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This commit is contained in:
Jim Blandy 1991-07-26 21:30:07 +00:00
parent b82fef5c42
commit e772f7cd52
1 changed files with 56 additions and 0 deletions
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src/puresize.h Normal file
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/* How much read-only Lisp storage a dumped Emacs needs.
Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* # bytes of pure Lisp code to leave space for.
At one point, this was defined in config.h, meaning that changing
PURESIZE would make Make recompile all of Emacs. But only a few
files actually use PURESIZE, so we split it out to its own .h file. */
#define PURESIZE 200000
#ifdef VIRT_ADDR_VARIES
/* For machines like APOLLO where text and data can go anywhere
in virtual memory. */
#define CHECK_IMPURE(obj) \
{ extern int pure[]; \
if ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) ((char *) pure + PURESIZE) \
&& (PNTR_COMPARISON_TYPE) XPNTR (obj) >= (PNTR_COMPARISON_TYPE) pure) \
pure_write_error (); }
#else /* not VIRT_ADDR_VARIES */
#ifdef PNTR_COMPARISON_TYPE
/* when PNTR_COMPARISON_TYPE is not the default (unsigned int) */
#define CHECK_IMPURE(obj) \
{ extern int my_edata; \
if ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) &my_edata) \
pure_write_error (); }
#else /* not VIRT_ADDRESS_VARIES, not PNTR_COMPARISON_TYPE */
#define CHECK_IMPURE(obj) \
{ extern int my_edata; \
if (XPNTR (obj) < (unsigned int) &my_edata) \
pure_write_error (); }
#endif /* PNTR_COMPARISON_TYPE */
#endif /* VIRT_ADDRESS_VARIES */