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284 lines
11 KiB
ObjectPascal
284 lines
11 KiB
ObjectPascal
{
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Copyright (c) 2018 by Nikolay Nikolov
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This units contains support for Microsoft CodeView debug info generation
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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{ documentation for the format, available on the internet:
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earlier versions:
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http://pagesperso-orange.fr/pierrelib/exec_formats/MS_Symbol_Type_v1.0.pdf
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http://ftp.openwatcom.org/devel/docs/CodeView.pdf
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modern versions:
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https://llvm.org/docs/PDB/index.html
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https://llvm.org/devmtg/2016-11/Slides/Kleckner-CodeViewInLLVM.pdf
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}
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unit dbgcodeview;
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{$i fpcdefs.inc}
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interface
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uses
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aasmdata,
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dbgbase;
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type
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TSymbolIndex = (
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S_COMPILE = $0001, { Compile flags symbol }
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S_REGISTER = $0002, { Register variable }
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S_CONSTANT = $0003, { Constant symbol }
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S_UDT = $0004, { User-defined Type }
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S_SSEARCH = $0005, { Start search }
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S_END = $0006, { End block, procedure, with, or thunk }
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S_SKIP = $0007, { Skip - Reserve symbol space }
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S_CVRESERVE = $0008, { Reserved for internal use by the Microsoft debugger }
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S_OBJNAME = $0009, { Specify name of object file }
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S_ENDARG = $000a, { Specify end of arguments in function symbols }
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S_COBOLUDT = $000b, { Microfocus COBOL user-defined type }
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S_MANYREG = $000c, { Many register symbol }
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S_RETURN = $000d, { Function return description }
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S_ENTRYTHIS = $000e, { Description of this pointer at entry }
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S_BPREL16 = $0100, { BP relative 16:16 }
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S_LDATA16 = $0101, { Local data 16:16 }
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S_GDATA16 = $0102, { Global data 16:16 }
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S_PUB16 = $0103, { Public symbol 16:16 }
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S_LPROC16 = $0104, { Local procedure start 16:16 }
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S_GPROC16 = $0105, { Global procedure start 16:16 }
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S_THUNK16 = $0106, { Thunk start 16:16 }
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S_BLOCK16 = $0107, { Block start 16:16 }
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S_WITH16 = $0108, { With start 16:16 }
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S_LABEL16 = $0109, { Code label 16:16 }
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S_CEXMODEL16 = $010a, { Change execution model 16:16 }
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S_VFTPATH16 = $010b, { Virtual function table path descriptor 16:16 }
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S_REGREL16 = $010c, { Specify 16:16 offset relative to arbitrary register }
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S_BPREL32 = $0200, { BP relative 16:32 }
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S_LDATA32 = $0201, { Local data 16:32 }
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S_GDATA32 = $0202, { Global data 16:32 }
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S_PUB32 = $0203, { Public symbol 16:32 }
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S_LPROC32 = $0204, { Local procedure start 16:32 }
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S_GPROC32 = $0205, { Global procedure start 16:32 }
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S_THUNK32 = $0206, { Thunk start 16:32 }
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S_BLOCK32 = $0207, { Block start 16:32 }
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S_VFTPATH32 = $020b, { Virtual function table path descriptor 16:32 }
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S_REGREL32 = $020c, { 16:32 offset relative to arbitrary register }
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S_LTHREAD32 = $020d, { Local Thread Storage data }
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S_GTHREAD32 = $020e, { Global Thread Storage data }
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S_LPROCMIPS = $0300, { Local procedure start MIPS }
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S_GPROCMIPS = $0301, { Global procedure start MIPS }
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S_PROCREF = $0400, { Reference to a procedure }
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S_DATAREF = $0401, { Reference to data }
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S_ALIGN = $0402 { Page align symbols }
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);
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TLeafIndex=(
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LF_MODIFIER = $0001, { Type Modifier (const, volatile, unaligned) }
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LF_POINTER = $0002, { Pointer }
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LF_ARRAY = $0003, { Simple Array }
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LF_CLASS = $0004, { Class (C++ class declaration) }
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LF_STRUCTURE = $0005, { Structure (C and C++ struct declaration) }
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LF_UNION = $0006, { Union }
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LF_ENUM = $0007, { Enumeration }
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LF_PROCEDURE = $0008, { Procedure }
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LF_MFUNCTION = $0009, { Member Function }
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LF_VTSHAPE = $000a, { Virtual Function Table Shape }
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LF_COBOL0 = $000b, { reserved for Microfocus COBOL }
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LF_COBOL1 = $000c, { reserved for Microfocus COBOL }
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LF_BARRAY = $000d, { Basic Array }
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LF_LABEL = $000e, { Label }
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LF_NULL = $000f, { Null }
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LF_NOTTRAN = $0010, { Not Translated }
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LF_DIMARRAY = $0011, { Multiply Dimensioned Array }
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LF_VFTPATH = $0012, { Path to Virtual Function Table }
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LF_PRECOMP = $0013, { Reference Precompiled Types }
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LF_ENDPRECOMP = $0014, { End of Precompiled Types }
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LF_OEM = $0015, { OEM Generic Type }
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LF_Reserved = $0016, { Reserved }
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LF_PAD0 = $f0,
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LF_PAD1 = $f1,
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LF_PAD2 = $f2,
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LF_PAD3 = $f3,
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LF_PAD4 = $f4,
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LF_PAD5 = $f5,
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LF_PAD6 = $f6,
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LF_PAD7 = $f7,
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LF_PAD8 = $f8,
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LF_PAD9 = $f9,
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LF_PAD10 = $fa,
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LF_PAD11 = $fb,
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LF_PAD12 = $fc,
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LF_PAD13 = $fd,
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LF_PAD14 = $fe,
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LF_PAD15 = $ff,
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LF_SKIP = $0200, { Skip (used by incremental compilers to reserve space for future indexes) }
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LF_ARGLIST = $0201, { Argument List }
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LF_DEFARG = $0202, { Default Argument }
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LF_LIST = $0203, { Arbitrary List }
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LF_FIELDLIST = $0204, { Field List }
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LF_DERIVED = $0205, { Derived Classes }
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LF_BITFIELD = $0206, { Bit Fields }
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LF_METHODLIST = $0207, { Method List }
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LF_DIMCONU = $0208, { Dimensioned Array with Constant Upper Bound }
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LF_DIMCONLU = $0209, { Dimensioned Array with Constant Lower and Upper Bounds }
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LF_DIMVARU = $020a, { Dimensioned Array with Variable Upper Bound }
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LF_DIMVARLU = $020b, { Dimensioned Array with Variable Lower and Upper Bounds }
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LF_REFSYM = $020c, { Referenced Symbol }
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LF_BCLASS = $0400, { Real Base Class }
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LF_VBCLASS = $0401, { Direct Virtual Base Class }
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LF_IVBCLASS = $0402, { Indirect Virtual Base Class }
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LF_ENUMERATE = $0403, { Enumeration Name and Value }
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LF_FRIENDFCN = $0404, { Friend Function }
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LF_INDEX = $0405, { Index to Another Type Record }
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LF_MEMBER = $0406, { Data Member }
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LF_STMEMBER = $0407, { Static Data Member }
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LF_METHOD = $0408, { Method }
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LF_NESTTYPE = $0409, { Nested Type Definition }
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LF_VFUNCTAB = $040a, { Virtual Function Table Pointer }
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LF_FRIENDCLS = $040b, { Friend Class }
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LF_ONEMETHOD = $040c, { One Method }
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LF_VFUNCOFF = $040d, { Virtual Function Offset }
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LF_CHAR = $8000, { Signed Char (8-bit value) }
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LF_SHORT = $8001, { Signed Short (16-bit signed value) }
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LF_USHORT = $8002, { Unsigned Short (16-bit unsigned value) }
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LF_LONG = $8003, { Signed Long (32-bit signed value) }
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LF_ULONG = $8004, { Unsigned Long (32-bit unsigned value) }
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LF_REAL32 = $8005, { 32-bit Float }
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LF_REAL64 = $8006, { 64-bit Float }
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LF_REAL80 = $8007, { 80-bit Float }
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LF_REAL128 = $8008, { 128-bit Float }
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LF_QUADWORD = $8009, { Signed Quad Word (64-bit signed value) }
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LF_UQUADWORD = $800a, { Unsigned Quad Word (64-bit unsigned value) }
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LF_REAL48 = $800b, { 48-bit Float }
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LF_COMPLEX32 = $800c, { 32-bit Complex }
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LF_COMPLEX64 = $800d, { 64-bit Complex }
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LF_COMPLEX80 = $800e, { 80-bit Complex }
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LF_COMPLEX128 = $800f, { 128-bit Complex }
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LF_VARSTRING = $8010 { Variable-length String }
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);
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const
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LF_NUMERIC = LF_CHAR;
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type
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{ TDebugInfoCodeView }
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TDebugInfoCodeView = class(TDebugInfo)
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public
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procedure insertlineinfo(list:TAsmList);override;
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end;
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procedure InsertLineInfo_OMF_LINNUM_MsLink(list: TAsmList);
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implementation
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uses
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globtype,
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cutils,
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aasmtai,
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fmodule,
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systems;
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procedure InsertLineInfo_OMF_LINNUM_MsLink(list: TAsmList);
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var
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currfileinfo,
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lastfileinfo : tfileposinfo;
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nolineinfolevel : Integer;
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currfuncname : pshortstring;
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hp : tai;
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begin
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FillChar(lastfileinfo,sizeof(lastfileinfo),0);
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hp:=Tai(list.first);
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nolineinfolevel:=0;
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while assigned(hp) do
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begin
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case hp.typ of
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ait_function_name :
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begin
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currfuncname:=tai_function_name(hp).funcname;
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list.concat(tai_comment.Create(strpnew('function: '+currfuncname^)));
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end;
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ait_force_line :
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begin
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lastfileinfo.line:=-1;
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end;
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ait_marker :
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begin
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case tai_marker(hp).kind of
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mark_NoLineInfoStart:
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inc(nolineinfolevel);
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mark_NoLineInfoEnd:
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dec(nolineinfolevel);
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else
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;
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end;
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end;
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else
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;
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end;
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{ OMF LINNUM records do not support multiple source files }
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if (hp.typ=ait_instruction) and
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(nolineinfolevel=0) and
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(tailineinfo(hp).fileinfo.fileindex=main_module.unit_index) then
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begin
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currfileinfo:=tailineinfo(hp).fileinfo;
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{ line changed ? }
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if (lastfileinfo.line<>currfileinfo.line) and (currfileinfo.line<>0) then
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begin
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{ line directive }
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list.insertbefore(tai_directive.Create(asd_omf_linnum_line,tostr(currfileinfo.line)),hp);
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end;
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lastfileinfo:=currfileinfo;
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end;
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hp:=tai(hp.next);
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end;
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end;
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{****************************************************************************
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TDebugInfoCodeView
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****************************************************************************}
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procedure TDebugInfoCodeView.insertlineinfo(list: TAsmList);
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begin
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InsertLineInfo_OMF_LINNUM_MsLink(list);
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end;
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{****************************************************************************
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****************************************************************************}
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const
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dbg_codeview_info : tdbginfo =
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(
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id : dbg_codeview;
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idtxt : 'CODEVIEW';
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);
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initialization
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RegisterDebugInfo(dbg_codeview_info,TDebugInfoCodeView);
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end.
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