From: Keith Packard <keithp@keithp.com>
Date: Sun, 16 Feb 2025 22:03:30 +0000 (-0800)
Subject: altos: Use smaller crt0 for stm boot loader
X-Git-Tag: 1.9.20~1^2~18
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=13ca1bb20a199447f6e478871f459498d2928bc2;p=fw%2Faltos

altos: Use smaller crt0 for stm boot loader

This eliminates some of unnecessary startup code and saves a bit of
flash.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/stm/Makefile-flash.defs b/src/stm/Makefile-flash.defs
index 77681158..3b0f0bad 100644
--- a/src/stm/Makefile-flash.defs
+++ b/src/stm/Makefile-flash.defs
@@ -35,7 +35,7 @@ IDPRODUCT=0x000a
 
 CFLAGS = $(PRODUCT_DEF) $(STM_CFLAGS)
 
-LDFLAGS=$(CFLAGS) -L$(TOPDIR)/stm -Taltos-loader.ld -n
+LDFLAGS=$(CFLAGS) -L$(TOPDIR)/stm -Taltos-loader.ld -n --crt0=minimal
 
 PROGNAME=$(HARDWARE)-altos-flash
 PROG=$(PROGNAME)-$(VERSION).elf