llvm-project

Commit Graph

Author	SHA1	Message	Date
Michael J. Spencer	4355bb9d22	[Core] Add type and size to SharedLibraryAtom. llvm-svn: 191466	2013-09-26 22:08:43 +00:00
Rui Ueyama	e5416ec2d2	Add a fallback mechanism for undefined atom. In COFF, an undefined symbol can have up to one alternative name. If a symbol is resolved by its regular name, then it's linked normally. If a symbol is not found in any input files, all references to the regular name are resolved using the alternative name. If the alternative name is not found, it's a link error. This mechanism is called "weak externals". To support this mechanism, I added a new member function fallback() to undefined atom. If an undefined atom has the second name, fallback() returns a new undefined atom that should be used instead of the original one to resolve undefines. If it does not have the second name, the function returns nullptr. Differential Revision: http://llvm-reviews.chandlerc.com/D1550 llvm-svn: 190625	2013-09-12 19:14:05 +00:00
Shankar Easwaran	df4f12bb65	[lld][test] organize test directory. No change in functionality * Renames few tests which had extension objtxt to test * created core directory that contains all the core tests llvm-svn: 189720	2013-08-31 05:59:52 +00:00

Author

SHA1

Message

Date

Michael J. Spencer

4355bb9d22

[Core] Add type and size to SharedLibraryAtom.

llvm-svn: 191466

2013-09-26 22:08:43 +00:00

Rui Ueyama

e5416ec2d2

Add a fallback mechanism for undefined atom.

In COFF, an undefined symbol can have up to one alternative name. If a symbol
is resolved by its regular name, then it's linked normally. If a symbol is not
found in any input files, all references to the regular name are resolved using
the alternative name. If the alternative name is not found, it's a link error.
This mechanism is called "weak externals".

To support this mechanism, I added a new member function fallback() to undefined
atom. If an undefined atom has the second name, fallback() returns a new undefined
atom that should be used instead of the original one to resolve undefines. If it
does not have the second name, the function returns nullptr.

Differential Revision: http://llvm-reviews.chandlerc.com/D1550

llvm-svn: 190625

2013-09-12 19:14:05 +00:00

Shankar Easwaran

df4f12bb65

[lld][test] organize test directory. No change in functionality

* Renames few tests which had extension objtxt to test
* created core directory that contains all the core tests

llvm-svn: 189720

2013-08-31 05:59:52 +00:00

3 Commits