make-dfsg/loadapi.c
Eli Zaretskii a66469e003 Fix interfacing with and remaking dynamic objects on MS-Windows.
load.c (load_object, load_file): Accept an additional argument
 DLP and return in it a pointer that can be used to unload the
 dynamic object.
 read.c (eval): Call load_file with an additional argument, and
 record the pointer returned there in the 'struct file' object of
 dynamic objects in that object's 'struct file'.
 commands.c (execute_file_commands): Unload dynamic objects
 before remaking them, to avoid failure to remake if the OS doesn't
 allow overwriting objects that are in use.
 filedef.h (struct file): New member dlopen_ptr.
 gnumake.h (GMK_EXPORT): Define to dllexport/dllimport
 decorations for Windows and to nothing on other platforms.
 (gmk_eval, gmk_expand, gmk_add_function): Add GMK_EXPORT qualifier
 to prototypes.
 makeint.h (MAIN): Define before including gnumake.h, to give
 correct dllexport decorations to exported functions.
 (load_file): Adjust prototype.
 loadapi.c: Don't include gnumake.h, since makeint.h already
 includes it, and takes care of defining MAIN before doing so.
 build_w32.bat (LinkGCC): Produce an import library for functions
 exported by Make for loadable dynamic objects.

 w32/compat/posixfcn.c (dlclose): New function.
 w32/include/dlfcn.h (dlclose): Add prototype.

 scripts/features/load: Fix signatures of testload_gmk_setup and
 explicit_setup, to bring them in line with the documentation.
2013-05-03 16:09:12 +03:00

48 lines
1.5 KiB
C

/* API for GNU Make dynamic objects.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.
GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>. */
#include "makeint.h"
#include "filedef.h"
#include "variable.h"
#include "dep.h"
/* Evaluate a buffer as make syntax.
Ideally eval_buffer() will take const char *, but not yet. */
void
gmk_eval (const char *buffer, const gmk_floc *floc)
{
char *s = xstrdup (buffer);
eval_buffer (s, floc);
free (s);
}
/* Expand a string and return an allocated buffer.
Caller must free() this buffer. */
char *
gmk_expand (const char *ref)
{
return allocated_variable_expand (ref);
}
/* Register a function to be called from makefiles. */
void
gmk_add_function (const char *name,
char *(*func)(const char *nm, int argc, char **argv),
int min, int max, int expand)
{
define_new_function (reading_file, name, min, max, expand, func);
}