nsprpub/pr/src/md/os2/os2gc.c@4ab42b5ab56c (annotated)
nsprpub/pr/src/md/os2/os2gc.c
Wed, 31 Dec 2014 07:53:36 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:53:36 +0100
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct small whitespace inconsistency, lost while renaming variables.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | /* |
| michael@0 | 7 | * GC related routines |
| michael@0 | 8 | * |
| michael@0 | 9 | */ |
| michael@0 | 10 | #include "primpl.h" |
| michael@0 | 11 | |
| michael@0 | 12 | PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) |
| michael@0 | 13 | { |
| michael@0 | 14 | CONTEXTRECORD context; |
| michael@0 | 15 | context.ContextFlags = CONTEXT_INTEGER; |
| michael@0 | 16 | |
| michael@0 | 17 | if (_PR_IS_NATIVE_THREAD(t)) { |
| michael@0 | 18 | context.ContextFlags |= CONTEXT_CONTROL; |
| michael@0 | 19 | if (QueryThreadContext(t->md.handle, CONTEXT_CONTROL, &context)) { |
| michael@0 | 20 | t->md.gcContext[0] = context.ctx_RegEax; |
| michael@0 | 21 | t->md.gcContext[1] = context.ctx_RegEbx; |
| michael@0 | 22 | t->md.gcContext[2] = context.ctx_RegEcx; |
| michael@0 | 23 | t->md.gcContext[3] = context.ctx_RegEdx; |
| michael@0 | 24 | t->md.gcContext[4] = context.ctx_RegEsi; |
| michael@0 | 25 | t->md.gcContext[5] = context.ctx_RegEdi; |
| michael@0 | 26 | t->md.gcContext[6] = context.ctx_RegEsp; |
| michael@0 | 27 | t->md.gcContext[7] = context.ctx_RegEbp; |
| michael@0 | 28 | *np = PR_NUM_GCREGS; |
| michael@0 | 29 | } else { |
| michael@0 | 30 | PR_ASSERT(0);/* XXX */ |
| michael@0 | 31 | } |
| michael@0 | 32 | } |
| michael@0 | 33 | return (PRWord *)&t->md.gcContext; |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | /* This function is not used right now, but is left as a reference. |
| michael@0 | 37 | * If you ever need to get the fiberID from the currently running fiber, |
| michael@0 | 38 | * this is it. |
| michael@0 | 39 | */ |
| michael@0 | 40 | void * |
| michael@0 | 41 | GetMyFiberID() |
| michael@0 | 42 | { |
| michael@0 | 43 | void *fiberData = 0; |
| michael@0 | 44 | |
| michael@0 | 45 | /* A pointer to our tib entry is found at FS:[18] |
| michael@0 | 46 | * At offset 10h is the fiberData pointer. The context of the |
| michael@0 | 47 | * fiber is stored in there. |
| michael@0 | 48 | */ |
| michael@0 | 49 | #ifdef HAVE_ASM |
| michael@0 | 50 | __asm { |
| michael@0 | 51 | mov EDX, FS:[18h] |
| michael@0 | 52 | mov EAX, DWORD PTR [EDX+10h] |
| michael@0 | 53 | mov [fiberData], EAX |
| michael@0 | 54 | } |
| michael@0 | 55 | #endif |
| michael@0 | 56 | |
| michael@0 | 57 | return fiberData; |
| michael@0 | 58 | } |
