This creates .init_array/.fini_array section for X86_64 ELF
targets and executes init/fini functions specified by the
-init/-fini options respectively.
llvm-svn: 189719
This adds an API to the LinkingContext for flavors to add Internal files
containing atoms that need to appear in the YAML output as well, when -emit-yaml
switch is used.
Flavors can add more internal files for other options that are needed.
llvm-svn: 189718
We added layout edges to the head atoms in grouped sections. That was wrong,
because the head atom needs to be followed by the other atoms in the *same*
section, not by the other section contents. With this patch, layout edges are
added from tail atom, which is the last atom in a section, to head atom.
llvm-svn: 189573
Because of a bug, the last atom of each section contained a garbage at the
end of its data. In most cases the garbage is harmless but it could have cause
SEGV.
llvm-svn: 189572
We were creating undefined atoms for common symbols by mistake. That did not
lead to a link failure, for undefined atoms would be resolved by common symbols
in the same file, but that's a waste of resource.
llvm-svn: 189534
We scanned the symbol table twice; first to gather all regular symbols, and
second to process aux symbols. That's a bit inefficient and complicated. We
can instead cache aux symbols in the first pass, to eliminate the need of the
second pass.
llvm-svn: 189525
With this patch the entry symbol is treated as an undefined symbol, to force
the resolver to resolve the entry symbol.
Differential Revision: http://llvm-reviews.chandlerc.com/D1524
llvm-svn: 189307
The cleanup includes :-
* Rename ambiguous Header class to ELFHeader
* Convert Chunk contentype and kind to be a enumerated class
* Remove functions that are not being used, avoids future confusion
llvm-svn: 189209
This change processes fini_array section in addition to processing
init_array sections. This also makes functions registered at compile
time for initialization and finalization to be run during execution
llvm-svn: 189196
This completes the subsystem name parsing to support the identifiers that the
Microsoft link.exe linker supports. "windows" and "console" are left as the
first items as they are the expected common paths.
Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 189181
The debug flag being checked for seems to be controlled by whether the
build is asserts/non-asserts rather than debug/non-debug. Mostly these
correlate, but not necessarily.
As far as I can tell with various combinations of debug/assetions this
change makes no difference on autotools builds, but fixes a check-all
failure with CMake.
llvm-svn: 189147
There may be relocations that may be pointing to the section
even if the section sizes are 0. We shouldnot ignore them
for that regard.
llvm-svn: 189139
typeTLV content type is used by Darwin to represent thread local
storage. A new contentType has to be made to represent ELF
thread local storage data. These have been set to
- typeThreadZeroFill (represents TBSS storage)
- typeThreadData (represents TDATA storage)
llvm-svn: 189137
BSS atoms dont take any file space in the Input file. They are associated
with a contentType(typeZeroFill). Similiar zero fill types also exist which
have the same meaning in terms of occupying file space in the Input.
These atoms have to be handled seperately when writing to the
lld's intermediate file or the lld test infrastructure.
Also adds a test.
llvm-svn: 189136
Previously, the CMake build would look for llvm-tblgen to determine
if a directory is an LLVM build or install directory. Since we don't
want to include llvm-tblgen in the install, look for llvm-config instead,
and use that to find llvm-tblgen.
(This is the lld equivalent of Clang r189127.)
llvm-svn: 189128
This used to be handled automagically by the option parsing library,
but after LLVM r188314, we should handle it ourselves.
No functionality change, but adds a test.
llvm-svn: 188318
Shankar Easwaran