From 1cb376132eb05e5c9711bb9c8aa7cc4223de5635 Mon Sep 17 00:00:00 2001
From: Augustin Cavalier <waddlesplash@gmail.com>
Date: Mon, 22 Apr 2019 19:41:04 -0400
Subject: [PATCH] bootloader packagefs: Implement PrintErrorVarArgs.

The package kit calls this function to print errors it hits
when reading packages. We should never hit this in "normal
operation", but it should help with debugging #14993.
---
 src/system/boot/loader/file_systems/packagefs/packagefs.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/system/boot/loader/file_systems/packagefs/packagefs.cpp b/src/system/boot/loader/file_systems/packagefs/packagefs.cpp
index 3b5dbb59f2..a7f37c6608 100644
--- a/src/system/boot/loader/file_systems/packagefs/packagefs.cpp
+++ b/src/system/boot/loader/file_systems/packagefs/packagefs.cpp
@@ -287,6 +287,9 @@ struct PackageLoaderErrorOutput : BErrorOutput {
 
 	virtual void PrintErrorVarArgs(const char* format, va_list args)
 	{
+		char buffer[256];
+		vsnprintf(buffer, sizeof(buffer), format, args);
+		dprintf("%s", buffer);
 	}
 };