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Summary:
This change allows yaml input to control the order of implicitly added sections
(`.symtab`, `.strtab`, `.shstrtab`). The order is controlled by adding a
placeholder section of the given name to the Sections field.
This change is to support changes in D39582, where it is desirable to control
the location of the `.dynsym` section.
Reviewers: compnerd, jakehehrlich
Reviewed By: jakehehrlich
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39749
llvm-svn: 317622
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Sometimes program headers have larger alignments than any of the
sections they contain. Currently yaml2obj can't produce such files. A
bug recently appeared in llvm-objcopy that failed in such a case. I'd
like to be able to add tests to llvm-objcopy for such cases.
This change adds an optional alignment parameter to program headers that
will be used instead of calculating the alignment.
Differential Revision: https://reviews.llvm.org/D39130
llvm-svn: 317139
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Right now Symbols must be either undefined or defined in a specific
section. Some symbols have section indexes like SHN_ABS however. This
change adds support for outputting symbols that have such section
indexes.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D37391
llvm-svn: 312745
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Some kinds of relocations do not have symbols, like R_X86_64_RELATIVE
for instance. I would like to test this case in D36554 but currently
can't because symbols are required by yaml2obj. The other option is
using the empty symbol but that doesn't seem quite right to me.
This change makes the Symbol field of Relocation optional and in the
case where the user does not specify a symbol name the Symbol index is 0.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D37276
llvm-svn: 312192
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This change adds basic support for program headers.
I need to do some testing which requires generating program headers but
I can't use ld.lld or clang to produce programs that have headers. I'd
also like to test some strange things that those programs may never
produce.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D35276
llvm-svn: 308520
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Patch by Sam Clegg!
Differential Revision: https://reviews.llvm.org/D31351
llvm-svn: 299546
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Summary:
These tests were not being run because the yaml extension
wasn't be picked up by lit.
This change also fixes the tests which themselves were broken.
Patch By: Sam Clegg
Reviewers: beanz
Reviewed By: beanz
Subscribers: fhahn
Differential Revision: https://reviews.llvm.org/D31436
llvm-svn: 299088
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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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