Changed the workaround for MiniMetro/Steam, using rcfile now (for #1311)

Author: ptitSeb

src/core.c

@@ -55,6 +55,7 @@ int box64_cefdisablegpu = 0;
 int box64_cefdisablegpucompositor = 0;
 int box64_malloc_hack = 0;
 int box64_dynarec_test = 0;
+path_collection_t box64_addlibs = {0};
 int box64_maxcpu = 0;
 int box64_maxcpu_immutable = 0;
 #if defined(SD845) || defined(SD888) || defined(SD8G2) || defined(TEGRAX1)
@@ -1195,6 +1196,12 @@ int GatherEnv(char*** dest, char** env, char* prog)
     return 0;
 }
 
+void AddNewLibs(const char* list)
+{
+    AppendList(&box64_addlibs, list, 0);
+    printf_log(LOG_INFO, "BOX64: Adding %s to the libs\n", list);
+}
+
 void PrintFlags() {
 	printf("Environment Variables:\n");
     printf(" BOX64_PATH is the box64 version of PATH (default is '.:bin')\n");
@@ -1369,6 +1376,9 @@ void LoadEnvVars(box64context_t *context)
             printf_log(LOG_INFO, "BOX64: Disabling handling of SigILL\n");
         }
     }
+    if(getenv("BOX64_ADDLIBS")) {
+        AddNewLibs(getenv("BOX64_ADDLIBS"));
+    }
     // check BOX64_PATH and load it
     LoadEnvPath(&context->box64_path, ".:bin", "BOX64_PATH");
     if(getenv("PATH"))
@@ -1834,24 +1844,23 @@ int initialize(int argc, const char **argv, char** env, x64emu_t** emulator, elf
                 printf_log(LOG_INFO, "%s ", ld_preload.paths[i]);
             printf_log(LOG_INFO, "\n");
         }
-    } else {
-        if(getenv("LD_PRELOAD")) {
-            char* p = getenv("LD_PRELOAD");
-            if(strstr(p, "libtcmalloc_minimal.so.0"))
-                box64_tcmalloc_minimal = 1;
-            if(strstr(p, "libtcmalloc_minimal.so.4"))
-                box64_tcmalloc_minimal = 1;
-            if(strstr(p, "libtcmalloc_minimal_debug.so.4"))
-                box64_tcmalloc_minimal = 1;
-            if(strstr(p, "libasan.so"))
-                box64_tcmalloc_minimal = 1; // it seems Address Sanitizer doesn't handle dlsym'd malloc very well
-            ParseList(p, &ld_preload, 0);
-            if (ld_preload.size && box64_log) {
-                printf_log(LOG_INFO, "BOX64 trying to Preload ");
-                for (int i=0; i<ld_preload.size; ++i)
-                    printf_log(LOG_INFO, "%s ", ld_preload.paths[i]);
-                printf_log(LOG_INFO, "\n");
-            }
+    }
+    if(getenv("LD_PRELOAD")) {
+        char* p = getenv("LD_PRELOAD");
+        if(strstr(p, "libtcmalloc_minimal.so.0"))
+            box64_tcmalloc_minimal = 1;
+        if(strstr(p, "libtcmalloc_minimal.so.4"))
+            box64_tcmalloc_minimal = 1;
+        if(strstr(p, "libtcmalloc_minimal_debug.so.4"))
+            box64_tcmalloc_minimal = 1;
+        if(strstr(p, "libasan.so"))
+            box64_tcmalloc_minimal = 1; // it seems Address Sanitizer doesn't handle dlsym'd malloc very well
+        AppendList(&ld_preload, p, 0);
+        if (ld_preload.size && box64_log) {
+            printf_log(LOG_INFO, "BOX64 trying to Preload ");
+            for (int i=0; i<ld_preload.size; ++i)
+                printf_log(LOG_INFO, "%s ", ld_preload.paths[i]);
+            printf_log(LOG_INFO, "\n");
         }
     }
     // print PATH and LD_LIB used

src/elfs/elfloader.c

@@ -928,7 +928,7 @@ void AddSymbols(lib_t *maplib, elfheader_t* h)
     checkHookedSymbols(h);
     #endif
 }
-
+extern path_collection_t box64_addlibs;
 /*
 $ORIGIN – Provides the directory the object was loaded from. This token is typical
 used for locating dependencies in unbundled packages. For more details of this
@@ -1021,7 +1021,12 @@ int LoadNeededLibs(elfheader_t* h, lib_t *maplib, int local, int bindnow, int de
     for (size_t i=0; i<h->numDynamic; ++i)
         if(h->Dynamic[i].d_tag==DT_NEEDED)
             h->needed->names[j++] = h->DynStrTab+h->delta+h->Dynamic[i].d_un.d_val;
-
+    if(h==my_context->elfs[0] && box64_addlibs.size) {
+        for(int i=0; i<box64_addlibs.size; ++i) {
+            printf_log(LOG_INFO, "BOX64, Adding %s to needed libs of %s\n", box64_addlibs.paths[i], h->name);
+            add1lib_neededlib_name(h->needed, NULL, box64_addlibs.paths[i]);
+        }
+    }
     // TODO: Add LD_LIBRARY_PATH and RPATH handling
     if(AddNeededLib(maplib, local, bindnow, deepbind, h->needed, h, box64, emu)) {
         printf_log(LOG_INFO, "Error loading one of needed lib\n");

src/include/box64context.h

@@ -69,6 +69,7 @@ needed_libs_t* new_neededlib(int n);
 needed_libs_t* copy_neededlib(needed_libs_t* needed);
 void add1_neededlib(needed_libs_t* needed);
 void add1lib_neededlib(needed_libs_t* needed, library_t* lib, const char* name);
+void add1lib_neededlib_name(needed_libs_t* needed, library_t* lib, const char* name);
 void add1libref_neededlib(needed_libs_t* needed, library_t* lib);
 
 typedef struct base_segment_s {

src/librarian/library.c

@@ -1180,6 +1180,25 @@ void add1lib_neededlib(needed_libs_t* needed, library_t* lib, const char* name)
     needed->size++;
     needed->init_size++;
 }
+void add1lib_neededlib_name(needed_libs_t* needed, library_t* lib, const char* name)
+{
+    if(!needed || !name)
+        return;
+    // check if lib is already present
+    for (int i=0; i<needed->size; ++i)
+        if(!strcmp(needed->names[i], name))
+            return;
+    // add it
+    if(needed->size==needed->cap) {
+        needed->cap = needed->size+1;
+        needed->libs = (library_t**)realloc(needed->libs, needed->cap*sizeof(library_t*));
+        needed->names = (char**)realloc(needed->names, needed->cap*sizeof(char*));
+    }
+    needed->libs[needed->size] = lib;
+    needed->names[needed->size] = (char*)name;
+    needed->size++;
+    needed->init_size++;
+}
 void add1libref_neededlib(needed_libs_t* needed, library_t* lib)
 {
     if(!needed || !lib)

src/tools/rcfile.c

@@ -46,6 +46,9 @@ static const char default_rcfile[] =
 "[LotCG.x86_64]\n"
 "BOX64_DYNAREC_FASTROUND=0\n"
 "\n"
+"[Mini Metro]\n"
+"BOX64_ADDLIBS=stdc++.so.6\n"
+"\n"
 "[pressure-vessel-wrap]\n"
 "BOX64_NOGTK=1\n"
 "\n"
@@ -110,6 +113,7 @@ ENTRYBOOL(BOX64_JVM, box64_jvm)                         \
 ENTRYBOOL(BOX64_SDL2_JGUID, box64_sdl2_jguid)           \
 ENTRYINT(BOX64_MALLOC_HACK, box64_malloc_hack, 0, 2, 2) \
 ENTRYINTPOS(BOX64_MAXCPU, new_maxcpu)                   \
+ENTRYSTRING_(BOX64_ADDLIBS, new_addlibs)                \
 ENTRYSTRING_(BOX64_ENV, new_env)                        \
 ENTRYSTRING_(BOX64_ENV1, new_env1)                      \
 ENTRYSTRING_(BOX64_ENV2, new_env2)                      \
@@ -483,6 +487,7 @@ extern FILE* ftrace;
 extern char* ftrace_name;
 void openFTrace(const char* newtrace);
 void addNewEnvVar(const char* s);
+void AddNewLibs(const char* libs);
 #ifdef DYNAREC
 void GatherDynarecExtensions();
 #endif
@@ -574,6 +579,9 @@ void ApplyParams(const char* name)
         AppendList(&my_context->box64_emulated_libs, param->emulated_libs, 0);
         printf_log(LOG_INFO, "Applying %s=%s\n", "BOX64_EMULATED_LIBS", param->emulated_libs);
     }
+    if(param->is_new_addlibs_present) {
+        AddNewLibs(param->new_addlibs);
+    }
     if(param->is_new_env_present) {
         addNewEnvVar(param->new_env);
         printf_log(LOG_INFO, "Applying %s=%s\n", "BOX64_ENV", param->new_env);

src/wrapped/wrappedlibgl.c

@@ -435,12 +435,6 @@ static void* find_glGetVkProcAddrNV_Fct(void* fct)
         s->resolved = 1;                                                        \
         s->addr = (uintptr_t)find_glXSwapIntervalEXT_Fct(symb);                 \
     }                                                                           \
-    if(!box64_wine && GetLibInternal("libgcc_s.so.1")) {                        \
-        setNeededLibs(lib, 1, "libstdc++.so.6");                                \
-    }                                                                           \
-
-// This is a small hack to allow loading of libstdc++ as a dependancy for libGL as this is a the case with mesa. Some game, like Mini Metro on Steam don't have 
-// libstdc++.so.6 as a dependancy and yet needs it to run properly, rellying on other dependancies to work
 
 #include "wrappedlib_init.h"
 

system/box64.box64rc

@@ -113,6 +113,9 @@ BOX64_MAXCPU=4
 [LotCG.x86_64]
 BOX64_DYNAREC_FASTROUND=0
 
+[Mini Metro]
+BOX64_ADDLIBS=libstdc++.so.6
+
 [nacl_helper]
 BOX64_MALLOC_HACK=1