Claudio Jeker 17945a28a2 Implement the fcontext asm for sparc64 ...

This implements the required asm functions for sparc64_sysv_elf and
was tested on an OpenBSD/sparc64 system.

Jump_fcontext uses an extra C call frame to store the frame-pointer and
return address. Because of this the code is simply a save (to new reg
window), then forcing a window flush and finally switch stack and restore
from there.

Since jump_fcontext() uses a register window and stack frame, make_fcontext()
reserves two call frames on the stack (one for jump_fcontext() and the other
for the callback function).

OpenBSD/sparc64 uses stackghost which prevents userland from overriding the
return-address on the stack. Because of this make_fcontext() uses an extra
trampoline to implement the _exit(0) call if the callback returns.

All tests pass with this on OpenBSD/sparc64 (also the tests for fiber,
coroutine and coroutine2).

2024-02-13 11:16:42 +01:00

..

asm

Implement the fcontext asm for sparc64

2024-02-13 11:16:42 +01:00

posix

Suppressing -Wsign-conversion warnings

2023-10-28 21:02:03 -08:00

windows

Cease dependence on Thread

2021-06-12 22:23:08 +03:00

continuation.cpp

remove execution_context.hpp from contiunation.cpp

2021-06-01 17:42:50 +02:00

dummy.cpp

context: fix for bug #7864

2013-01-07 21:24:57 +00:00

fiber.cpp

rename thread-local for fiber

2018-04-11 06:23:29 +02:00

untested.cpp

change untested - output

2014-02-20 19:41:07 +01:00