Commit Graph

70 Commits

Author SHA1 Message Date
Sean Silva 0559d9e4d4 Remove unused parameter.
Not sure why we weren't catching this with -Wunused-parameter...

Spotted by inspection.

llvm-svn: 184271
2013-06-19 01:10:11 +00:00
Sean Silva 8432251a9f [yaml2obj][ELF] Support ELFOSABI_* enum.
llvm-svn: 184268
2013-06-19 00:55:28 +00:00
Sean Silva 8870a7e658 There is no ELF ABI version enum.
llvm-svn: 184267
2013-06-19 00:55:23 +00:00
Sean Silva bba8559767 [yaml2obj][ELF] Support st_info through `Binding` and `Type` YAML keys.
llvm-svn: 184263
2013-06-19 00:11:59 +00:00
Sean Silva bdf1986176 [yaml2obj][ELF] Don't monkeypatch the YAML sections.
Previously, we would monkeypatch the vector of YAML::Section's in order
to ensure that the SHT_NULL entry is present. Now we just add it
unconditionally.

The proliferation of small numerical adjustments is beginning to
frighten me, but I can't think of a way having a single point of truth
for them without introducing a whole new layer  of data structures (i.e.
lots of code and complexity) between the YAML and binary ELF formats.

llvm-svn: 184260
2013-06-18 23:37:23 +00:00
Sean Silva abe18db268 [yaml2obj][ELF] Ensure STN_UNDEF entry is present.
llvm-svn: 184258
2013-06-18 23:19:17 +00:00
Sean Silva 6b08388940 [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 c3131926c0 [yaml2obj][ELF] Add dummy .strtab section.
This will be needed later for holding symbol names, due to the libObject
issue mentioned in the commit message of r184161.

llvm-svn: 184242
2013-06-18 21:37:50 +00:00
Sean Silva 85d3eeb6e7 [yaml2obj][ELF] Factor out string table section creation.
llvm-svn: 184162
2013-06-18 01:11:27 +00:00
Sean Silva fde4ab0fc8 [yaml2obj][ELF] Refer specifically to the section header string table.
A bug in libObject will cause it to assert() if a symbol table's string
table and the section header string table are the same section, so we
need to ensure that we emit two different string tables (among other
things). The problematic code is the hardcoded usage of ".strtab"
(`dot_strtab_sec`) for looking up symbol names in
ELFObjectFile<ELFT>::getSymbolName.

I discussed this with Michael, and he has some local improvements to the
ELF code in libObject that, among other things, should fix our handling
of this scenario.

llvm-svn: 184161
2013-06-18 01:11:24 +00:00
Sean Silva f62a6005f3 [yaml2obj][ELF] Ensure more fields are zero'd.
I was spotting garbage in the output. I'd like to just zero the entire
ELFYAML::Section to be sure, but it contains non-POD types. (I'm also
trying to avoid bloating the ELFYAML::Foo classes with a bunch of
constructor code).

No test, since this is by its very nature unpredictable. I'm pretty sure
that one of the sanitizers would catch it immediately though.

llvm-svn: 184160
2013-06-18 01:11:21 +00:00
Sean Silva 415d93fab5 [yaml2obj][ELF] Exit with error status on error.
llvm-svn: 184115
2013-06-17 20:14:59 +00:00
Sean Silva 2a74f708bc [yaml2obj] Move some classes into anonymous namespaces.
llvm-svn: 184025
2013-06-15 00:31:46 +00:00
Sean Silva a6423eb8be [yaml2obj] Add support for sh_link via `Link` key.
llvm-svn: 184022
2013-06-15 00:25:26 +00:00
Sean Silva 0a409cf04a [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 46dffffb39 [yaml2obj] Add support for specifying raw section content.
llvm-svn: 183955
2013-06-13 22:20:01 +00:00
Sean Silva f4bfcedfe5 [yaml2obj] Add sh_addr via `Address` key.
llvm-svn: 183954
2013-06-13 22:19:54 +00:00
Sean Silva 3820593160 [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 864dd75093 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 f99309cb08 [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