From: Nathael Pajani <nathael.pajani@ed3l.fr>
Date: Thu, 4 Dec 2014 02:23:18 +0000 (+0100)
Subject: -ffreestanding Assert that compilation targets a freestanding environment (one with... 
X-Git-Url: http://git.techno-innov.fr/?a=commitdiff_plain;h=05740a6edd900094c5e595bfab7adb569a1784ae;p=soft%2Flpc122x%2Fcore

-ffreestanding Assert that compilation targets a freestanding environment (one with no OS and none of the related stuff) -nostdlib prevents inclusion of standard libraries, which or not present in our system. Requiered parts have been re-implemented (mostly a copy from the Linux kernel code)
---

diff --git a/Makefile b/Makefile
index a6659bf..008a803 100644
--- a/Makefile
+++ b/Makefile
@@ -7,9 +7,10 @@ ARCH = armv6-m
 
 CROSS_COMPILE = arm-linux-gnueabi-
 CC = $(CROSS_COMPILE)gcc
-FOPTS = -fno-builtin -ffunction-sections -fdata-sections
+FOPTS = -fno-builtin -ffunction-sections -fdata-sections -ffreestanding
 CFLAGS = -Wall -O2 -mthumb -mcpu=$(CPU) $(FOPTS)
-LINKOPTS = -static -nostartfiles -Wl,--gc-sections -Wl,--build-id=none \
+LINKOPTS = -static -nostartfiles -nostdlib \
+		   -Wl,--gc-sections -Wl,--build-id=none \
 		   -Wl,-Map=lpc_map_$(LPC).map -Tlpc_link_$(LPC).ld