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