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There are multiple yaml2obj-* tests in llvm/test/Object
folder. This is not correct place to have them and my intention
was to move them out to test\tools\yaml2obj folder. I reviewed
them, made some changes, and my comments are below.
For all tests I:
Added comments when needed.
Moved them from llvm/test/Object to yaml2obj tests.
Another changes performed:
1) yaml2obj-invalid.yaml. It was a test for an invalid YAML input.
I just moved it.
2) yaml2obj-coff-multi-doc.test/yaml2obj-elf-multi-doc.test:
these were a tests for testing --docnum=x functionality,
one was for COFF and one for ELF. I merged them into one.
3) yaml2obj-elf-bits-endian.test:
I removed its 4 YAML inputs (merged into the main test).
4) yaml2obj-readobj.test:
This file has a long history. It was added to check the
"parsing of header charactestics" initially. Then was used to test
how yaml2obj writes the relocations. Then was upgraded to check how
yaml2obj handle "-o" option. I think it should be heavily splitted
and refactored in a separate patch. For now I leaved it as is, but restyled
to reduce the changes in a follow-ups.
5) yaml2obj-elf-alignment.yaml: its intention was to check we
can set sh-addralign field. I moved, renamed (to elf-sh-addralign.yaml)
and updated this test.
6) yaml2obj-elf-file-headers.yaml: I removed it.
It's intention was to check that
yaml2obj handles OS/ABI and ELF type (e.g Relocatable).
We are testing this already, for example in D64800. We might want
to add a better (more complete) test, but keeping the existent test
does not have much sense I think.
7) yaml2obj-elf-file-headers-with-e_flags.yaml: I would describe its intention
as "testing MIPS e_flags". It is far from being complete and tests only
a few flags. I leaved it alone for now.
8) yaml2obj-elf-rel.yaml: its intention is to check the MIPS32 relocations.
We have a version for MIPS64 here: test\Object\Mips\elf-mips64-rel.yaml
Seems them both are incomplete. I leaved them alone for now.
9) yaml2obj-elf-rel-noref.yaml: was introduced to check the support of arm32
R_ARM_V4BX relocatiion. I leaved it alone for now.
10) yaml2obj-elf-section-basic.yaml: it just checked that we are able to recognise
trivial fields like section 'Name', 'Type', 'Flags' and others. All of our yaml2obj
tests are heavily using it. I just removed this test.
11) yaml2obj-elf-section-invalid-size.yaml: its intention was to check the
"Section size must be greater than or equal to the content size" error.
I moved this test to `tools\yaml2obj\section-size-content.yaml'
12) yaml2obj-elf-symbol-basic.yaml: its intention seems was to support declarations
of the symbols in yaml2obj. I removed it. We use this in almost each test we already have.
13) yaml2obj-elf-symbol-LocalGlobalWeak.yaml: its intention was to check that we can
declare different symbol bindings. I moved it to tools\yaml2obj\elf-symbol-binding.yaml.
14) yaml2obj-coff-invalid-alignment.test: check that error is reported for a too large coff
section alignment. Moved it to tools\yaml2obj\coff-invalid-alignment.test
15) yaml2obj-elf-symbol-visibility.yaml: tests ELF symbols visibility. I improved it and
moved to tools\yaml2obj\elf-symbol-visibility.yaml and tools\obj2yaml\elf-symbol-visibility.yaml
Differential revision: https://reviews.llvm.org/D65652
llvm-svn: 367988
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We use both -long-option and --long-option in tests. Switch to --long-option for consistency.
In the "llvm-readelf" mode, -long-option is discouraged as it conflicts with grouped short options and it is not accepted by GNU readelf.
While updating the tests, change llvm-readobj -s to llvm-readobj -S to reduce confusion ("s" is --section-headers in llvm-readobj but --symbols in llvm-readelf).
llvm-svn: 359649
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parsing/dumping.
Currently, YAML has the following syntax for describing the symbols:
Symbols:
Local:
LocalSymbol1:
...
LocalSymbol2:
...
...
Global:
GlobalSymbol1:
...
Weak:
...
GNUUnique:
I.e. symbols are grouped by their bindings. That is not very convenient,
because:
It does not allow to set a custom binding, what can be useful for producing
broken/special outputs for test cases. Adding a new binding would require to
change a syntax (what we observed when added GNUUnique recently).
It does not allow to change the order of the symbols in .symtab/.dynsym,
i.e. currently all Local symbols are placed first, then Global, Weak and GNUUnique
are following, but we are not able to change the order.
It is not consistent. Binding is just one of the properties of the symbol,
we do not group them by other properties.
It makes the code more complex that it can be. This patch shows it can be simplified
with the change performed.
The patch changes the syntax to just:
Symbols:
Symbol1:
...
Symbol2:
...
...
With that, we are able to work with the binding field just like with any other symbol property.
Differential revision: https://reviews.llvm.org/D60122
llvm-svn: 357595
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Summary:
Our YAML library's handling of tags isn't perfect, but it is good enough to get rid of the need for the --format argument to yaml2obj. This patch does exactly that.
Instead of requiring --format, it infers the format based on the tags found in the object file. The supported tags are:
!ELF
!COFF
!mach-o
!fat-mach-o
I have a corresponding patch that is quite large that fixes up all the in-tree test cases.
Reviewers: rafael, Bigcheese, compnerd, silvas
Subscribers: compnerd, llvm-commits
Differential Revision: http://reviews.llvm.org/D21711
llvm-svn: 273915
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Input YAML file might contain multiple object file definitions.
New option `-docnum` allows to specify an ordinal number (starting from 1)
of definition used for an object file generation.
Patch reviewed by Sean Silva.
llvm-svn: 209967
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