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Coroutine rework.

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* ucontext backend (default on unix)
* setjmp backend
* fibers backend (default and required on windows)
* Fixed coroutine loop timing issues
* Fixed saving of xmm registers on x64 windows
* Fixed alignment issues
* Updated coroutine sample with cooperative fibonacci calculation.
* Disable glibc security features only when platform jump functions are used
* Removed dependency on fasm.
    * Using fiber api on windows.
    * Other platforms and compilers  will use built in assembler and .S files or API provided by platform libc.
* Replaced stack switching procs with `coroExecWithStack()` which never returns. This makes compiler always generate proper code.
This commit is contained in:
Rokas Kupstys 2017-02-20 17:10:50 +02:00
commit 373e667dbc
11 changed files with 421 additions and 446 deletions
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3
lib/system/gc.nim
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@ -12,9 +12,6 @@
# Refcounting + Mark&Sweep. Complex algorithms avoided.
# Been there, done that, didn't work.
when defined(nimCoroutines):
import arch
{.push profiler:off.}
const