On Fri, 2021-05-07 at 00:06 +0800, 陈云星 via Gcc-help wrote: > From llvm community: > https://reviews.llvm.org/rG1a33c0f2422c97dbfdbf11e561bb7823d71e3145 ;< > https://reviews.llvm.org/rG1a33c0f2422c97dbfdbf11e561bb7823d71e3145> > > LLD linker has an option : --symbol-ordering-file > > Which support direct linker to sort symbol in result object by a user > supplied file; > > This improve performance by reduce instruction cache miss. > > The hottest function will cluster and code cache hit rate will be high. > > Does gnu linker can support this ? I think with -ffunction-sections and -fdata-sections, and a ld script it can be achieved. But it may be very painful. Cc binutils, as it's a more proper location to discuss this. -- Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
