annotate src/m/intel386.h @ 4539:061e030e3270

Fix some bugs in load-history construction, built-in symbol file names. lib-src/ChangeLog addition: 2008-12-27 Aidan Kehoe <kehoea@parhasard.net> * make-docfile.c (main): Allow more than one -d argument, followed by a directory to change to. (put_filename): Don't strip directory information; with previous change, allows retrieval of Lisp function and variable origin files from #'built-in-symbol-file relative to lisp-directory. (scan_lisp_file): Don't add an extraneous newline after the file name, put_filename has added the newline already. lisp/ChangeLog addition: 2008-12-27 Aidan Kehoe <kehoea@parhasard.net> * loadup.el (load-history): Add the contents of current-load-list to load-history before clearing it. Move the variable declarations earlier in the file to a format understood by make-docfile.c. * custom.el (custom-declare-variable): Add the variable's symbol to the current file's load history entry correctly, don't use a cons. Eliminate a comment that we don't need to worry about, we don't need to check the `initialized' C variable in Lisp. * bytecomp.el (byte-compile-output-file-form): Merge Andreas Schwab's pre-GPLv3 GNU change of 19970831 here; treat #'custom-declare-variable correctly, generating the docstrings in a format understood by make-docfile.c. * loadhist.el (symbol-file): Correct behaviour for checking autoloaded macros and functions when supplied with a TYPE argument. Accept fully-qualified paths from #'built-in-symbol-file; if a path is not fully-qualified, return it relative to lisp-directory if the filename corresponds to a Lisp file, and relative to (concat source-directory "/src/") otherwise. * make-docfile.el (preloaded-file-list): Rationalise some let bindings a little. Use the "-d" argument to make-docfile.c to supply Lisp paths relative to lisp-directory, not absolutely. Add in loadup.el explicitly to the list of files to be processed by make-docfile.c--it doesn't make sense to add it to preloaded-file-list, since that is used for purposes of byte-compilation too. src/ChangeLog addition: 2008-12-27 Aidan Kehoe <kehoea@parhasard.net> * doc.c (Fbuilt_in_symbol_file): Return a subr's filename immediately if we've found it. Check for compiled function and compiled macro docstrings in DOC too, and return them if they exist. The branch of the if statement focused on functions may have executed, but we may still want to check variable bindings; an else clause isn't appropriate.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 27 Dec 2008 14:05:50 +0000
parents ecf1ebac70d8
children aa5ed11f473b
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1 /* Machine description file for intel 386.
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2 Copyright (C) 1987 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.31. */
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22
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23 /* The following line tells the configuration script what sort of
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24 operating system this machine is likely to run.
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25 USUAL-OPSYS="note"
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26
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27 NOTE-START
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28 Intel 386 (-machine=intel386 or -machine=is386.h)
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29
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30 The possibilities for -opsystem are: bsd4-2, usg5-2-2, usg5-3,
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31 isc2-2, 386-ix, esix, linux, sco3.2v4, and xenix.
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32
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33 18.58 should support a wide variety of operating systems.
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34 Use isc2-2 for Interactive 386/ix version 2.2.
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35 Use 386ix for prior versions.
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36 Use esix for Esix.
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37 Use linux for Linux.
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38 It isn't clear what to do on an SCO system.
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39
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40 -machine=is386 is used for an Integrated Solutions 386 machine.
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41 It may also be correct for Microport systems.
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42
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43 Cubix QBx/386 (-machine=intel386 -opsystem=usg5-3)
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44
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45 Changes merged in 19.1. Systems before 2/A/0 may fail to compile etags.c
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46 due to a compiler bug.
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47
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48 Prime EXL (-machine=intel386 -opsystem=usg5-3)
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49
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50 Minor changes merged in 19.1.
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51 NOTE-END */
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52
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53 /* Now define a symbol for the cpu type, if your compiler
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54 does not define it automatically:
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55 Ones defined so far include vax, m68000, ns16000, pyramid,
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56 orion, tahoe, APOLLO and many others */
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57
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58 #define INTEL386
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59
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60 /* crt0.c, if it is used, should use the i386-bsd style of entry.
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61 with no extra dummy args. On USG and XENIX,
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62 NO_REMAP says this isn't used. */
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63
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64 /* Mly 16-Jan-96 16:38:32: this is part of a prototype -- same bug present in
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65 other m*.h files */
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66 #define CRT0_DUMMIES int bogus_fp,
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67
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68 /* crt0.c should define a symbol `start' and do .globl with a dot. */
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69
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70 #define DOT_GLOBAL_START
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71
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72 #ifdef XENIX
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73 /* Data type of load average, as read out of kmem. */
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74 #define LOAD_AVE_TYPE short
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75
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76 /* Convert that into an integer that is 100 for a load average of 1.0 */
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77 #define LOAD_AVE_CVT(x) (((double) (x)) * 100.0 / FSCALE)
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78
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79 #define FSCALE 256.0 /* determined by experimentation... */
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80 #endif
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81
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82
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83 #ifdef SOLARIS2
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84 /* Data type of load average, as read out of kmem. */
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85 #define LOAD_AVE_TYPE long
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86
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87 /* Convert that into an integer that is 100 for a load average of 1.0 */
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88 /* This is totally uncalibrated. */
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89 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
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90
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91 /* configure thinks solaris X86 has gethostname, but it does not work,
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92 so undefine it. */
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93 #undef HAVE_GETHOSTNAME
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94
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95 #else /* not SOLARIS2 */
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96 #ifdef USG5_4 /* Older USG systems do not support the load average. */
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97 /* Data type of load average, as read out of kmem. */
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98
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99 #define LOAD_AVE_TYPE long
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100
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101 /* Convert that into an integer that is 100 for a load average of 1.0 */
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102 /* This is totally uncalibrated. */
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103
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104 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
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105 #define FSCALE 256.0
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106 #endif
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107 #endif /* not SOLARIS2 */
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108
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109 #ifdef XENIX
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110
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111 /* Define NO_REMAP if memory segmentation makes it not work well
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112 to change the boundary between the text section and data section
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113 when Emacs is dumped. If you define this, the preloaded Lisp
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114 code will not be sharable; but that's better than failing completely. */
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115
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116 #define NO_REMAP
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117
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118 /* Since cannot purify, use standard Xenix 386 startup code. */
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119
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120 #define START_FILES "/lib/386/Sseg.o pre-crt0.o /lib/386/Scrt0.o"
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121
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122 /* These really use terminfo. */
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123
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124 #define LIBS_TERMCAP "/lib/386/Slibcurses.a /lib/386/Slibtinfo.a /lib/386/Slibx.a"
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125
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126 /* Standard libraries for this machine. Since `-l' doesn't work in `ld'. */
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127 /* '__fltused' is unresolved w/o Slibcfp.a */
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128 #define LIB_STANDARD "/lib/386/Slibcfp.a /lib/386/Slibc.a"
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129 #else /* not XENIX */
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130
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131 #ifdef USG
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132
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133 #define NO_REMAP
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134 #define TEXT_START 0
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135 #endif /* USG */
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136 #endif /* not XENIX */
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137
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138 #ifdef linux
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139 /* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */
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140 /* we cannot get the maximum address for brk */
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141 #define ULIMIT_BREAK_VALUE (32*1024*1024)
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142
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143 #define SEGMENT_MASK ((SEGMENT_SIZE)-1)
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144 #endif