From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- nsprpub/pr/src/md/os2/os2gc.c | 58 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 nsprpub/pr/src/md/os2/os2gc.c (limited to 'nsprpub/pr/src/md/os2/os2gc.c') diff --git a/nsprpub/pr/src/md/os2/os2gc.c b/nsprpub/pr/src/md/os2/os2gc.c new file mode 100644 index 0000000000..79b6de5736 --- /dev/null +++ b/nsprpub/pr/src/md/os2/os2gc.c @@ -0,0 +1,58 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * GC related routines + * + */ +#include "primpl.h" + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ + CONTEXTRECORD context; + context.ContextFlags = CONTEXT_INTEGER; + + if (_PR_IS_NATIVE_THREAD(t)) { + context.ContextFlags |= CONTEXT_CONTROL; + if (QueryThreadContext(t->md.handle, CONTEXT_CONTROL, &context)) { + t->md.gcContext[0] = context.ctx_RegEax; + t->md.gcContext[1] = context.ctx_RegEbx; + t->md.gcContext[2] = context.ctx_RegEcx; + t->md.gcContext[3] = context.ctx_RegEdx; + t->md.gcContext[4] = context.ctx_RegEsi; + t->md.gcContext[5] = context.ctx_RegEdi; + t->md.gcContext[6] = context.ctx_RegEsp; + t->md.gcContext[7] = context.ctx_RegEbp; + *np = PR_NUM_GCREGS; + } else { + PR_ASSERT(0);/* XXX */ + } + } + return (PRWord *)&t->md.gcContext; +} + +/* This function is not used right now, but is left as a reference. + * If you ever need to get the fiberID from the currently running fiber, + * this is it. + */ +void * +GetMyFiberID() +{ + void *fiberData = 0; + + /* A pointer to our tib entry is found at FS:[18] + * At offset 10h is the fiberData pointer. The context of the + * fiber is stored in there. + */ +#ifdef HAVE_ASM + __asm { + mov EDX, FS:[18h] + mov EAX, DWORD PTR [EDX+10h] + mov [fiberData], EAX + } +#endif + + return fiberData; +} -- cgit v1.2.3