)
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{
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if (Machine == IMAGE_FILE_MACHINE_ARMNT)
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{
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fprintf(output, "%s equ 0x%"PRIx64"\n", data.Name, data.Value);
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}
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else
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{
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fprintf(output, "%s equ 0%"PRIx64"h\n", data.Name, data.Value);
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}
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}
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else
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{
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fprintf(output, "%s = 0x%"PRIx64"\n", data.Name, data.Value);
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}
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continue;
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case TYPE_HEADER:
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if (ms_format)
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{
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fprintf(output, "\n; %s\n", data.Name);
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}
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else
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{
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fprintf(output, "\n/* %s */\n", data.Name);
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}
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continue;
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}
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break;
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}
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result = 0;
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quit:
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/* Close files */
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fclose(input);
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fclose(output);
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return result;
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}
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