Commit Graph

108 Commits

Author SHA1 Message Date
Sam Clegg d99f6078e4 [WebAssembly] MC: Fix value of R_WEBASSEMBLY_TABLE_INDEX relocations
Previously we were writing the value function index space
value but for these types of relocations we want to be
writing the table element index space value.

Add a test case for these relocation types that fails
without this change.

Differential Revision: https://reviews.llvm.org/D33962

llvm-svn: 305253
2017-06-12 23:52:44 +00:00
Sam Clegg acd7d2b00b [WebAssembly] MC: Refactor relocation handling
The change cleans up and unifies the handling of relocation
entries in WasmObjectWriter.  Type index relocation no longer
need to be handled separately.

The only externally visible change should be that type
index relocations are no longer grouped at the end.

Differential Revision: https://reviews.llvm.org/D33918

llvm-svn: 304816
2017-06-06 19:15:05 +00:00
Sam Clegg c38e947e50 [WebAssembly] MC: Fix references to undefined externals in data section
Undefined externals don't need to have a size or an offset.
This was broken by r303915.  Added a test for this case.

This fixes the "Compile LLVM Torture (o)" step on the wasm
waterfall.

Differential Revision: https://reviews.llvm.org/D33803

llvm-svn: 304505
2017-06-02 01:05:24 +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
Sam Clegg a06de02889 [WebAssembly] Add size of section header to data relocation offsets.
Also, add test for data relocations and fix addend to
be signed.

Subscribers: jfb, dschuff

Differential Revision: https://reviews.llvm.org/D32513

llvm-svn: 301690
2017-04-28 21:22:38 +00:00
Sam Clegg ff0730b3fc [WebAssembly] Write initial memory in pages not bytes
Subscribers: jfb, dschuff

Differential Revision: https://reviews.llvm.org/D32660

llvm-svn: 301687
2017-04-28 21:12:09 +00:00
Sam Clegg 10545c9c24 [WebAssembly] Add some tests for wasm MC layer
Subscribers: jfb, dschuff

Differential Revision: https://reviews.llvm.org/D32558

llvm-svn: 301606
2017-04-28 00:36:36 +00:00
Dan Gohman 7ea5adfff4 [WebAssembly] Implement the wasm binary container header.
Also, update the version number to 0x1, which is what engines are now
expecting.

llvm-svn: 295860
2017-02-22 18:50:20 +00:00