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274 Commits

Author SHA1 Message Date
nickysn
f4e26f382f + added an 'index' field to TObjSectionGroup, specifying the index of the group 
in the object file (similar to TObjSection.index, but for groups, instead of
  sections). Set the new index field, when writing .obj files with the internal
  omf object writer.

git-svn-id: trunk@39269 -
 2018-06-21 15:51:58 +00:00
nickysn
ab47c8b899 + introduce the omf_section_primary_group function. Use it instead of 
section_belongs_to_dgroup, to allow sections to belong to groups, other than
  dgroup.

git-svn-id: trunk@39268 -
 2018-06-21 13:21:53 +00:00
nickysn
5eb69edf9e + support segments (sections) with a primary group, other than 'DGROUP' in the 
OMF internal object writer

git-svn-id: trunk@39245 -
 2018-06-20 14:57:20 +00:00
nickysn
7fcec8460f + parse OMF COMENT records when reading object files and produce error messages 
for the records that are not supported, but are important for the executable
  being produced (such as weak/lazy externals, etc.)

git-svn-id: trunk@39241 -
 2018-06-18 14:48:04 +00:00
nickysn
3aff9d6735 * set MemPos to 0 for each debug .MZ section. This fixes all references within 
the debug sections themselves.

git-svn-id: trunk@39235 -
 2018-06-15 14:49:43 +00:00
nickysn
84b5265312 + append a TIS trailer after the debug ELF (this helps the watcom debugger find 
the beginning of the ELF debug image)

git-svn-id: trunk@39229 -
 2018-06-15 13:41:40 +00:00
nickysn
480eedac9f * fix/pretty print the segment and group list with too long segment/group/class 
names in the linker map file, produced by the i8086 internal linker

git-svn-id: trunk@39228 -
 2018-06-15 00:03:58 +00:00
nickysn
8af56ad6c8 * fixed silly (caused by copy/paste) bug when writing elf section contents in the dwarf debug binary, produced by TMZExeOutput.writeDebugElf 
git-svn-id: trunk@39227 -
 2018-06-14 16:29:25 +00:00
nickysn
11cf2a6996 * emit a warning, when encountering an omf reference to a section, that has been 
removed due to smartlinking

git-svn-id: trunk@39226 -
 2018-06-14 16:22:47 +00:00
nickysn
c41f736958 + allow MemPos_EndExeSection to be called with an empty section name 
git-svn-id: trunk@39225 -
 2018-06-14 16:17:00 +00:00
nickysn
97365abbcf + set the oso_debug flag to dwarf MZ exe sections 
git-svn-id: trunk@39224 -
 2018-06-14 16:15:11 +00:00
nickysn
239fb25179 + assign an MZExeUnifiedLogicalSegment object to the OMF dwarf sections, so that 
OMF relocations work on them too

git-svn-id: trunk@39223 -
 2018-06-14 16:03:05 +00:00
nickysn
7103e3cb5c + set the oso_debug section flags when reading an OMF section, which belongs to 
the 'DWARF' class

git-svn-id: trunk@39222 -
 2018-06-14 15:27:08 +00:00
nickysn
c56ebad183 + implemented writing of dwarf debug info (by calling writeDebugElf) in 
TMZExeOutput.writeData. Note that writing i8086 debug info with the internal
  linker is still disabled (i.e. it switches to external linking) in 
  options.TOption.checkoptionscompatibility

git-svn-id: trunk@39219 -
 2018-06-14 14:30:59 +00:00
nickysn
29b3ec3fdb * call MaybeSwapHeader and MaybeSwapSecHeader in TMZExeOutput.writeDebugElf, so 
the debug ELF file is generated with the correct endianness

git-svn-id: trunk@39218 -
 2018-06-14 13:02:54 +00:00
nickysn
daa47f4b7f + completed the internal debug ELF writer in TMZExeOutput.writeDebugElf (not 
enabled yet)

git-svn-id: trunk@39216 -
 2018-06-13 16:08:54 +00:00
nickysn
420a57ddc6 * use upper case OMF section names when using i8086 section-based smart linking 
git-svn-id: trunk@39212 -
 2018-06-12 00:14:08 +00:00
nickysn
b9ab9e5782 + initial (experimental) implementation of section-based smartlinking for i8086. 
Use -dI8086_SMARTLINK_SECTIONS to enable.

git-svn-id: trunk@39211 -
 2018-06-11 16:56:33 +00:00
nickysn
bfdd75eabf + support AB_LOCAL symbols in OMF object files, by implementing support for 
LPUBDEF/LPUBDEF32 OMF records

git-svn-id: trunk@39210 -
 2018-06-11 15:29:23 +00:00
nickysn
e6a8c058e0 * moved the handling of LIDATA OMF records (which currently only produces a 
'LIDATA records are not supported' error) to TOmfObjInput.ReadLeOrLiDataAndFixups

git-svn-id: trunk@39171 -
 2018-06-04 14:20:07 +00:00
nickysn
02fc2827e0 * TOmfObjInput.ReadLEDataAndFixups renamed ReadLeOrLiDataAndFixups 
git-svn-id: trunk@39170 -
 2018-06-04 14:10:11 +00:00
nickysn
e410a0aefb + support OMF FIXUPP records, containing only THREAD subrecords to occur without 
a preceding LEDATA or LIDATA record (this is allowed by the OMF spec)

git-svn-id: trunk@39169 -
 2018-06-04 14:00:36 +00:00
nickysn
002b116322 * use a case statement, instead of 'if', based on the OMF record type in 
TOmfObjInput.ReadLEDataAndFixups. This is to allow (in the future) handling of
  LIDATA records and FIXUPP records without preceding LEDATA/LIDATA. No
  functional changes in this commit.

git-svn-id: trunk@39166 -
 2018-06-04 13:11:55 +00:00
nickysn
98634899f2 + support OMF fixups, determined by thread 
git-svn-id: trunk@39151 -
 2018-05-30 15:49:27 +00:00
nickysn
2fb73de404 + support reading OMF files with THREAD FIXUPP subrecords; note that fixups, 
determined by thread are still not yet implemented

git-svn-id: trunk@39150 -
 2018-05-30 14:30:54 +00:00
nickysn
ebecfb1ce9 + added a FFixupThreads property with a TOmfThreads object to TOmfObjInput 
git-svn-id: trunk@39149 -
 2018-05-30 14:10:12 +00:00
nickysn
f505718e6c + started implementing TMZExeOutput.writeDebugElf; nothing is written yet, only 
the elf header fields are filled with the values, generated by wlink

git-svn-id: trunk@39115 -
 2018-05-25 14:20:13 +00:00
pierre
f80e73eac2 Remove references to sym variable when not set (revealed warning generated when compiling with -O4 option) 
git-svn-id: trunk@39101 -
 2018-05-23 20:45:21 +00:00
nickysn
8c842c1337 * changed the type of the 'size' parameter of TOmfObjOutput.AddSegment to 
TObjSectionOfs instead of aword

git-svn-id: trunk@39093 -
 2018-05-22 13:48:55 +00:00
nickysn
f5862efcd4 + support writing 32-bit LEDATA OMF records 
git-svn-id: trunk@39092 -
 2018-05-22 13:23:56 +00:00
nickysn
ca50b14e21 * set the omf section size limit to 32-bit for the dwarf debug sections 
git-svn-id: trunk@39088 -
 2018-05-22 12:41:51 +00:00
nickysn
600b460ecd + added new debug output option -godwarfomflinnum for generating line number 
information in OMF LINNUM records, in addition to the DWARF debug information.
  This enables source level debugging on i8086-msdos, when using the Open Watcom
  Debugger, provided the source was compiled with this option and the external
  linker (wlink) was used for generating the executable (the internal linker
  does not yet support generating debug information).

git-svn-id: trunk@39014 -
 2018-05-17 14:38:50 +00:00
nickysn
3d6d020fca + implemented the actual writing of LINNUM OMF records 
git-svn-id: trunk@39008 -
 2018-05-16 17:37:28 +00:00
nickysn
b80642c384 + started implementing support for generating Microsoft CodeView debug 
information. Only enabled on i8086 (for now). Does not do much yet, but
  hopefully, soon it'll start emitting line number information for i8086-msdos
  that is usable by DOS debuggers.

git-svn-id: trunk@39006 -
 2018-05-16 15:25:33 +00:00
nickysn
718e83954f * merge duplicate strings in the LNAMES section, when writing OMF object 
modules. This results in slightly smaller obj files.

git-svn-id: trunk@38967 -
 2018-05-10 13:07:32 +00:00
nickysn
65c2575883 + added win16stub const array (small dos exe, which prints 'This program 
requires Microsoft Windows.'). Will be used by the future win16 internal
  linker.

git-svn-id: trunk@37775 -
 2017-12-21 15:00:43 +00:00
nickysn
7763942907 * fixed the 'Unsupported fixup location type' error messages in the MZ internal 
linker

git-svn-id: trunk@37631 -
 2017-11-28 02:29:28 +00:00
nickysn
2af5c9d508 * changed type used for section alignment from byte/shortint to longint, so the 
internal object writer and the internal linker support object files with
  sections with alignment >=256

git-svn-id: trunk@37518 -
 2017-10-25 15:47:29 +00:00
florian
e7fd71db36 + write name of segment/group which is too large 
git-svn-id: trunk@35456 -
 2017-02-19 19:15:18 +00:00
nickysn
c2305809dc + added an i8086-embedded target support to the compiler (RTL and makefile 
support are not done yet)

git-svn-id: trunk@33999 -
 2016-06-17 19:15:24 +00:00
florian
90b284e169 + generate .debug_aranges sections for dwarf debug info: enables faster address to debug info translation 
git-svn-id: trunk@33454 -
 2016-04-08 20:19:59 +00:00
nickysn
db5e67c3fe + introduced a new type TRelocDataInt for use as the 'data' parameter for 
TObjData.writeReloc; on i8086 it was changed to longint to allow using 32-bit
  relocations
+ added support for writing 32-bit OMF relocations

git-svn-id: trunk@32936 -
 2016-01-13 17:57:36 +00:00
nickysn
4f8baf29c6 + handle RELOC_FARPTR48 relocations as well in TOmfObjData.writeReloc; this is 
not used yet, but is added for completeness (and might be useful, if we add an
  i386 target, that uses the OMF object format)

git-svn-id: trunk@32935 -
 2016-01-13 15:07:41 +00:00
nickysn
e628729e1d + support 48-bit (16:32) far pointer relocations in the OMF internal linker 
git-svn-id: trunk@32928 -
 2016-01-11 17:50:27 +00:00
nickysn
02a6b77e32 + added support for 32-bit offset OMF relocations (fltOffset32) in the OMF internal linker 
git-svn-id: trunk@32927 -
 2016-01-11 17:34:56 +00:00
nickysn
c8e20dfe74 + added i8086-specific consts RELOC_ABSOLUTE16 and RELOC_RELATIVE16, which are 
aliases for RELOC_ABSOLUTE and RELOC_RELATIVE
* use RELOC_ABSOLUTE16 and RELOC_RELATIVE16, instead of RELOC_ABSOLUTE and
  RELOC_RELATIVE in the linker-related parts of the OMF support (OMF object
  reader and MZ exe output). This will make the code more readable, when 32-bit
  relocation support is added to the linker. It will also make easier to reuse
  this code for i386, in case we add an i386 target, that uses the OMF object
  format.

git-svn-id: trunk@32923 -
 2016-01-11 15:24:34 +00:00
nickysn
b9ca24d4df + added property to the omf object reader, specifying whether symbol names 
should be case sensitive (on by default, for now)

git-svn-id: trunk@32435 -
 2015-11-21 15:35:42 +00:00
nickysn
d5428ee210 * the CaseSensitive property in TOmfObjInput renamed CaseSensitiveSegments, 
because it only applies to segments/groups/overlays and not symbols.

git-svn-id: trunk@32389 -
 2015-11-21 11:25:21 +00:00
nickysn
e4b77c7aab * accept omf object modules, containing LINNUM and LINNUM32 records in the 
i8086-msdos internal linker

git-svn-id: trunk@32382 -
 2015-11-20 17:41:35 +00:00
nickysn
30a7875d56 + added hack for supporting linking with .obj files, generated by Borland's 
binobj tool with the i8086-msdos internal linker

git-svn-id: trunk@32381 -
 2015-11-20 17:40:34 +00:00
nickysn
0d48e5f6c7 + added support to the omf/i8086-msdos internal linker for omf relocation with 
location type 3 (fltFarPointer). This isn't generated by nasm, nor by the
  internal object writer (yet), but may be generated by other
  assemblers/compilers - TASM generates it (tested with it), MASM probably also
  does.

git-svn-id: trunk@32346 -
 2015-11-16 14:51:05 +00:00
nickysn
b744c83581 + implemented support for omf fixup records with target group other than 'DGROUP' in the i8086-msdos internal linker 
git-svn-id: trunk@32294 -
 2015-11-12 16:40:17 +00:00
nickysn
7d41d19150 + added an error message when trying to compile a tiny model DOS .COM file with 
segment relocations

git-svn-id: trunk@32276 -
 2015-11-08 21:13:16 +00:00
Jonas Maebe
5f7b242222 * fixed compilation with -Oodfa/-O3 
git-svn-id: trunk@31679 -
 2015-09-14 16:10:57 +00:00
Jonas Maebe
991e1f49bd * store a pointer to the used tasminfo record in every assembler writer, so 
that we can use assembler writers with different conventions from the
    currently set target_asm (e.g. an x86 assembler writer for inline assembly
    in LLVM IR)

git-svn-id: trunk@31628 -
 2015-09-12 23:32:13 +00:00
nickysn
393d86a2e5 + implemented writing proper win16 dll import libraries 
git-svn-id: trunk@31532 -
 2015-09-05 13:45:23 +00:00
nickysn
1487236f29 + support addr_fardataseg references in the internal asm writer 
git-svn-id: trunk@31511 -
 2015-09-04 14:33:48 +00:00
nickysn
4a855b140a + support mixing initialized and bss data in the same object section (only in 
case the section options contain the new option 'oso_sparse_data') in the
  internal object writer (needed for the huge memory model)

git-svn-id: trunk@31503 -
 2015-09-04 13:16:45 +00:00
nickysn
2725b1160b * name the 'FAR_DATA' class segments as module_name+'_DATA' 
git-svn-id: trunk@31499 -
 2015-09-03 19:00:55 +00:00
nickysn
cfab5d3d3e * the omfbase.omf_segclass const array converted to function in order to be able 
to return different names for some sections in the huge memory model

git-svn-id: trunk@31496 -
 2015-09-03 17:48:07 +00:00
nickysn
cc2e27b555 * the function which returns the alignment of omf sections moved to unit 
omfbase, so it can be used by the nasm asm writer as well

git-svn-id: trunk@31486 -
 2015-09-03 12:36:58 +00:00
nickysn
3abfa177c4 * initialization of stack and dwarf debug omf sections moved from 
TOmfObjSection.create to TOmfObjData.createsection and is now based on the
  section type (TAsmSectionType) instead of name (string)

git-svn-id: trunk@31485 -
 2015-09-03 11:38:51 +00:00
nickysn
efef3882a0 * moved the code for determining whether an omf object section should 
belong to group DGROUP to a function in unit omfbase (so it can be used in the
  future by the nasm asm writer as well)

git-svn-id: trunk@31484 -
 2015-09-02 16:11:02 +00:00
nickysn
2e6d462ff6 * omf segment class names moved to a const array in omfbase, so they can be used 
(in the future) in the nasm asm writer as well

git-svn-id: trunk@31483 -
 2015-09-02 14:37:20 +00:00
nickysn
4061628ffb * the i8086-msdos default code segment (in near code memory models) renamed 
'_TEXT'. This name is used in object modules, produced by Borland C and Open
  Watcom.

git-svn-id: trunk@31482 -
 2015-09-02 13:14:12 +00:00
nickysn
1a8e203bf5 * moved the omf section names constant to the omfbase unit and use it also in 
the nasm asm writer when targeting i8086-msdos

git-svn-id: trunk@31481 -
 2015-09-02 12:28:46 +00:00
nickysn
919cc8377a + added class type property CObjSymbol to TExeOutput as well 
git-svn-id: trunk@31426 -
 2015-08-25 16:07:59 +00:00
nickysn
19aab3fd31 + i8086-msdos internal linker: write symbol addresses in segment:offset format in the linker map file 
git-svn-id: trunk@31425 -
 2015-08-25 14:48:08 +00:00
nickysn
f41692710f - removed bogus comment from TMZExeUnifiedLogicalSegment.CalcMemPos 
git-svn-id: trunk@31423 -
 2015-08-25 14:04:51 +00:00
nickysn
2467cb34c2 * fixed MemBasePos calculation for segments that go beyond the previous segment base 
git-svn-id: trunk@31421 -
 2015-08-25 13:06:50 +00:00
nickysn
2c05bcc28f + i8086-msdos internal linker: in the far data memory models, fill 
MaxExtraParagraphs in the MZ exe header according to the specified max heap
  size

git-svn-id: trunk@31420 -
 2015-08-25 11:40:02 +00:00
nickysn
dad0f015a9 - removed the TOmfObjSectionGroup class, because it is not used 
git-svn-id: trunk@31419 -
 2015-08-25 11:32:30 +00:00
nickysn
6e20e0fc84 + added checks and error messages in case a 16-bit segment or group exceeds 64k 
git-svn-id: trunk@31416 -
 2015-08-25 01:01:20 +00:00
nickysn
851ebd9850 * use a normalized MemBasePos (i.e. offset<16) for stack segments 
git-svn-id: trunk@31415 -
 2015-08-25 00:29:02 +00:00
nickysn
fb1be14337 * yet another fix for the MZ relocation offsets 
+ support RELOC_SEG and RELOC_SEGREL relocations pointing to an object section

git-svn-id: trunk@31412 -
 2015-08-24 23:40:07 +00:00
nickysn
faa9362b44 + calculate and fill "min extra paragraphs" in the MZ header 
git-svn-id: trunk@31403 -
 2015-08-24 21:33:26 +00:00
nickysn
2100714ebe + implemented RELOC_SEG and RELOC_SEGREL fixups for a symbol target 
* bug fix in the MZ relocation generated for RELOC_DGROUP/RELOC_DGROUPREL
  relocations
* reduced code duplication in TMZExeOutput.DoRelocationFixup a little by using
  nested procedures

git-svn-id: trunk@31401 -
 2015-08-24 21:12:26 +00:00
nickysn
0eb1cd157a * don't subtract two from the end of the stack segment when calculating the 
initial SP value - seems to be wlink compatible

git-svn-id: trunk@31399 -
 2015-08-24 20:22:01 +00:00
nickysn
2431b6e63b * i8086-msdos internal linker: use a different approach for finding the stack 
segment - either its class name must be 'STACK' (wlink compatible) or its
  combine type must be scStack (tlink compatible)

git-svn-id: trunk@31398 -
 2015-08-24 20:18:44 +00:00
nickysn
d2a47a7c69 + fill the initial stack address in the MZ exe header 
git-svn-id: trunk@31396 -
 2015-08-24 18:28:00 +00:00
nickysn
18cdc08c26 + prevent certain special omf sections from being smartlinked out 
git-svn-id: trunk@31394 -
 2015-08-24 18:10:50 +00:00
nickysn
fe69e3324c + implemented RELOC_DGROUP and RELOC_DGROUPREL in TMZExeOutput.DoRelocationFixup 
git-svn-id: trunk@31393 -
 2015-08-24 17:55:44 +00:00
nickysn
0eda4c954d + handle omf references to a segment with frame method=target 
git-svn-id: trunk@31392 -
 2015-08-24 17:34:04 +00:00
nickysn
e88dc71983 + import DGROUP omf fixup references 
git-svn-id: trunk@31390 -
 2015-08-24 16:53:44 +00:00
nickysn
73ea3b7ff1 + implemented fixups targeting a logical segment offset in the omf internal linker 
git-svn-id: trunk@31389 -
 2015-08-24 15:50:47 +00:00
nickysn
3d3eb6c472 * stop with an error when encountering omf fixups that aren't yet implemented 
git-svn-id: trunk@31388 -
 2015-08-24 15:20:59 +00:00
nickysn
d7f08866e5 * use the TMZExeOutput.MZFlatContentSection property in TInternalLinkerMsDos.GetTotalSizeForSegmentClass 
instead of finding the exe section by name

git-svn-id: trunk@31387 -
 2015-08-24 15:09:35 +00:00
nickysn
449506ffb7 + write mz exe section data 
+ fill MaxExtraParagraphs in the MZ header with $ffff by default, to prevent DOS
  from loading the program at the highest possible address

git-svn-id: trunk@31386 -
 2015-08-24 15:02:37 +00:00
nickysn
fdbfaacec8 + calculate the MZ loadable image size (excluding bss, stack and heap) 
+ only write the loadable image size number of bytes to .com files

git-svn-id: trunk@31385 -
 2015-08-24 14:42:43 +00:00
nickysn
a7e63581b4 + i8086-msdos internal lniker: find the program entry point and fill it in the 
mz exe header; also write it in the linker map file

git-svn-id: trunk@31384 -
 2015-08-24 14:22:17 +00:00
nickysn
e0bd25191e + also take into account the frame method when converting the omf start address to a symbol 
git-svn-id: trunk@31383 -
 2015-08-24 13:46:37 +00:00
nickysn
cff94639d5 * i8086-msdos internal linker: improved handling of the _edata and _end internal 
symbols - add them to 'DGROUP' and define them in a section with class 'BSS'

git-svn-id: trunk@31382 -
 2015-08-24 12:39:39 +00:00
nickysn
989afc6ecb * show section addresses relative to the segment's MemBasePos in the i8086-msdos 
internal linker map file

git-svn-id: trunk@31380 -
 2015-08-24 01:31:16 +00:00
nickysn
fa8841d575 + support omf group-relative fixups pointing to external symbol (e.g. 
'wrt dgroup' references)
- removed debug code from TMZExeOutput.DoRelocationFixup

git-svn-id: trunk@31378 -
 2015-08-24 00:55:56 +00:00
nickysn
173713ce57 * preserve original order (as specified in the link script) of omf sections with 
the same name. This ensures that the startup code always comes first, which is
  important for .com files

git-svn-id: trunk@31377 -
 2015-08-24 00:30:24 +00:00
nickysn
f08e98bfd0 + partial implementation of DoRelocationFixups for the i8086-msdos internal linker 
git-svn-id: trunk@31375 -
 2015-08-24 00:23:56 +00:00
nickysn
78cbb1ba2b + implemented writing .com files in the i8086-msdos internal linker 
git-svn-id: trunk@31374 -
 2015-08-23 22:06:30 +00:00
nickysn
fa9a1f706b + i8086-msdos internal linker: calculate the final segments and groups locations 
in memory (incl. segment bases) before DoRelocations; list segments and groups
  in the map file as well

git-svn-id: trunk@31373 -
 2015-08-23 21:36:24 +00:00
nickysn
5dc42404cf * capitalize omf segment class names, as that's how other 16-bit compilers write them 
git-svn-id: trunk@31371 -
 2015-08-22 19:07:04 +00:00
nickysn
e09ab50724 * capitalize the group name 'DGROUP' in the generated omf object files, because 
that's how it is usually written by other 16-bit compilers

git-svn-id: trunk@31369 -
 2015-08-22 16:28:36 +00:00
nickysn
70677e3e44 + added a descendant class for omf section groups, which adds base address, size 
and a method to calculate these new fields

git-svn-id: trunk@31363 -
 2015-08-22 12:23:49 +00:00
nickysn
9aeb94676c + added virtual method to tobjsection for returning a string representation of 
the section's base address for the internal linker map file
* implemented it for omf sections to return the address in 'seg:ofs' format

git-svn-id: trunk@31359 -
 2015-08-21 16:21:16 +00:00
nickysn
808b5dfb78 * allow gaps between LEDATA records, as nasm seems to produce them. They're 
automatically filled with zeros. This fixes reading of the tiny memory model
  startup code object module by the i8086-msdos internal linker.

git-svn-id: trunk@31354 -
 2015-08-20 22:57:15 +00:00
nickysn
1b9eeee25d + order omf sections first by classname, then by name 
git-svn-id: trunk@31352 -
 2015-08-20 21:21:52 +00:00
nickysn
7d586df038 * override DoRelocationFixup in TMZExeOutput - doing nothing for now, but 
prevents the "abstract method called" error

git-svn-id: trunk@31350 -
 2015-08-20 20:55:24 +00:00
nickysn
0fb92b803b * set the MZ exe section limit to 640k 
git-svn-id: trunk@31348 -
 2015-08-20 15:01:39 +00:00
nickysn
07fff73527 * fixed the "Incompatible section options" error when using the omf internal linker to produce msdos executables 
git-svn-id: trunk@31347 -
 2015-08-20 14:50:59 +00:00
nickysn
a4c188ff01 + partial implementation of omf fixup reading 
git-svn-id: trunk@31346 -
 2015-08-19 15:55:03 +00:00
nickysn
6d6ed840a4 * set the data record start offset of the omf fixup object when reading omf fixups 
git-svn-id: trunk@31342 -
 2015-08-18 15:18:03 +00:00
nickysn
cbc676e80e * ignore case (i.e. always convert to upper case) in omf segment/class/overlay/group names 
git-svn-id: trunk@31340 -
 2015-08-18 14:41:29 +00:00
nickysn
d4b0b6f6e6 * use SegmentName+'||'+ClassName for the name of OMF sections when reading OMF 
files, because omf segments are (according to the spec) identified by the
  tuple <SegmentName,ClassName,OverlayName> and not just by name (and we ignore
  the overlay name)

git-svn-id: trunk@31339 -
 2015-08-18 14:31:59 +00:00
nickysn
9ff0057a94 * return true if TOmfObjInput.ReadObjData is successful 
git-svn-id: trunk@31336 -
 2015-08-17 12:25:59 +00:00
nickysn
ef207475fd + parse omf modend records and add symbol for module start address 
git-svn-id: trunk@31324 -
 2015-08-14 15:42:43 +00:00
nickysn
e59c164844 + parse FIXUPP records in the omf object reader (although converting them TOmfRelocation is not yet implemented) 
git-svn-id: trunk@31320 -
 2015-08-13 13:44:46 +00:00
nickysn
0cd1a88588 * fixed memory leak in TOmfObjInput.ReadExtDef 
git-svn-id: trunk@31313 -
 2015-08-11 13:39:26 +00:00
nickysn
9fc100574c + added property TObjSymbol.group for use with the omf object format 
git-svn-id: trunk@31312 -
 2015-08-11 13:38:28 +00:00
nickysn
c50991713c + implemented reading of omf public names 
git-svn-id: trunk@31311 -
 2015-08-11 13:04:22 +00:00
marco
8d145ce706 * initialize secalign before case statement to avoid warning. Mantis #28326 
git-svn-id: trunk@31145 -
 2015-06-22 11:48:42 +00:00
nickysn
318874837f + implemented 16-bit dos MZ exe header writer 
git-svn-id: trunk@31002 -
 2015-06-07 14:31:02 +00:00
nickysn
2c1049b5d4 + read the LEDATA omf records (i.e. the actual section data) 
git-svn-id: trunk@30975 -
 2015-06-04 23:03:22 +00:00
nickysn
d0d3cef868 + implemented reading of omf extdef (external symbols) records 
git-svn-id: trunk@30973 -
 2015-06-03 13:07:48 +00:00
nickysn
096743d74d + also read the omf segment size and set objsec.Size 
git-svn-id: trunk@30971 -
 2015-06-01 23:31:53 +00:00
nickysn
1cae939615 + implemented parsing of omf group definitions as well 
git-svn-id: trunk@30970 -
 2015-06-01 23:03:48 +00:00
nickysn
5539d6366f + implemented reading of SEGDEF omf records 
git-svn-id: trunk@30969 -
 2015-06-01 21:28:55 +00:00
nickysn
28f7f16fc7 + implemented reading of the LNAMES omf record 
git-svn-id: trunk@30968 -
 2015-06-01 14:25:51 +00:00
nickysn
be57d4900d + started implementing TOmfObjInput.ReadObjData - we go through the expected 
records and read them (without parsing them yet) and verify their checksums

git-svn-id: trunk@30965 -
 2015-05-31 22:32:54 +00:00
nickysn
8515160e9d + set CObjData in the TMZExeOutput constructor 
git-svn-id: trunk@30866 -
 2015-05-15 22:35:32 +00:00
nickysn
29a1c74e34 + implemented TOmfObjInput.CanReadObjData 
git-svn-id: trunk@30864 -
 2015-05-15 22:23:30 +00:00
nickysn
3b288554e7 + more msdos internal linker classes added 
git-svn-id: trunk@30811 -
 2015-05-06 14:49:07 +00:00
nickysn
ced1368221 * fixed emitting of RELOC_SEG and RELOC_SEGREL relocations within the same 
section in the omf internal obj writer

git-svn-id: trunk@30809 -
 2015-05-06 10:40:38 +00:00
nickysn
328a4fa19a + optimization: don't emit relative relocation entries to the same section in 
the omf obj writer

git-svn-id: trunk@30808 -
 2015-05-06 10:05:15 +00:00
nickysn
b17087a645 - removed debug writelns after r30800 
git-svn-id: trunk@30802 -
 2015-05-04 17:13:17 +00:00
nickysn
f1252d7582 - removed unnecessary setting of TargetMethod and TargetDatum (since these are 
always set in the following 'if' statement) in TOmfRelocation.BuildOmfFixup

git-svn-id: trunk@30801 -
 2015-05-04 17:11:02 +00:00
nickysn
0da38dbc79 + implemented support for the 'dgroup' (addr_dgroup) relocation type in the omf 
internal object writer

git-svn-id: trunk@30800 -
 2015-05-04 17:07:19 +00:00
nickysn
37840bc811 - removed commented out debug code from TOmfObjData.writeReloc 
git-svn-id: trunk@30799 -
 2015-05-04 16:24:28 +00:00
nickysn
7923b6142e + finished the internal omf library writer (implementing writing of the library 
dictionary at the and of the file) and enabled it for the i8086 internal asm

git-svn-id: trunk@30701 -
 2015-04-21 23:31:02 +00:00
nickysn
a365da0b44 + added class (empty for now) TOmfLibObjectWriter and hook it as an internal ar 
in the omf internal assembler constructor. Note it is not used yet, because of
  the af_needar assembler flag.

git-svn-id: trunk@30698 -
 2015-04-21 19:28:51 +00:00
nickysn
778a678956 * use a 4 byte alignment for the dwarf debug sections on i8086 (not sure if 
that's correct for 16-bit dwarf, but currently the compiler emits 4-byte
  tai_aligns, so setting the section alignment to 4 avoids problems in the
  internal object writer)

git-svn-id: trunk@30685 -
 2015-04-20 13:15:26 +00:00
nickysn
5a1ce6162b * set the bss, rodata and rodata_norel section alignment to 2 bytes for the i8086-msdos target 
git-svn-id: trunk@30680 -
 2015-04-20 01:27:26 +00:00
nickysn
ae04eb258b * when splitting the section data in chunks, make sure fixups never cross chunk boundaries 
git-svn-id: trunk@30679 -
 2015-04-20 00:02:40 +00:00
nickysn
7fca6dd6c1 * set the properties of the dwarf debug info sections in the omf obj writer 
as required by wlink in order to be recognized and handled as debug info
  (i.e. class=DWARF, use32)

git-svn-id: trunk@30636 -
 2015-04-18 00:42:17 +00:00
nickysn
c407f61107 * generate the omf alignment based on the value of SecAlign, instead of 
duplicating the code from sectiontype2align in the TOmfObjSection constructor

git-svn-id: trunk@30603 -
 2015-04-15 08:55:19 +00:00
nickysn
d7416afd88 * override sectiontype2align in the omf writer and set the same alignments as 
the ones, currently produced by nasm

git-svn-id: trunk@30602 -
 2015-04-15 08:31:06 +00:00
nickysn
a7e059c875 + support segment relocations in the omf writer 
git-svn-id: trunk@30600 -
 2015-04-14 22:46:01 +00:00
nickysn
03e8c3ae05 + support RELOC_RELATIVE relocations in the omf object writer, by using omf's 
"self relative" (instead of "segment relative") fixups. "Hello world" and
  fpctris in the small memory model now work (under dosbox, at least) with the
  internal object writer.

git-svn-id: trunk@30581 -
 2015-04-13 22:44:31 +00:00
nickysn
3dd914a7b9 + write the proper external symbol index in the omf FIXUPP records. WLink no 
longer crashes when processing our obj files :)

git-svn-id: trunk@30528 -
 2015-04-09 23:33:22 +00:00
nickysn
d8f04418be + write EXTDEF records in the omf output file 
git-svn-id: trunk@30527 -
 2015-04-09 23:27:45 +00:00
nickysn
8a831f4c7f * always clear segments and groups in the beginning of TOmfObjOutput.writeData, because the same objects is used for creating multiple object files 
git-svn-id: trunk@30516 -
 2015-04-09 15:42:29 +00:00
nickysn
7ecb7f83e9 + create omf fixups for external symbols (external symbol index not set yet) 
git-svn-id: trunk@30514 -
 2015-04-09 13:56:55 +00:00
nickysn
e1ae2d9387 + create a symbol relocation for external symbols in TOmfObjData.writeReloc 
git-svn-id: trunk@30512 -
 2015-04-09 13:48:56 +00:00