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ucode: write ucode runtime exceptions to stderr

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Write unhandled exceptions in invoked ucode method handlers to stderr in
order to simplify debugging failing scripts.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2022-09-21 23:10:51 +02:00
parent e80d0b2d77
commit 8c852b656b
1 changed files with 18 additions and 0 deletions
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18
ucode.c
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@ -401,6 +401,7 @@ rpc_ucode_script_call(struct ubus_context *ctx, struct ubus_object *obj,
rpc_ucode_script_t *script = rpc_ucode_obj_to_script(obj);
uc_value_t *func, *args = NULL, *reqobj, *reqproto, *res;
rpc_ucode_call_ctx_t *callctx;
const char *extype;
size_t i;
int rv;
@ -499,6 +500,23 @@ rpc_ucode_script_call(struct ubus_context *ctx, struct ubus_object *obj,
/* treat other exceptions as unknown error */
default:
switch (script->vm.exception.type) {
case EXCEPTION_SYNTAX: extype = "Syntax error"; break;
case EXCEPTION_RUNTIME: extype = "Runtime error"; break;
case EXCEPTION_TYPE: extype = "Type error"; break;
case EXCEPTION_REFERENCE: extype = "Reference error"; break;
default: extype = "Exception";
}
res = ucv_object_get(
ucv_array_get(script->vm.exception.stacktrace, 0),
"context", NULL);
fprintf(stderr,
"Unhandled ucode exception in '%s' method!\n%s: %s\n\n%s\n",
ubus_method_name, extype, script->vm.exception.message,
ucv_string_get(res));
ubus_complete_deferred_request(ctx, &callctx->req, UBUS_STATUS_UNKNOWN_ERROR);
callctx->replied = true;
break;