ruby.git/dln.h, branch v3_2_11

Removed dln_a_out

2021-03-24T11:13:55+00:00

a.out format is considered extinct nowadays.

dln.h: delete unused codes

2020-07-23T05:30:12+00:00

defines.h already has them.  Also __cplusplus can never be defined here.

add #include guard hack

2020-04-13T07:06:00+00:00

According to MSVC manual (*1), cl.exe can skip including a header file
when that:

- contains #pragma once, or
- starts with #ifndef, or
- starts with #if ! defined.

GCC has a similar trick (*2), but it acts more stricter (e. g. there
must be _no tokens_ outside of #ifndef...#endif).

Sun C lacked #pragma once for a looong time.  Oracle Developer Studio
12.5 finally implemented it, but we cannot assume such recent version.

This changeset modifies header files so that each of them include
strictly one #ifndef...#endif.  I believe this is the most portable way
to trigger compiler optimizations. [Bug #16770]

*1: https://docs.microsoft.com/en-us/cpp/preprocessor/once
*2: https://gcc.gnu.org/onlinedocs/cppinternals/Guard-Macros.html

decouple internal.h headers

2019-12-26T11:45:12+00:00

Saves comitters' daily life by avoid #include-ing everything from
internal.h to make each file do so instead.  This would significantly
speed up incremental builds.

We take the following inclusion order in this changeset:

1.  "ruby/config.h", where _GNU_SOURCE is defined (must be the very
    first thing among everything).
2.  RUBY_EXTCONF_H if any.
3.  Standard C headers, sorted alphabetically.
4.  Other system headers, maybe guarded by #ifdef
5.  Everything else, sorted alphabetically.

Exceptions are those win32-related headers, which tend not be self-
containing (headers have inclusion order dependencies).

dln.c: extra arguments

2013-06-30T01:58:51+00:00

* dln.h (DLN_FIND_EXTRA_ARG, DLN_FIND_EXTRA_ARG_DECL): allow extra
  arguments to dln_find_{exe,file}_r().
* dln_find.c (dln_find_exe_r, dln_find_file_r): add extract arguments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41702 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

dln_find.c: deprecated functions

2013-06-02T07:15:55+00:00

* dln_find.c (dln_find_exe, dln_find_file): remove deprecated
  non-reentrant functions.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41032 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

defines.h: RUBY_SYMBOL_EXPORT_{BEGIN,END}

2013-04-05T10:29:38+00:00

* include/ruby/defines.h (RUBY_SYMBOL_EXPORT_{BEGIN,END}): visibility
  control macros.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* configure.in (XCFLAGS): use -fvisibility=hidden if possible.

2010-07-21T21:38:25+00:00

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28709 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* dln.c (init_funcname_len, dln_find_exe_r, dln_find_file_r): use

2009-03-14T01:56:15+00:00

  size_t.

* file.c (rb_stat_inspect, file_expand_path): ditto.

* util.c (ruby_qsort): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22943 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* dln.h (dln_find_exe, dln_find_file): deprecated, use reentrant

2008-07-27T00:15:31+00:00

  versions instead.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e