Mercurial > hg > xemacs-beta
annotate src/vdb-win32.c @ 5602:c9e5612f5424
Support the MP library on recent FreeBSD, have it pass relevant tests.
src/ChangeLog addition:
2011-11-26 Aidan Kehoe <kehoea@parhasard.net>
* number-mp.c (bignum_to_string):
Don't overwrite the accumulator we've just set up for this
function.
* number-mp.c (BIGNUM_TO_TYPE):
mp_itom() doesn't necessarily do what this code used to think with
negative numbers, it can treat them as unsigned ints. Subtract
numbers from bignum_zero instead of multiplying them by -1 to
convert them to their negative equivalents.
* number-mp.c (bignum_to_int):
* number-mp.c (bignum_to_uint):
* number-mp.c (bignum_to_long):
* number-mp.c (bignum_to_ulong):
* number-mp.c (bignum_to_double):
Use the changed BIGNUM_TO_TYPE() in these functions.
* number-mp.c (bignum_ceil):
* number-mp.c (bignum_floor):
In these functions, be more careful about rounding to positive and
negative infinity, respectively. Don't use the sign of QUOTIENT
when working out out whether to add or subtract one, rather use
the sign QUOTIENT would have if arbitrary-precision division were
done.
* number-mp.h:
* number-mp.h (MP_GCD):
Wrap #include <mp.h> in BEGIN_C_DECLS/END_C_DECLS.
* number.c (Fbigfloat_get_precision):
* number.c (Fbigfloat_set_precision):
Don't attempt to call XBIGFLOAT_GET_PREC if this build doesn't
support big floats.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 26 Nov 2011 17:59:14 +0000 |
| parents | 308d34e9f07d |
| children |
| 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 | |
|
5402
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
5042
diff
changeset
|
6 XEmacs is free software: you can redistribute it and/or modify it |
| 3092 | 7 under the terms of the GNU General Public License as published by the |
|
5402
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
5042
diff
changeset
|
8 Free Software Foundation, either version 3 of the License, or (at your |
|
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
5042
diff
changeset
|
9 option) any later version. |
| 3092 | 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 | |
|
5402
308d34e9f07d
Changed bulk of GPLv2 or later files identified by script
Mats Lidell <matsl@xemacs.org>
parents:
5042
diff
changeset
|
17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 3092 | 18 |
| 19 /* Synched up with: Not in FSF. */ | |
| 20 | |
| 21 #include <config.h> | |
| 22 #include "lisp.h" | |
| 23 #include "gc.h" | |
| 24 #include "mc-alloc.h" | |
| 25 #include "vdb.h" | |
| 26 | |
| 27 #include "syswindows.h" | |
| 28 | |
| 29 | |
|
5042
f395ee7ad844
Fix some compile warnings, make vdb test code conditional on DEBUG_XEMACS
Ben Wing <ben@xemacs.org>
parents:
4827
diff
changeset
|
30 static LONG WINAPI |
| 3092 | 31 win32_fault_handler (LPEXCEPTION_POINTERS e) |
| 32 { | |
| 33 #define GET_FAULT_ADDRESS (void *) e->ExceptionRecord->ExceptionInformation[1] | |
| 34 if ((e->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION) | |
| 35 && (e->ExceptionRecord->ExceptionInformation[0] == 1) | |
| 36 && write_barrier_enabled | |
| 37 && (fault_on_protected_page (GET_FAULT_ADDRESS))) | |
| 38 { | |
| 39 vdb_designate_modified (GET_FAULT_ADDRESS); | |
| 40 unprotect_page_and_mark_dirty (GET_FAULT_ADDRESS); | |
| 41 return EXCEPTION_CONTINUE_EXECUTION; | |
| 42 } | |
| 43 else | |
| 44 return EXCEPTION_CONTINUE_SEARCH; | |
| 45 } | |
| 46 | |
|
4827
11daf37dae4d
more fixes to get a clean compile
Ben Wing <ben@xemacs.org>
parents:
3092
diff
changeset
|
47 typedef LONG (WINAPI *gcPVECTORED_EXCEPTION_HANDLER) (LPEXCEPTION_POINTERS e); |
| 3092 | 48 |
| 49 | |
| 50 void | |
| 51 vdb_install_signal_handler (void) | |
| 52 { | |
| 53 HMODULE hm; | |
| 54 PVOID (WINAPI *aveh) (ULONG, gcPVECTORED_EXCEPTION_HANDLER); | |
| 55 | |
| 56 /* See init_signals_very_early () in signal.c. */ | |
| 57 if (noninteractive && !initialized) | |
| 58 { | |
| 59 allow_incremental_gc = 0; | |
| 60 return; | |
| 61 } | |
| 62 | |
| 63 hm = qxeGetModuleHandle (XETEXT ("kernel32")); | |
| 64 if (hm) | |
| 65 aveh = (PVOID (WINAPI *) (ULONG, gcPVECTORED_EXCEPTION_HANDLER)) | |
| 66 GetProcAddress (hm, "AddVectoredExceptionHandler"); | |
| 67 else | |
| 68 { | |
| 69 fprintf (stderr, "\nFAILED TO LOAD LIBRARY\n"); | |
| 70 aveh = NULL; | |
| 71 } | |
| 72 if (aveh) | |
| 73 { | |
| 74 allow_incremental_gc = 1; | |
| 75 aveh (TRUE, win32_fault_handler); | |
| 76 } | |
| 77 else | |
| 78 { | |
| 79 fprintf (stderr, "\nFAILED TO INSTALL SIGNAL HANDLER\n"); | |
| 80 ABORT (); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 | |
| 85 void | |
| 86 vdb_protect (void *ptr, EMACS_INT len) | |
| 87 { | |
| 88 DWORD old; | |
| 89 VirtualProtect (ptr, len, PAGE_READONLY, &old); | |
| 90 } | |
| 91 | |
| 92 | |
| 93 void | |
| 94 vdb_unprotect (void *ptr, EMACS_INT len) | |
| 95 { | |
| 96 DWORD old; | |
| 97 VirtualProtect (ptr, len, PAGE_READWRITE, &old); | |
| 98 } |