Commits

Commit:
91ececc99741b3111c69d455bc928e871b15d766
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: drop schedlock Having two locks in the proc was causing deadlocks.
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Commit:
18571208068d5fe2f0bf7b4e980525a7f577c503
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: simplify Now that everything uses pthreads and pthreadperthread, can delete various conditionals, all the custom context code, and so on. Also update documents. Fixes #355.
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Commit:
b73633b1b4e9d3dbd680edf900b2b53befbf5a9a
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: fix pthreadperthread bugs
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Commit:
329831171dd6ef81c113f101093c7b4947381003
From:
Xiao-Yong <xjin@anl.gov>
Via:
GitHub <noreply@github.com>
Date:
libthread: use libc functions in ucontext for macOS (#417)
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Commit:
baef953da253314657be9adea8f371bfbf4ba09e
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: add pthreadperthread mode and use under ASAN ASAN can't deal with the coroutine stacks. In theory we can call into ASAN runtime to let it know about them, but ASAN still has problems with fork or exit happening from a non-system stack. Bypass all possible problems by just having a full OS thread for each libthread thread. The threads are still cooperatively scheduled within a proc (in thos mode, a group of OS threads). Setting the environment variable LIBTHREAD=pthreadperthread will enable the pthreadperthread mode, as will building with CC9FLAGS='-fsanitize=address' in $PLAN9/config. This solution is much more general than ASAN - for example if you are trying to find all the thread stacks in a reproducible crash you can use pthreadperthread mode with any debugger that knows only about OS threads.
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Commit:
41b3e8b9893a8561af7e85ca98444bc284b4013d
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: use consistent stack calculation code in makecontext Also reduce duplication: makecontext is per-arch not per-os-arch. May fix #353.
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Commit:
c181e39eeab0eb8cad274b7b22ce5343bd55630d
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: rm unused sparc-ucontext.h More dead code.
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Commit:
8dcb18f71b1917713d4743ab10968c527acdc62e
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: rm FreeBSD 4 code Pretty sure FreeBSD 4 is gone now. :-)
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Commit:
8c573cab6819c69142389d36b978b3c683771afe
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: use mmap to allocate OpenBSD stacks Should fix faults on OpenBSD. Fixes #218. Fixes #226.
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Commit:
481b596d9389076d686832e0a3c26fc7b550c532
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: fix fault in teardown of proc Fixes #332.
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Commit:
0158bceec78c7891a7ef672770bf42e65fd064dd
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: run first thread in proc on system stack For pthread systems that are fussy about which stack is used, this makes sure that threadmain runs on a system stack. If you only use proccreate (never threadcreate), all threads run on system stacks.
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Commit:
fa325e9b42b0bdfb48857d1958d9fb7ceac55151
From:
Dan Cross <cross@gajendra.net>
Date:
Trivial changes: whitespace and modes. Remote whitespace at the ends of lines. Remove blank lines from the ends of files. Change modes on source files so that they are not executable. Signed-off-by: Dan Cross <cross@gajendra.net>
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Commit:
9e4b56e7645e08311590355824863ecf9f334f0c
From:
Russ Cox <rsc@swtch.com>
Date:
libthread: add threadspawnd R=rsc http://codereview.appspot.com/6742064
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Commit:
20f5692b7fe1190e6c518ed82764ded41dd92986
From:
Russ Cox <rsc@swtch.com>
Date:
openbsd updates (thanks Pascal Stumpf) R=rsc http://codereview.appspot.com/6401049
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Commit:
813b3eea8b469a6d603f13a51a8afb8e3dae3a32
From:
Russ Cox <rsc@swtch.com>
Date:
OS X PowerPC fixes (thanks Cameron Kaiser)
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