4 Commits

Author SHA1 Message Date
Erik Pilkington
7fbf15a8f2 [CodeGenObjC] Privatize some ObjC metadata symbols
Nobody needs these symbols, so there isn't any benefit in including them. This
saves some code-size in Objective-C binaries. Partially reverts:
https://reviews.llvm.org/D61454. rdar://56579760

Differential revision: https://reviews.llvm.org/D75491
2020-03-09 15:40:24 -07:00
Akira Hatanaka
187770dc74 [CodeGen][ObjC] Remove the leading l_ from ObjC symbols and make
private symbols in the __DATA segment internal.

This prevents the linker from removing the symbol names. Keeping the
symbols visible enables tools to collect various information about the
symbols, for example, tools that discover whether or not a symbol gets
dirtied.

rdar://problem/48887111

Differential Revision: https://reviews.llvm.org/D61454

llvm-svn: 360359
2019-05-09 17:43:52 +00:00
Akira Hatanaka
6bc3a7703b [CodeGen][ObjC] Remove the leading 'l' from symbols for protocol
metadata and protocol list

The leading 'l' tells ld64 to remove the symbol name, which can make
debugging difficult.

rdar://problem/47256637

Differential Revision: https://reviews.llvm.org/D59234

llvm-svn: 356156
2019-03-14 15:17:37 +00:00
Saleem Abdulrasool
13d73d53c4 CodeGen: fix section names for different file formats
This changes the codegen to match the section names according to the
ObjC rewriter as well as the runtime.  The changes to the test are
simply whitespace changes to the section attributes and names and are
functionally equivalent (the whitespace is ignored by the linker).

llvm-svn: 304661
2017-06-03 16:18:09 +00:00