Added BOX86_NOCRASHHANDLER to ignore crashhandler.so (for #1012)

docs/USAGE.md

@@ -275,6 +275,11 @@ Disables the load of vulkan libraries.
  * 0 : Load vulkan libraries if found.
  * 1 : Disables the load of vulkan libraries, both the native and the i386 version (can be useful on Pi4, where the vulkan driver is not quite there yet.)
 
+#### BOX86_NOCRASHHANDLER *
+Diables crashhandler.so
+* 0 : Regular process for crashhandler.so (Default)
+* 1 : Do not load crashhandler.so, even if present
+
 #### BOX86_FUTEX_WAITV *
 Use of the new fuext_waitc syscall
  * 0 : Do not try to use it, return unsupported (Default for BAD_SIGNAL build)

src/include/debug.h

@@ -61,6 +61,7 @@ extern int box86_musl;
 extern int box86_nopulse;   // disabling the use of wrapped pulseaudio
 extern int box86_nogtk; // disabling the use of wrapped gtk
 extern int box86_novulkan;  // disabling the use of wrapped vulkan
+extern int box86_nocrashhandler;
 extern int box86_futex_waitv;
 extern int box86_mapclean;
 extern int box86_showsegv;

src/librarian/library.c

@@ -452,6 +452,15 @@ library_t *NewLibrary(const char* path, box86context_t* context, elfheader_t* ve
             return NULL;
         }
     }
+    if(box86_nocrashhandler) {
+        if(strstr(lib->name, "crashhandler.so")==lib->name) {
+            box_free(lib->name);
+            box_free(lib->path);
+            initDummyLib(lib);
+            //box_free(lib);
+            return NULL;
+        }
+    }
     int notwrapped = FindInCollection(lib->name, &context->box86_emulated_libs);
     int essential = isEssentialLib(lib->name);
     if(!notwrapped && box86_prefer_emulated && !essential)

src/main.c

@@ -131,6 +131,7 @@ int box86_musl = 0;
 int box86_nopulse = 0;
 int box86_nogtk = 0;
 int box86_novulkan = 0;
+int box86_nocrashhandler = 0;
 #ifdef BAD_SIGNAL
 int box86_futex_waitv = 0;
 #else
@@ -573,6 +574,15 @@ void LoadLogEnv()
         if(!box86_libcef)
             printf_log(LOG_INFO, "Dynarec will not detect libcef\n");
     }
+    p = getenv("BOX86_NOCRASHHANDLER");
+    if(p) {
+        if(strlen(p)==1) {
+            if(p[0]>='0' && p[0]<='1')
+                box86_nocrashhandler = p[0]-'0';
+        }
+        if(box86_nocrashhandler)
+            printf_log(LOG_INFO, "Box86 will consider crashhnadler.so to not be present\n");
+    }
     p = getenv("BOX86_SDL2_JGUID");
     if(p) {
         if(strlen(p)==1) {

src/tools/rcfile.c

@@ -52,6 +52,7 @@ ENTRYSTRING_(BOX86_BOX64, box64)                        \
 ENTRYSTRING_(BOX86_LD_PRELOAD, ld_preload)              \
 ENTRYBOOL(BOX86_NOSANDBOX, box86_nosandbox)             \
 ENTRYBOOL(BOX86_LIBCEF, box86_libcef)                   \
+ENTRYBOOL(BOX86_NOCRASHHANDLER, box86_nocrashhandler)   \
 ENTRYBOOL(BOX86_SDL2_JGUID, box86_sdl2_jguid)           \
 ENTRYBOOL(BOX86_MUTEX_ALIGNED, box86_mutex_aligned)     \
 ENTRYINT(BOX86_MALLOC_HACK, box86_malloc_hack, 0, 2, 2) \

system/box86.box86rc

@@ -76,6 +76,7 @@ BOX86_NOGTK=1
 BOX86_DYNAREC_STRONGMEM=1
 BOX86_X11COLOR16=1
 BOX86_DYNAREC_CALLRET=0 #it seems to be unstable in some cases, so disabling (for #920)
+#BOX86_NOCRASHHANDLER=1
 
 [streaming_client]
 BOX86_EMULATED_LIBS=libSDL2-2.0.so.0:libSDL2_ttf-2.0.so.0