Commit Graph

11 Commits

Author SHA1 Message Date
Sam Clegg 47e2b6b29e [WebAssembly] Don't error when --undefined symbols are not found
This matches the behavior of the ELF linker where -u/--undefined
means symbols will get pulled in from archives but won't result
in link error if they are missing.

Also, don't actually great symbol table entries for the undefined
symbols, again matching more closely the ELF linker.

This also results in simplification of the code.

Differential Revision: https://reviews.llvm.org/D50279

llvm-svn: 338938
2018-08-04 00:04:06 +00:00
Chris Jackson 1a721eb3a2 [lld] Make tests calling llvm-ar more robust
Some lit tests that call llvm-ar use the 'r' flag. If the target archive
already exists and is in a corrupt state, this can cause the test to fail. We
have added 'rm -f' calls before the llvm-ar calls to increase the
robustness of the tests.

Differential revision: https://reviews.llvm.org/D49184

llvm-svn: 338705
2018-08-02 11:33:54 +00:00
Sam Clegg e16a7d3faf [WebAssembly] Minor cleanup to test inputs. NFC.
Update load-undefined.test such that it doesn't rely on
ret32 and ret64 having default visibility.

Split out from: https://reviews.llvm.org/D48394

Differential Revision: https://reviews.llvm.org/D48403

llvm-svn: 335187
2018-06-20 22:52:33 +00:00
Sam Clegg 65d6380cd6 [WebAssembly] Allow signautre of entry function to be flexible
Since we a no longer using this function for the wasm start
section we don't actually care what its signature is.

Differential Revision: https://reviews.llvm.org/D46594

llvm-svn: 332308
2018-05-14 23:01:16 +00:00
Sam Clegg 752494bfe3 [WebAssembly] Check function signatures by default
But only produce a warning (for now) unless --fatal-warnings
is passed.

Differential Revision: https://reviews.llvm.org/D46484

llvm-svn: 331574
2018-05-05 01:23:07 +00:00
Nicholas Wilson 5639da89a9 [WebAssembly] Reorder synthetic functions to come first
This matches the existing ordering that's been there for globals
for a while (__stack_pointer coming first).

Differential Revision: https://reviews.llvm.org/D44333

llvm-svn: 327286
2018-03-12 15:44:07 +00:00
Nicholas Wilson 4cdf5b8fa0 [WebAssembly] Reorder exports to match symbol table order
This fixes a TODO introduced in rLLD325861.

Differential Revision: https://reviews.llvm.org/D43877

llvm-svn: 326424
2018-03-01 09:38:02 +00:00
Rui Ueyama f05124e60c Use wasm-ld instead of "lld -flavor wasm".
Invoking lld as ld.lld, ld.ld64, lld-link or wasm-ld is preferred
than invoking lld as lld and pass an -flavor option. We have "lld"
file mostly for historical reasons.

Differential Revision: https://reviews.llvm.org/D43407

llvm-svn: 325405
2018-02-16 22:58:02 +00:00
Sam Clegg 37a4a8a4b1 [WebAssembly] Add __data_end link-sythentic symbol.
This is similar to _end (See https://linux.die.net/man/3/edata for more)
but using our own unique name since our use cases will most likely be
different and we want to keep our options open WRT to memory layout.

This change will allow is to remove the DataSize from the linking
metadata section which is currently being used by emscripten to derive
the end of the data.

Differential Revision: https://reviews.llvm.org/D42867

llvm-svn: 324443
2018-02-07 03:04:53 +00:00
Sam Clegg 279c850cf2 [WebAssembly] Fix signature mismatches in test code
Pass --check-signatures to test executions of lld and
fix resulting errors.

Differential Revision: https://reviews.llvm.org/D42661

llvm-svn: 324042
2018-02-02 00:30:03 +00:00
Sam Clegg 5489b9f1cf [WebAssembly] Reduce redundancy in tests
Add a simple start entry point input file and have the tests
reference that rather than duplicating these.

This allows more tests to be pure `.test` files rather than
`.ll`.

Differential Revision: https://reviews.llvm.org/D42662

llvm-svn: 323838
2018-01-31 00:13:26 +00:00