Commit Graph

9 Commits

Author SHA1 Message Date
Sam Clegg
9310297438 [WebAssembly] Add explicit symbol table
This change modified lld to in response the llvm change which
moved to a more explicit symbol table in the object format.

Based on patches by Nicholas Wilson:
 1. https://reviews.llvm.org/D41955
 2. https://reviews.llvm.org/D42585

The primary difference that we see in the test output is that
for relocatable (-r) output we now have symbol table which
replaces exports/imports and globals.

See: https://github.com/WebAssembly/tool-conventions/issues/38
Differential Revision: https://reviews.llvm.org/D43264

llvm-svn: 325861
2018-02-23 05:08:53 +00:00
Sam Clegg
3141ddc58d Consistent (non) use of empty lines in include blocks
The profailing style in lld seem to be to not include such empty lines.
Clang-tidy/clang-format seem to handle this just fine.

Differential Revision: https://reviews.llvm.org/D43528

llvm-svn: 325629
2018-02-20 21:53:18 +00:00
Rui Ueyama
bf450d905d Do not create a temporary data structure for relocations.
This patch removes `OutRelocations` vector from the InputChunk and
directly consume `Relocations` vector instead. This should make the linker
faster because we don't create a temporary data structure, and it matches
the lld's design principle that we don't create temporary data structures
for object files but instead directly consume mmap'ed data whenever possible.

Differential Revision: https://reviews.llvm.org/D43491

llvm-svn: 325549
2018-02-20 04:26:26 +00:00
Rui Ueyama
1184253891 Refactor wasm/WriterUtil.{cpp,h}.
Summary:
 - Makes code more in line with LLVM style (e.g. const char * -> StringRef)
 - Do not use formatv since we can construct message just by `+`
 - Replace some odd types such as `const StringRef` with more common type
 - Do not use default arguments if they are not necessary

Reviewers: sbc100

Subscribers: jfb, aheejin, llvm-commits, sunfish

Differential Revision: https://reviews.llvm.org/D43403

llvm-svn: 325383
2018-02-16 20:38:00 +00:00
Rui Ueyama
7b9ed65666 Style fix. NFC.
llvm-svn: 325377
2018-02-16 19:53:29 +00:00
Sam Clegg
1a9b7b911d [WebAssembly] Update to match llvm change rL323901. NFC
See: https://reviews.llvm.org/rL323901

Patch by Nicholas Wilson!

Differential Revision: https://reviews.llvm.org/D42751

llvm-svn: 323903
2018-01-31 19:54:34 +00:00
Sam Clegg
b862159683 [WebAssembly] Allow function signature checking at link time
This change allows checking of function signatures but
does not yes enable it by default.  In this mode, linking
two objects that were compiled with a different signatures
for the same function will produce a link error.

New options for enabling and disabling this feature have been
added: (--check-signatures/--no-check-signatures).

Differential Revision: https://reviews.llvm.org/D40371

llvm-svn: 319396
2017-11-30 01:40:08 +00:00
Rui Ueyama
e48f223ed6 Remove else or break after fatal. NFC.
fatal() does not return, so we don't need `else` or `break` after a call
of fatal.

llvm-svn: 319355
2017-11-29 20:45:58 +00:00
Sam Clegg
c94d393ad5 [WebAssembly] Initial wasm linker implementation
This linker backend is still a work in progress but is
enough to link simple programs including linking against
library archives.

Differential Revision: https://reviews.llvm.org/D34851

llvm-svn: 318539
2017-11-17 18:14:09 +00:00