[Buildroot] [PATCH 1/1] boot/afboot-stm32: disable stack-protector

* [Buildroot] [PATCH 1/1] boot/afboot-stm32: disable stack-protector
@ 2022-12-31 10:14 Fabrice Fontaine
  2023-02-08 15:56 ` Thomas Petazzoni via buildroot
  0 siblings, 1 reply; 3+ messages in thread
From: Fabrice Fontaine @ 2022-12-31 10:14 UTC (permalink / raw)
  To: buildroot; +Cc: Lee Jones, Fabrice Fontaine

Disable stack-protector to avoid the following build failure:

/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld -T stm32f429.lds --gc-sections -o stm32f469i-disco.elf stm32f469i-disco.o gpio.o mpu.o qspi.o start_kernel.o usart-f4.o
/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld: stm32f469i-disco.o: in function `main':
stm32f469i-disco.c:(.text.startup.main+0x3b0): undefined reference to `__stack_chk_guard'
/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld: stm32f469i-disco.c:(.text.startup.main+0x4c0): undefined reference to `__stack_chk_fail'
/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld: stm32f469i-disco.c:(.text.startup.main+0x4ec): undefined reference to `__stack_chk_guard'

Fixes:
 - http://autobuild.buildroot.org/results/fa6ffab24c3998f21034ab24e8d2852cacde08c1

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 ...003-Makefile-disable-stack-protector.patch | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 boot/afboot-stm32/0003-Makefile-disable-stack-protector.patch

diff --git a/boot/afboot-stm32/0003-Makefile-disable-stack-protector.patch b/boot/afboot-stm32/0003-Makefile-disable-stack-protector.patch
new file mode 100644
index 0000000000..27a81b45d5
--- /dev/null
+++ b/boot/afboot-stm32/0003-Makefile-disable-stack-protector.patch
@@ -0,0 +1,36 @@
+From d65b07d6fe438e760fdbc33a8e42650a27d5b417 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Sat, 31 Dec 2022 11:09:38 +0100
+Subject: [PATCH] Makefile: disable stack-protector
+
+Disable stack-protector to avoid the following build failure:
+
+/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld -T stm32f429.lds --gc-sections -o stm32f469i-disco.elf stm32f469i-disco.o gpio.o mpu.o qspi.o start_kernel.o usart-f4.o
+/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld: stm32f469i-disco.o: in function `main':
+stm32f469i-disco.c:(.text.startup.main+0x3b0): undefined reference to `__stack_chk_guard'
+/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld: stm32f469i-disco.c:(.text.startup.main+0x4c0): undefined reference to `__stack_chk_fail'
+/home/autobuild/autobuild/instance-14/output-1/host/bin/arm-buildroot-linux-gnueabi-ld: stm32f469i-disco.c:(.text.startup.main+0x4ec): undefined reference to `__stack_chk_guard'
+
+Fixes:
+ - http://autobuild.buildroot.org/results/fa6ffab24c3998f21034ab24e8d2852cacde08c1
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ Makefile | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile b/Makefile
+index 8f42be1..8da7a25 100644
+--- a/Makefile
++++ b/Makefile
+@@ -14,6 +14,7 @@ CFLAGS := -mthumb -mcpu=cortex-m4
+ CFLAGS += -ffunction-sections -fdata-sections
+ CFLAGS += -Os -std=gnu99 -Wall
+ CFLAGS += -fno-builtin
++CFLAGS += -fno-stack-protector
+ LINKERFLAGS := --gc-sections
+ 
+ obj-y += gpio.o mpu.o qspi.o start_kernel.o
+-- 
+2.35.1
+
-- 
2.35.1

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