maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[ELF][MIPS] Fix the comment 

llvm-svn: 278480
This commit is contained in:
Simon Atanasyan 2016-08-12 05:43:42 +00:00
parent f197b1f78f
commit 6be57b3fb1
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
lld/ELF/Mips.cpp
View File

@ -252,12 +252,15 @@ static StringRef getArchName(uint32_t Flags) {
}
}
// There are (arguably too) many MIPS ISAs out there. Some are compatible
// with each other and some are not. This function checks if all input
// files are compatible with each other, and if so, returns the "lowest"
// ISA flag. For example, if one object is in EF_MIPS_ARCH_3 and the
// other is in EF_MIPS_ARCH_2, it'll return EF_MIPS_ARCH_2 because it's
// older than EF_MIPS_ARCH_3.
// There are (arguably too) many MIPS ISAs out there. Their relationships
// can be represented as a forest. If all input files have ISAs which
// reachable by repeated proceeding from the single child to the parent,
// these input files are compatible. In that case we need to return "highest"
// ISA. If there are incompatible input files, we show an error.
// For example, mips1 is a "parent" of mips2 and such files are compatible.
// Output file gets EF_MIPS_ARCH_2 flag. From the other side mips3 and mips32
// are incompatible because nor mips3 is a parent for misp32, nor mips32
// is a parent for mips3.
static uint32_t getArchFlags(ArrayRef<FileFlags> Files) {
uint32_t Ret = Files[0].Flags & (EF_MIPS_ARCH | EF_MIPS_MACH);