 sergei
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999c3a0a02
* COFF linker: postpone import section generation until unreferenced sections (and imports) are removed, and put all remaining imports into a single section. This is much more efficient than generating multiple smart-linkable import sections and immediately discarding a good half of them.
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12 years ago |
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sergei
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cded05ccef
+ MIPS linker: support linking PIC object files with non-PIC ones, by routing absolute calls into PIC code through stubs that load R25.
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12 years ago |
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sergei
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1d32b107f5
* Made address comparison 64-bit safe.
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12 years ago |
 florian
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20a534e63f
* fixed code which causes range check errors when compiled with -Cr
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12 years ago |
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sergei
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6484911f05
* TExeOutput.FixupRelocations method made virtual.
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12 years ago |
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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 years ago |
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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 years ago |
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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 years ago |
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sergei
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00ca4a74a3
* Reworked/fixed TExeSymbol.State behavior:
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12 years ago |
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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 years ago |
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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 years ago |
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sergei
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0369a30f49
* Internal linker: made sec_rodata_norel read-only.
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12 years ago |
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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 years ago |
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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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12 years ago |
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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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12 years ago |
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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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12 years ago |
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sergei
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ee62a1ed50
* Fixed unclosed comment from r22775.
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12 years ago |
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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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12 years ago |
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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 years ago |
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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 years ago |
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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 years ago |
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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 years ago |
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sergei
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b1b175dacc
+ Internal linker support for weak symbols.
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13 years ago |
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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 years ago |
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sergei
|
d79511f96e
+ Basic ld script parsing capabilities (barely enough to parse glibc2.1 'libc.so' files, lacks any error handling).
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13 years ago |
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sergei
|
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 years ago |
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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 years ago |
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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 years ago |
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sergei
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31d004e056
+ Basic executable stack support in TExeOutput.
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13 years ago |
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sergei
|
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 years ago |
