diff options
Diffstat (limited to 'src/cmd/link/internal/ld/main.go')
| -rw-r--r-- | src/cmd/link/internal/ld/main.go | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/src/cmd/link/internal/ld/main.go b/src/cmd/link/internal/ld/main.go index ff9d1b51a3..dd089e6efa 100644 --- a/src/cmd/link/internal/ld/main.go +++ b/src/cmd/link/internal/ld/main.go @@ -319,25 +319,35 @@ func Main(arch *sys.Arch, theArch Arch) { // for which we have computed the size and offset, in a // mmap'd region. The second part writes more content, for // which we don't know the size. + var outputMmapped bool if ctxt.Arch.Family != sys.Wasm { // Don't mmap if we're building for Wasm. Wasm file // layout is very different so filesize is meaningless. - if err := ctxt.Out.Mmap(filesize); err != nil { - ctxt.Errorf(0, "error mapping file: %v", err) - } + err := ctxt.Out.Mmap(filesize) + outputMmapped = err == nil + } + if outputMmapped { + // Asmb will redirect symbols to the output file mmap, and relocations + // will be applied directly there. + bench.Start("Asmb") + thearch.Asmb(ctxt) + bench.Start("reloc") + ctxt.reloc() + } else { + // If we don't mmap, we need to apply relocations before + // writing out. + bench.Start("reloc") + ctxt.reloc() + bench.Start("Asmb") + thearch.Asmb(ctxt) } - - // Asmb will redirect symbols to the output file mmap, and relocations - // will be applied directly there. - bench.Start("Asmb") - thearch.Asmb(ctxt) - bench.Start("reloc") - ctxt.reloc() bench.Start("Asmb2") thearch.Asmb2(ctxt) - bench.Start("Munmap") - ctxt.Out.Close() // Close handles Munmapping if necessary. + if outputMmapped { + bench.Start("Munmap") + ctxt.Out.Munmap() + } bench.Start("undef") ctxt.undef() |