Mercurial > hg > xemacs-beta
annotate src/vdb-mach.c @ 5492:e82f5b7010fe
Merge some stuff in man, fix up Makefile
-------------------- ChangeLog entries follow: --------------------
man/ChangeLog addition:
2010-02-19 Ben Wing <ben@xemacs.org>
* widget.texi:
* widget.texi (Top):
* widget.texi (Introduction):
* widget.texi (User Interface):
* widget.texi (Programming Example):
* widget.texi (Setting Up the Buffer):
* widget.texi (Basic Types):
* widget.texi (link):
* widget.texi (url-link):
* widget.texi (info-link):
* widget.texi (push-button):
* widget.texi (editable-field):
* widget.texi (text):
* widget.texi (menu-choice):
* widget.texi (radio-button-choice):
* widget.texi (item):
* widget.texi (choice-item):
* widget.texi (toggle):
* widget.texi (checkbox):
* widget.texi (checklist):
* widget.texi (editable-list):
* widget.texi (group):
* widget.texi (Sexp Types):
* widget.texi (constants):
* widget.texi (generic):
* widget.texi (atoms):
* widget.texi (composite):
* widget.texi (Widget Properties):
* widget.texi (Defining New Widgets):
* widget.texi (Widget Browser):
* widget.texi (Widget Minor Mode):
* widget.texi (Utilities):
* widget.texi (Widget Wishlist):
* widget.texi (Widget Internals):
* widget.texi (GNU Free Documentation License):
* widget.texi (Index):
Sync with FSF 23.1.92.
2010-02-19 Ben Wing <ben@xemacs.org>
* texinfo/fdl.texi: New file.
* texinfo/texinfo.texi:
* texinfo/texinfo.texi (Top):
* texinfo/texinfo.texi (Copying Conditions):
* texinfo/texinfo.texi (Overview):
* texinfo/texinfo.texi (Reporting Bugs):
* texinfo/texinfo.texi (Using Texinfo):
* texinfo/texinfo.texi (Output Formats):
* texinfo/texinfo.texi (Info Files):
* texinfo/texinfo.texi (Printed Books):
* texinfo/texinfo.texi (Formatting Commands):
* texinfo/texinfo.texi (Conventions):
* texinfo/texinfo.texi (Comments):
* texinfo/texinfo.texi (Minimum):
* texinfo/texinfo.texi (Six Parts):
* texinfo/texinfo.texi (Short Sample):
* texinfo/texinfo.texi (History):
* texinfo/texinfo.texi (Texinfo Mode):
* texinfo/texinfo.texi (Texinfo Mode Overview):
* texinfo/texinfo.texi (XEmacs Editing):
* texinfo/texinfo.texi (Inserting):
* texinfo/texinfo.texi (Showing the Structure):
* texinfo/texinfo.texi (Updating Nodes and Menus):
* texinfo/texinfo.texi (Updating Commands):
* texinfo/texinfo.texi (Updating Requirements):
* texinfo/texinfo.texi (Other Updating Commands):
* texinfo/texinfo.texi (Info Formatting):
* texinfo/texinfo.texi (Printing):
* texinfo/texinfo.texi (Texinfo Mode Summary):
* texinfo/texinfo.texi (Beginning a File):
* texinfo/texinfo.texi (Sample Beginning):
* texinfo/texinfo.texi (Texinfo File Header):
* texinfo/texinfo.texi (First Line):
* texinfo/texinfo.texi (Start of Header):
* texinfo/texinfo.texi (setfilename):
* texinfo/texinfo.texi (settitle):
* texinfo/texinfo.texi (End of Header):
* texinfo/texinfo.texi (Document Permissions):
* texinfo/texinfo.texi (copying):
* texinfo/texinfo.texi (insertcopying):
* texinfo/texinfo.texi (Titlepage & Copyright Page):
* texinfo/texinfo.texi (titlepage):
* texinfo/texinfo.texi (titlefont center sp):
* texinfo/texinfo.texi (title subtitle author):
* texinfo/texinfo.texi (Copyright):
* texinfo/texinfo.texi (end titlepage):
* texinfo/texinfo.texi (headings on off):
* texinfo/texinfo.texi (Contents):
* texinfo/texinfo.texi (The Top Node):
* texinfo/texinfo.texi (Top Node Example):
* texinfo/texinfo.texi (Master Menu Parts):
* texinfo/texinfo.texi (Global Document Commands):
* texinfo/texinfo.texi (documentdescription):
* texinfo/texinfo.texi (setchapternewpage):
* texinfo/texinfo.texi (paragraphindent):
* texinfo/texinfo.texi (firstparagraphindent):
* texinfo/texinfo.texi (exampleindent):
* texinfo/texinfo.texi (Software Copying Permissions):
* texinfo/texinfo.texi (Ending a File):
* texinfo/texinfo.texi (Printing Indices & Menus):
* texinfo/texinfo.texi (File End):
* texinfo/texinfo.texi (Structuring):
* texinfo/texinfo.texi (Tree Structuring):
* texinfo/texinfo.texi (Structuring Command Types):
* texinfo/texinfo.texi (makeinfo top):
* texinfo/texinfo.texi (chapter):
* texinfo/texinfo.texi (unnumbered & appendix):
* texinfo/texinfo.texi (majorheading & chapheading):
* texinfo/texinfo.texi (section):
* texinfo/texinfo.texi (unnumberedsec appendixsec heading):
* texinfo/texinfo.texi (subsection):
* texinfo/texinfo.texi (unnumberedsubsec appendixsubsec subheading):
* texinfo/texinfo.texi (subsubsection):
* texinfo/texinfo.texi (Raise/lower sections):
* texinfo/texinfo.texi (Nodes):
* texinfo/texinfo.texi (Two Paths):
* texinfo/texinfo.texi (Node Menu Illustration):
* texinfo/texinfo.texi (node):
* texinfo/texinfo.texi (Node Names):
* texinfo/texinfo.texi (Writing a Node):
* texinfo/texinfo.texi (Node Line Tips):
* texinfo/texinfo.texi (Node Line Requirements):
* texinfo/texinfo.texi (First Node):
* texinfo/texinfo.texi (makeinfo top command):
* texinfo/texinfo.texi (makeinfo Pointer Creation):
* texinfo/texinfo.texi (anchor):
* texinfo/texinfo.texi (Menus):
* texinfo/texinfo.texi (Menu Location):
* texinfo/texinfo.texi (Writing a Menu):
* texinfo/texinfo.texi (Menu Parts):
* texinfo/texinfo.texi (Less Cluttered Menu Entry):
* texinfo/texinfo.texi (Menu Example):
* texinfo/texinfo.texi (Other Info Files):
* texinfo/texinfo.texi (Cross References):
* texinfo/texinfo.texi (References):
* texinfo/texinfo.texi (Cross Reference Commands):
* texinfo/texinfo.texi (Cross Reference Parts):
* texinfo/texinfo.texi (xref):
* texinfo/texinfo.texi (Reference Syntax):
* texinfo/texinfo.texi (One Argument):
* texinfo/texinfo.texi (Two Arguments):
* texinfo/texinfo.texi (Three Arguments):
* texinfo/texinfo.texi (Four and Five Arguments):
* texinfo/texinfo.texi (Top Node Naming):
* texinfo/texinfo.texi (ref):
* texinfo/texinfo.texi (pxref):
* texinfo/texinfo.texi (inforef):
* texinfo/texinfo.texi (uref):
* texinfo/texinfo.texi (cite):
* texinfo/texinfo.texi (Marking Text):
* texinfo/texinfo.texi (Indicating):
* texinfo/texinfo.texi (Useful Highlighting):
* texinfo/texinfo.texi (code):
* texinfo/texinfo.texi (kbd):
* texinfo/texinfo.texi (key):
* texinfo/texinfo.texi (samp):
* texinfo/texinfo.texi (verb):
* texinfo/texinfo.texi (var):
* texinfo/texinfo.texi (env):
* texinfo/texinfo.texi (file):
* texinfo/texinfo.texi (command):
* texinfo/texinfo.texi (option):
* texinfo/texinfo.texi (dfn):
* texinfo/texinfo.texi (abbr):
* texinfo/texinfo.texi (acronym):
* texinfo/texinfo.texi (indicateurl):
* texinfo/texinfo.texi (email):
* texinfo/texinfo.texi (Emphasis):
* texinfo/texinfo.texi (emph & strong):
* texinfo/texinfo.texi (Smallcaps):
* texinfo/texinfo.texi (Fonts):
* texinfo/texinfo.texi (Quotations and Examples):
* texinfo/texinfo.texi (Block Enclosing Commands):
* texinfo/texinfo.texi (quotation):
* texinfo/texinfo.texi (example):
* texinfo/texinfo.texi (verbatim):
* texinfo/texinfo.texi (verbatiminclude):
* texinfo/texinfo.texi (lisp):
* texinfo/texinfo.texi (small):
* texinfo/texinfo.texi (display):
* texinfo/texinfo.texi (format):
* texinfo/texinfo.texi (exdent):
* texinfo/texinfo.texi (flushleft & flushright):
* texinfo/texinfo.texi (noindent):
* texinfo/texinfo.texi (indent):
* texinfo/texinfo.texi (cartouche):
* texinfo/texinfo.texi (Lists and Tables):
* texinfo/texinfo.texi (Introducing Lists):
* texinfo/texinfo.texi (itemize):
* texinfo/texinfo.texi (enumerate):
* texinfo/texinfo.texi (Two-column Tables):
* texinfo/texinfo.texi (table):
* texinfo/texinfo.texi (ftable vtable):
* texinfo/texinfo.texi (itemx):
* texinfo/texinfo.texi (Multi-column Tables):
* texinfo/texinfo.texi (Multitable Column Widths):
* texinfo/texinfo.texi (Multitable Rows):
* texinfo/texinfo.texi (Special Displays):
* texinfo/texinfo.texi (Floats):
* texinfo/texinfo.texi (float):
* texinfo/texinfo.texi (caption shortcaption):
* texinfo/texinfo.texi (listoffloats):
* texinfo/texinfo.texi (Images):
* texinfo/texinfo.texi (Image Syntax):
* texinfo/texinfo.texi (Image Scaling):
* texinfo/texinfo.texi (Footnotes):
* texinfo/texinfo.texi (Footnote Commands):
* texinfo/texinfo.texi (Footnote Styles):
* texinfo/texinfo.texi (Indices):
* texinfo/texinfo.texi (Index Entries):
* texinfo/texinfo.texi (Predefined Indices):
* texinfo/texinfo.texi (Indexing Commands):
* texinfo/texinfo.texi (Combining Indices):
* texinfo/texinfo.texi (syncodeindex):
* texinfo/texinfo.texi (synindex):
* texinfo/texinfo.texi (New Indices):
* texinfo/texinfo.texi (Insertions):
* texinfo/texinfo.texi (Atsign Braces Comma):
* texinfo/texinfo.texi (Inserting an Atsign):
* texinfo/texinfo.texi (Inserting Braces):
* texinfo/texinfo.texi (Inserting a Comma):
* texinfo/texinfo.texi (Inserting Quote Characters):
* texinfo/texinfo.texi (Inserting Space):
* texinfo/texinfo.texi (Not Ending a Sentence):
* texinfo/texinfo.texi (Ending a Sentence):
* texinfo/texinfo.texi (Multiple Spaces):
* texinfo/texinfo.texi (frenchspacing):
* texinfo/texinfo.texi (dmn):
* texinfo/texinfo.texi (Inserting Accents):
* texinfo/texinfo.texi (Inserting Quotation Marks):
* texinfo/texinfo.texi (Dots Bullets):
* texinfo/texinfo.texi (dots):
* texinfo/texinfo.texi (bullet):
* texinfo/texinfo.texi (TeX and copyright):
* texinfo/texinfo.texi (tex):
* texinfo/texinfo.texi (copyright symbol):
* texinfo/texinfo.texi (registered symbol):
* texinfo/texinfo.texi (euro):
* texinfo/texinfo.texi (pounds):
* texinfo/texinfo.texi (textdegree):
* texinfo/texinfo.texi (minus):
* texinfo/texinfo.texi (geq leq):
* texinfo/texinfo.texi (math):
* texinfo/texinfo.texi (Click Sequences):
* texinfo/texinfo.texi (Glyphs):
* texinfo/texinfo.texi (Glyphs Summary):
* texinfo/texinfo.texi (result):
* texinfo/texinfo.texi (expansion):
* texinfo/texinfo.texi (Print Glyph):
* texinfo/texinfo.texi (Error Glyph):
* texinfo/texinfo.texi (Equivalence):
* texinfo/texinfo.texi (Point Glyph):
* texinfo/texinfo.texi (Breaks):
* texinfo/texinfo.texi (Break Commands):
* texinfo/texinfo.texi (Line Breaks):
* texinfo/texinfo.texi (- and hyphenation):
* texinfo/texinfo.texi (allowcodebreaks):
* texinfo/texinfo.texi (w):
* texinfo/texinfo.texi (tie):
* texinfo/texinfo.texi (sp):
* texinfo/texinfo.texi (page):
* texinfo/texinfo.texi (group):
* texinfo/texinfo.texi (need):
* texinfo/texinfo.texi (Definition Commands):
* texinfo/texinfo.texi (Def Cmd Template):
* texinfo/texinfo.texi (Def Cmd Continuation Lines):
* texinfo/texinfo.texi (Optional Arguments):
* texinfo/texinfo.texi (deffnx):
* texinfo/texinfo.texi (Def Cmds in Detail):
* texinfo/texinfo.texi (Functions Commands):
* texinfo/texinfo.texi (Variables Commands):
* texinfo/texinfo.texi (Typed Functions):
* texinfo/texinfo.texi (Typed Variables):
* texinfo/texinfo.texi (Data Types):
* texinfo/texinfo.texi (Abstract Objects):
* texinfo/texinfo.texi (Object-Oriented Variables):
* texinfo/texinfo.texi (Object-Oriented Methods):
* texinfo/texinfo.texi (Defining Macros):
* texinfo/texinfo.texi (Invoking Macros):
* texinfo/texinfo.texi (Macro Details):
* texinfo/texinfo.texi (alias):
* texinfo/texinfo.texi (definfoenclose):
* texinfo/texinfo.texi (Hardcopy):
* texinfo/texinfo.texi (Use TeX):
* texinfo/texinfo.texi (Format with tex/texindex):
* texinfo/texinfo.texi (Format with texi2dvi):
* texinfo/texinfo.texi (Print with lpr):
* texinfo/texinfo.texi (Within XEmacs):
* texinfo/texinfo.texi (Texinfo Mode Printing):
* texinfo/texinfo.texi (Compile-Command):
* texinfo/texinfo.texi (Requirements Summary):
* texinfo/texinfo.texi (Preparing for TeX):
* texinfo/texinfo.texi (Overfull hboxes):
* texinfo/texinfo.texi (smallbook):
* texinfo/texinfo.texi (A4 Paper):
* texinfo/texinfo.texi (pagesizes):
* texinfo/texinfo.texi (Cropmarks and Magnification):
* texinfo/texinfo.texi (PDF Output):
* texinfo/texinfo.texi (Obtaining TeX):
* texinfo/texinfo.texi (Creating and Installing Info Files):
* texinfo/texinfo.texi (Creating an Info File):
* texinfo/texinfo.texi (makeinfo advantages):
* texinfo/texinfo.texi (Invoking makeinfo):
* texinfo/texinfo.texi (makeinfo options):
* texinfo/texinfo.texi (Pointer Validation):
* texinfo/texinfo.texi (makeinfo in XEmacs):
* texinfo/texinfo.texi (texinfo-format commands):
* texinfo/texinfo.texi (Batch Formatting):
* texinfo/texinfo.texi (Tag and Split Files):
* texinfo/texinfo.texi (Installing an Info File):
* texinfo/texinfo.texi (Directory File):
* texinfo/texinfo.texi (New Info File):
* texinfo/texinfo.texi (Other Info Directories):
* texinfo/texinfo.texi (Installing Dir Entries):
* texinfo/texinfo.texi (Invoking install-info):
* texinfo/texinfo.texi (Generating HTML):
* texinfo/texinfo.texi (HTML Translation):
* texinfo/texinfo.texi (HTML Splitting):
* texinfo/texinfo.texi (HTML CSS):
* texinfo/texinfo.texi (HTML Xref):
* texinfo/texinfo.texi (HTML Xref Link Basics):
* texinfo/texinfo.texi (HTML Xref Node Name Expansion):
* texinfo/texinfo.texi (HTML Xref Command Expansion):
* texinfo/texinfo.texi (HTML Xref 8-bit Character Expansion):
* texinfo/texinfo.texi (HTML Xref Mismatch):
* texinfo/texinfo.texi (Command List):
* texinfo/texinfo.texi (Command Syntax):
* texinfo/texinfo.texi (Tips):
* texinfo/texinfo.texi (Sample Texinfo Files):
* texinfo/texinfo.texi (Short Sample Texinfo File):
* texinfo/texinfo.texi (GNU Sample Texts):
* texinfo/texinfo.texi (Invoking sample):
* texinfo/texinfo.texi (GNU Free Documentation License):
* texinfo/texinfo.texi (Index):
* texinfo/texinfo.texi (Verbatim Copying License):
* texinfo/texinfo.texi (All-permissive Copying License):
* texinfo/texinfo.texi (Include Files):
* texinfo/texinfo.texi (Using Include Files):
* texinfo/texinfo.texi (texinfo-multiple-files-update):
* texinfo/texinfo.texi (Include Files Requirements):
* texinfo/texinfo.texi (Sample Include File):
* texinfo/texinfo.texi (Include Files Evolution):
* texinfo/texinfo.texi (Headings):
* texinfo/texinfo.texi (Headings Introduced):
* texinfo/texinfo.texi (Heading Format):
* texinfo/texinfo.texi (Heading Choice):
* texinfo/texinfo.texi (Custom Headings):
* texinfo/texinfo.texi (Catching Mistakes):
* texinfo/texinfo.texi (makeinfo Preferred):
* texinfo/texinfo.texi (Debugging with Info):
* texinfo/texinfo.texi (Debugging with TeX):
* texinfo/texinfo.texi (Using texinfo-show-structure):
* texinfo/texinfo.texi (Using occur):
* texinfo/texinfo.texi (Running Info-Validate):
* texinfo/texinfo.texi (Using Info-validate):
* texinfo/texinfo.texi (Unsplit):
* texinfo/texinfo.texi (Tagifying):
* texinfo/texinfo.texi (Splitting):
* texinfo/texinfo.texi (Refilling Paragraphs):
* texinfo/texinfo.texi (Command and Variable Index):
* texinfo/texinfo.texi (General Index):
* texinfo/version.texi: New file.
Sync with FSF 23.1.92. Make new directory to hold the files needed
to generate texinfo.info, since there are three such files now.
2010-02-19 Ben Wing <ben@xemacs.org>
* Makefile:
* Makefile (src_files1):
* Makefile (DIR):
* Makefile (texinfo-srcs):
* Makefile ($(INFODIR)/widget.info):
* Makefile ($(INFODIR)/texinfo.info):
* Makefile (.PHONY):
* Makefile (texinfo.dvi):
* Makefile (texinfo.pdf):
* Makefile ($(HTMLDIR)/widget.html):
* Makefile ($(HTMLDIR)/texinfo.html):
Incorporate texinfo.texi moving to a subdirectory texinfo/.
Do some tricks to reduce the amount of duplication while still
maintaining compatible with non-GNU make (at least, with
Solaris make).
* doclicense.texi: New file.
* info.texi:
* info.texi (Top):
* info.texi (Getting Started):
* info.texi (Help-Small-Screen):
* info.texi (Help):
* info.texi (Help-P):
* info.texi (Help-^L):
* info.texi (Help-Inv):
* info.texi (Help-]):
* info.texi (Help-M):
* info.texi (Help-FOO):
* info.texi (Help-Xref):
* info.texi (Help-Int):
* info.texi (Help-Q):
* info.texi (Advanced):
* info.texi (Search Text):
* info.texi (Search Index):
* info.texi (Go to node):
* info.texi (Choose menu subtopic):
* info.texi (Create Info buffer):
* info.texi (XEmacs Info Variables):
* info.texi (Expert Info):
* info.texi (Add):
* info.texi (Menus):
* info.texi (Cross-refs):
* info.texi (Help-Cross):
* info.texi (Tags):
* info.texi (Checking):
* info.texi (Index):
* texinfo.tex:
* texinfo.tex (paragraphindent{%):
* texinfo.tex (sectionheading will have):
* texinfo.tex (chapterzzz{#3}%):
* texinfo.tex (subsubsection = \numberedsubsubsec):
* texinfo.tex (subsubsection = \appendixsubsubsec):
* texinfo.tex (subsubsection = \unnumberedsubsubsec):
* texinfo.tex (sectionheading{#1}{sec}{Ynumbered}{\the\chapno.\the\secno}%):
* texinfo.tex (sectionheading{#1}{sec}{Yappendix}{\appendixletter.\the\secno}%):
* texinfo.tex (sectionheading{#1}{sec}{Ynothing}{\the\unnumberedno.\the\secno}%):
* texinfo.tex (sectionheading{#1}{subsec}{Ynumbered}{\the\chapno.\the\secno.\the\subsecno}%):
* texinfo.tex (sectionheading{#1}{subsec}{Yappendix}%):
* texinfo.tex (sectionheading{#1}{subsec}{Ynothing}%):
* texinfo.tex (sectionheading{#1}{subsubsec}{Ynumbered}%):
* texinfo.tex (sectionheading{#1}{subsubsec}{Yappendix}%):
* texinfo.tex (sectionheading{#1}{subsubsec}{Ynothing}%):
* texinfo.tex (sectionheading{#1}{subsubsec}{Yomitfromtoc}{}):
* texinfo.tex (sectionheading to do the printing.):
* texinfo.tex (sectionlevel}{#1}{#4}%):
* texinfo.tex (sectionheading, q.v.):
Sync with FSF 23.1.92.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 19 Feb 2010 22:39:19 -0600 |
| parents | 141c2920ea48 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 3092 | 1 /* Virtual diry bit implementation for XEmacs. |
| 2 Copyright (C) 2005 Marcus Crestani. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* Synched up with: Not in FSF. */ | |
| 22 | |
| 23 #include <config.h> | |
| 24 #include "lisp.h" | |
| 25 #include "gc.h" | |
| 26 #include "mc-alloc.h" | |
| 27 #include "vdb.h" | |
| 28 | |
| 29 #include <errno.h> | |
| 30 #include <signal.h> | |
| 31 #include <sys/mman.h> | |
| 32 #include <sys/time.h> | |
| 33 #include <sys/resource.h> | |
| 34 #include <unistd.h> | |
| 35 #include <mach/mach.h> | |
| 36 #include <mach/mach_error.h> | |
| 37 #include <architecture/ppc/cframe.h> | |
| 38 | |
| 39 | |
| 40 /* the structure of an exception msg and its reply */ | |
| 41 typedef struct rep_msg { | |
| 42 mach_msg_header_t head; | |
| 43 NDR_record_t NDR; | |
| 44 kern_return_t ret_code; | |
| 45 } mach_reply_msg_t; | |
| 46 | |
| 47 typedef struct exc_msg { | |
| 48 mach_msg_header_t head; | |
| 49 /* start of the kernel processed data */ | |
| 50 mach_msg_body_t msgh_body; | |
| 51 mach_msg_port_descriptor_t thread; | |
| 52 mach_msg_port_descriptor_t task; | |
| 53 /* end of the kernel processed data */ | |
| 54 NDR_record_t NDR; | |
| 55 exception_type_t exception; | |
| 56 mach_msg_type_number_t code_cnt; | |
| 57 exception_data_t code; | |
| 58 /* some padding */ | |
| 59 char pad[512]; | |
| 60 } mach_exc_msg_t; | |
| 61 | |
| 62 /* this is a neat little mach callback */ | |
| 63 extern boolean_t exc_server(mach_msg_header_t *in, mach_msg_header_t *out); | |
| 64 | |
| 65 /* these are the globals everyone needs */ | |
| 66 static size_t page_size = 16384; | |
| 67 static mach_port_t task_self = NULL; | |
| 68 static mach_port_t exc_port = NULL; | |
| 69 | |
| 70 /* these are some less neat mach callbacks */ | |
| 71 kern_return_t | |
| 72 catch_exception_raise_state | |
| 73 (mach_port_t UNUSED (port), | |
| 74 exception_type_t UNUSED (exception_type), | |
| 75 exception_data_t UNUSED (exception_data), | |
| 76 mach_msg_type_number_t UNUSED (data_cnt), | |
| 77 thread_state_flavor_t *UNUSED (flavor), | |
| 78 thread_state_t UNUSED (in_state), | |
| 79 mach_msg_type_number_t UNUSED (is_cnt), | |
| 80 thread_state_t UNUSED (out_state), | |
| 81 mach_msg_type_number_t UNUSED (os_cnt)) | |
| 82 { | |
| 83 return KERN_FAILURE; | |
| 84 } | |
| 85 | |
| 86 kern_return_t | |
| 87 catch_exception_raise_state_identitity | |
| 88 (mach_port_t UNUSED (port), | |
| 89 mach_port_t UNUSED (thread_port), | |
| 90 mach_port_t UNUSED (task_port), | |
| 91 exception_type_t UNUSED (exception_type), | |
| 92 exception_data_t UNUSED (exception_data), | |
| 93 mach_msg_type_number_t UNUSED (data_count), | |
| 94 thread_state_flavor_t *UNUSED (state_flavor), | |
| 95 thread_state_t UNUSED (in_state), | |
| 96 mach_msg_type_number_t UNUSED (in_state_count), | |
| 97 thread_state_t UNUSED (out_state), | |
| 98 mach_msg_type_number_t UNUSED (out_state_count)) | |
| 99 { | |
| 100 return KERN_FAILURE; | |
| 101 } | |
| 102 | |
| 103 kern_return_t | |
| 104 catch_exception_raise | |
| 105 (mach_port_t UNUSED (port), | |
| 106 mach_port_t UNUSED (thread_port), | |
| 107 mach_port_t UNUSED (task_port), | |
| 108 exception_type_t UNUSED (exception_type), | |
| 109 exception_data_t exception_data, | |
| 110 mach_msg_type_number_t UNUSED (data_count)) | |
| 111 { | |
| 112 /* kernel return value is in exception_data[0], faulting address in | |
| 113 exception_data[1] */ | |
| 114 if (write_barrier_enabled | |
| 115 && (fault_on_protected_page ((void *) exception_data[1])) | |
| 116 && exception_data[0] == KERN_PROTECTION_FAILURE) | |
| 117 { | |
| 118 vdb_designate_modified ((void *) exception_data[1]); | |
| 119 unprotect_page_and_mark_dirty ((void *) exception_data[1]); | |
| 120 return KERN_SUCCESS; | |
| 121 } | |
| 122 else /* default sigsegv handler */ | |
| 123 { | |
| 124 fprintf (stderr, "\n\nFatal Error: Received %s (%d) for address 0x%x\n", | |
| 125 "EXC_BAD_ACCESS", exception_data[0], (int) exception_data[1]); | |
| 126 return KERN_FAILURE; | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 /* this is the thread which forwards of exceptions read from the exception | |
| 131 server off to our exception catchers and then back out to the other | |
| 132 thread */ | |
| 133 void | |
| 134 exception_thread(void) | |
| 135 { | |
| 136 mach_msg_header_t *message; | |
| 137 mach_msg_header_t *reply; | |
| 138 kern_return_t retval; | |
| 139 | |
| 140 /* allocate the space for the message and reply */ | |
| 141 message = (mach_msg_header_t *) malloc (sizeof (mach_exc_msg_t)); | |
| 142 reply = (mach_msg_header_t *) malloc (sizeof (mach_reply_msg_t)); | |
| 143 /* do this loop forever */ | |
| 144 while (1) | |
| 145 { | |
| 146 /* block until we get an exception message */ | |
| 147 retval = mach_msg (message, MACH_RCV_MSG, 0, sizeof (mach_exc_msg_t), | |
| 148 exc_port, MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); | |
| 149 /* forward off the handling of this message */ | |
| 150 if (!exc_server (message, reply)) | |
| 151 { | |
| 152 fprintf (stderr, "INTERNAL ERROR: exc_server() failed.\n"); | |
| 153 ABORT (); | |
| 154 } | |
| 155 /* send the message back out to the thread */ | |
| 156 retval = mach_msg (reply, MACH_SEND_MSG, sizeof (mach_reply_msg_t), 0, | |
| 157 MACH_PORT_NULL, MACH_MSG_TIMEOUT_NONE, | |
| 158 MACH_PORT_NULL); | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 /* this initializes the subsystem (sets the exception port, starts the | |
| 163 exception handling thread, etc) */ | |
| 164 void | |
| 165 vdb_install_signal_handler (void) | |
| 166 { | |
| 167 mach_port_t thread_self, exc_port_s, exc_thread; | |
| 168 ppc_thread_state_t *exc_thread_state; | |
| 169 mach_msg_type_name_t type; | |
| 170 void *subthread_stack; | |
| 171 kern_return_t retval; | |
| 172 | |
| 173 /* get ids for ourself */ | |
| 174 if (!task_self) | |
| 175 task_self = mach_task_self (); | |
| 176 thread_self = mach_thread_self (); | |
| 177 | |
| 178 /* allocate the port we're going to get exceptions on */ | |
| 179 retval = mach_port_allocate (task_self, MACH_PORT_RIGHT_RECEIVE, &exc_port); | |
| 180 if (retval != KERN_SUCCESS) | |
| 181 { | |
| 182 fprintf (stderr, "Couldn't allocate exception port: %s\n", | |
| 183 mach_error_string (retval)); | |
| 184 ABORT (); | |
| 185 } | |
| 186 | |
| 187 /* extract out the send rights for that port, which the OS needs */ | |
| 188 retval = mach_port_extract_right (task_self, exc_port, | |
| 189 MACH_MSG_TYPE_MAKE_SEND, | |
| 190 &exc_port_s, &type); | |
| 191 if(retval != KERN_SUCCESS) | |
| 192 { | |
| 193 fprintf (stderr, "Couldn't extract send rights: %s\n", | |
| 194 mach_error_string (retval)); | |
| 195 ABORT (); | |
| 196 } | |
| 197 | |
| 198 /* set the exception ports for this thread to the above */ | |
| 199 retval = thread_set_exception_ports(thread_self, EXC_MASK_BAD_ACCESS, | |
| 200 exc_port_s, EXCEPTION_DEFAULT, | |
| 201 PPC_THREAD_STATE); | |
| 202 if(retval != KERN_SUCCESS) | |
| 203 { | |
| 204 fprintf (stderr, "Couldn't set exception ports: %s\n", | |
| 205 mach_error_string (retval)); | |
| 206 ABORT (); | |
| 207 } | |
| 208 | |
| 209 /* set up the subthread */ | |
| 210 retval = thread_create(task_self, &exc_thread); | |
| 211 if(retval != KERN_SUCCESS) | |
| 212 { | |
| 213 fprintf (stderr , "Couldn't create exception thread: %s\n", | |
| 214 mach_error_string (retval)); | |
| 215 ABORT (); | |
| 216 } | |
| 217 subthread_stack = (void *) malloc (page_size); | |
| 218 subthread_stack = | |
| 219 (char *) subthread_stack + (page_size - C_ARGSAVE_LEN - C_RED_ZONE); | |
| 220 exc_thread_state = | |
| 221 (ppc_thread_state_t *) malloc (sizeof (ppc_thread_state_t)); | |
| 222 exc_thread_state->srr0 = (unsigned int) exception_thread; | |
| 223 exc_thread_state->r1 = (unsigned int) subthread_stack; | |
| 224 retval = thread_set_state (exc_thread, PPC_THREAD_STATE, | |
| 225 (thread_state_t) exc_thread_state, | |
| 226 PPC_THREAD_STATE_COUNT); | |
| 227 if (retval != KERN_SUCCESS) | |
| 228 { | |
| 229 fprintf (stderr, "Couldn't set subthread state: %s\n", | |
| 230 mach_error_string (retval)); | |
| 231 ABORT (); | |
| 232 } | |
| 233 retval = thread_resume (exc_thread); | |
| 234 if (retval != KERN_SUCCESS) | |
| 235 { | |
| 236 fprintf (stderr, "Couldn't resume subthread: %s\n", | |
| 237 mach_error_string (retval)); | |
| 238 ABORT (); | |
| 239 } | |
| 240 allow_incremental_gc = 1; | |
| 241 } | |
| 242 | |
| 243 void | |
| 244 vdb_protect (void *ptr, EMACS_INT len) | |
| 245 { | |
| 246 if (mprotect (ptr, len, PROT_READ)) | |
| 247 { | |
| 248 perror ("Couldn't mprotect"); | |
| 249 ABORT (); | |
| 250 } | |
| 251 } | |
| 252 | |
| 253 void | |
| 254 vdb_unprotect (void *ptr, EMACS_INT len) | |
| 255 { | |
| 256 if (mprotect (ptr, len, PROT_READ | PROT_WRITE)) | |
| 257 { | |
| 258 perror ("Couldn't mprotect"); | |
| 259 ABORT (); | |
| 260 } | |
| 261 } |