 sergei
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f98e09d86e
- TObjData.sectiontype2options: removed oso_keep flags. They don't have any effect here because this function is used only during assembling, and oso_keep cannot be represented in object files and therefore gets lost before linking.
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12 jaren geleden |
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sergei
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2bba4e2d44
+ Stabs debug info needs swapping when linking for different endianness.
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12 jaren geleden |
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sergei
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d7c5daeccd
* Don't calculate data position of each object section. Instead, write out a copy of exesection's memory image, i.e. every objsection is placed at the same offset from its owning exesection both on disk and in memory. This approach is simpler and works regardless of alignment requirements, while existing one could work only if SectionDataAlign<=SectionMemAlign.
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12 jaren geleden |
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sergei
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00ca4a74a3
* Reworked/fixed TExeSymbol.State behavior:
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12 jaren geleden |
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sergei
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36859068f5
* Propagate AS_NEEDED flag further into Load_DynamicObject and handle it properly: shared objects marked with AS_NEEDED are added to dependencies only if they actually resolve some symbol.
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12 jaren geleden |
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sergei
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129d737523
+ Allow TObjRelocation to be created without a symbol, such relocations are being used to tag specific positions on non-x86 targets.
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12 jaren geleden |
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sergei
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0369a30f49
* Internal linker: made sec_rodata_norel read-only.
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12 jaren geleden |
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sergei
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1aea22a6ca
+ Internal linker: generic and ELF-specific support for grouped sections, allow same symbol to be defined in several COMDAT groups.
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12 jaren geleden |
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sergei
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d019670495
- Removed generic implementation of TObjData.sectionname, its existence is useless because it is completely overridden by all TObjData descendants.
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13 jaren geleden |
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sergei
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8a56c9f7dc
* TExeOutput.Order_Symbol and Order_ProvideSymbol: Instead of searching objsection by name, search for the symbol and use its objsection.
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13 jaren geleden |
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sergei
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499162ca50
* Internal linker: fixed alignment routines. Neither of existing ones is suitable for 64-bit targets: cutils.align() is 32-bit only and moreover signed, system.align() crashes on zero alignment values and handles only pointer size of source platform.
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13 jaren geleden |
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sergei
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ee62a1ed50
* Fixed unclosed comment from r22775.
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13 jaren geleden |
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sergei
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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.
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13 jaren geleden |
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sergei
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a178e28275
+ Extend TObjRelocation to hold untranslated platform-specific relocation types. This allows to avoid translating relocations into generic format when reading object files (which is just waste of time), and allows TObjRelocationType enumeration contain only types that are actually produced by compiler.
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13 jaren geleden |
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sergei
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3d63b1a2b2
+ Added a flag allowing a section to be written into both .dbg and executable files. This is needed at least for ELF SHT_NOTE sections.
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13 jaren geleden |
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sergei
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fde944bf5d
+ Declare AT_TLS and AT_GNU_IFUNC symbol types, these are needed to handle object files created by gcc in ELF internal linker.
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13 jaren geleden |
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sergei
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c41b407119
* Changed TObjSection.WriteStr method to write a zero byte after the string.
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13 jaren geleden |
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sergei
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b1b175dacc
+ Internal linker support for weak symbols.
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13 jaren geleden |
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sergei
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6f4e8927cd
* Specify explicitly whether properties of an ObjSection should be considered when adding it to ExeSection, instead of deciding it implicitly.
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13 jaren geleden |
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sergei
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d79511f96e
+ Basic ld script parsing capabilities (barely enough to parse glibc2.1 'libc.so' files, lacks any error handling).
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13 jaren geleden |
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sergei
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ec56677927
+ Added method TObjSection.writeReloc_internal to write relocations to given section+offset without need to have a symbol at target location.
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13 jaren geleden |
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sergei
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c1e7e9c85e
* TObjData.symbolref: don't lose the weak binding of asm symbol. This fixes tests/tweaklib*.pp at least for Linux x86 targets with internal assembler.
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13 jaren geleden |
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sergei
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1d09005542
+ Implemented two-stage removal of empty exe sections. Candidates for removal are first marked with oso_disabled flag, then actually removed. Descendants of TExeOutput that override MemPos_Start may modify list of sections pending removal. In particular, the COFF-specific .reloc section no longer has to be handled in base TExeOutput class.
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13 jaren geleden |
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sergei
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31d004e056
+ Basic executable stack support in TExeOutput.
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13 jaren geleden |
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sergei
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24c7b7f433
* If alignment requirement of data is bigger than alignment of the section being written to, increase section alignment to match. This mostly affects cases of non-smart linking, where wrong initial alignment used to cause hard to catch misalignment issues. It also largely obsoletes the need to supply the initial section alignment (hidden tai_section constructor,etc).
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13 jaren geleden |
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sergei
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06844fdb23
* Entirely moved relocation fixup functionality from TObjSection to TExeOutput.
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13 jaren geleden |
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sergei
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2bc792fe97
* TObjData.FName made protected.
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13 jaren geleden |
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sergei
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3b3da49ad6
* Merged TElfObjSection.secshidx and TCoffObjSection.secidx into TObjSection.index.
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13 jaren geleden |
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sergei
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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.
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13 jaren geleden |
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sergei
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1c5fa5448e
* Do not dereference null pointer, 'real' (not script-provided) common symbols don't have objsection assigned at this point.
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13 jaren geleden |
