Implement new syscall package.

Calls to library functions now use entersyscall and
exitsyscall as appropriate.  This is a first step toward
multiplexing goroutines onto threads.

R=iant
CC=gofrontend-dev
https://golang.org/cl/5307053
79 files changed
tree: cb56a792efc6a67b00a0d350a8f406563812e612
  1. go/
  2. libgo/
  3. support/
  4. .hgignore
  5. AUTHORS
  6. CONTRIBUTORS
  7. LICENSE
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  9. README