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133 Commits

Author SHA1 Message Date
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