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Haiku support for Nim (#8542)

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* posix_other: Haiku now has spawn.h

This is added per https://dev.haiku-os.org/ticket/13446

* posix_other: Add Haiku specific Dirent members

* cpuinfo: Add an implementation for Haiku

* distros: Add basic Haiku support

* encodings: update Haiku support

* fenv, math: Haiku now provides libm

* times: Add Haiku struct members

* ansi_c, osalloc: Add Haiku constants

* threads: Add Haiku support

* testament: Haiku uses LIBRARY_PATH

* nim.cfg: Update Haiku support

libnetwork should only be linked if network functions are used

* threads: Haiku does not support -pthread switch

* tworkingdir: Haiku's env is in /bin

* posix_other: add SIGKILLTHR for Haiku

* sockets: link with libnetwork on Haiku

* coro: correct ucontext.h location

http://pubs.opengroup.org/onlinepubs/009696699/basedefs/ucontext.h.html

* coro: ucontext backend is not available on Haiku

Haiku doesn't provide the <ucontext.h> header, as it was removed from POSIX

* coro: fix setjmp backend

The compiler does not allow statements after a noreturn function

* nativesockets: Haiku doesn't support AI_V4MAPPED

* system: hostOS can contains "haiku"

* os: add support for Haiku's packagefs

packagefs is read-only, but there are writable holes to the underlying
file system as well

* os: update constant for Haiku
This commit is contained in:
alaviss 2018-08-14 14:35:07 +07:00 • committed by Andreas Rumpf
commit 7ef268274f
19 changed files with 114 additions and 29 deletions
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18
lib/pure/coro.nim
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@ -43,6 +43,10 @@ when defined(windows):
{.warning: "ucontext coroutine backend is not available on windows, defaulting to fibers.".}
when defined(nimCoroutinesSetjmp):
{.warning: "setjmp coroutine backend is not available on windows, defaulting to fibers.".}
elif defined(haiku):
const coroBackend = CORO_BACKEND_SETJMP
when defined(nimCoroutinesUcontext):
{.warning: "ucontext coroutine backend is not available on haiku, defaulting to setjmp".}
elif defined(nimCoroutinesSetjmp) or defined(nimCoroutinesSetjmpBundled):
const coroBackend = CORO_BACKEND_SETJMP
else:
@ -55,21 +59,21 @@ when coroBackend == CORO_BACKEND_FIBERS:
elif coroBackend == CORO_BACKEND_UCONTEXT:
type
stack_t {.importc, header: "<sys/ucontext.h>".} = object
stack_t {.importc, header: "<ucontext.h>".} = object
ss_sp: pointer
ss_flags: int
ss_size: int
ucontext_t {.importc, header: "<sys/ucontext.h>".} = object
ucontext_t {.importc, header: "<ucontext.h>".} = object
uc_link: ptr ucontext_t
uc_stack: stack_t
Context = ucontext_t
proc getcontext(context: var ucontext_t): int32 {.importc, header: "<sys/ucontext.h>".}
proc setcontext(context: var ucontext_t): int32 {.importc, header: "<sys/ucontext.h>".}
proc swapcontext(fromCtx, toCtx: var ucontext_t): int32 {.importc, header: "<sys/ucontext.h>".}
proc makecontext(context: var ucontext_t, fn: pointer, argc: int32) {.importc, header: "<sys/ucontext.h>", varargs.}
proc getcontext(context: var ucontext_t): int32 {.importc, header: "<ucontext.h>".}
proc setcontext(context: var ucontext_t): int32 {.importc, header: "<ucontext.h>".}
proc swapcontext(fromCtx, toCtx: var ucontext_t): int32 {.importc, header: "<ucontext.h>".}
proc makecontext(context: var ucontext_t, fn: pointer, argc: int32) {.importc, header: "<ucontext.h>", varargs.}
elif coroBackend == CORO_BACKEND_SETJMP:
proc coroExecWithStack*(fn: pointer, stack: pointer) {.noreturn, importc: "narch_$1", fastcall.}
@ -190,7 +194,7 @@ proc switchTo(current, to: CoroutinePtr) =
elif to.state == CORO_CREATED:
# Coroutine is started.
coroExecWithStack(runCurrentTask, to.stack.bottom)
doAssert false
#doAssert false
else:
{.error: "Invalid coroutine backend set.".}
# Execution was just resumed. Restore frame information and set active stack.