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3 Commits

Author SHA1 Message Date
Sam Clegg 9c07f94a1f [WebAssembly] Expose the offset of each data segment 
Summary:
This allows tools like lld that process relocations
to apply data relocation correctly. This information
is required because relocation are stored as section
offset.

Subscribers: jfb, dschuff, jgravelle-google, aheejin

Differential Revision: https://reviews.llvm.org/D35234

llvm-svn: 307741
 2017-07-12 00:24:54 +00:00
Sam Clegg 9e1ade93a8 [WebAssembly] Add data size and alignement to linking section 
The overal size of the data section (including BSS)
is otherwise not included in the wasm binary.

Differential Revision: https://reviews.llvm.org/D34657

llvm-svn: 306459
 2017-06-27 20:27:59 +00:00
Sam Clegg 1c154a6107 [WebAssembly] MC: Include unnamed data when writing wasm files 
Also, include global entries for all data symbols, not
just external ones, since these are referenced by the
relocation records.

Add a test case that includes unnamed data.

Differential Revision: https://reviews.llvm.org/D33079

llvm-svn: 303915
 2017-05-25 21:08:07 +00:00