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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 77e2b8dfacca |
| children |
| rev | line source |
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| 0 | 1 This directory contains the -liberty library of free software. |
| 2 It is a collection of subroutines used by various GNU programs. | |
| 3 Current members include: | |
| 4 | |
| 5 getopt -- get options from command line | |
| 6 obstack -- stacks of arbitrarily-sized objects | |
| 7 strerror -- error message strings corresponding to errno | |
| 8 strtol -- string-to-long conversion | |
| 9 strtoul -- string-to-unsigned-long conversion | |
| 10 | |
| 11 We expect many of the GNU subroutines that are floating around to | |
| 12 eventually arrive here. | |
| 13 | |
| 14 The library must be configured from the top source directory. Don't | |
| 15 try to run configure in this directory. Follow the configuration | |
| 16 instructions in ../README. | |
| 17 | |
| 18 Please report bugs to "gcc-bugs@gcc.gnu.org" and send fixes to | |
| 19 "gcc-patches@gcc.gnu.org". Thank you. | |
| 20 | |
| 21 ADDING A NEW FILE | |
| 22 ================= | |
| 23 | |
| 24 There are two sets of files: Those that are "required" will be | |
| 25 included in the library for all configurations, while those | |
| 26 that are "optional" will be included in the library only if "needed." | |
| 27 | |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
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28 To add a new required file, edit Makefile.in to add the source file |
| 0 | 29 name to CFILES and the object file to REQUIRED_OFILES. |
| 30 | |
| 31 To add a new optional file, it must provide a single function, and the | |
| 32 name of the function must be the same as the name of the file. | |
| 33 | |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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34 * Add the source file name to CFILES in Makefile.in and the object |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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35 file to CONFIGURED_OFILES. |
| 0 | 36 |
| 37 * Add the function to name to the funcs shell variable in | |
| 38 configure.ac. | |
| 39 | |
| 40 * Add the function to the AC_CHECK_FUNCS lists just after the | |
| 41 setting of the funcs shell variable. These AC_CHECK_FUNCS calls | |
| 42 are never executed; they are there to make autoheader work | |
| 43 better. | |
| 44 | |
| 45 * Consider the special cases of building libiberty; as of this | |
| 46 writing, the special cases are newlib and VxWorks. If a | |
| 47 particular special case provides the function, you do not need | |
| 48 to do anything. If it does not provide the function, add the | |
| 49 object file to LIBOBJS, and add the function name to the case | |
| 50 controlling whether to define HAVE_func. | |
| 51 | |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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52 Finally, in the build directory of libiberty, configure with |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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53 "--enable-maintainer-mode", run "make maint-deps" to update |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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54 Makefile.in, and run 'make stamp-functions' to regenerate |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
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55 functions.texi. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
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56 |
| 0 | 57 The optional file you've added (e.g. getcwd.c) should compile and work |
| 58 on all hosts where it is needed. It does not have to work or even | |
| 59 compile on hosts where it is not needed. | |
| 60 | |
| 61 ADDING A NEW CONFIGURATION | |
| 62 ========================== | |
| 63 | |
| 64 On most hosts you should be able to use the scheme for automatically | |
| 65 figuring out which files are needed. In that case, you probably | |
| 66 don't need a special Makefile stub for that configuration. | |
| 67 | |
| 68 If the fully automatic scheme doesn't work, you may be able to get | |
| 69 by with defining EXTRA_OFILES in your Makefile stub. This is | |
| 70 a list of object file names that should be treated as required | |
| 71 for this configuration - they will be included in libiberty.a, | |
| 72 regardless of whatever might be in the C library. |