fix(pkg/loader): isolate CGO inside an .so from the outer one

ekoops · leogr · poiana · commit 6f778b5adc3c · 2025-09-02T16:44:00.000+02:00
Signed-off-by: Leonardo Di Giovanna &lt;leonardodigiovanna1@gmail.com&gt;
Co-authored-by: Leonardo Grasso &lt;me@leonardograsso.com&gt;
diff --git a/pkg/loader/plugin_loader.c b/pkg/loader/plugin_loader.c
@@ -112,7 +112,7 @@ plugin_handle_t* plugin_load(const char* path, char* err) {
 		}
 	}
 #else
-	ret->handle = dlopen(path, RTLD_LAZY);
+	ret->handle = dlopen(path, RTLD_LAZY|RTLD_DEEPBIND);
 	if(ret->handle == NULL) {
 		plugin_loader_strlcpy(err, (const char*)dlerror(), PLUGIN_MAX_ERRLEN);
 	}
diff --git a/pkg/loader/strlcpy.patch b/pkg/loader/strlcpy.patch
@@ -80,7 +80,7 @@ index 2943335..7bebeeb 100644
  		}
  	}
  #else
- 	ret->handle = dlopen(path, RTLD_LAZY);
+	ret->handle = dlopen(path, RTLD_LAZY|RTLD_DEEPBIND);
  	if(ret->handle == NULL) {
 -		strlcpy(err, (const char*)dlerror(), PLUGIN_MAX_ERRLEN);
 +		plugin_loader_strlcpy(err, (const char*)dlerror(), PLUGIN_MAX_ERRLEN);

Original file line number	Diff line number	Diff line change
`@@ -112,7 +112,7 @@ plugin_handle_t* plugin_load(const char* path, char* err) {`
`112`	`112`	`}`
`113`	`113`	`}`
`114`	`114`	`#else`
`115`		`- ret->handle = dlopen(path, RTLD_LAZY);`
	`115`	`+ ret->handle = dlopen(path, RTLD_LAZY\|RTLD_DEEPBIND);`
`116`	`116`	`if(ret->handle == NULL) {`
`117`	`117`	`plugin_loader_strlcpy(err, (const char*)dlerror(), PLUGIN_MAX_ERRLEN);`
`118`	`118`	`}`
Original file line number	Diff line number	Diff line change
`@@ -80,7 +80,7 @@ index 2943335..7bebeeb 100644`
`80`	`80`	`}`
`81`	`81`	`}`
`82`	`82`	`#else`
`83`		`- ret->handle = dlopen(path, RTLD_LAZY);`
	`83`	`+ ret->handle = dlopen(path, RTLD_LAZY\|RTLD_DEEPBIND);`
`84`	`84`	`if(ret->handle == NULL) {`
`85`	`85`	`- strlcpy(err, (const char*)dlerror(), PLUGIN_MAX_ERRLEN);`
`86`	`86`	`+ plugin_loader_strlcpy(err, (const char*)dlerror(), PLUGIN_MAX_ERRLEN);`