95 lines
3.4 KiB
Plaintext
95 lines
3.4 KiB
Plaintext
CV8 structures (for x86 and AMD64) - used by MSVC 8 (2005)
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Everything listed in the order MASM seems to output it in.
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.debug$S: symbol and line number information
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4 bytes - version (4)
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Each major portion of DEBUG$S starts with 4 byte type, 4 byte length
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(in bytes following the length field). Each set is 4-byte aligned with 0s at
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the end (not included in length).
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0x000000F3: source filename string table
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1 byte - 0 (0th filename)
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0-terminated filename strings, 1 for each source file
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0x000000F4: source file info
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for each source file:
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4 bytes - offset of filename in source filename string table
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{2 bytes - checksum type/length? (0x0110)
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16 bytes - MD5 checksum of source file} OR
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{2 bytes - no checksum (0)}
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2 bytes - 0 (padding?)
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0x000000F2: line numbers for section
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4 bytes - start offset in section (SECREL to section start)
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2 bytes - section index (SECTION to section start)
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2 bytes - pad/align (0)
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4 bytes - section length covered by line number info
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4 bytes - offset of source file in source file info table
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4 bytes - number of line number pairs
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4 bytes - number of bytes of line number pairs + 12
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followed by pairs of:
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4 bytes - offset in section
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4 bytes - line number; if high bit is set,
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end of statement/breakpointable (?) - e.g. lines containing
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just labels should have line numbers
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0x000000F1: symbol information
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enclosed data per below
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(each element starts with 2 byte length, 2 byte type)
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basically slightly updated versions of CV5 symbol info with 0-terminated
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rather than length-prefixed strings
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0x1101 : Name of object file
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4 byte signature (0 for asm)
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0-terminated object filename
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0x1116 : creator signature (compile flag)
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4 bytes - language (3=Masm)
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4 bytes - target processor (0xD0 = AMD64)
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4 bytes - flags
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4 bytes - version
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2 bytes - ?
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0-terminated string containing creator name
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pairs of 0-terminated strings - keys/values
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from CL:
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cwd - current working directory
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cl - full path of compiler executable
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cmd - full args (one long string, double-quoted args if needed)
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src - relative path to source (from cwd)
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pdb - full path to pdb file
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ML doesn't output any pairs
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pairs list terminated with two empty strings
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0x1105 : Code Label 16:32/64
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4 bytes SECREL of symbol
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2 bytes SECTION of symbol
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1 byte - flags
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0-terminated string containing symbol name
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0x110C : local data 16:32/64
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4 bytes type index of symbol
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4 bytes SECREL of symbol
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2 bytes SECTION of symbol
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0-terminated string containing symbol name
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0x110D : global data 16:32/64
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4 bytes type index of symbol
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4 bytes SECREL of symbol
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2 bytes SECTION of symbol
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0-terminated string containing symbol name
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0x1110 : local/global (?) procedure start 16:32/64
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4 bytes - parent
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4 bytes - pend
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4 bytes - pnext
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4 bytes - procedure length (bytes)
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4 bytes - debug start (offset from procedure start to frame setup)
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4 bytes - debug end (offset from procedure start to frame cleanup)
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4 bytes - type index of procedure type
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4 bytes - offset of procedure (SECREL of symbol)
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2 bytes - segment of procedure (SECTION of symbol)
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1 byte - flags
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0-terminated string containing procedure name
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.debug$T: type information
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4 bytes - version (4)
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followed by type information per CV5 spec, padded to 4-byte boundaries
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