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KOLIBRI: Add a launch wrapper

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Exporting symbols from main binary is cumbersome on KolibriOS but importing
from another dll is fine. So we make scummvm core into a dll and add a thin
launcher for it.
This commit is contained in:
Vladimir Serbinenko 2023-01-26 05:45:23 +01:00 • committed by Eugene Sandulenko
parent 73d935451c
commit 589ca41e27
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1 changed files with 56 additions and 0 deletions
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backends/platform/sdl/kolibrios/wrapper-main.c Normal file
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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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.
*
* This program 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 <kos32sys.h>
#include <stdio.h>
/* This is just a small wrapper so that the main scummvm is loaded as dll. */
int kolibrios_main(int argc, char *argv[]);
int main(int argc, char *argv[]) {
printf("Loading SCUMMVM\n");
if (argc < 1 || strnlen(argv[0], 3005) > 3000) {
fprintf(stderr, "Couldn't determine exe path");
return 1;
}
const char *r = strrchr(argv[0], '/');
static char dllName[4000];
int p = 0;
if (r) {
p = r - argv[0] + 1;
memcpy(dllName, argv[0], p);
}
memcpy(dllName + p, "scummvm.dll", sizeof("scummvm.dll"));
void *dlHandle = load_library(dllName);
if (!dlHandle) {
fprintf(stderr, "Couldn't load %s", dllName);
return 2;
}
void (*kolibrios_main) (int argc, char *argv[]) = get_proc_address(dlHandle, "kolibrios_main");
if (!kolibrios_main) {
fprintf(stderr, "Failed to located kolibrios_main");
return 3;
}
kolibrios_main(argc, argv);
}