From 886e19611e58635b0302c7d1b1effb9d2c89bf0b Mon Sep 17 00:00:00 2001
From: Steven Hugg <hugg@fasterlight.com>
Date: Fri, 5 Jan 2024 12:23:54 -0500
Subject: [PATCH] arm32: crt0 update for malloc

---
 src/worker/lib/arm32/crt0.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/worker/lib/arm32/crt0.c b/src/worker/lib/arm32/crt0.c
index 13c02637..541b6f19 100644
--- a/src/worker/lib/arm32/crt0.c
+++ b/src/worker/lib/arm32/crt0.c
@@ -1,4 +1,8 @@
 
+extern void _end;
+
+void malloc_addblock(void* addr, int size);
+
 int entry();
 
 __attribute__((weak, naked, noinline, noreturn)) void _start() {
@@ -8,6 +12,8 @@ __attribute__((weak, naked, noinline, noreturn)) void _start() {
     asm("__bss_end__ = _end");
     // set stack pointer
     asm("mov sp, #0x100000");
+    // allocate heap block
+    malloc_addblock(&_end, (void*)0xf0000 - &_end);
     // run main()
     entry();
     // wait for next video frame