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Commit Graph

15 Commits

Author SHA1 Message Date
Sean Silva
726b33f897 [yaml2obj][ELF] Make symbol table top-level key.
Although in reality the symbol table in ELF resides in a section, the
standard requires that there be no more than one SHT_SYMTAB. To enforce
this constraint, it is cleaner to group all the symbols under a
top-level `Symbols` key on the object file.

llvm-svn: 184627
2013-06-22 01:38:00 +00:00
Sean Silva
891dc92008 [yaml2obj][ELF] Don't explicitly set Binding with STB_*
Instead, just have 3 sub-lists, one for each of
{STB_LOCAL,STB_GLOBAL,STB_WEAK}.

This allows us to be a lot more explicit w.r.t. the symbol ordering in
the object file, because if we allowed explicitly setting the STB_*
`Binding` key for the symbol, then we might have ended up having to
shuffle STB_LOCAL symbols to the front of the list, which is likely to
cause confusion and potential for error.

Also, this new approach is simpler ;)

llvm-svn: 184506
2013-06-21 00:27:50 +00:00
Sean Silva
873dafebc7 [yaml2obj][ELF] Add support for st_value and st_size.
After this patch, the ELF file produced by
`yaml2obj-elf-symbol-basic.yaml`, when linked and executed on x86_64
(under SysV ABI, obviously; I tested on Linux), produces a working
executable that goes into an infinite loop!

llvm-svn: 184469
2013-06-20 20:59:47 +00:00
Sean Silva
b8315826cf [yaml2obj][ELF] Allow symbols to reference sections.
llvm-svn: 184468
2013-06-20 20:59:41 +00:00
Sean Silva
a39ac0fdeb [yaml2obj][ELF] Support ELFOSABI_* enum.
llvm-svn: 184268
2013-06-19 00:55:28 +00:00
Sean Silva
c7a5f8cb18 [yaml2obj][ELF] Support st_info through Binding and Type YAML keys.
llvm-svn: 184263
2013-06-19 00:11:59 +00:00
Sean Silva
beed0c8948 [yaml2obj][ELF] Rudimentary symbol table support.
Currently, we only output the name.

llvm-svn: 184255
2013-06-18 23:14:03 +00:00
Sean Silva
7dafd05c2e [yaml2obj] Add support for sh_link via Link key.
llvm-svn: 184022
2013-06-15 00:25:26 +00:00
Sean Silva
221b8835d3 [yaml2obj] Add support for sh_addralign via AddressAlign key.
For consistency, change the address in the test case from 0xDEADBEEF to
0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment.

llvm-svn: 183962
2013-06-14 00:38:02 +00:00
Sean Silva
51f6318c1e [yaml2obj] Add support for specifying raw section content.
llvm-svn: 183955
2013-06-13 22:20:01 +00:00
Sean Silva
a31cf66d83 [yaml2obj] Add sh_addr via Address key.
llvm-svn: 183954
2013-06-13 22:19:54 +00:00
Sean Silva
c72d9620ea [yaml2obj] Initial ELF section support.
The current functionality is extremely basic and a bit rough around the
edges, but it will flesh out in future commits.

llvm-svn: 183953
2013-06-13 22:19:48 +00:00
Sean Silva
0145eeb66d Fix dubious type name similar to member name.
Should bring bots back to life.

llvm-svn: 183715
2013-06-11 00:13:52 +00:00
Sean Silva
f1bbb8885a Fix spurious semicolons.
Apparently these macros have semicolons inside of them already.

llvm-svn: 183712
2013-06-10 23:48:38 +00:00
Sean Silva
141d676063 [yaml2obj] Initial ELF support.
Currently, only emitting the ELF header is supported (no sections or
segments).

The ELFYAML code organization is broadly similar to the COFFYAML code.

llvm-svn: 183711
2013-06-10 23:44:15 +00:00