| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: sw_arch.h,v 1.1 1999/06/02 16:53:35 mdw Exp $ |
| 4 | * |
| 5 | * Messing with architectures |
| 6 | * |
| 7 | * (c) 1999 EBI |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of sw-tools. |
| 13 | * |
| 14 | * sw-tools is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * sw-tools is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with sw-tools; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Revision history --------------------------------------------------* |
| 30 | * |
| 31 | * $Log: sw_arch.h,v $ |
| 32 | * Revision 1.1 1999/06/02 16:53:35 mdw |
| 33 | * Initial revision |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #ifndef SW_ARCH_H |
| 38 | #define SW_ARCH_H |
| 39 | |
| 40 | #ifdef __cplusplus |
| 41 | extern "C" { |
| 42 | #endif |
| 43 | |
| 44 | /*----- Header files ------------------------------------------------------*/ |
| 45 | |
| 46 | #include <mLib/dstr.h> |
| 47 | |
| 48 | /*----- Data structures ---------------------------------------------------*/ |
| 49 | |
| 50 | /* --- @archcons@ --- * |
| 51 | * |
| 52 | * Links architectures into a list. It's done like this so that we can have |
| 53 | * multiple lists all referring to the same data. |
| 54 | */ |
| 55 | |
| 56 | typedef struct archcons { |
| 57 | struct archent *car; |
| 58 | struct archcons *cdr; |
| 59 | } archcons; |
| 60 | |
| 61 | /* --- @archent@ --- * |
| 62 | * |
| 63 | * Records information extracted from the `archtab' file, together with some |
| 64 | * other data used at run-time for the parallel build stuff. |
| 65 | */ |
| 66 | |
| 67 | typedef struct archent { |
| 68 | struct archcons cons; /* Cons for linking these together */ |
| 69 | char *arch; /* The architecture name */ |
| 70 | char *host; /* The architecture representative */ |
| 71 | int status; /* Exit status from build process */ |
| 72 | struct sw_remote *r; /* Remote command control block */ |
| 73 | void *pres; /* Data for presentation handler */ |
| 74 | unsigned flags; /* Various other flags */ |
| 75 | } archent; |
| 76 | |
| 77 | /* --- Flags --- */ |
| 78 | |
| 79 | enum { |
| 80 | archFlag_touched = 1, /* Unique flag: see @arch_filter@ */ |
| 81 | archFlag_built = 2, /* This architecture is up-to-date */ |
| 82 | archFlag_home = 4 /* This is the current arch */ |
| 83 | }; |
| 84 | |
| 85 | /*----- Functions provided ------------------------------------------------*/ |
| 86 | |
| 87 | /* --- @arch_readtab@ --- * |
| 88 | * |
| 89 | * Arguments: --- |
| 90 | * |
| 91 | * Returns: The address of the archtab list. |
| 92 | * |
| 93 | * Use: Reads the archtab file (if necessary) and returns a list of |
| 94 | * its contents. |
| 95 | */ |
| 96 | |
| 97 | extern archcons *arch_readtab(void); |
| 98 | |
| 99 | /* --- @arch_lookup@ --- * |
| 100 | * |
| 101 | * Arguments: @const char *arch@ = pointer to archtecture name |
| 102 | * @int abbrev@ = whether abbreviations are OK |
| 103 | * |
| 104 | * Returns: Pointer to archtab block, or null. |
| 105 | * |
| 106 | * Use: Translates an architecture name into the name of a host |
| 107 | * supporting that architecture. |
| 108 | */ |
| 109 | |
| 110 | extern archent *arch_lookup(const char */*arch*/, int /*abbrev*/); |
| 111 | |
| 112 | /* --- @arch_filter@ --- * |
| 113 | * |
| 114 | * Arguments: @archcons *a@ = input list to filter |
| 115 | * @const char *p@ = pointer to a textual list of architectures |
| 116 | * @unsigned and@, @unsigned xor@ = flags to look for |
| 117 | * |
| 118 | * Returns: A newly constructed architecture list containing only the |
| 119 | * listed architectures. |
| 120 | * |
| 121 | * Use: Filters the architecture list down to a few interesting |
| 122 | * architectures. |
| 123 | * |
| 124 | * If @p@ is non-null, it is a textual list of architecture |
| 125 | * names (possibly abbreviated), and separated by whitespace |
| 126 | * and/or commas: only the named architectures are included in |
| 127 | * the resulting list. If @p@ is null, all architectures are |
| 128 | * considered. |
| 129 | * |
| 130 | * The list is further trimmed down by examining the flags words |
| 131 | * in each entry. Only entries with flags @f@ where @(f ^ xor) |
| 132 | * & and@ is zero are left in the resulting list. (To include |
| 133 | * all entries, clear @and@ to zero. To require a flag to be |
| 134 | * clear, set the corresponding bit in @and@. To require a flag |
| 135 | * to be set, set the corresponding bit in both @and@ and @xor@. |
| 136 | * |
| 137 | * (Don't try to filter on the @archFlag_touched@ flag. That |
| 138 | * flag is for the internal use of this routine.) |
| 139 | */ |
| 140 | |
| 141 | extern archcons *arch_filter(archcons */*a*/, const char */*p*/, |
| 142 | unsigned /*and*/, unsigned /*xor*/); |
| 143 | |
| 144 | /* --- @arch_free@ --- * |
| 145 | * |
| 146 | * Arguments: @archcons *a@ = pointer to a list |
| 147 | * |
| 148 | * Returns: --- |
| 149 | * |
| 150 | * Use: Contrary to anything you might have expected from the Lispy |
| 151 | * naming, old architecture lists don't get garbage collected. |
| 152 | * This routine throws away an old list when you don't want it |
| 153 | * any more. Don't call this on the main list! It will fail |
| 154 | * miserably, because the cons cells in the main list are |
| 155 | * faked. |
| 156 | */ |
| 157 | |
| 158 | extern void arch_free(archcons */*a*/); |
| 159 | |
| 160 | /* --- @arch_toText@ --- * |
| 161 | * |
| 162 | * Arguments: @dstr *d@ = pointer to dynamic string to build result in |
| 163 | * @archcons *a@ = list to write into the string |
| 164 | * @unsigned and@, @unsigned xor@ = flags to look for |
| 165 | * |
| 166 | * Returns: --- |
| 167 | * |
| 168 | * Use: Writes a textual list of architectures to a string. This can |
| 169 | * then be used (for example) as the `only-arch' list in the |
| 170 | * info file, by filling it into a skeleton and calling |
| 171 | * @swinfo_update@. The @and@ and @xor@ arguments work in the |
| 172 | * same way as with @arch_filter@. |
| 173 | */ |
| 174 | |
| 175 | extern void arch_toText(dstr */*d*/, archcons */*a*/, |
| 176 | unsigned /*and*/, unsigned /*xor*/); |
| 177 | |
| 178 | /* --- Subcommands --- */ |
| 179 | |
| 180 | extern int sw_arch(int /*argc*/, char */*argv*/[]); |
| 181 | extern int sw_listarch(int /*argc*/, char */*argv*/[]); |
| 182 | extern int sw_host(int /*argc*/, char */*argv*/[]); |
| 183 | extern int sw_only(int /*argc*/, char */*argv*/[]); |
| 184 | extern int sw_all(int /*argc*/, char */*argv*/[]); |
| 185 | |
| 186 | #ifdef CMD_LINK |
| 187 | static cmd cmd_only = { |
| 188 | CMD_LINK, "only-arch", sw_only, |
| 189 | "only-arch ARCH,...\n\ |
| 190 | Restrict builds to a selection of architectures. (This option is\n\ |
| 191 | persistent. An `--arch' command-line option takes precedence,\n\ |
| 192 | though.)\n" |
| 193 | }; |
| 194 | static cmd cmd_all = { |
| 195 | &cmd_only, "all-arch", sw_all, |
| 196 | "all-arch\n\ |
| 197 | Clears the `only-arch' list. Subsequent builds occur across all\n\ |
| 198 | architectures.\n" |
| 199 | }; |
| 200 | static cmd cmd_host = { |
| 201 | &cmd_all, "host", sw_host, |
| 202 | "host ARCH\n\ |
| 203 | Display the name of a host supporting architecture ARCH.\n" |
| 204 | }; |
| 205 | static cmd cmd_listarch = { |
| 206 | &cmd_host, "listarch", sw_listarch, |
| 207 | "listarch\n\ |
| 208 | Display a list of all architectures known.\n" |
| 209 | }; |
| 210 | static cmd cmd_arch = { |
| 211 | &cmd_listarch, "arch", sw_arch, |
| 212 | "arch\tDisplay the architecture name of the current host.\n" |
| 213 | }; |
| 214 | # undef CMD_LINK |
| 215 | # define CMD_LINK &cmd_arch |
| 216 | #endif |
| 217 | |
| 218 | /*----- That's all, folks -------------------------------------------------*/ |
| 219 | |
| 220 | #ifdef __cplusplus |
| 221 | } |
| 222 | #endif |
| 223 | |
| 224 | #endif |