 sergei
|
8688f5e7b9
* Moved ELF definitions into a separate unit, which can be reused by CPU back-end units.
|
13 lat temu |
|
sergei
|
129d737523
+ Allow TObjRelocation to be created without a symbol, such relocations are being used to tag specific positions on non-x86 targets.
|
13 lat temu |
|
sergei
|
a730830c19
* Factored code for allocating GOT slots into TElfExeOutput.AllocGOTSlot.
|
13 lat temu |
|
sergei
|
a7e7d97da6
* ELF linker: fixed written values of STT_TLS symbols, they must be relative to PT_TLS segment address.
|
13 lat temu |
|
sergei
|
0369a30f49
* Internal linker: made sec_rodata_norel read-only.
|
13 lat temu |
|
sergei
|
2c011312db
* Changed TElf32Header and TElf64Header definitions, making them look closer to canonical ones (first 16 bytes are a single array field, addressable via EI_xx indices).
|
13 lat temu |
|
sergei
|
1aea22a6ca
+ Internal linker: generic and ELF-specific support for grouped sections, allow same symbol to be defined in several COMDAT groups.
|
13 lat temu |
|
sergei
|
277200e7ae
+ ELF linker: Support writing RELATIVE dynamic relocations ahead of the rest, and their number in DT_REL[A]COUNT dynamic tag (still needs changes in CPU-specific code to function properly).
|
13 lat temu |
|
sergei
|
d019670495
- Removed generic implementation of TObjData.sectionname, its existence is useless because it is completely overridden by all TObjData descendants.
|
13 lat temu |
|
sergei
|
4410fe86d2
* ELF linker: moved some code (which must be executed only once when linking with separate debug file) from MemPos_Start into AfterUnusedSectionRemoval, this removes some checks and simplifies things.
|
13 lat temu |
|
sergei
|
6023f73e2a
* ELF linker: improved dynamic symbol handling.
|
13 lat temu |
|
sergei
|
6d70009f06
+ ELF linker. Works on x86_64-linux and i386-linux good enough to pass the testsuite, but still requires a lot of work in nearly all aspects. In particular, no attempt to resolve symbols from shared libs is done, everything is just treated as imports. Symbol versioning isn't supported either.
|
13 lat temu |
|
sergei
|
339d06aa58
* When writing section names of .o files, let sh_name of sections with relocations point into names of corresponding relocation sections past the .rel/.rela prefix. In case of smartlinked sections this saves almost half of .shstrtab section size.
|
13 lat temu |
|
sergei
|
c41b407119
* Changed TObjSection.WriteStr method to write a zero byte after the string.
|
13 lat temu |
|
sergei
|
c529356693
* Split most CPU-specific code from ogelf.pas into newly created cpuelf.pas units in CPU subdirectories.
|
13 lat temu |
|
sergei
|
f14e038172
+ Implemented writeReloc_internal method for TElfObjSection.
|
13 lat temu |
|
sergei
|
95535ea845
- Do not create any default object sections. On targets with section-based smartlink these sections remain empty and only cause linker to do useless job of removing them. The same happens when loading object files because duplicate section names are allowed at that time. On targets without smartlink they don't stay empty, but the internal assembler creates sections when required, so not creating initial sections effectively doesn't change anything.
|
13 lat temu |
|
sergei
|
944189f046
- don't supply sh_link and sh_info members to TElfObjSection.create_ext.
|
13 lat temu |
|
sergei
|
d4b7a6a9bd
+ Added some more ELF definitions
|
13 lat temu |
|
sergei
|
3b3da49ad6
* Merged TElfObjSection.secshidx and TCoffObjSection.secidx into TObjSection.index.
|
13 lat temu |
|
sergei
|
27f342225a
* Changed most fields of ELF structures to unsigned, to conform to their official declarations.
|
13 lat temu |
|
sergei
|
712f5d1c26
- Removed oso_readonly and oso_noload section options, it is enough to have just oso_write and oso_load to express possible section states.
|
13 lat temu |
|
sergei
|
37b8cd1b7a
* If relocation to a local label cannot be translated into (section+offset), then the target symbol must be written into symbol table. Fixes IE 200603012 in number of tests with -Cg on i386-linux (and possibly other targets with internal ELF assembler).
|
13 lat temu |
|
sergei
|
1284be72ea
* Fixed alignment of '.data' section, which got accidentally changed from 16 to 8 by r21374, causing e.g. tests/test/tasm3.pp to crash if compiled without -Cg and on target without tf_smartlink_sections. The root problem is not here, however: if appending data with higher alignment to a section with lower alignment, we likely need to raise the alignment of section.
|
13 lat temu |
|
sergei
|
bd7ebdce18
* ELF relocation cleanup/improvement:
|
13 lat temu |
|
sergei
|
85f6062e05
* Reworked writing ELF symbols into a separate class, TElfSymtab, which is also suitable for creating symbol tables in executable and dynamic ELF files.
|
13 lat temu |
|
sergei
|
d0df2b247b
* ogelf.pas: pass objdata into TElfObjSection.create_ext, so sections created via create_ext are 'owned' the same way as ones created via objData.CreateSection.
|
13 lat temu |
|
sergei
|
cc5fda2a1e
+ ogelf.pas: added definitions for program headers and .dynamic section, and reformatted existing ones to reduce line count.
|
13 lat temu |
|
sergei
|
7d3294b504
* Moved 4 procedures for basic reading/writing TObjSection contents into ogcoff.pas, so they don't have to be reimplemented for every output format.
|
13 lat temu |
|
sergei
|
263b46be86
* ogelf.pas: Changed MaybeSwap* into procedures, makes them more suitable for reuse in the upcoming reader (and reduces amount of copying while writing, too).
|
13 lat temu |
