3 Commits

Author	SHA1	Message	Date
Vedant Kumar	5881cafdd3	[llvm-nm] Print out N_COLD_FUNC as "cold func" ... Per post-commit feedback from Mike, have llvm-nm print out this symbol attribute as "[cold func]". llvm-svn: 352258	2019-01-26 00:33:15 +00:00
Vedant Kumar	8057a16e18	[MC] Teach the MachO object writer about N_FUNC_COLD ... N_FUNC_COLD is a new MachO symbol attribute. It's a hint to the linker to order a symbol towards the end of its section, to improve locality. Example: ``` void a1() {} __attribute__((cold)) void a2() {} void a3() {} int main() { a1(); a2(); a3(); return 0; } ``` A linker that supports N_FUNC_COLD will order _a2 to the end of the text section. From `nm -njU` output, we see: ``` _a1 _a3 _main _a2 ``` Differential Revision: https://reviews.llvm.org/D57190 llvm-svn: 352227	2019-01-25 18:30:22 +00:00
Kevin Enderby	d55cebfaec	llvm-nm should show a symbol type of T for symbols in the (__TEXT_EXEC,__text) section. ... When a the Apple link editor builds a kext bundle file type and the value of the -miphoneos-version-min argument is significantly current (like 11.0) then the (__TEXT,__text) section is changed to the (__TEXT_EXEC,__text) section. So it would be nice for llvm-nm to show symbols in that section with a type of T instead of the generic type of S for some section other than text, data, etc. rdar://36262205 llvm-svn: 323836	2018-01-31 00:00:41 +00:00