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comptime-allocator
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Author SHA1 Message Date
Jakub Konka 29c7f6810f macho: fix 32bit builds 2024-12-02 22:05:21 -05:00
Jakub Konka f78006c1bf CMakeLists: add MachO/Dwarf.zig and remove MachO/dwarf.zig 2024-12-02 22:05:21 -05:00
Jakub Konka 0769afbb0f macho: refactors errors from parsing DWARF 
Currently we don't report any errors to the user due to a bug in
self-hosted x86_64-macos backend.
 2024-12-02 22:05:21 -05:00
Jakub Konka c824b35051 macho: move things around in MachO/Object.zig and refactor 2024-12-02 22:05:21 -05:00
Jakub Konka 8e81500051 macho: handle DWARFv5 when parsing debug info in objects 2024-12-02 22:05:21 -05:00
Jakub Konka 808306f49a macho: rename dwarf.zig to Dwarf.zig 
Separate commit since macOS is case-insensitive by default and so
I had to do it from Linux.
 2024-12-02 22:05:21 -05:00
Jakub Konka 6ff267dc26 link/Elf: ensure we always sort all relocations by r_offset in -r mode 
According to a comment in mold, this is the expected (and desired)
condition by the linkers, except for some architectures (RISCV and
Loongarch) where this condition does not have to upheld.

If you follow the changes in this patch and in particular doc comments
I have linked the comment/code in mold that explains and implements
this.

I have also modified `testEhFrameRelocatable` test to now test both
cases such that `zig ld -r a.o b.o -o c.o` and `zig ld -r b.o a.o -o
d.o`. In both cases, `c.o` and `d.o` should produce valid object
files which was not the case before this patch.
 2024-10-29 17:27:42 -07:00
Jakub Konka 56996a2809 link/Coff: simplify file structure by collapsing all files into Coff.zig (#21761) 
* coff: collapse Coff/lld.zig logic into Coff.zig

* coff: rename std.coff uses to coff_util

* coff: rename self to coff for *Coff references

* coff: collapse Coff/Atom.zig logic into Coff.zig

* coff: collapse Coff/Relocation.zig logic into Coff.zig

* coff: collapse Coff/ImportTable.zig logic into Coff.zig

* coff: remove unused Coff/Object.zig

* link/Coff: fix rebase gone wrong
 2024-10-24 13:50:02 +00:00
Jakub Konka 7e530c13b3 macho: create dummy atom of size 0 marking end of a section 
Some compilers such as Go reference the end of a section (addr + size)
which cannot be contained in any non-zero atom (since then this atom
would exceed section boundaries). In order to facilitate this behaviour,
we create a dummy zero-sized atom at section end (addr + size).
 2024-10-12 02:53:15 -07:00
Jakub Konka 33401ff3bb test/link/macho: test reporting undefined special symbols 2024-10-09 21:39:45 +02:00
Jakub Konka d43b0cb31f macho: fix a typo in InternalObject.addObjcMethnameSection 2024-10-09 21:39:45 +02:00
Jakub Konka 90aa68cbfc macho: report special symbols if undefined 
Special symbols include explictly force undefined symbols passed via -u
flag, missing entry point symbol, missing 'dyld_stub_binder' symbol, or
missing '_objc_msgsend' symbol.
 2024-10-09 21:39:44 +02:00
Jakub Konka 73c3b9b8ab elf: revert growing atoms in Dwarf.resize for standard alloc 2024-10-09 12:38:53 -07:00
Jakub Konka e9d819a29e elf: clean up how we create un-allocated sections 2024-10-09 12:38:53 -07:00
Jakub Konka e448fb9601 elf: change how we manage debug atoms in Dwarf linker 2024-10-09 12:38:53 -07:00
Jakub Konka c92c72d08c elf: do not create atoms for section symbols that do not require it 2024-10-09 12:38:53 -07:00
Jakub Konka ef7bac4aa5 elf: move setting section size back to Elf.growSection 2024-10-09 12:38:53 -07:00
Jakub Konka 3d315f45d8 elf: drastically simplify extracting section size logic 2024-10-09 12:38:53 -07:00
Jakub Konka 0e5cd112ef elf: clear dynamic relocs before resolving relocs in atoms 
When resolving and writing atoms to file, we may add dynamic relocs
to the output buffer so clear the buffers before that happens.
 2024-10-09 12:38:53 -07:00
Jakub Konka cf2e462d91 elf: add some extra logging for created dynamic relocs 2024-10-09 12:38:48 -07:00
Jakub Konka 133aa709b0 elf: do not panic if we already have create a PLT entry for a symbol 2024-10-09 12:38:11 -07:00
Jakub Konka 906cf48e14 elf: fix creation of synthetic sections 2024-10-09 12:38:11 -07:00
Jakub Konka 887f9a29f3 elf: combine growAllocSection and growNonAllocSection into growSection 2024-10-09 12:38:11 -07:00
Jakub Konka 0aa24ac2e3 elf: move sections in segments that need moving only 2024-10-09 12:38:11 -07:00
Jakub Konka 9a15c3e1a1 elf: mark objects as dirty/not-dirty 
This way we can track if we need to redo the object parsing or not.
 2024-10-09 12:38:09 -07:00
Jakub Konka 4604577ae1 elf: use arena for incremental cache 2024-10-09 12:31:04 -07:00
Jakub Konka bd5fc899db elf: do not re-allocate AtomLists unless dirtied 2024-10-09 12:27:30 -07:00
Jakub Konka bae3dbffdf elf: clear dynamic relocs before repopulating 2024-10-09 12:27:30 -07:00
Jakub Konka bc7e0342b5 elf: do not re-populate synthetic sections when updating 2024-10-09 12:27:30 -07:00
Jakub Konka 7fead5d6dd elf: track atoms within AtomList with array hash map 2024-10-09 12:27:30 -07:00
Jakub Konka 69ce7f0e08 Merge pull request #21573 from alexrp/elf-header 
Some additions to `std.elf` addressing #19830, plus some zld improvements
 2024-10-03 15:19:58 +02:00
Jakub Konka 777e722b06 macho: increase pre-allocated vmsize for __TEXT_ZIG segment 2024-09-28 11:59:51 -07:00
Jakub Konka 1714b74edf incr-check: actually handle end message for a compiler update 2024-09-25 17:54:50 +02:00
Jakub Konka 1c2048ebcc incr-check: add --debug-link flag for verbose linker logging 2024-09-25 17:54:50 +02:00
Jakub Konka 50074a835a elf: remove unused code 2024-09-25 17:54:50 +02:00
Jakub Konka 10c68d05db elf: change how we create new program headers 
We do not want to create additional ones per update that are duplicates
of existing ones.
 2024-09-25 17:54:50 +02:00
Jakub Konka 992c6c3f68 elf: reset output symtab contexts before re-updating 2024-09-25 17:54:50 +02:00
Jakub Konka 82cf762b02 elf: reset (merge) sections sizes before updating 2024-09-25 17:54:50 +02:00
Jakub Konka db3db1150e elf: do not re-create special program headers if already created 2024-09-25 17:54:50 +02:00
Jakub Konka 62c282ba46 elf: do not re-create synthetic sections if already created 2024-09-25 17:54:50 +02:00
Jakub Konka 8c232922bd Merge pull request #21493 from ziglang/elf-fixes 
elf: misc fixes
 2024-09-23 10:58:02 +02:00
Jakub Konka e0acf43248 elf: always override existing __start/__stop symbols 2024-09-23 07:06:47 +02:00
Jakub Konka 7c2abff1e1 elf: only allocate __dso_handle symbol if not found in any object 2024-09-23 07:06:41 +02:00
Jakub Konka 6929a5f440 elf: remove dead code 2024-09-23 06:59:03 +02:00
Jakub Konka f4c4ca4b4c elf: fix condition for skipping symbols if atom is dead 
Skipping the symbols too early when resolving would end up in the
linker not deduping CIEs fully.
 2024-09-23 06:56:36 +02:00
Jakub Konka 7e31804870 Merge pull request #21305 from ziglang/elf-incr 
elf: redo how we allocate atoms extracted from input relocatable object files
 2024-09-04 21:56:45 +02:00
Jakub Konka e1d5bb365b elf: fix 32bit build 2024-09-04 15:55:38 +02:00
Jakub Konka 516955dbdb elf: add AtomList.zig to CMakeLists.txt 2024-09-04 13:45:16 +02:00
Jakub Konka b6caab63cb elf: actually commit AtomList.zig 2024-09-04 13:44:06 +02:00
Jakub Konka f3d527c082 elf: migrate thunks to the new mechanism (AtomList) 2024-09-04 13:34:26 +02:00
Jakub Konka d302a1068e elf: rename SectionChunk into AtomList and store as part of Section 2024-09-04 13:34:26 +02:00
Jakub Konka 64ad6eff16 elf: create back/forward links for atoms within section chunks 2024-09-04 13:34:26 +02:00
Jakub Konka 6ec8b15918 elf: fix emitting static lib when ZigObject is present 2024-09-04 13:34:26 +02:00
Jakub Konka 8c76a61ef5 test/link/elf: test --gc-sections on Zig input with LLVM too 2024-09-04 13:34:26 +02:00
Jakub Konka 801f038c2c elf: do not pad placeholders coming from input object files 
This is currently not entirely accurate since no padding will affect
the last-most atom of ZigObject that should be padded.
 2024-09-04 13:34:26 +02:00
Jakub Konka eeec50d251 elf: misc .eh_frame management fixes 2024-09-04 13:34:26 +02:00
Jakub Konka fca92fd7c0 elf: copy existing data when allocating other alloc sections in relocatable mode 2024-09-04 13:34:26 +02:00
Jakub Konka 5cdad186fe elf: do not create .eh_frame section if ZigObject already did so in relocatable mode 2024-09-04 13:34:26 +02:00
Jakub Konka 88e0d49feb elf: init rela sections in a separate pass for ZigObject 2024-09-04 13:34:26 +02:00
Jakub Konka 2ef3e30e2d elf: emit relocs for self-hosted generated .eh_frame section 2024-09-04 13:34:26 +02:00
Jakub Konka 5cb51c10de elf: fix relocatable mode 2024-09-04 13:34:26 +02:00
Jakub Konka 6b53dc9461 elf: actually allocate atoms within each section chunk 2024-09-04 13:34:26 +02:00
Jakub Konka 6a50a0f0ed elf: update osec index for section chunks in objects 2024-09-04 13:34:26 +02:00
Jakub Konka f87a7251a3 elf: actually write allocated atoms in object files 2024-09-04 13:34:26 +02:00
Jakub Konka 874ef6308e elf: do not create .eh_frame section if ZigObject already did so 2024-09-04 13:34:26 +02:00
Jakub Konka 45e46f0fb9 elf: allocate atom chunks using allocateChunk mechanics in objects 2024-09-04 13:34:25 +02:00
Jakub Konka 1ef96f05eb elf: introduce SectionChunk - a container of atoms per object file 2024-09-04 13:34:25 +02:00
Jakub Konka 6ec5df3898 elf: allocate .tdata and .tbss using allocateAtom mechanics 2024-09-04 13:34:25 +02:00
Jakub Konka 3e100c5dab dwarf: make Section.off a function 2024-09-04 13:34:25 +02:00
Jakub Konka da60159d85 elf+dwarf: refer sections via section symbols 2024-09-04 13:34:25 +02:00
Jakub Konka acb91f4b30 elf: fix emitting correct .rela. sections in -r mode 2024-09-04 13:34:25 +02:00
Jakub Konka 25fa092bb1 elf: fix a typo in setting ZigObject.data_relro_index 2024-09-04 13:34:25 +02:00
Jakub Konka bc39bddd5f elf: remove isDebugSection helper 2024-09-04 13:34:25 +02:00
Jakub Konka ef6ee90ff8 elf: remove now unused number_of_zig_segments 2024-09-04 13:34:25 +02:00
Jakub Konka 2d0f4fc9c0 elf: allocate .text in ZigObject similarly to .eh_frame 2024-09-04 13:34:25 +02:00
Jakub Konka 848535535d elf: allocate .data.rel.ro and .rodata in ZigObject similarly to .eh_frame 2024-09-04 13:34:25 +02:00
Jakub Konka 0b92404ddf elf: allocate .data in ZigObject similarly to .eh_frame 2024-09-04 13:34:25 +02:00
Jakub Konka 37a1f0e7f2 elf: allocate .bss in ZigObject similarly to .eh_frame 2024-09-04 13:34:25 +02:00
Jakub Konka 8f1ce3c85b elf: shuffle some stages to make it clear what needs what 2024-09-04 13:34:25 +02:00
Jakub Konka d32af9ea2a elf: move initOutputSection into Elf from Object 2024-09-04 13:34:25 +02:00
Jakub Konka b44dd599ad elf: split Atom.allocate into Atom-independent parts 2024-09-04 13:34:25 +02:00
Jakub Konka aaca4ff74d Merge pull request #21254 from jacobly0/fix-dwarf 
Dwarf: fix issues with emitted debug info
 2024-08-30 19:07:36 +02:00
Jakub Konka 1254509d78 elf: make Atom.allocate and related ZigObject-independent 2024-08-26 22:19:51 +02:00
Jakub Konka 20240e9cd5 elf: store atom refs for rela sections until we can do better 2024-08-25 10:20:15 +02:00
Jakub Konka 1af0f4cd00 elf: fix setting sh_info and sh_link for manually managed rela sections 2024-08-25 10:20:15 +02:00
Jakub Konka 7173ea1a15 elf: simplify output section symbol tracking 2024-08-25 10:20:15 +02:00
Jakub Konka 95c30fb486 elf: fix shdr-to-phdr links 2024-08-25 10:20:15 +02:00
Jakub Konka a9d3885ac7 elf: streamline sections container 2024-08-25 10:20:14 +02:00
Jakub Konka a6bf762a8b elf: finally move initMetadata into ZigObject.init 2024-08-25 10:20:14 +02:00
Jakub Konka 7cd1c882c9 Merge pull request #21160 from ziglang/link-thunks-test 2024-08-22 06:59:45 +02:00
Jakub Konka fa79f53f92 test/macho: simplify testing range extension thunks 2024-08-22 00:36:47 +02:00
Jakub Konka cbb8093455 macho: emit local symbols for thunks 2024-08-22 00:34:58 +02:00
Jakub Konka ca417e1e32 link/elf: simplify how we test thunks 2024-08-21 23:05:28 +02:00
Jakub Konka 8fc15f188c Merge pull request #21145 from ziglang/elf-dwarf-relocs 
elf+zigobject: emit relocs for debug sections
 2024-08-21 14:51:10 +02:00
Jakub Konka e79ac14ef3 elf: refactor tracking debug section sizes 2024-08-21 10:28:31 +02:00
Jakub Konka b17bbf9e6c elf: fixes after rebase 2024-08-21 01:43:21 -04:00
Jakub Konka 6c731be3a1 elf: allow for concatenating atoms to merge sections 2024-08-21 01:43:21 -04:00
Jakub Konka b2fad5c58b test/debugger: test emitting relocs by ELF linker 2024-08-21 01:43:21 -04:00
Jakub Konka 6a86a1041c elf: remove obsolete call to Dwarf.resolveRelocs 2024-08-21 01:43:21 -04:00
Jakub Konka fe6dfd5090 elf: fix emitting cross-section relocs for .debug* sections 2024-08-21 01:43:21 -04:00