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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* GC related routines
#include "primpl.h"
PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np)
context.ContextFlags = CONTEXT_INTEGER;
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;
} 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 *
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
return fiberData;