Commit Graph

8 Commits

Author SHA1 Message Date
George Rimar 20b6598c10 [ELF] - Remove VersionScriptParser class and move the members to ScriptParser
Patch removes VersionScriptParser class and moves the members to ScriptParser
It opens road for implementation of VERSION linkerscript command.

Differential revision: https://reviews.llvm.org/D23774

llvm-svn: 280212
2016-08-31 09:08:26 +00:00
George Rimar 43ec1c532e [ELF] - Inline defineSymbolVersion(). NFC.
llvm-svn: 279059
2016-08-18 12:53:57 +00:00
George Rimar 7899d48dff [ELF] - Add Id field to Version struct.
That helps to avoid expressions like I + 2 in code
that assigns version number to symbols.

Change was suggested by Rui Ueyama.

Differential revision: http://reviews.llvm.org/D22086

llvm-svn: 275159
2016-07-12 07:44:40 +00:00
George Rimar 086fcae95e [ELF] - Forgot to address these two minors before commit r273152. NFC.
llvm-svn: 273154
2016-06-20 13:22:54 +00:00
George Rimar d3566309eb [ELF] - Recommit r273143("[ELF] - Basic versioned symbols support implemented.")
With fix:
-soname flag was not set in testcase. Hash calculated for base def was different on local
and bot machines because filename fos used for calculating.

Initial commit message:
Patch implements basic support of versioned symbols.
There is no wildcards patterns matching except local: *;
There is no support for hierarchies.
There is no support for symbols overrides (@ vs @@ not handled).

This patch allows programs that using simple scripts to link and run.

Differential revision: http://reviews.llvm.org/D21018

llvm-svn: 273152
2016-06-20 11:55:12 +00:00
George Rimar d03f97211a Revert r273143 "[ELF] - Basic versioned symbols support implemented."
It broke buildbot:
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast

llvm-svn: 273146
2016-06-20 10:29:53 +00:00
George Rimar c31fee2212 [ELF] - Basic versioned symbols support implemented.
Patch implements basic support of versioned symbols.
There is no wildcards patterns matching except local: *;
There is no support for hierarchies.
There is no support for symbols overrides (@ vs @@ not handled).

This patch allows programs that using simple scripts to link and run.

Differential revision: http://reviews.llvm.org/D21018

llvm-svn: 273143
2016-06-20 10:16:33 +00:00
Peter Collingbourne 66ac1d6152 ELF: Implement basic support for --version-script.
This patch only implements support for version scripts of the form:
  { [ global: symbol1; symbol2; [...]; symbolN; ] local: *; };
No wildcards are supported, other than for the local entry. Symbol versioning
is also not supported.

It works by introducing a new Symbol flag which tracks whether a symbol
appears in the global section of a version script.

This patch also simplifies the logic in SymbolBody::isPreemptible(), and
teaches it to handle the case where symbols with default visibility in DSOs
do not appear in the dynamic symbol table because of a version script.

Fixes PR27482.

Differential Revision: http://reviews.llvm.org/D19430

llvm-svn: 267208
2016-04-22 20:21:26 +00:00