syscall: use error

- syscall (not os) now defines the Errno type.
- the low-level assembly functions Syscall, Syscall6, and so on
  return Errno, not uintptr
- syscall wrappers all return error, not uintptr.

R=golang-dev, mikioh.mikioh, r, alex.brainman
CC=golang-dev
https://golang.org/cl/5372080
This commit is contained in:
Russ Cox 2011-11-13 22:44:52 -05:00
parent b126902e84
commit c017a8299f
102 changed files with 7429 additions and 5975 deletions

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