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#include "addr2line.h" |
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#include "asar.h" |
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#include "crc32.h" |
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#include "libstr.h" |
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#include <cstdint> |
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////////////////////////////////////////////////////////////////////////// |
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// Class to store address-to-line mappings for richer symbolic information |
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// |
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// During assembly, included files and information about generated asm |
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// should be added to this, and then read back during symbol file |
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// generation |
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void AddressToLineMapping::reset() |
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{ |
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m_fileList.reset(); |
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m_filenameCrcs.reset(); |
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m_addrToLineInfo.reset(); |
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} |
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// Adds information of what source file and line number an output rom address is at |
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void AddressToLineMapping::includeMapping(const char* filename, int line, int addr) |
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{ |
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AddrToLineInfo newInfo; |
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newInfo.fileIdx = getFileIndex(filename); |
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newInfo.line = line; |
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newInfo.addr = addr; |
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m_addrToLineInfo.append(newInfo); |
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} |
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// Helper to add file to list, and get the index of that file |
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int AddressToLineMapping::getFileIndex(const char* filename) |
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{ |
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// check if the file exists first |
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uint32_t filenameCrc = crc32((const uint8_t*)filename, (unsigned int)strlen(filename)); |
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for (int i = 0; i < m_filenameCrcs.count; ++i) |
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{ |
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if (m_filenameCrcs[i] == filenameCrc) |
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{ |
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return i; |
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} |
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} |
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// file doesn't exist, so start tracking it |
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char* data = nullptr; |
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int len = 0; |
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uint32_t fileCrc = 0; |
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if (readfile(filename, "", &data, &len)) |
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{ |
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fileCrc = crc32((const uint8_t*)data, (unsigned int)len); |
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} |
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free(data); |
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m_fileList.append({ string(filename), fileCrc }); |
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m_filenameCrcs.append(filenameCrc); |
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return m_fileList.count - 1; |
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} |
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